Contact Sign In Add Your Business

Which HVAC Contractor Should You Choose in Connecticut?

Review 60 HVAC contractors across Connecticut, including Bridgeport, Manchester and New Milford, and find out what each company offers. Consider customer feedback and business details, then shortlist providers who handle the type of heating or cooling work you need.
Avon (1)
Bloomfield (2)
Bridgeport (4)
Bristol (2)
Brookfield (1)
Brooklyn (1)
Cheshire (1)
Clinton (1)
Danbury (1)
East Hartford (1)
East Lyme (1)
East Windsor (1)
Enfield (1)
Fairfield (1)
Glastonbury (3)
Guilford (1)
Hamden (1)
Ledyard (1)
Manchester (4)
Meriden (1)
Middletown (1)
Milford (3)
Monroe (1)
New Haven (1)
New London (1)
New Milford (4)
Norwalk (1)
Norwich (1)
Oxford (1)
Plainville (1)
Portland (1)
Preston (1)
Putnam (1)
Shelton (1)
Simsbury (1)
Southington (1)
Stratford (1)
Watertown (1)
West Hartford (2)
West Haven (2)
Westbrook (1)
Wethersfield (1)
Willington (1)
16 reviews
Duct Diagnostics
16 reviews
At Duct Diagnostics, we believe in offering more than just a basic cleaning service. Our technicians use industry-leading techniques and equipment to ensure your ducts are not only clean but functioning...
Website (888) 382-8363 Call Profile
6 reviews
Alliance Heating & Air Conditioning
47 Years
Emergency
6 reviews
35+ years serving Connecticut and New York HVAC needs
Trusted HVAC contractor serving Bridgeport, CT since 1979. Offering residential, commercial, and specialty heating and cooling solutions with 24/7 emergency service.
HVAC Installation Emergency Repairs Geothermal Systems
(203) 335-9464 Call Profile
1 review
S K Mechanical
Emergency
1 review
24-hour emergency dispatch available
Trusted HVAC and boiler services in Connecticut. S K Mechanical offers 24/7 emergency support, certified technicians, and comprehensive mechanical solutions for residential and commercial clients.
HVAC Repair Boiler Installation Emergency Services
(860) 533-2320 Call Profile
4 reviews
East River Energy
42 Years
Emergency
4 reviews
Providing energy services since 1984 with a locally owned and operated team.
East River Energy offers heating oil, propane, HVAC installation, and emergency services in Guilford, CT, since 1984. Serving residential and commercial clients with reliable delivery and 24/7 support.
Residential Heating Oil Propane Gas HVAC Installation
(203) 453-1200 Call Profile
2 reviews
Action Air Systems
2 reviews
We have 35 years of HVAC and plumbing expertise.
Action Air Systems offers 35 years of HVAC and plumbing expertise in Connecticut, providing custom, reliable solutions that keep commercial facilities running smoothly.
Commercial Design/Build HVAC/R Services Plumbing and Piping
(860) 645-8838 Call Profile
5 reviews
Alternative Heating & Supplies
24 Years
5 reviews
Family-owned since 2002 with technical expertise in wood boiler systems
Discover premium wood boiler parts and maintenance solutions at Alternative Heating & Supplies. Serving homeowners nationwide since 2002 with reliable components and expert guidance.
Wood Boiler Parts Heat Exchangers Circulating Pumps
(203) 881-1602 Call Profile
ETTER Engineering
50+ Years
Emergency
Not rated yet
ETTER Engineering
50+ Years
Emergency
Not rated yet
We have over 80 years of experience in combustion engineering.
ETTER Engineering delivers combustion services, safety audits, and custom systems since 1940. Specializing in oil-to-gas conversions, NFPA-86 compliance, and precision-engineered equipment for industrial efficiency.
Combustion Services Safety Audits Oil to Gas Conversions
(860) 584-8842 Call Profile
Not rated yet
M.J. Emonds Mechanical Contractors
31 Years
Emergency
Not rated yet
We offer 25+ years of specialized HVAC expertise in Connecticut
Trusted HVAC installation and repair services in Connecticut. M.J. Emonds Mechanical Contractors offers expert heating, ventilation, and air conditioning solutions for residential and commercial properties since 1995.
Air Conditioning Heating Systems Furnace Installation
(860) 657-4554 Call Profile
Not rated yet
ClearWater Industries
34 Years
Emergency
Not rated yet
We have 30+ years of specialized experience in industrial water treatment systems
Expert industrial water treatment solutions since 1992. ClearWater Industries delivers customized boiler, cooling tower, and closed loop system treatments with emergency services available.
Boiler Water Treatment Cooling Tower Services Closed Loop Systems
(203) 944-0066 Call Profile
Not rated yet
Noble Fire Brick
50+ Years
Emergency
Not rated yet
We offer over 40 years of specialized expertise in industrial furnace design and maintenance.
Noble Fire Brick provides custom industrial furnaces, ovens, and thermal processing equipment. Serving global industries since 1972 with repair, maintenance, and turn-key solutions.
Furnace Design Emergency Repairs Preventive Maintenance
(860) 623-9256 Call Profile