HVAC slow season: ways to keep techs busy

Why the shoulder season needs a plan

HVAC demand has two peaks and two troughs. In the hottest and coldest weeks, BLS notes, HVAC technicians may be on call for emergencies and work overtime or irregular schedules^[3]. Between those peaks, in spring and fall, mild weather removes the urgency that fills the board. The work does not vanish; it changes from repairs customers must have to work customers would like to have. That kind of work has to be sold and scheduled ahead of time.

The market is there. Space heating and air conditioning made up 52% of US household energy consumption in 2020^[4], and 88% of US households use air conditioning^[5]. Homeowners care about comfort and bills; the slow season is when you have time to talk to them about both.

Ten ways to fill the slow weeks

Run the maintenance push like a campaign

In Angi's 2025 survey, regular maintenance was the top planned home project for homeowners at 32%, ahead of interior painting at 20%^[1]. Customers intend to do it; they need a date. Treat the push as a campaign with a start and end date, not a vague goal.

1. 01

   Pull the list

   Members due for a tune-up, past repair customers with no plan and customers whose systems are more than ten years old.

2. 02

   Block the schedule

   Reserve maintenance blocks for each tech, grouped by area, so you can offer specific days instead of "sometime next week".

3. 03

   Reach out in waves

   Email and mail first, then calls to those who did not book. Calls convert better than reminders alone for older customers.

4. 04

   Make booking easy

   Offer two or three time slots on the phone. Long lists of options slow people down.

5. 05

   Track the fill rate

   Check daily how many blocks are booked. If a week is under half full by the Friday before, add another wave of calls.

A simple phone script, with an example company name: "Hi, this is Dana from Northside Heating and Air. Your system is due for its spring check. We have openings in your neighborhood on Tuesday morning or Thursday afternoon. Would either work?"

Duct sealing, IAQ and installation quality

Slow-season projects work best when the benefit is credible. ENERGY STAR says nearly half the energy used in a home goes to heating and cooling, that sealing and insulating ducts can improve efficiency by as much as 20%, and that improper installation can reduce system efficiency by up to 30%^[2]. Those figures give your techs an honest way to talk about duct work and about why a replacement should be installed and commissioned carefully.

• Offer a duct inspection as part of every spring and fall tune-up, with photos of disconnected or crushed runs.
• Quote duct sealing as a separate project with a clear scope and before-and-after measurements.
• For IAQ, start with the basics: filter type and fit, humidity and ventilation. Recommend products only when the assessment supports them.
• For replacements, commission the system and record the readings; it protects you if the customer later questions performance.

Commercial PM: the slow-season stabilizer

Commercial preventive maintenance is the most reliable shoulder-season filler because the visits are scheduled by contract. Small offices, restaurants, churches, medical offices and property managers all need filter changes, belt checks and coil cleaning on a schedule. Sell the contracts in winter, schedule the visits into spring and fall valleys and assign one tech who enjoys commercial work. Even a handful of small contracts can keep one tech busy through the slowest weeks.

To sell those contracts, list the small commercial buildings within your current service area and start with the ones you already serve for repairs. Offer a written PM checklist, a fixed visit schedule and priority response on breakdowns. Commercial customers care most about predictability and documentation, so leave a short report after every visit with readings, photos and anything that needs attention before the next season.

Follow up on old systems and open estimates

Every HVAC company has a list of systems it has repaired more than once and estimates the customer never signed. In peak season nobody has time to call them. In the shoulder season, those lists are the fastest route to booked replacement consultations, because the customer already knows you and already knows the system is tired.

1. Filter repair history for systems with two or more repairs in the past two years, or systems older than about 15 years.
2. Pull open estimates from the past 12 months, newest first.
3. Call, do not just email. Lead with the customer's situation, not a promotion.
4. Offer a no-pressure comfort consultation at a specific time, while your calendar is open.
5. Record the outcome of each call so the list stays clean for the next season.

A short script: "Last summer we repaired your air conditioner twice, and you asked us to check back before the next season. We have time next week to look at options with you, with no rush. Would Tuesday or Thursday suit you better?"

Measure whether the plan worked

Track a few numbers weekly through each shoulder season and compare them with the same weeks last year:

• Billable hours per tech per week, the clearest measure of whether the slow weeks were filled.
• Maintenance blocks booked versus available.
• Replacement consultations booked from follow-up lists.
• New maintenance agreements sold and renewed.
• Overtime hours in the following peak, which should fall if prep work moved into the slow weeks.

What not to do

• Do not start a discount war. Deep tune-up discounts attract price shoppers and train your members to wait for the deal.
• Do not lay off core techs to save a few weeks of payroll; rehiring and retraining before the peak costs more.
• Do not stop marketing completely. Leads generated in the slow season fill the first weeks of the peak.
• Do not let the phones slip. Shoulder-season callers are often replacement buyers doing research; a missed call goes to the next company on the list.

Use the quiet weeks for people

• Run training weeks: refrigerant updates, controls, heat pumps, customer communication. Book the trainer before the season, not when the board empties.
• Pair apprentices with senior techs on maintenance calls, where the pace allows teaching.
• Book planned vacation in the shoulder weeks so techs are rested before the peak.
• Do ride-alongs and call reviews with CSRs and techs to fix booking and sales habits.
• Hold a short peak-season planning meeting: trucks, parts, on-call rotation and overflow plans.

Some owners guarantee a minimum number of paid hours for core techs during slow weeks. It costs money in April and October, but it keeps the people you need in July and January from taking a job with a competitor.

A sample shoulder-season month

Example: a fictional eight-tech residential HVAC company plans its April as follows. Week one: truck and shop maintenance, plus a two-day heat pump training for all techs. Weeks two and three: maintenance push, with six techs on tune-ups grouped by neighborhood and one on commercial PM. Week four: replacement follow-up and unsold estimate calls by the comfort advisor, while two techs take planned vacation. By the end of the month every tech has averaged more than four billable visits a day, the trucks are ready for summer and the peak-season plan is written.

When the busy season arrives, the 60-day peak season checklist picks up where this plan ends. For the bigger picture of how demand moves through the year, see the 12-month seasonality calendar.