How an HVAC Company Fills the Shoulder Seasons

January and July take care of themselves. A cold snap or a heat wave fills the board whether you market or not. Then April arrives, the furnace calls stop, the AC calls have not started, and you are paying a crew to restock trucks.

The fix is to stop waiting for emergencies in those months and start booking planned work into them. The demand exists. It just has to be asked for, because nobody with a working furnace wakes up and calls you.

Why the shoulders go quiet

Most HVAC demand is triggered by something breaking. When the weather is mild, nothing breaks, so the inbound calls fall off.

What does not fall off is the planned work: tune-ups, maintenance plan visits, replacements people have been putting off, heat pump conversions, thermostats and air quality add-ons. All of it can happen in April or October. The homeowner just needs a reason and a reminder.

1. Book the tune-ups weeks before the season turns

Send the spring AC tune-up reminder in March and the fall furnace reminder in late August. By the time the first cold night arrives, your calendar should already be full of booked visits, and the emergency calls land on top.

Email and text to your past customer list do this best, because these people already trust you. Our guide to email marketing for a local business covers the basics of setting up a list you can actually send to.

2. Renew maintenance plans in the quiet weeks

A maintenance plan customer is booked twice a year, every year. Renewals are the easiest sale you will make, and the shoulder months are when you have the time to make them properly: a phone call, a reminder of what the plan covered, and an offer to book the next visit on the spot.

Every plan visit is also the best chance you get at the replacement conversation, which we cover in turning maintenance plan customers into replacement jobs.

3. Go back to the quotes that never closed

Every HVAC company has a folder of replacement quotes from last winter that never turned into a job. The furnace limped through. The owner decided to wait. Those people still have old equipment, and spring is a calmer time to decide than a February breakdown.

Call or email each one. Keep it short: you quoted them, the equipment is a year older, and you have install slots open in the next few weeks.

4. Contact customers whose equipment is getting old

If your software records the age of each customer's furnace and AC, you have a list worth more than any ad campaign. ENERGY STAR suggests having a professional look at a heat pump or air conditioner more than 10 years old, and a furnace or boiler more than 15 years old.

Those customers will need a replacement soon. Telling them early, before it fails, lets them plan and lets you schedule the install into a quiet week instead of an emergency one.

5. Use the rebates while they exist

Ontario's Save on Energy Home Renovation Savings Program lists rebates of up to $7,500 for a cold-climate air-source heat pump and up to $12,000 for a ground-source heat pump, with the amount based on the size of the unit (checked October 26, 2026). The heat pump has to be on Natural Resources Canada's qualified products list, and other terms apply.

Programs change, so check the current amounts before you advertise them. While they last, a rebate gives a homeowner with a working system a real reason to act this spring rather than next winter.

6. Point your ads at planned work

If you run Google search ads, shift the budget in the shoulders. Emergency repair searches drop when the weather is mild, while searches for replacement costs, heat pump installation and rebates carry on. Bid on those, and send each one to a page that answers that exact question.

For the trade-offs between search ads, Local Services Ads and the map pack, see Google Ads, Local Services Ads or Local Search.

An Ontario shoulder-season calendar

• Late February to March: spring tune-up reminders to past customers. Follow up on unsold winter replacement quotes.
• April to May: AC tune-ups and installs. Heat pump conversion campaigns. Ask every customer for a review while the crew has time.
• Late August: fall furnace tune-up reminders. Maintenance plan renewals.
• September to October: furnace tune-ups and planned replacements. Contact customers with furnaces past 15 years before the first cold night.
• Any quiet week: fix the Google Business Profile, add a service page, catch up on photos.

What to avoid

Discounting to fill the board. A spring sale trains customers to wait for the next one, and it eats the margin on work you would have sold anyway. A reminder and an open slot fill the calendar without moving the price.

Pausing all marketing when it gets quiet. The quiet months are exactly when planned work needs a push. Cutting spend in April pushes the slow spell into May.

Treating it as a one-off. The tune-up reminders and renewal calls work best as a routine that runs on the same dates every year.

Where we fit

Smoothing out the calendar is what Next Truck is built for. We run estimate follow-up by text, a review request after every job and tune-up reminders to past customers, all in your own accounts and the software your office already uses, and at day 90 we can launch a maintenance plan. See marketing for HVAC companies, or start with the free Estimate Sweep to see what gets booked at your own shop.

Common questions