Air duct cleaning is a trade where trust is the product. Homeowners have seen the low-price ads that turn into a much larger bill once the crew is inside. A company that inspects first, shows what it finds, agrees scope and price before work starts, and sells on evidence rather than health promises stands out quickly, and earns the referrals and reviews this trade depends on.
How an air duct cleaning business makes money
Whole-home duct cleaning. The main ticket: supply and return runs, registers and grilles, and usually the air handler components in scope. Price and time depend heavily on vent count, number of systems and access.
Dryer vent cleaning. Short, repeatable jobs that solve a real fire and efficiency concern and give you a reason to return. Many companies pair it with every duct job.
Coil and blower cleaning. A natural add-on where the inspection shows buildup. If you don't do HVAC repair, partner with a local HVAC contractor rather than overreaching.
Post-construction and renovation work. Drywall dust and debris after remodels make a clear, visible case for cleaning. Builders, remodelers and restoration companies refer this work.
Commercial systems. Larger, scheduled projects for offices, schools and healthcare, often after hours and with more documentation.
Running the day
A typical crew does a few whole-home jobs a day, or more if mixed with dryer vents. Setup and teardown of negative-air equipment and containment takes real time, so job durations need to include it.
The phone call sets up the job. Ask why the customer wants cleaning, how many systems they have, roughly how many vents, and where the equipment sits. Then state your price method plainly.
On site, start with an inspection. A camera look inside a supply and return run, with photos, shows the customer what is there. If the ducts are clean, say so. That honesty costs one job and earns many referrals.
The industry standard most companies follow is NADCA's ACR standard, which emphasizes mechanical source removal (NADCA). Writing your process down against it helps train new techs and explain your scope to customers.
Pricing your work
- Know your crew rate. Wages and burden for each crew member, truck and equipment cost, overhead and profit, divided by billable crew hours. Use the labor rate calculator.
- Time the job honestly. Setup, inspection, cleaning per vent, air handler work and teardown. Track actual times for a month and use the averages.
- Choose a clear price structure. By system plus vent count, or by system with a vent allowance and a per-vent charge above it.
- List add-ons as options. Dryer vent, coil and blower cleaning, sanitizer where appropriate, and duct sealing. The customer picks before work starts.
- Check your margins. The markup and margin calculator converts markup to margin on materials and treatments.
The air duct cleaning estimate template shows scope-based options laid out clearly. In TradesWork, those options come from your price book and the customer signs before work starts, which keeps the invoice matching the quote.
Marketing that works for air duct cleaning
Honest offers. Advertise a real starting price and say what it includes. In a trade known for bait-and-switch ads, transparency is a selling point.
Before-and-after photos. Real photos from your jobs, on your website and Google Business Profile, show what you do better than claims.
Reviews. Ask every customer, and respond to every review. Customers in this trade read them closely.
Partners. HVAC contractors without duct cleaning crews, remodelers, restoration companies, real estate agents and property managers all see the need.
Dryer vent reminders. Past customers are the cheapest bookings. A reminder at the interval you recommend brings them back.
Building a reputation that lasts
In a trade with a mixed reputation, a few written policies set you apart, and they are easy to put on your website and in your booking script:
- Inspection before cleaning. No cleaning starts until the customer has seen inside the system.
- Price method stated up front. By system and vent count, with add-ons listed as options.
- No health promises. Recommend cleaning for the reasons EPA lists, not as a cure for allergies.
- Sanitizers only where appropriate. Show the customer the product label and the reason before applying anything.
- Photo proof. Before and after photos of the same runs on every job.
Policies like these reduce refunds and complaints, and they give your techs a clear script.
Choosing software
Look for:
- Estimates with options and signatures, so scope and price are agreed before work starts.
- Photo recaps customers can see from one link.
- Equipment records to note the HVAC system, filter size and findings for next time.
- Fast call handling with missed-call text back, because many calls come from ads.
- On-site payment and review requests, with alerts for unhappy customers.
Companies in this trade often use Housecall Pro, Jobber, Workiz or ServiceTitan. TradesWork fits the duct and dryer vent workflow today, including three-option estimates, photo recaps, equipment records and a duct size calculator in the tech app (there is a free web version too). It does not have a NADCA-format inspection report template or project reporting for large commercial jobs. The software buyer's guide has more.
