HVAC marketing agency: what they charge, and a different way to pay

Most HVAC marketing agencies sell a bundle: a website, management of your Google Business Profile, a Google Ads account, maybe some social posting, and a monthly report showing clicks and impressions. The retainer is billed on the first of the month whether that month brought you three service calls or thirty. The agency's income does not move with your bookings, so its incentive is to keep the account, not to chase your close rate.

Some agencies also run pay per lead programs, where instead of (or alongside) the retainer you are billed a set price for every inquiry delivered, whether it turns into a job or not. That shifts some risk off the retainer model but keeps it on your side of the ledger: a wrong number, a renter who cannot approve work, or a homeowner calling five companies at once all count as billable leads.

A smaller number of agencies, PayOnJobs included, work on revenue share: no retainer, no fee per lead, and a percentage taken only when a customer has paid for a job that came through the tracked number. That flips the incentive so the agency only gets paid when your business does.

A $2,800 a month retainer costs $33,600 a year before a single ad dollar is spent, since ad spend is usually billed separately on top. If that agency books you 40 jobs in a slow year, you paid $840 in marketing fees per job regardless of ticket size. If it books 120 jobs, the fee per job drops to $280. The retainer does not adjust either way; the risk that the number of jobs will be low sits entirely with you.

Advertisers pay roughly $40 to $164 for a single click on HVAC marketing and lead searches on Google, depending on how specific the search is (DataForSEO, September 2026), which is a rough proxy for how much competitors are willing to spend to be seen for the same terms. A shared HVAC lead typically runs $25 to $200; at a 13 to 20 percent close rate (Hook Agency's 2026 lead-services analysis), a $60 shared lead costs roughly $300 to $460 per booked job once you count the leads that went nowhere.

Under a 17 percent revenue share, a $600 repair costs $102 in fees and a $9,000 system replacement costs $1,530, but both numbers only exist if the job actually happened and got paid. There is no fee on the calls that did not book. On small tickets this beats both retainer and pay per lead math easily; on very large tickets closed at a high rate, run your own numbers, because a flat per-lead or per-click model can occasionally come out cheaper. That tradeoff is covered honestly further down.

HVAC demand is not flat across the year. Cooling season drives a surge of AC repair and replacement calls, heating season drives a separate surge for furnace and boiler work, and the shoulder months in between are quieter for both. A retainer agency bills you the same fee in the slow months as in the surge months, which means you are paying full price for a marketing effort that has less demand to work with.

A revenue share does the opposite: in the slow months the fee shrinks with the job volume, and in the surge months, which is exactly when an unanswered phone costs you the most, the agency has every reason to make sure every call gets picked up, because that is also when it earns the most. The incentive lines up with the calendar instead of fighting it.

This also affects your ad budget planning. A $1,500 a month minimum ad spend goes further in a surge month with high buyer intent and shorter, further in a slow month with less competition for clicks. Either way, the spend is yours and it is not marked up, whichever agency you choose to run it.

Invoca's analysis of 60 million calls found that 27 percent of inbound home services calls go unanswered. For HVAC that is expensive in a specific way: Angi's cost guides and ServiceTitan's benchmarks put a missed emergency HVAC call at $500 to $900 in lost revenue, because the caller with no AC in August or no heat in January does not wait on hold, they call the next name on the list.

A traditional retainer agency has no stake in that leak. It gets paid the same fee whether your office picked up the phone or not, because answering the phone was never part of what it sold you. That is the gap PayOnJobs is built to close: the 24/7 AI receptionist answers every call to your tracked number, day or night, weekend included, and either books the job on your calendar or gets the details to you, before the caller has a chance to call a competitor.

There is no setup fee, no monthly fee, and no fee per lead. We build the website, manage your Google Business Profile, run your Google Ads account, answer the phone around the clock, follow up on open estimates, and send the payment link. We take 17 percent of revenue on jobs that came through the tracked number and that the customer paid for; the split runs automatically, 83 percent to you and 17 percent to us, at the moment of payment.

You fund your own Google ad spend directly, no markup, at a $1,500 a month minimum, because that cost is not contingent on results and we say so up front. We sign one HVAC partner per 25-mile radius, the initial term is 12 months, and after that either side can leave with 30 days notice. You own the domain, the website, the customer list, the Google Business Profile, and the reviews the whole time, and if you leave, they stay yours.

A retainer can be the cheaper option if your call volume is already high and steady year round and you have an office staff that never misses a call. In that case you are effectively already solving the missed-call problem yourself, and a flat fee may land lower per job than 17 percent, especially on large system-replacement tickets closed at a high rate. Run your own numbers on a few recent months before deciding.

PayOnJobs is also not a fit if you cannot fund the $1,500 a month minimum ad spend, if you need something running this week (the build takes about 14 days), if you are not willing to hand call-answering to an AI receptionist, or if another HVAC contractor already holds your 25-mile area. We are a new company and do not yet publish partner results; the contract terms are all in writing so you can judge us on those.