Available 24/7
Emergency Heating Repair
No heat, uneven heat, strange noises, short cycling, or a system that will not start. We diagnose furnace, boiler, heat pump, ductless, and thermostat problems.
24/7 Heating Repair & HVAC Service Across Waterbury, Litchfield County & Central Connecticut
American Heating & Air Conditioning Service repairs furnaces, boilers, heat pumps, and ductless mini-splits throughout Hartford, Litchfield, and New Haven Counties.
- Trusted since 1978
- Licensed & insured
- NATE certified
- Google Guaranteed
Talk to a real person. Emergency service is available day or night.
Now responding
No-heat and heating calls
Hours24/7 emergencies
CoverageHartford, Litchfield, New Haven
CredentialsLicensed and insured
Since 1978local heating and HVAC service
Google Guaranteedscreened service provider
NATE Certifiedtrained HVAC expertise
CT LicensedHTG.0386984 · SHM.0005083
Who we are
A family HVAC company in Watertown, CT, since 1978
American Heating and Air Conditioning Service is a family-owned heating and cooling contractor at 1114 Middlebury Rd in Watertown, Connecticut. We repair, maintain and install furnaces, boilers, heat pumps, ductless mini splits, central air and water heaters for homes and businesses across Hartford, Litchfield and New Haven Counties.
A real person answers 203-756-5040 day and night, every day of the year. Our technicians are NATE certified, the company holds Connecticut licenses HTG.0386984 and SHM.0005083, and we are a Google Guaranteed provider.
We are based in Watertown and work across Greater Waterbury every day, with dedicated pages for Watertown, Oakville, Middlebury, Waterbury and Naugatuck, plus the full service area.
- Address
- 1114 Middlebury Rd, Watertown, CT 06795
- Phone
- 203-756-5040
- Hours
- Open 24 hours, 7 days a week
- Since
- 1978, family owned
- Licenses
- CT HTG.0386984 and SHM.0005083
- Counties
- Hartford, Litchfield and New Haven
- Rating
- 4.9 stars from 470 Google reviews (October 2026)
Residential and commercial HVAC
Heating Services Across Waterbury, Litchfield County & Central Connecticut
Repair, maintenance, installation, and efficiency service for the systems that keep Connecticut homes and businesses warm.
Furnace Services
Gas and oil furnace repair, maintenance, installation, and replacement for homes and businesses.
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Boiler Services
Boiler repair, maintenance, replacement, and high-efficiency upgrades for dependable hydronic heat.
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Heat Pumps & Ductless Mini-Splits
Year-round heating and cooling with ductless installation, repair, maintenance, and multi-zone options.
Explore ductless systems
Water Heater Services
Tank and tankless water heater repair, maintenance, replacement, and new installation.
Explore water heater services
Heating Inspections & Maintenance
System inspections, efficiency testing, preventive maintenance, and seasonal tune-ups.
Explore heating maintenance
Commercial HVAC
Heating and cooling service for commercial systems, rooftop equipment, and business facilities.
Explore commercial HVAC
Cooling services available year-round
Air conditioning repair, maintenance, ductless cooling, and replacement
Explore cooling services
Offers, plans and financing
$500 off a new heating or cooling system
Replacing a furnace, boiler, heat pump or central air system? Every new installation comes with $500 off and our one-year parts and labor warranty. Call to confirm the offer for your project when we quote.
$500 off every new system installation
Plus a one-year parts and labor warranty on the installation. Your proposal spells out the equipment, the warranty and any registration the manufacturer requires.
Call 203-756-5040Maintenance plans
Plans start as low as $35 a month per system, with priority scheduling. The rate varies by equipment.
Financing
Ask about financing options when we quote, including loans offered through a partnership with the CT Green Bank.
Local work
Done right
Repair first. Clear options.
Heating Repairs Explained Clearly, Without Sales Pressure
We diagnose the problem, explain what failed, and lay out the practical paths forward. No mystery. No pressure. Just the information you need to make the right call for your home.
- Fast response with an honest arrival window
- Factory-supported experience across leading brands
- Financing available for qualified repairs and upgrades
Real stories. Real comfort.
When the house goes cold, the details matter.
Fast communication, careful diagnosis, and a repair that holds up. That is the standard.
“On the coldest day of the year, American Heating Service responded fast. Ron arrived ahead of schedule and had our nearly failed furnace running again in under an hour.”
What customers say
Rated 4.9 by Connecticut homeowners
470 Google reviews, October 2026
★★★★★These guys are amazing! Frank was on time, very kind, and very knowledgeable. He diagnosed our issue extremely quickly and was able to fix it for an incredibly reasonable price. Perhaps more important, he went above and beyond to assuage our anxiety as new homeowners, and took the time show us how use our system efficiently in order to save money and reduce future stress on our equipment.
Brian P.
★★★★★After having an emergency with our central air unit leaking and calling every company in the truck state area including our previous company of choice, American Heating was the only company that was able to fit us in same day and get the job done at a very reasonable price. We will only use this company going forward for all our heating and cooling needs.
Nadia and Dimitre D.
Local service. Wider reach.
Serving Waterbury, Litchfield County & Central Connecticut
Serving homes and businesses across Hartford, Litchfield, and New Haven Counties.
Our Heating & Cooling Service Area
HVAC Service in Your Community
Allentown
Bantam
Beacon Falls
Bethany
Bethlehem
Bishops Corner
Bristol
Bunker Hill
Burlington
Cheshire
Chippens Hill
East Bristol
East End
East Mountain
Harwinton
Hopeville
Lakeside
Litchfield
Marion
Middlebury
Milldale
Morris
Naugatuck
Neufa
New Preston
Northfield
Oakville
Oxford
Pine Bridge
Plainville
Plantsville
Platts Mills
Plymouth
Prospect
Quaker Farms
Riverside
Roxbury
Seymour
South Britain Historic District
Southbury
Southford
Southington
Terryville
Thomaston
Town Plot Hill
Union City
Washington
Washington Depot
Waterbury
Watertown
Wolcott
Woodbury
Woodville
Questions, answered
Heating and cooling questions, answered
Straight answers about service, coverage, pricing and safety. Still have a question? Call 203-756-5040 any time.
Last updated October 16, 2026
What does American Heating and Air Conditioning Service do?
We repair, maintain and install heating and cooling systems for homes and businesses: gas and oil furnaces, boilers, heat pumps, ductless mini splits, central air, tank and tankless water heaters and commercial rooftop units. We are a family-owned company in Watertown, CT, and have served Connecticut since 1978. See all heating services and cooling services.
Do you offer 24/7 emergency heating repair?
Yes. A real person answers 203-756-5040 24 hours a day, 7 days a week, including nights, weekends and holidays. Call us for no heat, a boiler or furnace that will not start, a leaking water heater or an air conditioner that stopped cooling.
What towns and counties do you serve?
We serve Hartford, Litchfield and New Haven Counties from our shop in Watertown, including Waterbury, Watertown, Oakville, Middlebury, Naugatuck, Southbury, Oxford, Cheshire, Southington, Wolcott, Prospect, Thomaston, Terryville, Plymouth and Bristol. The service area page lists every town.
Are your technicians licensed and certified?
Yes. The company holds Connecticut licenses HTG.0386984 and SHM.0005083, our technicians are NATE certified, and we are a Google Guaranteed service provider. You can look up any Connecticut trade license on the state eLicense lookup.
Do you have a discount on a new furnace, boiler or AC system?
Yes. Every new system installation is $500 off and carries our one-year parts and labor warranty. Call 203-756-5040 to confirm the offer for your project when we quote.
How much does an HVAC maintenance plan cost?
Our maintenance plans start as low as $35 a month per system, and the rate varies by equipment. Plan members get priority scheduling. Most systems should be checked once a year, heating before winter and cooling before summer.
Can I finance a new heating or cooling system?
Yes. We walk you through financing options when we quote, including loans offered through a partnership with the CT Green Bank.
What should I do if I smell gas?
Connecticut’s utility regulator says that if the odor is strong, leave the premises immediately and tell others to leave, then call your gas company or 911 from a neighbor’s home. Do not use a phone or flip light switches inside. Call us once everyone is safe and the gas company has cleared the house.
Ready when you are
Schedule Heating Service in Waterbury or Litchfield County
Call for an emergency or schedule a visit. We will confirm the time and help you understand the next step.
Call 203-756-5040
Schedule online
Emergency service available 24 hours a day, 7 days a week.