Greenwich, CT · Fairfield County

Heating & HVAC Services in Greenwich, CT

Comprehensive HVAC service for Greenwich properties, with discreet installation work, multi-zone comfort expertise, and high-end maintenance support.

Call (203) 309-4187 Get a Free Estimate

Same-day & emergency service
Local, NATE-certified techs
Upfront, flat-rate pricing
Serving Greenwich since 2008

Free Estimate in Greenwich

Tell us what you need and we'll call you right back — usually within the hour during business hours.

What we do in Greenwich

Complete HVAC services for Greenwich homeowners

From a winter no-heat emergency to a cooling retrofit in an older home, we keep Greenwich properties comfortable all year — with honest pricing and fast response.

Heating, Furnace & Boiler Repair

Fast no-heat repair for furnaces, boilers, oil heat, and cold-climate heat pumps.

$109 diagnostic (waived with repair)

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Heating, Boiler & Heat Pump Installation

High-efficiency furnace, boiler, and cold-climate heat pump upgrades for Connecticut winters.

Free in-home estimate

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AC Repair

Same-day central AC and ductless cooling repair for humid Connecticut summers.

$109 diagnostic (waived with repair)

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AC Installation & Replacement

Central AC, ductless, and high-velocity cooling systems for older Connecticut homes.

Free in-home estimate

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Indoor Air Quality

Whole-home filtration, purification, humidification, and dehumidification for healthier air.

Free air quality assessment

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Heating & Cooling Maintenance

Seasonal tune-ups that protect boilers, furnaces, heat pumps, and AC systems year-round.

$149 tune-up / plans from $19.99/mo

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Local coverage

Proudly serving every Greenwich neighborhood

We work throughout Greenwich and Fairfield County, including these communities:

Old Greenwich Cos Cob Riverside Banksville

Zip codes served: 06830, 06831

24/7 Emergency Service

No heat, no cooling, or frozen-pipe risk in Greenwich? We answer day or night.

Mon–Fri 7:00 AM – 8:00 PM

Saturday 8:00 AM – 6:00 PM

Sunday Emergency Service Only

(203) 309-4187

Real reviews

What your Greenwich neighbors say

“We wanted to add air conditioning to a historic home without compromising its character. Their recommendation for a discreet cooling solution was smart, the craftsmanship was excellent, and humidity control is dramatically better now.”

S Sophie R. Old Greenwich, Greenwich · AC Installation

Good to know

HVAC in Greenwich — FAQs

Do you offer same-day heating or AC repair in Greenwich?

Yes. We provide same-day service throughout Greenwich and the surrounding Fairfield County area. We reserve daily slots for urgent no-heat and no-cooling calls, so call us early and we'll get a technician to you fast.

What HVAC services do you provide in Greenwich?

We offer the full range of HVAC services in Greenwich: boiler, furnace, and heat pump repair and replacement, AC repair and installation, maintenance tune-ups and plans, indoor air quality solutions, and 24/7 emergency service for both heating and cooling.

Which Greenwich neighborhoods do you serve?

We serve all of Greenwich, including Old Greenwich, Cos Cob, Riverside, Banksville, plus the surrounding zip codes 06830, 06831. If you're nearby and don't see your neighborhood, just call — we likely cover you.

Are you licensed and insured to work in Greenwich?

Absolutely. New Canaan HVAC is fully licensed (CT S-1 S1-0404218) and insured in the State of Connecticut, and our technicians are NATE-certified and background-checked for your peace of mind.

We also serve nearby cities

New Canaan Darien Stamford Norwalk Wilton

Ready for fast HVAC service in Greenwich?

Call now or request your free estimate. Same-day appointments available across New Canaan and lower Fairfield County.

(203) 309-4187 Get a Free Estimate

Licensed & Insured Upfront Pricing 24/7 Emergency Service