Air Duct Cleaning Growth

Seasonality and the slow-season marketing plan for air duct cleaning companies

By Steven Von · 2026-09-22 · 5 min read

When duct and dryer vent cleaning demand peaks and dies, what to run in each window from allergy season to pre-furnace, and a month-by-month plan for the slow weeks.

Duct cleaning demand has a shape. It climbs in late March when the pollen count makes the news, dips through midsummer, climbs again in late September when the first cold night makes the house smell like burning dust, and falls off a cliff between Christmas and Valentine's Day. Dryer vent work is flatter, with a bump in December. Real estate closings and renovations fill in between.

Owners who market the same way in every month overspend in peak and starve in the trough. This guide maps the year and gives you a plan for the eight weeks when the phone is quiet.

The demand curve

Roughly, for a residential duct cleaner in a four-season market:

  • Late March to May: allergy season. The strongest residential window. Searches for "air duct cleaning" roughly double from February.
  • June to August: steady but softer. Moving season, new-home purchases and post-renovation jobs. Hot-climate markets stay busy with AC-related calls.
  • Mid-September to early November: pre-furnace. Second peak, driven by the first heating cycle of the year and "furnace smell" searches.
  • Late November to December: dryer vent season. Holiday laundry loads and winter fire-safety stories.
  • January to early March: the trough. Weather, post-holiday budgets, nothing prompting the thought.

Mild-climate markets have a flatter curve with a stronger spring and a weaker fall. Wildfire-prone regions get an unpredictable third peak in the week after a smoke event, which is worth a prebuilt campaign.

Peak season: catch demand, do not create it

In the two peaks, demand exists and the job is to be found first. Priorities:

  • Google Ads and Local Services Ads at full budget, with bids up 20% to 30%. See the Google Ads guide.
  • Profile posts weekly with a before-and-after from that week's jobs.
  • Saturday scheduling open. The homeowner is home and the competitor is not.
  • Review asks on every job; this is when your count grows fastest.

Do not run discounts in peak. Every job is full price. The only lever is capacity: if you are booking out more than a week, raise prices 5% to 10% for new calls and keep it there.

The trough: eight weeks, a plan for each

January and February are where most duct cleaners lose money, not because jobs are unprofitable but because the trucks sit. Here is a plan that keeps the crew busy without buying coupon customers.

Weeks 1 and 2: dryer vents and the customer list

Text every past customer from the last three years with a dryer vent offer at your regular price and a reason: "Winter is when lint fires peak. Dryer vent cleaning is $129, same as always. Reply with a day." Expect 3% to 6% to book. On a list of 800 past customers that is 25 to 50 jobs at low cost, with a share of them adding the whole-house package once you are there.

Weeks 3 and 4: property managers and realtors

Winter is when property managers plan turnovers and when realtors have the fewest showings and the most time. Call ten of each. Offer a per-unit price for multi-family turnovers and a pre-listing duct cleaning for realtors with a one-page flyer they can leave with sellers. Two property managers who send you 20 units a year each are worth more than a season of ads.

Weeks 5 and 6: HVAC partners

Every furnace company in your area sees dirty ducts weekly and most do not clean them. Visit five of them in person. Bring photos, your price sheet and a referral fee or a reciprocal arrangement. Ask to be the duct cleaner they name. HVAC referrals come with the homeowner's trust already attached and are the cheapest leads the trade has.

Weeks 7 and 8: build for spring

Film the Meta ads for allergy season now, while the crew has time. Write the spring profile posts. Build the Google Ads campaign with the allergy copy and schedule it to go live March 20. Update the website photos. Spring arrives fast; the companies that win it are ready in February. The Meta ads guide has the shot list.

Off-season offers that are not coupons

A price cut in January trains your market to wait for January. Instead, change the package, not the price:

  • A whole-house cleaning with a free dryer vent recheck in 12 months. Same price, more value, and a reason to come back.
  • A winter indoor-air bundle: ducts plus a filter upgrade plus register sanitizing, priced as the "best" package from your pricing guide.
  • A new-homeowner package for anyone who closed in the last 90 days, marketed through realtors and title companies.

None of these touch your base price. All of them give the homeowner a reason to do it now instead of in April.

Commercial work smooths the curve

Small commercial jobs, such as dental offices, daycares, restaurants and small office buildings, are not seasonal in the same way. They schedule around their own slow hours, which often means evenings and weekends in winter. A duct cleaner with four or five commercial accounts has a floor under January.

Getting them starts with the same HVAC partners and property managers, plus a one-page commercial services page on your website with a per-square-foot range and a photo of a commercial trunk line.

Track the year

Keep a simple sheet: jobs per week, average ticket, lead source. After one full year you will see your own curve, which is more useful than any industry average. Then set the ad budget by month to match it, raise prices in peak, and spend the trough on the list, the partners and the spring build.

The benchmark report shows that 31.6% of duct cleaners have not listed hours and 35.1% have no website. Most of your competitors are not planning their year. That is the opportunity.

Frequently asked

Should I lay off crew in winter? Most two-truck companies keep one crew busy with the plan above and give the second crew the commercial and evening work. Losing a trained tech costs more than two slow months.

Is it worth running ads in January at all? A small dryer vent campaign, yes. A whole-house campaign at full budget, no. The clicks cost the same and the calls are a third of spring.

When should I raise prices? Announce in February for a March date. The annual customer text then does double duty: a dryer vent offer and a reason to book the whole house before the increase.

Seasonal planning, the customer texts and the spring campaign build are all part of the free 14-day trial. Text or call (385) 486-5536.

Steven Von
Steven Von, Editor
Steven has spent the last several years running growth campaigns for local service businesses, air duct cleaning companies among them, and builds the benchmark datasets on this site from public Google listings. About the editor

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