Google Ads copy for HVAC companies lives and dies by the season and the weather. The same ad that prints money during a July heat wave is dead weight in October. If you're writing one set of ads and leaving it up year-round, you're paying full price and getting half the calls.
Write for the weather, not the calendar
When it's 98 degrees and the AC quits, the search is "AC not cooling" and the buyer has zero patience. When it's 20 degrees and the furnace won't light, it's "no heat" and it's an emergency. Your ad needs to name the exact discomfort:
- "AC Out? Same-Day Repair Today"
- "No Heat? We're On the Way"
- "Emergency AC Repair — Answering Now"
Set these to run in the right season and pause the wrong one. A "furnace repair" ad shouldn't spend a dollar in July.
Separate repair from replacement
An AC repair is a $150–$600 job. A full system replacement is $6,000–$12,000. These buyers behave nothing alike. The repair searcher wants speed. The replacement shopper is getting three quotes and financing it. Give them different ad groups and different landing pages entirely.
For replacement, headlines that work: "New AC From $89/Month," "Free In-Home Estimate," "Trane & Carrier Dealer." Financing is the hook — most people don't have $9,000 sitting around.
Headlines that convert HVAC searches
- "Same-Day AC & Heating Repair"
- "$59 Diagnostic — Waived With Repair"
- "Licensed HVAC Techs, 24/7"
- "New System From $89/Mo — 0% Financing"
- "Free Replacement Estimate"
The diagnostic-fee line does double duty: it sets an honest expectation and it filters out people expecting free house calls.
Descriptions that close the gap
"Licensed, background-checked techs. Upfront flat-rate pricing before we start. Same-day service, financing on new systems. Call now — we answer live." Every phrase kills a specific worry: trust, price surprise, speed, budget.
Extensions are non-negotiable in HVAC
- Call extension — most emergency HVAC leads are taps, not form fills.
- Sitelinks — AC Repair, Heating Repair, New Systems, Maintenance Plans.
- Promotion extension — seasonal tune-up specials ($89 AC check).
- Callouts — "24/7," "Financing," "Free Estimates," "Licensed."
Negatives and budget control
HVAC clicks are pricey — $8 to $35 depending on the market. Protect the budget:
- Add "parts," "manual," "reset," "DIY," and "how to" as negatives — those people aren't calling anyone.
- Block "jobs" and "HVAC school" — job seekers, not customers.
- Use a dayparting schedule if you don't answer 24/7. Don't pay for 3am clicks that ring a dead phone.
Let the season retune your copy
Twice a year, swap your primary ads. Spring: lead with AC tune-ups and "beat the summer rush." Fall: lead with heating checks and "before the first cold snap." This planned-maintenance framing catches people while they're calm and cheap to serve, instead of only fighting for the expensive emergency clicks when everyone's bidding.
The HVAC companies that win on Google aren't running one clever ad. They're running the right ad for the weather outside, splitting the $200 repair from the $9,000 install, and putting financing where the replacement shoppers can see it. Set the seasons up once and let the phone ring.