Top 10 Gas Furnace Repair in Manchester, NH
The best gas furnace repair services in Manchester, NH for 2026 include High Ground Service Pros - Plumbers Electricians & HVAC Technicians (4.9), Clear All Cooling & Heating (5), Brookside Heating & Cooling (4.9). All diagnose and repair gas furnaces same-day with upfront pricing.
High Ground Service Pros - Plumbers Electricians & HVAC Technicians
Done right plumbing heating cooling
LHR Plumbing, Heating & AC Repair
Sanford Temperature Control
A.J. LeBlanc Heating, A/C, Plumbing & Electrical
Clear All Cooling & Heating
GSMS Air•Heating•Plumbing
Heritage Home Service
Heritage Home Service
Bill Trombly Plumbing - Heating - Cooling - Electric
How We Ranked These Manchester 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 Manchester 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 Manchester?
Gas furnace repair in Manchester 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.