Rankings of "top HVAC marketing firms" can't answer this question for you. Your phone system can.
What does ROI actually mean when homeowners call instead of click?
Most HVAC revenue starts with a phone call, gets booked by a CSR, and closes in someone's kitchen or attic. That path breaks most marketing reports, because the ad platform sees a click or a call and stops there.
Real ROI follows the call all the way to the invoice:
- Lead: a call, form or message from a new customer.
- Booked job: the lead turned into an appointment on the board.
- Revenue: what that job, and any replacement or membership that came from it, actually billed.
Two agencies can both deliver 200 leads a month and produce completely different returns. SearchLight's analysis gives a clean example: two contractors paying the same $55 per lead ended up with a $180 cost per paying customer in one case and $440 in the other, because book rates and tickets differed (SearchLight, March 9, 2026). Same lead cost. Wildly different business.
How do the channels compare on real economics?
SearchLight tracked $6.72 million in Local Services Ads spend across 888 home service contractors in February 2026 and compared it with $14.9 million in Google Ads spend across 816 contractors in January 2026. The blended numbers:
| Channel | Cost per lead | Book rate | Cost per paying customer | Avg ticket |
|---|---|---|---|---|
| Local Services Ads | $53 | 43.9% | $233 | $1,826 |
| Google Ads, branded | $34 | 55.3% | $104 | $2,398 |
| Google Ads, non-branded | $149 | 37.6% | $804 | $2,516 |
| Google Ads, blended | $104 | 41.7% | $472 | $2,465 |
Two things jump out. Non-branded Google Ads, the searches where you're competing for people who don't know you yet, cost far more per paying customer than Local Services Ads. And branded search looks amazing because those people were already looking for you, which is exactly why agencies love to fold it into their results.
Organic search and the map pack aren't in that table because there's no per-lead fee to measure. They take months to build and then keep producing without a bill per call. A credible agency will show you how it splits budget between the fast channels and the ones that compound, and how that split changes as organic grows. Our comparison of HVAC Local Services Ads vs. organic SEO covers that trade-off in detail.
One timing note: Google started moving Local Services Ads into Google Ads as Performance Max campaigns with pay-per-lead goals in August 2026, beginning with home service categories including HVAC. Historical LSA performance reports don't carry over (Google Ads Help). If your agency hasn't exported your history, ask today.
Why is emergency repair lead generation its own problem?
Because the winner is often whoever is open and answers. Whitespark's 2026 survey added a new factor, whether a business is open at the time of the search, and experts immediately ranked it fifth for map pack rankings (Whitespark, November 6, 2025). Darren Shaw described watching businesses slide down the results in the hour before closing.
That cuts both ways. Listing 24/7 hours when nobody answers at night will cost you reviews and possibly your profile. Listing real 24/7 hours backed by a live answering service can be one of the highest-return moves an HVAC company makes in July and January. An agency that's serious about emergency calls will ask about your after-hours coverage before it touches your ads.
Emergency searchers also judge fast. BrightLocal found 31% of consumers will only use a business rated 4.5 stars or higher, up from 17% a year earlier (BrightLocal, February 11, 2026). In a no-cool call, nobody reads your About page.
What if you're comparing firms in a market like Houston?
Long cooling seasons and heavy competition make markets like Houston expensive places to guess. The same rules apply, with less room for error: ask for references from contractors in your metro, ask how the firm handles a summer where demand doubles and capacity doesn't, and insist on cost per booked job by channel. Our Houston HVAC marketing page explains how we approach that market.
What are the three numbers to demand every month?
- Cost per booked job, by channel. Total spend on the channel, plus the agency's fee share, divided by booked jobs from that channel.
- Booked revenue, by channel. From your field service software, not the agency's dashboard.
- Book rate. Booked jobs divided by leads. If this drops, the problem may be your phones, not the marketing, and a good agency will tell you that.
Everything else (impressions, rankings, clicks) is useful for diagnosis and useless as proof. We wrote more on why cost per booked job beats cost per click.
How do agencies make ROI look better than it is?
These are the common ones. None of them are illegal. All of them mislead.
- Counting existing customers. Your maintenance plan members calling to book a tune-up aren't new business from marketing.
- Folding in branded search. People who searched your company name were already coming.
- Counting every call. Wrong numbers, vendors and spam calls inflate lead counts.
- Using ticket value instead of booked revenue. Estimates aren't sales.
- Taking credit for the season. Calls rise in the first heat wave no matter who runs your ads. Compare against the same weeks last year.
What we've seen with a St. Louis HVAC company
STL Air Pros, a St. Louis HVAC company and LeadValets client, went from roughly two calls a month to more than 111 in about eight months. We share that number because it's real and it's ours, not because every company will see the same curve. Starting points, markets and capacity differ, and anyone promising you a specific multiple is guessing.
Your next steps
- Pull the last 90 days of new-customer calls and tag each one by source.
- Calculate your book rate and average ticket from your field service software.
- Separate branded from non-branded search in your Google Ads reports.
- Check whether your listed hours match when someone actually answers the phone.
- Export your Local Services Ads history before migration removes it.
Ask your current agency for cost per booked job by channel for the last 90 days. If they can't produce it within a week, you have your answer about ROI.
Frequently asked questions
What is a good ROI for HVAC marketing?
It depends on your margins and ticket size. SearchLight's February 2026 data showed HVAC Local Services Ads returning 9.55 times closed revenue on spend. Use your own gross margin to decide what cost per booked job you can afford, then judge every channel against it.
Are Local Services Ads or Google Ads better for HVAC companies?
In SearchLight's 2026 benchmarks, Local Services Ads produced paying customers at $233 each versus $472 for blended Google Ads, though Google Ads jobs had higher average tickets. Many HVAC companies run both and judge each by cost per booked job.
How long does it take SEO to pay off for an HVAC company?
Usually several months, depending on competition and your starting point. Our guide on how long SEO takes for plumbing and HVAC breaks down typical timelines and what affects them.
What should an HVAC marketing report include?
New-customer calls by source, booked jobs, booked revenue, book rate and cost per booked job by channel. Rankings and impressions belong in an appendix, not the headline.
Does it matter if an agency integrates with ServiceTitan?
If you run ServiceTitan or a similar platform, yes. Revenue tracking only works when campaign data follows the customer to the invoice. Ask the agency to show you reports pulled from your system, not theirs.
About the author
Jonathan Floyd is the Founder and President of LeadValets and the creator of the Search Authority Flywheel, the framework his team uses to build local visibility across Google Business Profile, Google Maps, and AI search.
He has spent more than three decades in sales and marketing, and his team at LeadValets reports to HVAC, plumbing and electrical clients on booked jobs rather than leads, which is the standard this article holds every agency to.
He will also tell you when local search isn't going to move your numbers. That's a shorter conversation than most agencies are willing to have.
Connect on LinkedIn | jfloyd@leadvalets.com | 314-561-7101 | leadvalets.com
Written with AI as the framework: written, edited, developed and fact-checked by Jonathan Floyd.