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Best heating and air conditioning pros near Greenwich, NY

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TRUSTED BY GREENWICH, NY HOMEOWNERS

  • Average homeowner rating star icon4.1
    Average homeowner rating
  • Verified reviews icon37
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Greenwich - Updated Nov 2026

Avatar for A-1 Heating and Cooling Enterprises
A-1 Heating and Cooling Enterprises
4.9(
112
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Boiler or Radiator Heating System - Repair+5 more

Serving Greenwich, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Will was able to squeeze me in the next day for an HVAC service. He was very courteous, explained everything he did, and even had pictures. He gave me some great tips to help save money. I will be using A-1 for all my heating/cooling needs in the future."
Response time7 hrs
2 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Crisafulli Bros. Home Services
Crisafulli Bros. Home Services
4.6(
67
)
Gas Furnace / Forced Air Heating System - InstallAir Ducts & Vents - CleanCentral A/C - Install+23 more

Serving Greenwich, NY and surrounding areas

Approved

In business since 1939

Credit card accepted

Offers commercial services

"Just too expensive for what you get. Feels like a big company nickel and dime move. I get having a trip charge. Which was $109. But then to have the tech who was great btw (not his fault), but was tentative about fixing the problem because of creating more damage. Another $160 for a simple diagnostic charge, again without fixing the problem. I already knew the diagnosis. So he basically did a Band-Aid fix (greased the Knob) and still charged me over $280+ for what equated to be 10 minutes of work. It was ridiculously high for the service provided. Next time I?m going to an independent, local guy."
Response time1 day
34 neighbors recently requested a quote
Recommended by93%of homeowners
FinMar Comfort, LLC
5.0(
11
)
Ductless Mini-split A/C - Install or ReplaceHeat Pump - Install or ReplaceHeat Pump - Repair or Service

Serving Greenwich, NY and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Sean GilHooly of FinMar Comfort, LLC, was a joy to hire in replacing my heating & cooling unit. He is truly a professional, and a gentleman. This is his new business venture for him, and he is very well qualified to perform the job at hand to perfection. I wish him well and would highly recommend him to anyone who is in need of his services. Five Stars, from me!"
Response time7 hrs
5 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Always Faithful Heating and Cooling
Always Faithful Heating and Cooling
5.0(
5
)
Central A/C - InstallGas Furnace / Forced Air Heating System - RepairBoiler or Radiator Heating System - Install or Replace+45 more

Serving Greenwich, NY and surrounding areas

Approved

Emergency services offered

Customers say: True professional

"The owner of the company, Jeremy Morin, was prompt and the furnance was cleaned in a timely manner. Also, he followed up with an email advising me on quotes for a new furnance as well. I will definitely continue my services with this company, and will be referring his business to my family and friends as well. I would like to mention Jeremy is a Veteran as well, and offers discounts to service men and women. Thank you again for a job well done."
Combination boiler with 4 zones
Combination boiler with 4 zones
Additional Photos
Additional Photos
Additional Photos

+10

Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Duct Kings
Duct Kings
5.0(
5
)
Air Ducts & Vents - Clean

Serving Greenwich, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Technicians arrived on time and wore shoe coverings and respected my home while they were working. After they were done, you never knew they were here, other than a fresh smelling scent because the ducts have been cleaned"
After
Air Duct Before
Before 2
Before Cleaning 3
After Cleaning

+1

Response time3 hrs
Response rate98%
63 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

Though it may seem redundant, you can absolutely have a central AC unit and a window AC in your home. In fact, if you place a window AC unit near your central air, it can help move the cooler air throughout your home. But doubling up on your AC methods can get pricey, so factor in cost accordingly.

It depends on how fast an HVAC technician can resolve the issue. First, if there's a refrigerant leak, you’ll want to keep small children and pets out of the house. Next, you’ll want to turn off the AC unit to ensure no more freon enters your home. Finally, you’ll need an AC technician pro to come to your home and fix the leak immediately. Ultimately, it’s best to leave your home if you discover a freon leak—the risk of exposure is very high, and it’s not worth risking your health to stay.

Air conditioners can stop working in the middle of the night for many reasons. Your local power grid might shut down late at night. Power surges can also trip your breakers if too much power is being used in the area at the time. If your AC is connected to a digital thermostat, it gets naturally cooler at night, so the outdoor temperature might dip below the automated setting to turn the cooling system off.

Your central A/C unit should be professionally serviced and inspected at least once a year to ensure it operates properly and efficiently. This is best done before the peak cooling season. A full-service inspection by a qualified pro will typically include checking safety components for issues like carbon monoxide leaks, verifying cooling components and coolant levels, and inspecting electrical parts like fuses and wiring. Regular servicing enhances efficiency, mitigates potential problems, and maintains optimal performance. Because AC systems contain hazardous refrigerant, professional handling is essential.

A blocked return air vent can cause your HVAC system to work much harder and, therefore, less efficiently. The result is higher utility bills and poorer air quality. A blocked return air vent can also cause unpleasant dust, dander, and odors to linger in your home’s air.

The Greenwich, NY homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.