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HVAC Companies in Houston, TX — 2026 Directory

Houston is one of the hardest HVAC markets in America: a nine-month cooling season, Gulf humidity that punishes equipment, and sudden winter freezes that stress heating systems built for mild weather. Every contractor below is TDLR-licensed and verified (see the badge on each card) — filter by what you need, call directly, or request free quotes. Ranking formula: how we rank.

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Houston HVAC companies on the map

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HVAC services in Houston

AC Repair in Houston

City-specific prices and top-rated companies.

24/7 Emergency AC Repair

Around-the-clock dispatch across the metro.

Air Duct Cleaning

Humidity makes this matter more in Houston.

Furnace Repair

Get it fixed before the next freeze, not during.

HVAC Repair (all systems)

Heat pumps, splits, packaged units.

Houston metro coverage

Listed companies serve the greater Houston area. Coverage notes on each card show the company’s core territory:

KatyCypressSpringSugar LandPearlandThe WoodlandsHumble / KingwoodBaytownPasadenaLeague CityConroeMissouri City

Frequently asked questions

How much do Houston HVAC companies charge?

A diagnostic visit runs $75–$150, most repairs land between $150 and $650, and full system replacement averages $6,000–$12,000 depending on size and efficiency. Houston labor rates sit close to the Texas average. See AC repair cost for the full breakdown.

Why does Houston humidity matter for HVAC?

Houston’s system has to dehumidify, not just cool. An oversized unit short-cycles and leaves the air clammy; a correctly sized one runs longer and pulls more moisture out. This is why Manual J load calculations matter here more than in drier Texas cities.

When is the best time to schedule HVAC work in Houston?

October through March. You will get faster appointments, more negotiating room, and off-season promotions. Emergency rates in July and August can run 20–40% higher.

Do Houston HVAC companies offer 24/7 service?

Several do — use the “24/7 emergency” filter above or see our emergency AC repair page. After-hours calls carry a $150–$400 service fee.

Are these companies licensed?

Every company listed holds an active TDLR air conditioning contractor license — a hard requirement for inclusion, re-verified on a schedule. Each card shows the license number, class and expiry with a link to the state registry, and the date we last checked it.

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