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Browse the Top 57 HVAC Companies Serving New Hampshire

See what 57 HVAC companies serving New Hampshire, including Dover, Manchester and Hooksett, offer for scheduled maintenance, system installations and urgent repairs. Read customer feedback, explore business profiles and contact providers that match your HVAC requirements.
Auburn (2)
Barrington (2)
Bedford (2)
Belmont (1)
Brookline (1)
Deerfield (1)
Derry (2)
Dover (5)
Epsom (1)
Exeter (1)
Franklin (2)
Goffstown (1)
Grantham (1)
Greenland (1)
Henniker (1)
Hooksett (4)
Hudson (2)
Jaffrey (1)
Laconia (2)
Lancaster (1)
Lebanon (1)
Littleton (1)
Londonderry (1)
Madbury (1)
Manchester (5)
Marlborough (1)
Milford (2)
Nashua (1)
New Boston (1)
Portsmouth (1)
Rochester (3)
Rye (1)
Salem (1)
Tilton (2)
Warner (1)
Not rated yet
L R Hvac
Not rated yet
We have served New Hampshire communities with trusted HVAC solutions since 1992.
L R Hvac provides reliable heating, cooling, and HVAC services for New Hampshire homes and businesses since 1992. Expert installations, maintenance, and 24/7 emergency repairs.
Heating Systems Cooling Systems Ductless Heat Pumps
(603) 286-2291 Call Profile
Not rated yet
Hatfield Brothers Mechanical
Emergency
Not rated yet
We have over 20 years of experience in HVAC and plumbing services.
Trusted HVAC and plumbing services in Derry, NH. Over 20 years of experience. Licensed, insured. Free estimates, on-time appointments. Call 603-432-7001 for AC repair, furnace replacement, water heaters.
AC Repair Ductless Mini Splits Water Heaters
(603) 432-7001 Call Profile
Not rated yet
Quincy Hydronic Technology
Not rated yet
35 years of HVAC industry experience serving U.S. and Canadian distributors
QHT offers durable, energy-efficient boilers and radiators with nationwide shipping and expert support. Committed to sustainability and customer satisfaction since 1988.
Boilers Radiators Fan Convectors
(603) 334-6555 Call Profile
East Coast HVAC
40 Years
Emergency
Not rated yet
East Coast HVAC
40 Years
Emergency
Not rated yet
Family-owned since 1986 with deep local market knowledge
Trusted HVAC and electrical services in Seacoast NH and Southern ME. Family-owned since 1986. Diamond Elite Contractor for Mitsubishi Electric. 24/7 emergency service available.
HVAC Installation Boiler Repair Heat Pump Services
(603) 430-9414 Call Profile
Not rated yet
Cochecho Plumbing & Hydronic Heating
Not rated yet
We have served Seacoast homeowners since 1989.
Since 1989, we deliver honest, expert plumbing, boiler, steam and hydronic heating services across the Seacoast, ensuring reliable comfort, efficiency, and lasting peace of mind for New Hampshire homeowners.
System Evaluation & Repair Boiler & Water Heater Replacement Hydronic Heating & Radiant Systems
(603) 742-9425 Call Profile
Not rated yet
Milford Plumbing & Heating
32 Years
Not rated yet
We have over 30 years of family-owned experience in plumbing and heating.
Milford Plumbing & Heating offers expert plumbing and heating services in Milford, NH. Specializing in residential remodeling, hydronic heating, and new home installations since 1994.
Residential Remodeling Hydronic Heating Systems New Home Installations
(603) 672-1514 Call Profile
Hart Plumbing and Heating
37 Years
Emergency
Open 24/7
Not rated yet
Hart Plumbing and Heating
37 Years
Emergency
Open 24/7
Not rated yet
We offer 24/7 emergency response with average arrival time under 2 hours
Trusted 24/7 plumbing and HVAC services in Portsmouth, NH. Emergency repair, gas piping, boiler installation, and heating system maintenance for residential and commercial properties since 1989.
Emergency Plumbing HVAC Repair Gas Piping
(603) 431-8688 Call Profile
Not rated yet
CAC Mechanical Services
Emergency
Not rated yet
30+ years of family-owned HVAC expertise
Trusted HVAC contractor serving Salem, NH and surrounding areas. Offering heating, cooling, and air quality solutions for homes and businesses with 24/7 emergency service and energy-efficient systems.
HVAC Repair Air Conditioning Installation Heating Maintenance
(603) 893-6618 Call Profile
Not rated yet
Eckhardt & Johnson
50+ Years
Emergency
Not rated yet
Family-owned since 1917 with generational expertise in mechanical contracting
Trusted commercial HVAC and mechanical contracting services in New Hampshire since 1917. Eckhardt & Johnson offers full-service construction, design/build solutions, and 24/7 emergency support.
Commercial HVAC Construction Design/Build
(603) 622-7493 Call Profile
Not rated yet
Admiral Climate Control
14 Years
Emergency
Not rated yet
We offer 70+ years of combined HVAC expertise for reliable solutions.
Trusted HVAC contractor in Rochester, NH, offering 24/7 emergency furnace, boiler, and AC repair/installation. 70+ years of combined experience, BBB A+ rated, EPA certified.
Furnace Repair Boiler Installation Air Conditioning
(603) 330-3014 Call Profile