Top 10 Gas Furnace Repair in Houston, TX
The best gas furnace repair services in Houston, TX for 2026 include Air Tech of Houston AC & Plumbing (4.9), Mission Air Conditioning & Plumbing (4.8), All Star A/C, Plumbing & Electrical (4.9). All diagnose and repair gas furnaces same-day with upfront pricing.
Air Tech of Houston AC & Plumbing
Mission Air Conditioning & Plumbing
Village Plumbing, Air & Electric
Nick's Plumbing & Air Conditioning
One Hour Air Conditioning & Heating® of Houston
All Star A/C, Plumbing & Electrical
Mr. Reliable Heating & Air
Luke's Plumbing & Air Conditioning
A1 Plus Electrical, Plumbing and Air Conditioning Repair
Abacus Plumbing, Air Conditioning, & Electrical
How We Ranked These Houston Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the Houston market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How much does gas furnace repair cost in Houston?
Gas furnace repair in Houston costs $100-$400 for common issues (ignitor, thermocouple, blower motor). Heat exchanger replacement costs $500-$1,500. Diagnostic fee is $75-$150, usually applied to repair.
Why is my gas furnace not heating?
Common causes: dirty filter restricting airflow, faulty ignitor or pilot light, bad thermostat, tripped safety switch, or gas supply issue. Check the filter and thermostat first — these fix 30% of no-heat calls.
Is a cracked heat exchanger dangerous?
Yes — a cracked heat exchanger can leak carbon monoxide into your home. If diagnosed, shut off the furnace immediately. Replacement costs $500-$1,500 but if the furnace is 15+ years old, full replacement is usually more cost-effective.