Independent guide · we don’t clean ducts

Air Duct Cleaning Scams

Direct answer

Air duct cleaning scams are real, but the documented cases are narrower and more specific than the internet suggests. State attorneys general have won cases involving advertised prices of $29 to $55 that turned into bills over $1,000, “regular” prices that were never charged, spoofed caller ID, and fake reviews. Much of what gets called a scam is actually aggressive upselling, misleading fine print, or simply poor work — different problems with different remedies.

Four different problems that all get called “a scam”

Homeowners use one word for four unrelated situations. Regulators do not, and neither should you, because the response to each is different. Sorting your own experience into the right box tells you whether you are looking at a police matter, a consumer complaint, a chargeback, or a bad afternoon.

The four categories, what separates them, and where each one goes
CategoryDefining featureDocumented exampleYour realistic remedy
(a) Documented fraud Statements of fact that were untrue: prices never charged, identities disguised, reviews manufactured, memberships sold as service that were only inspections. Washington State Attorney General’s case ending in a $10 million penalty. State attorney general or consumer protection division. This is law enforcement territory.
(b) Aggressive but legal upselling Real add-ons recommended on site under pressure. Not unlawful in itself. The evidentiary line is crossed when identical work is priced wildly differently between customers. Oregon Department of Justice complaint: the same UV light billed at $40 and at $775. Refuse on the spot, get a written itemized estimate, and dispute the charge if pressure was applied.
(c) Misleading advertising The headline number is technically achievable but the fine print excludes most of the job — rooms, vent counts, returns, or half the system. A Denver company’s $242 “whole house” ad that covered 5 rooms and 10 vents. Better Business Bureau complaint and state advertising rules. Often fixed without any fraud finding.
(d) Poor service quality The company did what it said and did it badly: debris blown into living space, equipment left worse than it was found. Michigan Attorney General’s warning about dirt blown onto drapes, carpets, and furniture. Demand a re-do or refund, then a contract or small-claims dispute. A bad job is not fraud.

Most of what circulates online as “duct cleaning scams” is category (c) with the vocabulary of category (a). That inflation is not harmless. It makes real enforcement cases look like generic complaints, and it makes honest companies with sloppy coupon design look like criminals.

What the enforcement record actually shows

These are court and attorney general records, not survey results or industry blog posts. Each is a specific company in a specific state, and each one is linked in the sources at the foot of this page.

Washington State: robocalls, spoofing, and a $10 million judgment

The Washington State Attorney General sued three related duct cleaning companies in September 2019, and this one did not stop at the complaint: it was litigated to a ruling and a penalty, which is why it can be described in the past tense Verified fact. The state documented more than 13 million robocalls to over a million Washington residents, with one consumer receiving 169 calls. The companies used caller ID spoofing across more than 100 numbers, displaying local-sounding names such as “Seattle Duct Cleaning.”

The pricing findings the state set out are the part worth memorizing. Services were advertised at $29 to $55. Charges frequently exceeded $1,000. Coupons displayed a “regular” price of $150 to $225 that the company had never actually charged anyone, which is what converts a discount claim into a false statement of fact. The advertisements omitted that only half of the heating and cooling system was included in the advertised price. The companies also sold roughly $1,200 “VIP memberships” that entitled the customer only to annual visual inspections, not cleaning. Around 100 fake five-star reviews were posted in a single week.

In June 2020 the court ruled the companies had engaged in unlawful robocalling. In August 2020 a judge ordered $10 million in penalties plus a permanent injunction.

Why the telemarketing charge matters

In several of these cases the pricing deception traveled together with telemarketing violations, and the telemarketing count was the easier legal hook. Robocall volume is countable; “the price felt unfair” is not. That is a fact about how these cases get built, and it explains why the biggest duct cleaning judgments are technically robocall judgments.

Oregon: the same product at $40 and at $775

The Oregon Department of Justice filed a civil complaint in Multnomah County on October 16, 2019 against the same corporate family Verified fact. The filing, its court, and its date are the part of this that is on the record. Everything the complaint says about the defendants’ conduct is a state allegation, and we located no judgment resolving it.

What the state pleaded: services advertised at $39 to $55 against claimed “regular” prices of $169 to $225, with the complaint alleging “Defendants have never sold the advertised service for $169 or $225,” and upsell plans offered at $825, $2,500, and $3,500 Alleged, not proven.

The single most useful detail in the entire published record sits in this complaint. The state alleges that the same ultraviolet light was sold to one customer for $40 and to another for $775, and that a sanitizing spray was charged at anywhere from $1 to over $300 Alleged, not proven. Technicians, according to the complaint, were given a general range to charge rather than a price.

That is the clean line between category (b) and category (a). An upsell has a price. If the price depends entirely on what the technician thinks the customer will pay, the “price” was never a price.

Fairness note on the Oregon complaint

This complaint does not allege fabricated mold claims, faked before-and-after photographs, or planted debris. We mention that because those three allegations are frequently attributed to this case online. They are not in it.

New Jersey: coupon bait and $1.71 million in penalties

The New Jersey Division of Consumer Affairs announced action in April 2011 against companies operating as United Air Care and Indoor Air Care Verified fact. Coupons advertised “Whole Duct House Cleaning” at $37.95 to $69.95, which the state said were used to “bait the buyer into purchasing higher-priced services.” The companies were also unregistered as home improvement contractors. The result was $1.71 million in civil penalties plus $68,157.36 in restitution.

Illinois: a January 2011 complaint alleging mold that was not there

Keep two things apart here, because only one of them is established. A case was filed. People of the State of Illinois v. Warranty USA Inc., et al. was filed in the Circuit Court of Cook County on January 11, 2011, naming a Schaumburg air duct cleaning operation — Warranty USA Inc., trading as Air Duct Cleaning Pros — and its president Moshe Kesem Verified fact. A litigation report published by HarrisMartin Publishing in February 2011 independently records that filing, its court, and its date, and describes the complaint as running to 40 pages.

What the complaint says was never tested. The state alleged that the company told customers their ducts and heating systems were contaminated with mold that did not exist, in order to sell expensive remediation Alleged, not proven. The HarrisMartin report characterizes the same complaint as alleging false representations of mold contamination to justify expensive repairs. Both describe what the state claimed. Neither describes what a court decided.

This is the clearest case in our record of the mold upsell being treated as a fraud allegation rather than as sales pressure. It sits alongside the Better Business Bureau’s St. Louis warning and the Michigan Attorney General’s alert, both of which describe the same sequence from the consumer’s side: a finding announced on site, followed immediately by a price.

Two limits on it, and we hold to both. The Attorney General’s own announcement of the case went further than the independent litigation report does, saying the operator showed customers fabricated photographs of mold damage — an allegation we have found in that announcement and nowhere else Alleged, not proven Single source. And we located no judgment, settlement, or dismissal in any source. These were allegations in a complaint. Nothing here is a finding of liability against any person or company.

The date on this case is wrong almost everywhere it appears

You will see this lawsuit dated to 2018. That is because the surviving copy of the Attorney General’s announcement sits on a former officeholder’s campaign website under a 2018 web address, and that is the date the item was posted to that archive — not the date of the action. The case was filed on January 11, 2011, and repeating 2018 puts the event seven years out. The campaign site is also not the Illinois Attorney General’s official website, and we do not describe it as one. A case number appears in the HarrisMartin report; because it is printed there in a form Cook County’s numbering does not use, we cite the court and the filing date instead of the number.

Colorado: $35 advertised, up to $1,000 charged, and reopening under new names

In November 2013 the Colorado Attorney General moved against several related companies trading as Seabreeze Air, Quality Air, and Fresh Air, and a temporary restraining order was issued Verified fact. The state’s account was that the advertised price was $35 and consumers were charged up to $1,000, across more than 230 complaints. Unlike the Illinois and Oregon filings, this one did reach a final resolution, which is set out below.

The case did not stop at the restraining order. Against Andre Shatyko and Alexander Kurdyukov, trading as Seabreeze Air LLC, Quality Air, and Fresh Air LLC, $916,000 was ordered, reduced to $150,000 if paid, together with a permanent ban on advertising or performing air-duct cleaning services in Colorado Verified fact. That is the most severe outcome in our record after Washington’s $10 million: not a fine to be absorbed as a cost of doing business, but removal from the trade in that state.

The detail that makes the ban meaningful is how the case began. It involved phoenixing: telling courts the business had closed, then reopening under new names. A penalty against a company that can dissolve and reappear is worth less than an order that follows the individuals behind it. It is also why a company’s specific legal name, not just the brand painted on the van, is the thing worth checking before you book.

Correction, 15 August 2026

During pre-publication review on 15 August 2026 we caught this in our own draft: we had reported, as part of the Colorado record, that two to three hours were advertised for work actually requiring five to eight. That figure was misattributed. It comes from the general manager of a competing duct-cleaning company quoted by CBS Colorado in the same November 25, 2013 report, not from any attorney general filing. The passages relying on it were rewritten before the page went live, and it is logged in our corrections policy because a claim we nearly published is worth disclosing too.

Michigan: the “blow-and-go” warning

Michigan Attorney General Dana Nessel issued a consumer alert in December 2023 about air duct cleaning scams. Verified fact The pattern described is rock-bottom advertised pricing followed by on-site upselling, including mold removal, and work performed so carelessly that dirt is blown onto drapes, carpets, and furniture. The alert also lists social media red flags: generic geographic account names such as “Duct Cleaners Michigan,” recently created accounts, locked profiles, and posts that protest the service is not a scam.

Separately, a Michigan Attorney General action against Kohn Home Cleaning Services appears in the action list for Operation Call It Quits, the nationwide robocall sweep announced in June 2019.

Missouri and North Dakota: two smaller but instructive cases

A Better Business Bureau warning from St. Louis in November 2011 described $49 advertised specials producing bills of $1,799, $2,700, $2,780, and $3,000, including an 81-year-old consumer charged $1,799. Verified fact Technicians were reported to “discover” mold, bacteria, or furnace problems and press for an immediate purchase.

In January 2025, a Fargo television investigation reported a homeowner who responded to a $298 offer posted on a neighborhood app and received a $399 invoice, after which the heating system failed within days. Single source North Dakota and Minnesota Secretary of State and Attorney General offices could not identify the business as licensed. That case sits mostly in category (d), and it is a reminder that “is this company registered at all” is a faster question than “is this company honest.”

Oregon and Washington consumers, in their own words

A television investigation in the Pacific Northwest documented two homeowners who responded to the same style of advertisement. Verified fact One responded to a $39 duct and $99 furnace offer and received a $1,250 bill including a five-year VIP membership, which was later sent to collections. Another responded to a $39 advertisement and ended with a $1,794 VIP package. She described being home alone with her children when two men arrived and said she “felt cornered and pressured.”

That is the mechanism. The advertised price does not exist to be sold. It exists to place two technicians inside your house at a moment when saying no is socially expensive.

A technician who inspects your system and recommends a coil cleaning, a UV light, or a sanitizing treatment is not committing a crime. Duct systems do sometimes need more than a basic cleaning, and a company that never recommends anything is not necessarily more honest.

The evidentiary markers that regulators actually used are narrower than “they tried to sell me something”:

  • Identical work at wildly different prices. Oregon’s alleged 19-fold spread on one UV light is the clearest published example. If the price of an add-on is not written down anywhere, there is no price.
  • A discount from a price that was never charged. Both Washington and Oregon documented “regular” prices the companies had never sold at. A discount claim is a statement of fact about past prices, and it can be false.
  • Findings that cannot be verified. The National Air Duct Cleaners Association (NADCA), the industry’s own trade body, warns that being told mold or another dangerous substance is present without a proper inspection is a red flag. Industry guidance When an industry association says this about its own market, take it seriously.
  • Payment demanded before the work is described in writing. An itemized written estimate before work begins is not an unreasonable request, and its absence is the condition every one of these cases depended on.

None of that makes a same-day recommendation automatically dishonest. It makes an unpriced, unwritten, unverifiable, same-day recommendation a bad thing to accept.

The sanitizing, antimicrobial, and biocide upsell

Understand first what is being proposed, because the name changes and the thing does not. After the mechanical cleaning, a chemical product is sprayed or fogged through the ductwork. It gets sold as sanitizing, disinfecting, an antimicrobial treatment, fogging, or deodorizing. It is a separate application with a separate price, it is the add-on most often attached to a low advertised price, and EPA registers products of this kind as biocides under federal pesticide labeling law. That is why what follows is a registration question rather than a matter of contract.

Published add-on pricing runs roughly $75 to $250 Typical range across three consumer cost guides. The enforcement record shows something different. Oregon’s Department of Justice alleges that one corporate family charged for sanitizing spray at anywhere from $1 to over $300 Alleged, not proven, with technicians given a general range to charge rather than a price. A published range tells you roughly what a product costs. A spread like that on one company’s invoices tells you the number was tracking the customer.

The EPA’s position, stated precisely:

  • A small number of products are registered by the EPA specifically for use on the inside of bare sheet metal air ducts. So it is not accurate to say that all duct sanitizers are unregistered or unlawful.
  • No products are currently registered by the EPA as biocides for use on fiberglass duct board or fiberglass-lined ducts. If your system has fiberglass duct board or an internal fiberglass liner, there is no EPA-registered biocide for it.
  • Applying a general-purpose disinfectant inside an HVAC system whose label does not specifically authorize heating, ventilation, and air-conditioning (HVAC) use is a use inconsistent with labeling. Using a pesticide product inconsistently with its label directions violates federal law. A product must be EPA-registered for a specific use before it can legally be used for that purpose.
  • The EPA notes that a general “hard, non-porous surfaces” claim on a label does not extend to HVAC components unless HVAC use is specifically included on that label, and warns such use could produce significant indoor exposures.
  • Little research has been conducted demonstrating the effectiveness of most biocides and ozone used inside ducts, and little is known about the potential toxicity of these products under typical use conditions.

The practical consequence: “antimicrobial fogging” of a fiberglass-lined duct system has no EPA-registered basis. That is not a claim that any particular company broke the law — label compliance depends on the specific product and the specific duct material. It is a claim about what you are entitled to ask. The fiberglass insulation manufacturers’ own recommended practice points the same way from the other side: NAIMA endorses and recommends no specific sanitizing agent, and cautions that such agents offer limited effectiveness Industry guidance.

The two questions that end this conversation

“What duct material do I have — bare sheet metal, fiberglass duct board, or internally lined?” and “May I photograph the product label, including the EPA registration number and the approved use sites?” The label is the document that settles it, it is on the container in the truck, and EPA’s own framing gives you the standing to ask: a pesticide product used inconsistently with its label directions violates federal law, so what the label authorizes is the whole question. A company applying a properly registered product to an appropriate surface has no reason to decline either request.

The same visit sometimes produces a proposal to coat the inside of the ductwork to seal contaminants in place, offered as an alternative to removing them. On this one the agreement is unusually broad: EPA reports that it, NADCA, the North American Insulation Manufacturers Association and the Sheet Metal and Air Conditioning Contractors’ National Association do not currently recommend the routine use of sealants to encapsulate contaminants in any type of duct Verified fact. EPA adds that little is known about the potential toxicity of these products under typical use conditions, or in the event they catch fire.

Keep that separate from duct sealing as an energy service, which is closing leaks at joints and seams from the outside. EPA draws the line itself on the same page: encapsulating the inside surfaces of ducts is a different practice from sealing duct air leaks, and it is leak sealing that saves money on heating and cooling bills. One word, two products, opposite recommendations.

One more point that regulators do not make but the EPA’s own guidance implies: if insulated ducts have insulation that got wet or moldy, that insulation cannot be effectively cleaned and should be removed and replaced. A chemical treatment sold as an alternative to replacement is selling you something the EPA says will not work.

If the upsell is mold work, a separate licensing regime may apply

Duct cleaning itself is not a licensed trade in any of the eight states whose contractor rules we read — California, Florida, Texas, New Jersey, Michigan, Arizona, Washington, and Hawaii — which is set out in full in our survey of what licensing does and does not exist in this trade. Mold work can be. Florida and Texas both license mold assessment and mold remediation as regulated activities in their own right, and Texas defines mold remediation to include the cleaning and sanitizing of mold-contaminated matter — which is to say, the thing being sold at your door may fall inside a licensing scheme even though the duct cleaning around it does not. Verified fact

Florida goes further and legislates against the conflict of interest that sits at the center of every mold upsell in this page’s enforcement record. A mold assessor there may not remediate a structure they assessed within the previous 12 months, a remediator may not assess a structure they remediated in that window, and neither may accept referral compensation from the other. Repeat violations escalate to a third-degree felony.

Ask the question; do not make the accusation

Exemptions exist and they are broad enough to matter. Florida exempts persons acting within the scope of a contractor license under chapter 489, and Texas exempts work under 25 contiguous square feet, among others. A duct cleaning company proposing mold work is therefore not doing anything unlawful by virtue of proposing it, and we make no such suggestion about anyone.

What this gives you is a question with a real answer behind it: who is licensed to say I have mold, and is the firm that found it permitted to sell me the remedy? Ask it where you live. This is a description of two states’ statutes as we read them, not legal advice, and your own state agency is the authority on what applies to you.

Category (c): advertising that is misleading without being fraud

In February 2013 the Better Business Bureau serving Denver and Boulder studied 62 air duct cleaning companies. Verified fact It asked 21 of them to change their advertising. 18 complied. Three refused and received F ratings.

Read that carefully, because it cuts both ways. Roughly a third of the companies studied had advertising the BBB considered defective — a large slice of a local market. But 18 of 21 fixed it when asked, and no fraud was alleged against them. That is a story about bad coupon design and competitive pressure to post the lowest visible number, not about organized deception.

The study also produced the best published example of per-vent fine print anywhere in the record. One company advertised $242 for “whole house air duct and carpet cleaning.” The fine print limited it to 5 rooms and 10 vents. The owner conceded: “It is not the whole house.”

NADCA warns about the same structure from the industry side, cautioning homeowners about extremely low-cost “whole house” specials that often cover only limited portions of the system and may exclude the air handler, blower fans, coils, registers, or the access openings needed to do the work at all. Industry guidance

So the useful test is not “is this price too low.” It is “how many vents, how many returns, and which components does this number include?” A typical home has more supply registers than most advertised specials cover, and returns are usually priced higher than supplies. Our cost calculator exists partly so you can convert an advertised headline into a realistic vent-count total before anyone knocks on your door, and the cost guide explains why published ranges disagree with each other.

Category (d): a bad job is not a crime

“Blow-and-go” is the industry’s own term for the low-effort version of this service, and it is used by both NADCA and the Michigan Attorney General. NADCA’s phrasing is direct: “Homeowners should beware of ‘blow-and-go’ air duct cleaning companies.” Industry guidance

The observable symptoms are physical. Dust appears on furnishings after the visit. The technician works from the registers only and never opens an access panel. The whole job takes under an hour in a house where the advertised scope would take several. No agency publishes a duration to measure that against, but the one figure from a consumer-research organization is Consumer Reports’, in February 2008: a quality job takes two technicians about 8 to 15 hours Single source. A rival duct-cleaning company’s manager told CBS Colorado in 2013 that a real job takes five to eight hours rather than the two to three being advertised — a competitor’s estimate, with the commercial interest that implies, but it points the same way. Nobody outside the advertisements describes this as a forty-minute service.

None of that is fraud. It is a service you paid for and did not receive, which is a contract problem with contract remedies — demand the work be redone, then dispute the charge with your card issuer, then small claims. Those routes are faster and more likely to recover your money than an attorney general complaint, which is aimed at stopping a pattern rather than compensating you.

Claims we could not verify, and why we say so

The following appear constantly in duct cleaning “scam” content. We went looking for the underlying source for each and could not find one that meets our standard. Publishing them anyway would make this page more dramatic and less true.

Widely repeated claims and what the record actually supports
ClaimOur finding
The “$99 whole house special” scam Not verified as a factual anchor. The phrase is repeated widely online, but every instance we traced led back to competitor HVAC marketing content, never to a regulator, a Better Business Bureau study, or a news investigation. The prices in documented enforcement actions cluster between $29 and $69.95. We write “advertised specials as low as $29” and cite the Washington Attorney General instead. The gap between the phrase’s popularity and its sourcing is itself worth knowing.
Companies show fake before-and-after photos The filing is verified; the photograph detail is not. The Illinois case described above is real, dated, and independently reported, and a second source records that the complaint alleged invented mold contamination — which corroborates that the allegation was made, not that it was true, since no court decided it. The specific claim that fabricated photographs were shown to customers appears only in the Attorney General’s own announcement of that case and in no independent source. We report it as a single-sourced allegation in one 2011 lawsuit, never as an established industry practice.
Technicians plant debris to stage a dirty duct Not verified. We found this only in industry marketing blogs, never in a government, court, or Better Business Bureau source. We treat it as folklore and do not publish it as a warning sign.
Scammers demand cash only Not verified. No government, Better Business Bureau, or NADCA source we reviewed reports this pattern for duct cleaning. We omit it. Note that in the documented cases the opposite is closer to true: financed VIP memberships and accounts sent to collections appear repeatedly.
Refusing to let you watch or inspect is a scam sign Not documented as a scam pattern, and the framing is backwards. The EPA puts it as a homeowner entitlement: you determine whether cleaning is needed by visual inspection, and you are entitled to see the system. Treat it as your right to demand proof, not as an accusation to level.
The Federal Trade Commission has cracked down on duct cleaners None found. We searched and did not locate a Federal Trade Commission (FTC) enforcement action against a duct cleaning company, which establishes what our search returned rather than that no such action exists anywhere. In Operation Call It Quits, the FTC’s own seven actions covered credit cards, money-making schemes, autodialers, solar leads, medical alerts, smoking cessation, and debt relief. The only duct cleaning entry on that list was a state action by the Michigan Attorney General. Accurately stated: duct cleaning telemarketing has been prosecuted by state attorneys general, and appeared in a nationwide robocall sweep coordinated by the FTC — but as a state action.

The fairness caveat this page owes the industry

Everything above is about specific companies. It is not a description of the trade as a whole, and a page about fraud has an obligation not to imply otherwise.

But the opposite error is just as bad. The EPA’s assessment that duct cleaning “has never been shown to actually prevent health problems” applies to the entire service category, including well-run, certified, thoroughly professional companies. Verified fact Hiring a better contractor does not convert duct cleaning into a health intervention. If we used that EPA line only as a stick to beat bad actors with, we would accidentally suggest that the service is health-protective when the right firm performs it, and the EPA does not support that.

The EPA does not recommend routine duct cleaning, only cleaning as needed, and identifies three conditions where it should be considered: substantial visible mold growth inside hard-surface ducts or on other HVAC components; a vermin infestation of rodents or insects; and excessive debris clogging the ducts with particles actually being released into the home from supply registers. Underlying causes must be corrected or the problem returns. Our page on whether you need this service at all works through those three conditions in detail — and the cheapest protection against every scam on this page is discovering you did not need the work.

Duct cleaning scam warning signs checklist

Every item below traces to a documented case or an official warning. Print this page or check the boxes on screen. If you check three or more, stop and get a second quote before anyone starts work.

Checking boxes is not an accusation

Several of these signs describe ordinary marketing practices used by honest companies. A low advertised price with clear fine print is legal. What the enforcement record shows is that these signs cluster: the companies that were successfully prosecuted showed most of them at once.

What a legitimate estimate contains

Rather than pattern-matching against bad companies, check the document. A written estimate that contains all of the following is very difficult to turn into any of the four problems above, because each element removes a place where a surprise can be inserted.

  1. The full legal business name, physical address, phone number, and any state registration or license number. Brand names change; entities are traceable.
  2. A count. The number of supply registers, the number of return grilles, and the number of separate heating and cooling systems in the home. Every published pricing model in the industry is built on one of these counts.
  3. An explicit component list. Which of the following are included and which are not: supply ducts, return ducts, the plenum, the air handler cabinet, the blower, and the evaporator coil. NADCA’s own warning about cheap whole-house specials names these as the components most often quietly excluded.
  4. Access openings. Whether cutting and properly sealing access openings is included, since a system cannot be cleaned through the registers alone.
  5. The method and equipment. Whether the work uses negative pressure with a collection unit, and what agitation tools — rotary brush, air whip — will be used. Steam or other moisture-introducing methods should never be used on ductwork.
  6. A total, not a starting point. A single number for the described scope, with any per-vent overage rate stated in advance rather than discovered later.
  7. The conditions under which the price can change, in writing, and a commitment that you will be shown and will approve any change before the work is done.
  8. Any chemical product named on the estimate, with its EPA registration number, the surfaces it is approved for, and why it is being proposed for your specific duct material.
  9. Proof of insurance you can verify with the carrier, not a photocopy.
  10. Before and after access. A statement that you may look inside the system before work begins and after it ends. The EPA frames the decision to clean as resting on visual inspection, which makes this your entitlement rather than a favor.

For price context: published sources put full-scope cleaning at $450 to $1,000 per heating and cooling system Single source, though that specific figure appears in an EPA document unchanged since at least January 2021 and has never been inflation-adjusted. Homeowner-reported spending clusters near $389 Single source — five publications carry that number, but all five draw on a single dataset. Our own planning range for a typical accessible single-system home is $300 to $700 Editorial estimate. A number far below that range is not proof of dishonesty, but it does mean the scope is smaller than the words suggest.

If I already paid, can I get the money back?

Sometimes, and speed matters. Dispute the charge with your card issuer first, since that has the shortest clock and the best odds of recovering money. File a complaint with your state attorney general’s consumer protection division and with the Better Business Bureau after that. Attorney general enforcement is aimed at stopping a pattern rather than refunding an individual, though restitution does occur — the New Jersey action included $68,157.36 in restitution alongside the penalties.

Is a company that cold-calls me automatically a scam?

No, but the documented cases relied heavily on it. Unsolicited recorded sales calls to residential numbers are separately regulated, and in the Washington case robocalling was the count the state actually won on. A company you found and contacted yourself starts from a very different position than one that dialed you.

Does hiring a certified company eliminate this risk?

It reduces some of it and not all of it. Certification is a voluntary industry credential, not a government license, and NADCA itself warns that some companies illegally use its logo or falsely claim membership — so a claim of membership needs verifying rather than believing. We cover what certification actually guarantees and what it does not separately.

Should I let them clean the ducts if they are already here and I said no?

You can decline work at the door, including work you agreed to by phone, and you should not feel obliged to justify it. If you have already signed something, ask for the cancellation terms in writing before anyone opens a panel. The pressure documented in these cases was applied precisely at this moment, with technicians inside the home.

What if they find mold?

Ask what the finding is based on. Visual inspection alone cannot confirm mold; the EPA notes that expert or laboratory analysis may be needed and puts laboratory confirmation of whether a substance is mold at roughly $50. A same-visit mold finding followed by a same-visit remediation quote is the exact sequence the Better Business Bureau and the Michigan Attorney General both describe, and it is what the Illinois Attorney General alleged in the 2011 case above. Then ask the licensing question: in Florida and Texas, mold assessment and mold remediation are separately licensed activities, with exemptions, so “what license covers the mold half of this proposal” is worth putting to your own state agency. Our page on mold in air ducts explains what a genuine finding looks like.

What to do next

Sources & references