HVAC Company Website Statistics: What We Found Scanning Dallas

The numbers

What these numbers mean if you sell to HVAC companies

HVAC produces the widest gap in our study between having a website and doing anything with it. Only 7 percent have no site, which puts the vertical alongside med spas and veterinary clinics at the digitally mature end. Yet 30 percent of those sites have no analytics installed, one of the highest rates we measured, and 28 percent are running an advertising pixel.

Those three numbers together describe a specific and common business: an HVAC company that built a real website, is actively paying for advertising, and has no instrumentation to tell it whether any of that produced a call. It is the clearest measurement-gap vertical in our data, and unlike auto repair the owner has already accepted the premise that online acquisition matters. You are not arguing for the category, only for visibility into it.

HVAC also has the strongest seasonal structure of any vertical here, which changes how a list should be worked rather than how it should be built. Demand spikes with weather, and a contractor's willingness to talk about acquisition is inversely related to how busy they are. The same list produces very different results depending on when it is worked, and that is a scheduling decision rather than a data one.

At 17 percent naming a decision-maker, HVAC sits with the trades rather than with the practice-based verticals. Expect general inboxes. The compensating factor is that HVAC companies are large enough to have office staff who route messages properly, which is not true everywhere in the trades.

The 20 percent publishing an llms.txt file is exactly the study average, so there is no particular AI-visibility story here in either direction. This is a vertical where the measurement gap is the pitch and everything else is context.

How this was measured

We searched Google Maps for HVAC companies in Dallas, took every matching business rather than a sample of the well-known ones, and then fetched each business's own website and read what was actually there: whether a site exists and loads, what platform it runs, whether analytics and advertising pixels are present, whether an llms.txt file is published, and whether any person is named as a decision-maker.

Businesses with no website were counted rather than dropped. That choice is why the "no website" figure exists at all: most datasets in this space silently exclude them, which makes every other percentage in those datasets flattering and wrong. The wider study covers 5,443 businesses, 4,524 of which had a website.

Nothing here is a survey, a projection, or an industry estimate. If we did not measure it, it is not on this page. The full cross-industry table is on the research index, and every field we collect is defined in the public data dictionary.

How fast does this data go stale?

A snapshot is only half the picture, so we measured the other half separately. We re-checked 4,527 business websites a median of 106 days after first observing them: 2.1 percent no longer loaded at all, and 1.9 percent of the sites we could read on both passes had switched a core platform such as a CMS, booking system or CRM. In a separate study we SMTP-verified 2,482 business emails scraped from company websites and found 14.2 percent of the decisively checkable addresses were dead.

Applied here: a list of HVAC companies built one quarter ago is not the list you think you have. Full methodology in the website churn study and the email decay study.

Other industries in this study

• Dentist website statistics
• Auto Repair Shop website statistics
• Med Spa website statistics
• Roofing Contractor website statistics
• Veterinary Clinic website statistics

The full cross-industry comparison table, including six industries without their own page yet, is on the research index.