Short answer
When an HVAC shop hires slowly, it's usually because applicants sit and wait between steps. Text every applicant back the same day, screen them before you book an interview, do one interview and a ride-along, and get a written offer out by day 5.
Good techs don't wait long. The U.S. Bureau of Labor Statistics expects about 40,600 openings for HVAC mechanics and installers every year from 2025 to 2035.
If you run an HVAC shop, you've probably had this happen: a solid tech applies, you mean to call them back, and by the time you do they've taken a job down the road. The plan below closes those gaps.
Why do HVAC companies lose good technicians during hiring?
Usually it's the wait. A tech with a few years of experience and an EPA card doesn't have to sit around for a callback, and every quiet day gives another shop a chance to make the offer first.
The BLS data shows why. The BLS Occupational Outlook Handbook counts about 440,900 HVAC mechanic and installer jobs in 2025 and expects the field to grow 11% from 2025 to 2035, with about 40,600 openings a year. So the tech you want probably has other options, even if they didn't mention it.
Slow, quiet hiring pushes people out on its own, too. In a Robert Half survey of more than 2,500 U.S. workers (May 2023), 52% said poor communication and follow-up from the hiring manager would make them drop out. 40% said more than three rounds of interviews would do it, and 39% said a lengthy hiring process. That survey wasn't limited to HVAC techs. Still, the takeaway carries over to any trade where people have choices: answer fast, and don't make them jump through extra rounds.
How can an HVAC company hire faster? A 5-day plan
Give each step a deadline. If you do, you can get from job post to written offer in about 5 business days:
| Day | Step | The rule |
|---|---|---|
| Day 0 | Post the job | Pay range, schedule, on-call rotation, truck and tools, and required certifications are in the ad |
| Day 0 to 1 | Reply to every applicant | Same day, by text, with the next step and a link |
| Day 1 to 2 | Screen | Two knockout questions and a short assessment before anyone gets an interview |
| Day 2 to 4 | Interview and ride-along | One interview, then a half day on a service call with a lead tech |
| Day 5 | Offer | In writing, with pay, start date, tools and the training plan |
Day 0: Post the job with pay, schedule and certifications
Put the pay range and the on-call rotation right in the HVAC job ad. Yes, a few people will skip your ad because of it. Those are the techs who'd quit over weekend calls or your take-home truck rule anyway, and it's better they pass now than after two interviews.
Name the certifications too. Under the EPA Section 608 program, technicians who handle refrigerants need to be certified, and the BLS says that covers nearly all HVAC techs. Some states and cities also want an HVAC license, so check your local rules and say which one you need. Not sure what to pay? Start with the national median on the BLS page (May 2025 data), then click its "State & Area Data" tab to see what techs make near you.
Day 0 to 1: Reply the same day by text
Text HVAC applicants back the same day they apply. Think about where a tech is at 2 in the afternoon: in an attic, on a roof, under a house. They're not reading email, and they're not picking up a call from a number they don't know. They can answer a short text between jobs.
Keep that first text simple. Thank them, tell them what's next, and send the link to your screening questions. Better yet, set it to go out on its own when someone applies, so a Friday night applicant doesn't wait until Monday to hear from you.
"We have 5 qualified candidates with interviews next week. ... Texting worked well, we scheduled 4 of the 5 interviews through text."
Chad Brown, law firm, IdealTraits customerDay 1 to 2: Screen before you interview
Screen before you interview, so the hour you spend in a room goes to someone who can actually take the job. Two knockout questions handle most of it: "Do you hold EPA Section 608 certification, and which type?" and "Do you have a valid driver's license?" The BLS points out that HVAC techs may need a license to drive to job sites, and you probably need them in a van.
Once someone passes those, send a short validated personality assessment. You can add a one-way video interview with two or three questions if you want. A pre-hire assessment gives you a read on how they're likely to work, like whether they stick to a process and how they handle an upset homeowner. A one-way video interview lets you hear how they talk to customers before you book a time. The applicant spends a few minutes on each, and you spend nothing until you sit down to review.
Day 2 to 4: One interview and a ride-along
For HVAC techs, one interview plus a ride-along beats three rounds in the office. In the interview, skip "Where do you see yourself in five years?" and ask about real calls: "Tell me about the last no-cool call you couldn't fix on the first visit. What did you do?" and "Tell me about a homeowner who was angry when you showed up."
After that, send the candidate out with a lead tech for half a day. Your lead tech will know pretty fast whether this person can diagnose a system, respects the customer's home and works safely. If the ride-along includes real work, pay them for it, and check your state's rules on working interviews.
Day 5: Make the offer in writing
Send the HVAC job offer in writing within a day of the ride-along. Include the pay, start date, schedule, truck and tool policy, and how training works, and let them sign it on their phone. Waiting until next week to decide gives other shops time to call them first.
Want every HVAC applicant to get a text the same day, without typing each one? See how text recruiting works.
Where do HVAC companies find service technicians?
Most HVAC service techs come from trade schools, apprenticeships, referrals or a nearby trade. Which one you lean on depends on the time of year and how much teaching your lead techs can take on.
Start with trade schools. The BLS says most HVAC techs finish a postsecondary program that runs 6 months to 2 years, and the EPA refrigerant exam is usually part of it. Call the school near you before graduation. By the time students walk, the good ones already have offers.
Apprenticeships are slower. According to the BLS, they usually last several years and mix paid on-the-job training with classes. Apprenticeship.gov lists registered programs and explains how an employer can start one.
Don't skip referrals, either. Your best techs know other good techs, so ask them. A referral bonus that pays once the new hire makes it past the first few months gives them a reason to recommend people who'll stick.
You can also train people from nearby trades. Someone from appliance repair, building maintenance or an electrical helper job already knows tools, safety and how to act in a customer's house. They'll still need refrigerant certification and time with a lead tech.
Our rule of thumb: before your busy season, hire experienced, certified techs who can run calls alone. In the slower months, bring on trainees and apprentices while your lead techs have time to teach. We give similar advice in our guide to hiring pest control technicians, another field job where you need people fast but also have to train them.
How do you hire comfort advisors who can sell?
Hire HVAC comfort advisors for sales ability first and HVAC know-how second. A comfort advisor goes into homes to recommend and sell new systems, so on most days it's a sales job. You can teach someone SEER ratings. It's a lot harder to teach them to ask for the sale and shrug off a "no."
| What to check | Service technician | Comfort advisor |
|---|---|---|
| Knockout question | EPA Section 608 certification, driver's license | Comfortable with the pay plan you offer, driver's license |
| Assessment focus | Follows a process, calm under pressure, finishes the job | Drive, persuasion, bounces back after a "no" |
| Interview question | "Tell me about a call you couldn't fix on the first visit." | "Tell me about a sale you lost and what you did next." |
| Real-world test | Half-day ride-along on service calls | Sit in on an in-home sales visit, then walk you through the options they would offer |
Plenty of shops promote a strong service tech into the comfort advisor seat. Sometimes it works great, especially when the tech already enjoys talking with homeowners. But a great tech isn't always a great closer, so check for sales traits before you move them. Our post on sales personality assessments covers what to look for.
How IdealTraits helps
IdealTraits is an all-in-one hiring platform with AI that helps businesses hire for fit, not just experience. For an HVAC shop, it runs the whole 5-day plan from one place. You post to 100+ job boards, and every applicant gets a text automatically. They answer AI pre-qualifying questions, take a validated personality assessment and record a one-way video interview, while AI resume matching ranks who applied. When you're ready, you send an offer letter they can sign online. 18,000+ businesses have used IdealTraits to hire. If you'd like to see it with one of your own HVAC jobs, book a demo.
What to measure next month
Starting this month, write down two numbers for every HVAC hire: how many hours it took you to send the first reply, and how many days it took to get a written offer out. If the first reply takes more than a business day or the offer takes more than a week, find the step where people are waiting and fix that one. Then check both numbers again in 30 days.