❄️ Official Rankings
10 Best HVAC in Nashua, NH (August 2026)
We compared 10 hvac serving Nashua and Hillsborough County, New Hampshire, and ranked the top providers by verified reviews, ratings, and local reputation — 7,748 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by Steve Martin Plumbing & Heating LLC. Updated for August 2026.
- HVAC ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 7,748
- Area code
- 603
Joyce Cooling & Heating Inc.
⭐ 4.9 · 5506 reviews
51 Lake St, Nashua, NH 03060
Lowe's Air Duct Cleaning
⭐ 5.0 · 107 reviews
127 Main St Unit 9, Nashua, NH 03060
Walley's Heating & Air Conditioning
⭐ 4.9 · 816 reviews
1 Tara Blvd #200, Nashua, NH 03062
Fagundes Plumbing Heating AC
⭐ 4.9 · 464 reviews
230 Amherst St Unit 103, Nashua, NH 03063
Ferris Plumbing, Heating & Air
⭐ 4.9 · 101 reviews
32 April Dr, Nashua, NH 03062
High Ground Service Pros - Plumbers Electricians & HVAC Technicians
⭐ 4.9 · 63 reviews
230 Amherst St Unit 213, Nashua, NH 03063
DiBacco Plumbing, Heating & Cooling
⭐ 4.9 · 59 reviews
171 Kinsley St, Nashua, NH 03060
Paul the Plumber - Nashua
⭐ 4.8 · 167 reviews
30 Temple St Ste 400-22, Nashua, NH 03060
HVAC in Nashua — FAQs
How do I choose the best HVAC company in Nashua, NH?+
Compare local companies on verified reviews, confirm they service your equipment — furnace, heat pump, or central air — and check they're licensed in New Hampshire. Top-rated options serving Nashua include Quick Heating and Cooling and Joyce Cooling & Heating Inc. Ask about emergency availability for a New Hampshire winter.
How much does HVAC service or installation cost in Nashua?+
Costs depend on whether you need a repair, a tune-up, or a full system replacement, plus your home's size, so Nashua contractors quote after an assessment. For installations especially, get two or three quotes from top-rated local companies to compare.
How often should I service my heating and cooling system in New Hampshire?+
Most HVAC professionals recommend an annual heating tune-up before winter and an air-conditioning check before summer. Regular maintenance keeps the system efficient and helps catch small problems before they become expensive failures in a cold snap.
Which HVAC companies are top-rated in Nashua, NH?+
By verified reviews, highly rated HVAC providers serving Nashua include Quick Heating and Cooling, Steve Martin Plumbing & Heating LLC, and Fagundes Plumbing Heating AC. Nashua is in Hillsborough County (area code 603).
HVAC listed here serve Nashua, Hillsborough County, and nearby ZIP codes including 03060, 03061, 03062, 03063, 03064.