The HVAC shoulder season plan: what to do in April and October
A month-by-month marketing calendar for heating and air, maintenance agreements that carry the slow months, and how to spend co-op dollars on the right weeks.
Every HVAC owner knows the shape of the year. July and January the phone will not stop and you are turning work away. April and October the board has gaps by Wednesday, the techs are reorganizing the warehouse, and payroll does not care that it is 72 degrees outside.
The shoulder season is not a weather problem. It is a planning problem, and the contractors who never have one solved it eight months earlier by building something that produces work when demand does not.
The mechanism: an agreement base
There is exactly one durable fix for the shoulder season, and it is a maintenance agreement base large enough to fill it.
The math is simple. Each agreement is two visits a year, one in spring and one in fall, scheduled by you. A tech running six tune-ups a day at $89 to $140 each with an agreement is billing $600 to $800 a day at good margin with zero acquisition cost. Four hundred agreements is 800 visits, which at six a day is 133 tech-days, which fills two full shoulder seasons for a two-truck shop.
The agreement base also does three things marketing cannot buy:
- It puts you in front of aging systems twice a year, so replacement conversations happen with you and not a competitor.
- It produces reviews at the easiest moment in the trade, as covered in the reviews guide.
- It makes revenue predictable, which changes how confidently you can spend on advertising in January.
Sell agreements during the busy months. That is the counterintuitive part. A homeowner who just paid $580 for an emergency repair in a heat wave is the most receptive agreement buyer you will meet, because they have just learned what a failure costs. Give the tech a script and a spiff and sell agreements in July, then harvest the work in October.
The calendar
January and February. Peak heating. Do not advertise for demand you already have. Instead: sell agreements on every no-heat call, collect reviews aggressively while the goodwill is fresh, and quote replacements on the failed furnaces. Push spring maintenance renewals to the existing base in late February. Set your annual price increase now.
March. The ramp-down begins. Start the spring tune-up campaign. Email and text your agreement base to book their spring visit. Run a small Google Ads maintenance campaign, six weeks, low budget. Now is when to make category or website changes, because you can absorb a ranking wobble.
April and May. The first shoulder. Fill it with the agreement base and tune-up promotions. This is the best window of the year for Meta ads because homeowners are not in market and you are creating demand. The offer is the $89 precision tune-up, deadline dated. Also the right time for duct sealing, indoor air quality and ductless work, all of which are discretionary and need selling rather than answering. See the Meta ads guide.
June through August. Peak cooling. Answer the phone. Raise the replacement budget, hold or cut the repair budget if you cannot service it, and check the seven-day forecast weekly. Sell agreements on every call. Collect reviews on every call. Do not start new marketing projects; you will not have the attention for them.
September. Second selling window for agreements, and the start of fall maintenance. Contact everyone who bought a tune-up in spring but did not join a plan. The line that works: "Your system is 14 years old and we found weak capacitor readings in May. Let's get the heating side checked before it gets cold."
October and November. The second shoulder, usually the deeper one. Fall tune-ups from the base, furnace replacement quotes on the systems you flagged, and the heaviest Meta spend of the year. This is also when to run replacement financing hardest, because a homeowner replacing in October installs in comfort rather than in crisis.
December. Half a month of work and a lot of dead days. Use it: audit the year's numbers, rebuild the website, plan next year's budget, and get your co-op claims filed before the program year closes.
Co-op dollars, timed properly
Most major manufacturers rebate around 50% of qualifying advertising spend against your equipment purchase volume, with an annual accrual cap and a claim deadline that usually falls at year end or shortly after.
Two mistakes contractors make. First, they forget to claim, and the accrual expires. Second, they spend co-op in July, when demand is free and the ads were unnecessary anyway.
Spend it in the shoulder months instead. Co-op-funded advertising in April and October costs you half as much for demand you actually need, and it is the same qualifying spend either way. Build the claim into a monthly routine: keep the invoice, a screenshot of the creative with the brand logo placed to spec, and the platform spend report. Fifteen minutes a month and the paperwork is never a scramble.
Check the co-op rules before you build the creative, not after. Logo placement, brand mention requirements and approved messaging vary by manufacturer, and a claim rejected for a missing logo is money you already spent.
Filling gaps with the work nobody markets
When the board still has holes, sell the discretionary work you can schedule at your convenience:
- Duct sealing and duct cleaning. Schedulable, decent margin, and an easy add-on to a tune-up visit where the tech already found leakage.
- Indoor air quality. Whole-home humidifiers in fall, air scrubbers and media filter upgrades in spring.
- Thermostat upgrades. Small ticket, quick, and it produces a review and a warm customer relationship.
- Commercial preventive maintenance. Restaurants, churches, small offices. Commercial work runs on a different calendar than residential and does not collapse in the shoulder months.
- Deferred replacement follow-up. Every homeowner who got a replacement quote this year and did not buy. Call them in October with the financing terms. A meaningful share of them have been sitting on it since July.
Do not lay off in the shoulder
The instinct in a slow April is to cut hours. The problem is that a good installer who lost two weeks of hours in April will not be there in July, and replacing him costs more than the payroll you saved. Use slow weeks for training, truck maintenance, warehouse work and ride-alongs, and build the agreement base so next April there is nothing to cut.
Frequently asked
Should I stop advertising during the busy season? Not stop, rebalance. Cut repair spend if you cannot service the calls and shift it to replacement, where the same heat wave is producing the most motivated buyers of the year.
What is a realistic agreement attach rate? A well-run shop converts 25% to 40% of service calls into agreements when techs ask every time. Under 10% means nobody is asking, not that customers do not want it.
How much should I spend in the slow months? Most contractors underspend. If you are at $3,000 a month in the shoulder and $3,000 in July, you have it backwards. Consider 60/40 the other way, weighted toward the months when demand has to be created, and fund the difference with co-op.
If you want the shoulder-season campaign and the renewal sequence built, both are included in the free 14-day trial. Text or call (385) 832-6175.