4.8% across the 104 HVAC contractor websites we inspected.

HVAC adoption is low. The free-inspection frame does not transfer cleanly, because an HVAC customer with no symptoms has no reason to book one, and an HVAC customer with symptoms is calling regardless. Maintenance plans occupy this slot in HVAC instead.

That puts HVAC below the combined figure of 8.7% across all 380 brands , by 3.9 percentage points. Here is the same measurement in the other two trades we inspected.

Trade	Free inspection positioning	Sites
HVAC (this page)	4.8%	104
Roofing	21.5%	130
Remodeling	0%	146

Why it costs you work

This is the cheapest risk reversal in the trades and the least used. A free inspection converts a stranger who is not sure they have a problem yet into somebody standing in their own driveway next to a person holding a ladder. And the per-trade spread on this one is the widest of any metric in the study, which means it is a positioning choice rather than a trade constraint.

Checking your own HVAC site

Search your own homepage for the word free. If it appears only in the footer or not at all, and you do in fact inspect for free, you are running an offer you never told anyone about.

Everything else we measured on HVAC sites

Measurement	HVAC
Sites people with disabilities cannot use	64.4%
Sites that are hard to use for the disabled	98.1%
How long sites take to load on a phone	6.24s
Quote form field count	29.9%
Multi-step forms	1%
Named customer testimonials	52.9%

What was measured: Share of brands surfacing a free-inspection positioning frame. (Single measurement.)
How we measured it: We read the pages looking for a free inspection, free estimate or free assessment offer put somewhere a visitor would see it.
The technical version, for anyone checking our work: free-inspection positioning frame in HTML body copy
Scope: all captured pages
Denominator: 104 HVAC brands.
Collection window: 2026-05-10 to 2026-05-16
Who ran it: Fervor Studio, first-party capture. Nobody paid to be included or excluded.

This measurement across every trade: Free inspection positioning. How the capture works: the methodology.

The full report behind the HVAC numbers: State of HVAC. Or see how individual HVAC brands scored on the HVAC leaderboard.