HVAC is one of the few industries where Google Ads can be wildly profitable and completely wasted in the same year. Demand spikes in the first hot week and the first cold week, then falls away. If your budget is flat across twelve months, you underspend in the two weeks that matter and overspend in the eight where nobody is searching.
Get the seasonality right and the rest of the account is straightforward. Get it wrong and no amount of bidding work will save it.
What do Google Ads cost for an HVAC company?
Expect to pay above the all industry average, because emergency demand is competitive and every contractor in your city is bidding on the same week.
The all industry benchmarks from a sample of 13,474 US search campaigns were $5.42 per click, $66.69 per lead and an 8.18% conversion rate, reported by WordStream. Home services generally run above the average on cost per click and above it on conversion rate too, because the intent is high.
| Search type | Intent | What to do with it |
|---|---|---|
| AC repair near me, no heat, emergency | Highest. Buying today. | Bid hardest, call assets on, own the top spot |
| AC replacement, new furnace cost | High value, slower | Separate campaign, expect a longer close |
| Maintenance plan, tune up | Low ticket, good margin | Run off peak to keep techs busy |
| How to fix, DIY, troubleshooting | None. They are not hiring. | Negative keyword |
What this means for you: emergency terms and replacement terms are different businesses with different close times. Keep them apart so the cheap fast conversions do not eat the budget meant for the high ticket work.
Budget around the season, not the calendar month
This is the part specific to HVAC, and it is worth more than any bidding tweak.
Demand arrives in two waves, the first serious heat and the first serious cold. It does not arrive on the first of the month. When a heatwave hits, search volume for AC repair can multiply several times over within a day, and every competitor is in the auction at once.
What to do about it:
- Do not cap yourself during the spike. A campaign limited by budget in the first hot week is the most expensive mistake in this category. Those are the leads you spend the rest of the year wishing you had.
- Cut hard in the shoulder months. Move budget to maintenance plans and tune ups rather than switching everything off.
- Do not restart from zero. Pausing and relaunching pushes Smart Bidding back into learning right when you need it sharp. Lower the budget instead of pausing.
- Watch the weather, not the plan. The trigger is the forecast, not a date in a spreadsheet.
Our post on bidding strategies covers why big budget jumps reset learning, and what Google Ads cost covers the benchmarks.
Local Services Ads should usually run alongside Search
Home services is a core Local Services Ads category. Google lists home services among the eligible industries, and those ads sit above the normal search results with you paying per lead rather than per click.
For an emergency driven trade that is a meaningful difference. In the first hot week, paying per lead rather than per click removes the risk of paying for a hundred price shoppers.
The current detail worth knowing: Google has discontinued the Google Guarantee badge and its money back guarantee, replaced by a single Google Verified badge. Reimbursement claims closed on 7 December 2025. Plenty of agency pitches still describe the old badge. Our comparison of Local Services Ads and Google Ads covers running both.
HVAC is a phone business
Nobody fills in a form when their AC dies in August. They call. If your conversion tracking only counts form submissions, you are optimizing on the smaller and less urgent half of your leads.
Three things to get right:
- Calls tracked as conversions, with call assets and a tap to call button on mobile.
- A call length threshold so wrong numbers and hang ups do not count. Sixty seconds is a floor, not an answer.
- Booked jobs sent back into the account, so bidding learns the difference between a call and a job.
From 15 June 2026 Google moved offline conversion imports to the Data Manager API and blocked them in the Google Ads API, so if your field service software pushes completed jobs back through an older integration, check it still works. Our guide to conversion tracking covers the setup.
The negatives that matter in HVAC
The waste in this category is predictable, which makes it easy to block.
- DIY. How to fix, reset, troubleshoot, why is my AC, blowing warm air.
- Parts and units. Capacitor, filter, thermostat, and model numbers, unless you sell parts.
- Careers. HVAC technician salary, apprenticeship, certification, schools.
- Rental and landlord terms, if you only serve owner occupiers.
- Free. Free estimate shoppers are fine, free repair searchers are not.
A tight list here is worth more in HVAC than in most categories, because the DIY search volume is enormous. Our post on negative keywords covers building it.
How to choose an HVAC marketing agency
Five questions, and what a good answer sounds like:
- “How will you handle the first hot week?” Look for a plan that raises budget on a forecast, not on a date.
- “How will you track calls, and how will you know if they booked?” Call tracking plus job outcomes going back into the account.
- “Will you separate emergency from replacement?” If it is one campaign, the replacement budget will be eaten.
- “Are we running Local Services Ads?” For a US home services business the answer should be yes or a clear reason why not.
- “What do you do in the shoulder months?” A good answer talks about maintenance plans. A weak one says pause.
Our post on choosing a Google Ads agency covers contracts, and management pricing covers the fee models. A percentage of spend model is worth thinking about carefully in a seasonal trade, since it pays the agency most in the month you were going to win anyway.
Common questions
What should an HVAC company budget?
Not the same figure every month. Work out what a booked job is worth, decide how many you need, and load the budget toward the two demand peaks. A flat monthly budget in a seasonal trade is money left on the table twice a year.
Should I pause ads in spring and autumn?
Lower them rather than pausing. Every restart pushes Smart Bidding back into a learning phase, and you want it settled before the peak arrives, not during it.
Why is my cost per click so high in summer?
Because every competitor is bidding on the same week. That is normal and it is still usually the most profitable traffic you buy all year.
Do maintenance plans work as an ad offer?
They work well off peak. They keep technicians busy in the quiet months and they turn one job into a relationship, which lifts the value of every lead you already bought.
How long before I can judge it?
Ninety days in normal conditions, but judge a seasonal account across a full season rather than a calendar quarter. Our post on bidding strategies covers the conversion volume Smart Bidding needs first.
Where to go from here
Pull last summer’s data and find the week your cost per lead was lowest. Then check whether you were limited by budget that week. If you were, you have already found the most expensive thing in the account.
Our Google Ads management page explains how we handle seasonal trades, our case studies show the results, and you can get in touch if you want someone to look at your peak weeks before the next one arrives.
