The free HVAC ad: a before/after video that booked work

What does a before/after HVAC ad actually look like?

Picture a fifteen-year-old furnace that quit in January. The tech pulls it, swaps in a new unit and before he leaves he shoots thirty seconds on his phone. The rusted old unit, then the clean new install, then the homeowner saying the house is warm again.

That clip costs nothing to make. No camera crew. No ad spend, no agency brief. Just proof of a job done well, filmed on the spot while the work is still fresh.

Posted to the company's own social pages, that clip does a job no postcard or paid ad does. It shows a stranger exactly what the work looks like before they call. It's advertising in the plainest sense, just not an ad.

Google Maps brought in nearly as many leads as organic and paid search combined

What are some good advertising ideas for HVAC companies?

plumberseo.net lays out a structure worth stealing even if you never hire an agency: drive leads, convert the ones you get, then measure what's working. Under 'drive leads' sits Google Business Profile work, paid search, local service ads and social video, in that order.

Cardinal Heating, Cooling, Plumbing & Electric is one example from that same page. In a February 2026 interview, its marketing manager described increasing the company's Google Ads budget roughly 10 to 15 percent per month once the returns justified it, watching cost per lead and ROI before moving any money.

That's the order that works. Build the organic and review base first, then scale paid spend once you can see it's paying for itself.

Where do HVAC leads actually come from?

In the case study plumberseo.net documents, a home services company's monthly leads rose from 285 to 468 over a tracked period. Of those 468 leads, 208 came from Google Maps, 141 from organic search, and 119 from paid search.

The biggest single source wasn't the ad budget. It was the free map listing, built on reviews and a complete Google Business Profile. Cost per lead over the same stretch fell from $36.74 to $20.48.

Any HVAC company running ads while ignoring its Maps listing and review count is paying to compete with a channel it's leaving half-built for free.

Can you provide some examples of HVAC slogans?

A slogan only works if it matches what you can actually show. If you run same-day service, say that plainly: 'Same day, every day.' If your crew is licensed and insured and you want that to matter, say 'Licensed, insured, on time.'

The strongest line a small HVAC company has isn't a slogan at all. It's a customer saying, on camera, that the crew showed up and fixed it right. That carries more weight than any tagline a copywriter can hand you.

Is a video ad worth it if you're not paying for reach?

Yes, based on where the leads in the plumberseo.net case study actually came from. Paid search brought in 119 of 468 leads. Google Maps, fed by reviews and visible proof of work, brought in 208, nearly double.

A before/after video doesn't need a media budget to be seen. It needs to exist, get posted, and get attached to a business profile that's already building trust through reviews. The video is the proof. The listing is where that proof gets found.

What this means for a social

For an HVAC owner, this points to a short list of things worth doing before any ad budget goes up. Film the before and after on every job that has one, it costs nothing and takes thirty seconds. Keep review volume climbing, since the case study above shows the map listing can outpull paid search on its own.

Only scale paid spend, the way Cardinal did, once you can see the cost per lead and know it's working. WorkBrag is built around the first two of those. It texts the homeowner for a video and a Google review after the job, and turns what comes back into posts for the company's own social pages.

Methodology

Lead-source and cost-per-lead figures, including the 285-to-468 lead increase, the $36.74-to-$20.48 cost-per-lead drop, and the 208/141/119 lead-source breakdown, come from a case study published by plumberseo.net.

The Cardinal Heating, Cooling, Plumbing & Electric detail on Google Ads budget increases comes from a February 2026 interview published on the same page.

Frequently asked questions

Does a before/after video count as HVAC advertising?

Yes. It's proof of finished work posted where a homeowner can see it before they call, which is what advertising is meant to do, it just doesn't cost anything to produce.

How much does HVAC advertising cost per lead?

It varies by channel and by how built-out your review base already is. In one documented case, cost per lead fell from $36.74 to $20.48 as a company's Google Maps presence strengthened, according to plumberseo.net.

Can I use a customer's video without asking first?

No. A customer's video or photo should only be used with their written say-so, both to be fair to them and to stay inside how apps and the FTC expect testimonials to work.

Sources

• plumberseo.net, HVAC Marketing Services for Contractors