Key takeaways
- Pay for searches that describe a broken system or a replacement decision, and give repair, replacement and maintenance their own ad groups and pages.
- Start with phrase and exact match. Broad match finds car AC and appliance searches until booked calls teach it otherwise.
- Load a negative list before launch covering jobs and training, DIY and parts, vehicles and appliances, and services you do not run.
- Check search terms before the first heat and the first cold snap, when search volume and waste both jump.
The best Google Ads keywords for an HVAC company describe a system that has stopped working or a homeowner deciding on a replacement: "AC repair near me", "furnace not heating", "heat pump replacement". The words around them matter as much, because the same terms pull in car AC, refrigerator and job searches that never become a service call.
The keywords worth paying for
The keywords worth paying for name a problem or a purchase, not a topic. Group them by what the searcher needs, because each group needs different ad copy, a different landing page and a different budget.
| Keyword group | What the searcher types | Send them to | When it earns most |
|---|---|---|---|
| No cool, no heat | ac repair near me, ac blowing warm air, furnace not working, no heat, heat pump not heating | A repair page with the phone number up top and same-day availability | Heat waves and cold snaps |
| Emergency and after-hours | emergency ac repair, 24 hour furnace repair, hvac repair open now | The same repair page, run only during hours someone answers | Nights and weekends in peak season |
| Replacement | ac replacement, new furnace installation, heat pump installation, hvac financing | A replacement page with financing and an estimate request | Shoulder seasons and right after a peak |
| Maintenance | ac tune up, furnace tune up, hvac maintenance plan | A tune-up or membership page with a booking link | Spring and fall |
| Indoor air quality | whole house humidifier, air purifier installation, air duct cleaning | Only services you actually run, each with its own page | Winter dryness and allergy season |
| Your own name | your company name, your name plus reviews or phone | Your homepage or booking page | All year |
Repair keywords carry volume and urgency. Replacement keywords carry the ticket. Keep them in separate campaigns so a heat wave's repair traffic does not spend the money you meant for replacement estimates. The landing page guide for HVAC Google Ads covers what each page needs.
Building a keyword list that pays
- Pick high-intent terms Searches that name a service you sell
- Choose match types Phrase and exact for control
- Add negative keywords Block searches you never want to pay for
- Read the search terms What people actually typed
Then refine the list
Match types
Match types decide how far Google stretches your keyword, and in HVAC the stretch usually lands somewhere you do not want to pay for (Google's match type rules).
- Exact match on "furnace repair" can still show for close variants, but it stays near the meaning of a broken furnace.
- Phrase match on "ac repair" also reaches "ac repair cost" and "window ac repair". The first may be a buyer. The second rarely is.
- Broad match on "ac repair" can reach "car ac repair near me" and "fridge not cooling". It only behaves once Google is learning from booked calls you report back, and it still needs negatives around it.
Build the core of the account on exact and phrase. Test broad in its own campaign later, with a small budget and a close eye on the search terms report.
Negative keyword list
- Block job seekers. Add hvac jobs, technician, apprentice, hiring, school, training and certification. Job searches share your service words, so they slip into phrase and broad match easily.
- Block do-it-yourselfers. Add how to, diy, reset, recharge, capacitor, parts, manual and video. A homeowner looking up how to recharge their own AC is not booking a tech today.
- Block vehicles and appliances. Add car, auto, truck, rv, refrigerator, fridge, freezer, dryer and ice machine. Add window unit and portable ac unless you service them.
- Block shoppers for equipment alone. Add for sale, wholesale, supply, used and the names of big-box stores. These people want a unit, not an installer.
- Block free and assistance searches. Add free and the names of assistance programs. Leave rebate in play if your CSRs help customers with rebates.
- Block work you do not do. Commercial, rooftop, chiller, boiler, geothermal, ductless or duct cleaning go on the list if your crews do not run them.
- Add as a shared list. Apply it at account level so every new campaign starts protected (how negative keywords work).
Review cadence
Read the search terms report weekly for the first month, then on a calendar set by the weather.
- Weekly, first month. Add negatives and promote searches that booked calls to their own exact-match keywords.
- Before the first heat. Check repair and AC groups, and confirm ad schedules match the hours someone answers.
- During a heat wave or cold snap. Look every day or two. Volume jumps and so does waste, fast.
- Before the shoulder seasons. Shift weight toward replacement, tune-up and membership groups.
- Monthly the rest of the year. Compare each group's cost per booked call, using the method in the HVAC cost per lead guide.
Organic keywords are a separate job with a separate list. This page is only about the searches you pay for.
How VETS Growth Marketing helps
We build your keyword groups from your call recordings and the jobs in your field service software, load the negative list before launch, and review search terms on the weather calendar above, all inside an ad account in your name. Each change is part of a dated plan, and the report shows cost per booked call by keyword group. In a growth consultation, we read your current search terms report with you and mark the searches you pay for that never book.
Sources
- About keyword matching options, Google Ads Help
- About negative keywords, Google Ads Help