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

To reset your air conditioner, start by turning it off at the thermostat. Then, shut off power to the AC system at the circuit breaker. Some units have a dedicated "reset" button; if yours does, press and hold it for three to five seconds. If your air conditioner doesn't have a reset button, or if you are resetting it after a power outage, leave the circuit breaker off for at least 30 minutes to allow the system to reset itself. Afterward, turn the power back on at the breaker, turn on the AC from the thermostat, and set it to "cool" to test the system.

The top reason to purchase an HVAC maintenance contract is the fact that it ensures you are detecting problems before they turn into expensive fixes. Secondly, this type of contract provides priority service, which is nice if it’s peak busy season. Finally, an HVAC maintenance contract provides discounts on parts and labor for repairs, which can save you a good amount of money if your unit breaks.

There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.

No, a furnace is not the same thing as an AC, or air conditioner, but these are both parts of an HVAC system. They both use air ducts to transport cool or hot air around your home to achieve a comfortable temperature set by your thermostat. An AC runs on electricity, while a furnace can use different fuel sources.

Yes, the furnace and AC use the same blower. The blower is located in the base of the furnace and pushes hot air out of the furnace and into the ducts. It also pushes cool air through the home when the air conditioning is on. Even though the furnace and air conditioning work independently of one another, the blower is an essential component for both systems.

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.