Site Index

Start here

• DuctCleaning.ws home — the short version of the site’s position: most homes do not need routine duct cleaning, and the reasons why.
• Check your system against the three conditions — what the U.S. Environmental Protection Agency (EPA) says justifies the job, with a guided tool that walks you through it.
• What the service costs, and why the published figures disagree — the planning range, the scope question underneath it, and which numbers are actually supported.

Costs

• Cost hub — the entry point for everything about duct cleaning pricing, including how we build our planning range.
• Air duct cleaning cost — the main cost guide: pricing models, what changes the number, and the difference between what homeowners report paying and what a full-scope quote asks.
• Duct cleaning cost calculator — enter your vent count and system count and get a range, with the assumptions shown alongside the result.
• Calculator methodology — every rate, multiplier, and assumption the calculator uses, and which ones are our own judgment rather than published data.
• Mold removal cost — why published mold figures span a twentyfold range, and what those numbers are actually measuring.

Do I need cleaning?

• Should you clean your ducts? — the hub for the decision itself, and the honest answer for most homes.
• Do I need duct cleaning? — a walkthrough of the conditions that justify cleaning and the common symptoms that do not.
• Is air duct cleaning worth it? — what you get for the money, and what the evidence does not support you getting.
• How often should air ducts be cleaned? — why EPA gives a condition rather than an interval, and where the popular schedules come from.
• Does duct cleaning reduce dust? — the specific question most homeowners are really asking, and what studies have and have not shown.
• Air duct cleaning benefits: what holds up and what doesn’t — nine advertised benefits weighed one at a time against the evidence, with the drawbacks set out just as plainly. This is also the pros-and-cons page.
• Duct cleaning after a renovation — one of the strongest genuine cases for the work, and why whether the system ran unsealed during the building work decides almost everything.
• Duct cleaning for apartments and condos — no authority says who is responsible in a rental or a condominium, shared systems change the question entirely, and many units have no ductwork at all.
• Mobile and manufactured home duct cleaning — the federal HUD Code specifies this ductwork in detail and never mentions cleaning it; the documented problem is crossover duct damage and leakage.

Mold and moisture

• Mold hub — moisture, biological growth, and duct systems, organized around what you can actually verify.
• Mold in air ducts: checking the claim before you pay for it — why visual inspection is not confirmation, why the moisture source decides whether cleaning holds, and when insulation has to be replaced instead of cleaned.
• Air duct cleaning mold removal cost — the pricing side of the same problem, and why we refuse to publish a single tidy figure.

How it works

• How duct cleaning works — the hub for method and equipment, written for someone who wants to judge a company’s process description.
• The air duct cleaning process — what a full-system cleaning involves, step by step, including access openings and the components that are often skipped.
• How long does duct cleaning take? — no agency or standards body publishes a duration, the only consumer-research figure dates from 2008, and the hours you are quoted are really a statement about scope.
• Can duct cleaning damage your ducts? — EPA’s direct warning, the duct materials that are vulnerable to it, why an inadequate vacuum can leave a house worse off than doing nothing, and the asbestos precaution in older homes.
• Does duct cleaning make a mess? — done properly it should not, negative pressure is the reason, and what a state attorney general has documented about operators who skip it.
• HVAC and duct cleaning: what actually needs servicing — EPA declines to recommend routine duct cleaning on the same page where it tells homeowners to have the cooling coils and drain pans cleaned, and ENERGY STAR’s maintenance checklist never mentions ducts.
• DIY air duct cleaning — neither EPA nor NADCA addresses homeowners doing this themselves, so this page draws the boundary: registers, filters and inspection yes, everything past the register face no.
• Duct sealing vs duct cleaning — ENERGY STAR estimates 20 to 30 percent of the air moving through a typical duct system is lost to leaks. The intervention with real numbers behind it, set next to the one without.
• Duct cleaning vs duct replacement — every published trigger for replacing ductwork describes a condition, never an age, and no standard sets a service life for household duct.
• Air duct cleaning vs dryer vent cleaning — two unrelated services sold together, and only one of them has federal fire data and a HUD life-threatening deficiency behind it.

Hiring a professional

• Hiring a duct cleaner — the hub for choosing a company, comparing quotes, and knowing what to verify.
• NADCA certified duct cleaning — what certification from the National Air Duct Cleaners Association does and does not guarantee, and why the association warns about false membership claims.
• Questions to ask an air duct cleaning company — the specific questions that expose scope gaps in a quote before you sign it.
• Duct cleaning before and after: what the photos actually prove — why the standard photo pair is weak evidence, what peer-reviewed work says about air quality straight after a cleaning, and what real verification looks like.

Scams

• Air duct cleaning scams — the documented enforcement record, the difference between fraud and merely aggressive selling, and the claims that circulate online without any source behind them.

Problems

• Duct cleaning problems — what can go wrong during and after a cleaning, including damage to flexible duct and services that get confused with cleaning.
• Can air duct cleaning help with allergies? — the allergen guidance from EPA, the National Institutes of Health and the allergy specialty societies does not address ductwork at all, and this page sets out what it recommends instead. Symptoms belong with a doctor.
• Will duct cleaning remove smoke smell? — rarely, because smoke residue is absorbed throughout a building and the ductwork is only one reservoir among many.

Tools

• Tools and calculators — the hub for the interactive resources, with a plain description of what each one can and cannot tell you.
• Cost calculator — a planning range from your own vent and system count. Runs in your browser; no email address required.
• Calculator methodology — the arithmetic and the assumptions, published in full so the output can be argued with.
• Checklists — printable lists for inspecting your own system, screening a company, and reviewing completed work.

Reference

• Duct cleaning glossary — twenty terms defined once and used consistently across every page, with stable anchors for citation.
• Duct cleaning facts and figures — every figure we can trace to a named source, with its date and evidence strength, plus the claims we could not verify.
• Site index — this page.

About and policies

• About DuctCleaning.ws — what this site is, what it is not, and how it is funded.
• Editorial team — who writes this and how, including an honest account of the role AI tools play.
• Editorial policy — our source hierarchy, how claims are labeled, and what gets reviewed most often.
• Fact-checking policy — how a number earns its place on the site, with worked examples of checks that changed what we published.
• Corrections policy — how to report an error and how corrections are marked.
• Contact — what we can help with, and the two things we cannot do.
• Privacy policy — what the site collects today, which is very little, and what would change if that changes.
• Terms of use — the rules for using the site, in plain language.
• Disclaimer — the limits of what a publication can tell you about your own home.
• Affiliate disclosure — there are no affiliate links on the site today, and what will happen if that changes.