Houston HVAC Market in 2026 - Contractor's Local Landscape

Greater Houston is one of the largest HVAC markets in the US. Roughly 7.3 million residents in a nine-county metro, year-round cooling demand driven by the Gulf climate, and continued residential growth in Fort Bend, Brazoria, and Waller counties. For an HVAC service contractor, this is as good a service territory as exists in America.

2026 market drivers

• →Population growth: Fort Bend and Brazoria counties among the fastest-growing in the US
• →Housing age: huge installed base of 15–25 year-old R-410A and R-22 systems now hitting replacement age
• →Commercial expansion: new warehouses along I-10 and 99 corridor need commercial refrigeration
• →Regulation: AIM Act phase-down driving both service demand (existing systems) and new install demand (R-454B)
• →Weather volatility: 2021 February freeze drove a generational replacement cycle that's still working through the market

Competition

Houston HVAC contractor count is healthy - around 1,200–1,500 licensed residential contractors in the metro. Top 20 firms capture roughly 30% of revenue. Mid-sized 3–12 truck shops are the sweet spot for most independents.

Refrigerant supply landscape

Major distributors serving Houston include RGAS (local, 30+ years), Johnstone Supply, Carrier Enterprise, ACR Supply Partners, and Lennox Pros. Online retail-first players like Delta Refrigerants focus on contractor buying convenience and same-day local delivery from Richmond.