The footprint in one paragraph
National AC Solutions maintains active contractor coverage in every U.S. state and the District of Columbia. Our current network, as of the most recent quarterly audit, includes more than 5,000 vetted residential HVAC contractors serving more than 7,295 cities and incorporated places. Coverage is denser in metropolitan statistical areas, thinner in rural counties, and consistently non-zero across all 50 states.
The hot markets
Three states account for a disproportionate share of our matching volume: Texas, California, and Florida. The reasons are unsurprising — large populations, long cooling seasons, aging housing stock, and (in Texas and Florida especially) a heavy reliance on electric-driven central air. Contractor density in these markets is high enough that we routinely have five or more eligible pros within a 20-mile radius of a given ZIP, which translates to faster response times and higher close rates.
- Texas. Largest single-state contractor roster. Dallas-Fort Worth, Houston, Austin, and San Antonio metros are all over-indexed on volume; rural West Texas is served but at thinner density.
- California. Heavy concentration in Greater Los Angeles, the Bay Area, and San Diego; the Central Valley and Inland Empire are well staffed; coverage thins in the Sierra foothills and the far northern coast.
- Florida. Dense across the full peninsula. Miami-Dade, Tampa Bay, Orlando, and Jacksonville are our largest volume contributors. The Florida Keys are served but on a longer response window.
Emerging markets
Three markets have grown the fastest in our network between 2024 and 2026, for three different reasons:
- Massachusetts. The shift from oil heat to cold-climate heat pumps, accelerated by state and utility rebates, has created demand for heat-pump-competent contractors. Our MA roster has roughly doubled since 2024.
- New York. A combination of Con Edison / National Grid heat-pump rebates and the state’s building-electrification push has driven installer demand upstate as well as in the NYC metro.
- Washington. The 2023-2024 record summer heat events pushed central-AC adoption in historically AC-optional markets like the Seattle metro. Our WA roster has grown with that demand.
The harder-to-staff markets
We are transparent about where coverage is thinner. The hardest markets for us to build density in are:
- Alaska and Hawaii. Small licensed-contractor populations and specialized equipment needs (Alaska’s cold-climate heat-pump work, Hawaii’s salt-air corrosion considerations) make roster growth slower.
- North Dakota, South Dakota, parts of Montana and Wyoming. Low population density and long drive times mean fewer contractors willing to accept matches outside their immediate service radius. We match where we can and decline cleanly where we cannot.
- Rural Appalachia and the Mississippi Delta. Coverage exists but response times are longer than the national median. We note this at the intake stage so the homeowner can make an informed choice.
Why national matching works better than single-market lead-gen
A common objection to national HVAC platforms is that HVAC is a local trade and a national operator cannot possibly know the Houston market the way a Houston operator does. The objection is reasonable and partly correct — but it misses the load-bearing point, which is not about market knowledge. It is about verification overhead.
Running license, EPA 608, and insurance verification at ACCA-adjacent standards is expensive on a per-contractor basis. A single-market lead-gen operation in, say, Phoenix, has a fixed verification cost spread across a few hundred contractors. A national operation spreads the same infrastructure (state API integrations, compliance reviewers, the scorecard pipeline) across five thousand contractors. The unit economics of doing the vetting well only close at national scale.
Separately, the matching algorithm benefits from a larger pool. A Phoenix-only operator has to route to whoever is available in Phoenix. A national operator with 5,000 pros can be pickier — it can route to the highest-scoring Phoenix contractor who is available in the relevant 20-mile radius at the specific hour the homeowner called. The homeowner does not experience any of this; they just experience a contractor who shows up on time and does the work. But the aggregate effect on response time and close rate is measurable.
Being national is not a virtue by itself. It is a precondition for affording the vetting process that is actually the product.
State pages
We publish a page for every U.S. state, with state-specific licensing notes, typical equipment considerations for the climate zone, and the list of cities we currently cover in that state. State pages also link to our standards reference from the U.S. Environmental Protection Agency and the Air Conditioning Contractors of America, which we rely on in our vetting process.
City-level coverage is best checked directly with the matching line, since our roster shifts as contractors are onboarded, re-verified, or removed.
What we will not claim
- We will not claim that every ZIP code in the U.S. has a contractor within 30 minutes. That is not true. Some rural markets have a 90-minute-plus dispatch radius, and we will tell you at intake.
- We will not claim to be the largest HVAC referral network. We do not publish competitor counts and we do not have the data to back a superlative.
- We will not claim same-day service in every market. Same-day is common in dense metros and less common in rural ones. It is not a guarantee we are willing to print.