Direct answer
Three interactive resources and a set of printable checklists. The cost calculator turns your vent count into a planning range. The methodology page shows every rate and assumption behind it. The decision tool asks seven questions and tells you honestly when the answer is that you do not need this service. None of them ask for an email address, and none of them send your answers anywhere.
Duct cleaning cost calculator
What it does. You enter home size, supply vent and return grille counts, the number of heating and cooling systems, and a few details about stories, duct access, duct material, and how dirty the system appears. It returns a range built from the per-vent rates that are the best-supported figures in the published record, cross-checked against per-square-foot rates and floored by a minimum job charge. Sanitizing and dryer vent add-ons are priced separately.
What it does not do. It cannot see your house or your local labor market. It produces a planning range, not a quote, and no company is bound by its output. It does not decide whether you should have the work done; the decision tool handles that.
Who it is for. Someone with a quote in hand who wants to know whether the number is ordinary, and someone budgeting before calling anyone. A quote far above the range is not proof of anything dishonest. It is a reason to ask what the scope includes.
Calculator methodology
What it does. It publishes the whole model: both per-vent rates, the per-square-foot band, the minimum job charge, the multi-system tiers, and every adjustment for stories, access, duct type, and contamination. Each input is marked with where it came from. Some rates rest on four or more independent publications; some come from exactly one. Several adjustments have no published dollar basis at all, and the page says plainly that the direction is documented while the magnitude is our assumption.
What it does not do. It does not pretend the model is more precise than its inputs. Duct cleaning has no authoritative national pricing dataset, and no calculator can manufacture one.
Who it is for. Anyone who wants to check our arithmetic or disagree with an assumption. If you think a multiplier is wrong, we would like to hear it.
The “do I need duct cleaning?” tool
What it does. Seven yes-or-no questions, built around the conditions the U.S. Environmental Protection Agency (EPA) identifies: substantial visible mold growth on hard duct surfaces or equipment, rodents or insects, and debris actually being released into rooms from supply registers. It also asks about unresolved moisture, recent construction, odors traceable to the equipment, and whether your real reason is simply that time has passed. Five outcomes are possible, including fixing a moisture problem first and not needing the service at all.
What it does not do. It does not diagnose mold, and nothing running in a browser can. EPA is clear that visual inspection alone cannot confirm mold and that laboratory analysis may be needed; confirmation costs roughly $50, far less than a cleaning bought on a technician’s say-so. It gives no medical advice and diagnoses no equipment fault.
Who it is for. Someone who got a phone call, a mailer, or a door knock and is unsure whether to take it seriously. Every outcome is also written out as ordinary text, so you can read the one that fits without using the interactive version.
Checklists
What they do. Printable lists for the three moments where being organized saves money: inspecting your own system, screening a company and its quote, and reviewing finished work. The screening list is built around scope, since the documented advertising problems in this industry are overwhelmingly about what a low price quietly excludes.
What they do not do. They are no substitute for an in-person inspection, and they will not make you competent to judge technical quality.
Who they are for. Anyone about to spend several hundred dollars on a service whose scope is defined entirely by the seller.
Why the logic is published
Every pricing rate and every decision outcome exists as readable text whether or not the interactive layer loads. That is partly accessibility and partly editorial: a tool whose logic is hidden cannot be checked, and a number you cannot check is a number you should not trust.
What to do next
- Air duct cleaning cost — the reasoning the calculator is built on, in full.
- Questions to ask a company — what to do with the number once you have it.
- Facts and figures — the sourced numbers behind every rate in the model.
Sources & references
- U.S. Environmental Protection AgencyShould You Have the Air Ducts in Your Home Cleaned?Page last updated February 19, 2026Source for the three conditions the decision tool is built around, and for the roughly $50 cost of laboratory mold confirmation.
- AngiHow Much Does Air Duct Cleaning Cost?Updated August 3, 2026One of the sources behind the per-vent and per-square-foot rates the calculator uses.
- FixrAir Duct Cleaning CostUpdated January 29, 2026Independent price origin used to cross-check the calculator's output range.
- Housecall ProDuct Cleaning PricesJanuary 30, 2026Contractor-side source for hourly labor and the multi-system tiers behind the calculator's second-system factor.