Google Ads budget for HVAC companies: is $500 a month enough?

A Google Ads budget for HVAC companies has no fixed right number, but $500 a month is enough to start if you keep it to one job type, such as AC repair, in the area closest to your shop. It won’t cover repairs, installs and servicing across a whole metro, because $500 buys only so many clicks and every job type you add splits them further.

The question comes up often. In one r/PPC thread with 60+ comments, the owner of a small heating and renovation company asked whether starting Google Ads on a small budget was realistic, and the top reply warned that on $500 a month he’d probably be disappointed. That’s likely if the money is spread thin. Below are the follow-up questions HVAC owners ask, with the sums and settings to work out your own budget. Example figures are labelled as examples. If you’d rather hand it over, this is what our Google Ads management for HVAC companies does.

Is $500 a month enough for Google Ads for a small HVAC company?

It’s enough for one service in a tight area when clicks cost under about $15, and too little for anything wider. Google budgets are set as an average daily budget, and for most campaigns the most you’ll be charged in a month is 30.4 times that figure. So $500 a month is an average daily budget of about $16.45.

What that buys depends on what a click costs for your searches in your city. Here’s the same $500 at three example click prices, with an example 10% of clicks turning into a call or form:

None of those click prices are quotes for your market. Get real ones from Keyword Planner before you commit (the steps are in the next section). If you want the general version of this sum, with profit per job and close rate, it’s in our post on whether Google Ads is worth it for a small business.

A tight budget also limits how you bid. With only a handful of conversions a month, automated bidding has little to learn from, which is why we covered manual CPC or target CPA for low-volume local businesses separately.

How do I work out the right Google Ads budget for HVAC work in my area?

Start from one job type and the clicks it takes to get enough enquiries to judge it, then price those clicks with Keyword Planner. Here’s the order we’d do it in:

1. Pick the job that pays best per hour of your techs’ time and that you can take on this month. For most small shops that’s either AC repair in summer, heating repair in winter, or system replacements.
2. Write down 10 to 20 searches people use for that job, in their words: “ac repair near me”, “air conditioner not cooling”, “furnace repair”, “boiler repair”, “aircon service”.
3. Open Keyword Planner from the Tools menu in Google Ads. It shows roughly how many searches each keyword gets a month, and its forecast shows the clicks and conversions you’re likely to get for a given spend. You need billing details in the account to use it.
4. Decide how many enquiries you need before you’ll judge the campaign. Ten is a sensible floor.
5. Monthly budget = enquiries you need ÷ your expected click-to-enquiry rate × cost per click. Daily budget = monthly budget ÷ 30.4.
6. If the answer is more than you want to spend, cut the area back to the suburbs or zip codes you reach fastest, or drop to a cheaper job type, and keep the budget that the sum gave you.

Expect individual days to swing. On a busy day Google can spend up to twice your average daily budget, but over the month it won’t charge more than 30.4 times it, according to the same average daily budget page.

Should an HVAC company spend more on Google Ads in summer and winter?

Yes, for the job types whose searches rise with the weather, and your own search data should tell you which those are. We pulled five years of Google Trends data (October 2021 to October 2026) for common repair searches and averaged the index by month. In Google Trends, 100 is the busiest week for that search in that country, so the numbers compare months for one term, not search volumes between terms.

The furnace row surprised us. Across the US as a whole, “furnace repair” searches barely move with the seasons, so don’t assume your heating searches spike in winter. Check your own terms for your state or region in Google Trends before you plan around a peak.

What we do with this in practice:

• Give each job type its own campaign, so AC repair, heating repair, installs and servicing each have a budget you can move on its own.
• Raise the AC campaign’s average daily budget as your area warms up and lower it as it cools. Google lets you set and edit the average daily budget at any time.
• Pause a campaign you don’t need in its off-season. A paused campaign stops showing and stops costing money, and you can turn it back on whenever you like.
• Keep servicing and maintenance running in the shoulder months. Those are planned jobs that help fill the calendar between peaks.

One setting to leave alone for this: seasonality adjustments. Google says they’re meant for short events of 1 to 7 days, may not work as well over more than 14 days, and only work with Smart Bidding strategies such as Target CPA.

Once a campaign has some history, Performance Planner can forecast what extra spend would bring in, with forecasts adjusted for seasonality. Among other conditions, it needs at least one conversion and some spend in the last 17 days, so it won’t help a brand new account.

Should a small HVAC company start with Local Services Ads or Google Search ads?

Where Local Services Ads run for HVAC in your area, they’re usually the easier place to start on a small budget, because you pay per lead instead of per click. HVAC (heating or air conditioning) is one of the listed Local Services Ads categories, and Google says you pay only for leads related to your business and the services you offer. Another r/PPC thread from an HVAC firm owner asked exactly this: Google Local Ads or lead gen?

The budget works differently. In Local Services Ads you set an average weekly budget, and your monthly maximum is that figure × 30.4 ÷ 7. To keep to $500 a month you’d set about $115 a week. Some weeks you’ll spend more than that and some less, but you won’t go over the monthly maximum.

A few Local Services Ads rules matter more on a small budget, all from Google’s page on how leads work:

• A missed call during your business hours counts as a lead if the caller stays on the line for more than 20 seconds. Someone has to answer the phone.
• Repeat calls or messages from the same number within 15 days of a charged lead aren’t charged again.
• Charged leads are reassessed for 30 days, and poor-quality, duplicate or invalid ones are credited automatically. Lead credits aren’t available to advertisers in EMEA, which includes the UK and Ireland.

Also check what Google suggests for your budget. With the recommended Maximize leads bidding, Google suggests a budget that supports at least about 10 leads a week, and results take about 2 weeks to settle. If that suggestion is far above $115 a week, your market is telling you $500 a month is light for Local Services Ads too. You can also run both: Local Services Ads for repair calls, and a Search campaign for installs, where you choose the keywords, the ad and the page.

What wastes a small HVAC Google Ads budget?

These five settings are where a small HVAC budget usually leaks, and each has a direct fix:

1. Ads running at 2am with nobody on the phone. Campaigns show ads all day by default. Set an ad schedule (Campaigns menu, Ad schedule, pencil icon, choose the campaign) to the hours someone can answer. It runs on your account’s time zone.
2. Repairs, installs and servicing in one campaign. The cheapest, busiest searches eat the budget before the install searches get a look in. Split them so each has its own budget.
3. Paying for “how to” and job searches. People looking for HVAC jobs, training, parts or DIY fixes won’t book a tech. Read the search terms report every week and add the bad ones as negative keywords.
4. Reaching people outside your area. Google’s location targeting recommends “Presence or interest” for most Search campaigns, which can include people who are only interested in your area. On a small local budget we usually choose “Presence” so ads reach people who are actually there.
5. No call tracking. If calls aren’t counted, you can’t see which job type books work. Google Ads can track calls from your ads, calls to a forwarding number on your website, and taps on your number on mobile.

When should I raise my HVAC Google Ads budget?

Raise it when a job type is booking work at a cost you’re happy with and Google says the campaign could get more. That second signal is the “Limited by budget” status, which Google describes as your average daily budget being lower than the recommended amount. Raise the budget on the campaign that’s earning it rather than across the account, and give it a couple of weeks before judging the change. If the budget is being spent but the phone isn’t ringing, read why Google Ads gets clicks but no calls before adding more.

If a campaign is limited by budget but isn’t booking jobs, more money will mostly buy more of the same. Fix the search terms, schedule and tracking first. If you already run an account and want a second opinion, our Google Ads management starts with a free audit of where the money goes.

FAQ

Is Google Ads worth it for HVAC companies?

It is when the profit on a job covers the cost of the clicks or leads it takes to win one, and someone answers the phone. Work out the click price you can afford, compare it with Keyword Planner’s figures for your area, and test one job type before you scale.

How much does Google Ads cost per month for an HVAC company?

You decide. Search campaigns charge per click up to a monthly maximum of 30.4 times your average daily budget, and Local Services Ads charge per lead up to your weekly budget × 30.4 ÷ 7. The useful question is how many enquiries that spend buys in your market. For a roofing example, see what a good roofing Google Ads cost per lead is.

Can I pause Google Ads in the off-season?

Yes. A paused campaign stops showing and costs nothing, and its settings and history are kept for when you turn it back on. You can pause just the seasonal repair campaign and keep servicing and maintenance ads running.

Do Google ads work for contractors?

They work for contractors whose customers search when they need the job done, which describes most HVAC repair work. They work less well for jobs people rarely search for, or when the cost per lead in your area is higher than the profit on the job.

Sources: 1. About average daily budgets (Google Ads Help). 2. Use Keyword Planner (Google Ads Help). 3. About seasonality adjustments (Google Ads Help). 4. About Performance Planner (Google Ads Help). 5. Enable, pause, or remove a campaign (Google Ads Help). 6. Getting started with Local Services Ads (Local Services Help). 7. How to edit your budget (Local Services Help). 8. How leads work (Local Services Help). 9. How bidding works for Local Services Ads (Local Services Help). 10. Create an ad schedule (Google Ads Help). 11. About the search terms report (Google Ads Help). 12. About negative keywords (Google Ads Help). 13. Target ads to geographic locations (Google Ads Help). 14. About phone call conversion tracking (Google Ads Help). 15. Fix “Limited by budget” (Google Ads Help). 16. Google Trends, United States, United Kingdom and Australia, October 2021 to October 2026, checked October 11, 2026.