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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 Capital Region Plumbing and Heating Services, LLC
Capital Region Plumbing and Heating Services, LLC
4.2(
112
)
Gas Furnace / Forced Air Heating System - RepairGas Boiler or Radiator Heating System - RepairGas Boiler or Radiator Heating System - Repair - For Business+2 more

Serving Greenwich, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Avi returned my call right away, and followed up right before our scheduled appointment. I had a leaking and corroded taco zone valve ,as well as cool to the touch radiators in my home. Avi assessed and explained the work to be done. I had many quotes from other plumbers and hvac companies. Glad I used Boss Plumbing. The pipe work surrounding the leak looks so new and clean! Best part --He showed me how to bleed my radiators. Remember you get what you pay for!"
Response time4 hrs
Response rate97%
7 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%
62 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

Don’t run your AC with a wet filter. It can cause your AC to work too hard, which will run up your utility bill and cause extra wear and tear on the system. You could also spread moisture and mold throughout your house. Turn off the AC, remove the wet filter, and check for cracks or clogs. Fix the problem (with a pro’s help, if you need it), and put a dry filter in place before you turn the system back on.

No, heat pump maintenance needs are very similar to air conditioners, including keeping outdoor units clean, changing filters regularly, and occasionally scheduling a refrigerant check to see if any has leaked out. Heat pumps typically switch automatically between heating and cooling, so you don’t need to worry about manually changing them every season. However, since they are always on call, they can develop wear and tear faster than an air conditioner.

You can buy a house with a 15-year-old HVAC system if you inspect the system for performance and budget for a replacement within the next three years. You can also negotiate the price with the sellers. Ask to look at the unit’s maintenance records and energy bills for the last two years to determine the shape of the HVAC system and its operating costs. Spend time in each room of the house to gauge if the HVAC keeps the home at a consistent temperature throughout.

There are a few things you can do to make your AC repair technician’s job easier and your home more comfortable while you wait for AC repair:

  • Cut back trees, shrubs, and weeds around the outdoor compressor 

  • Clear a pathway inside and outside to your AC components

  • Set up a ladder for attic access if necessary

  • Pull your window AC out of the window and place in an easily accessible spot

  • Supplement with fans and open windows to help keep your house comfortable

It is possible to add air conditioning to an older home, but it can be very expensive to do so. Expect to pay anywhere from $6,000 to $17,000 or more for the ductwork and AC unit. You’ll also have to hack into the home’s walls and ceilings to add ductwork, which can impact the aesthetics of an old home.

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.