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TRUSTED BY WILLISTON PARK, NY HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon407
    Verified heating and air conditioning services reviews

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

Avatar for Panda HVAC Inc
Panda HVAC Inc
4.8(
39
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Williston Park, NY and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"We had a phone call and he actually helped me figure out that I might need a plumber instead of HVAC repair. Mark was very courteous and so helpful! If we do end up needing to go back to him I will definitely call for them to make a visit."
CURRENT OFFERS
CURRENT OFFERS
CURRENT OFFERS
CURRENT OFFERS
CURRENT OFFERS

+21

Response time2 days
4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Arvada Mechanical Corp.
Arvada Mechanical Corp.
4.8(
18
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+39 more

Serving Williston Park, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"This Company is top notch! They quickly responded to my urgent message in regard to no heat in the house and had the service guy arrive to the door right after completing another job. They were very professional and did the repair in no time and price quoted over the phone was exactly what was charged for the service. We will definitely call this Company again for any boiler repairs. Thank you!"
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+4

Response time8 hrs
Recommended by87%of homeowners
Avatar for AC Air Duct Cleaning
AC Air Duct Cleaning
5.0(
30
)
Air Ducts & Vents - Clean

Serving Williston Park, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"The assigned technician, John, was on-time, knowledgeable, provided suggestions, and thorough. Oftentimes, people don’t realize how important this service is. If I were you, I would book AC Air Duct cleaning!"
Additional Photos
Additional Photos
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+29

Response time7 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Wise Aire Mechanical Inc
Wise Aire Mechanical Inc
4.7(
50
)
Ductless Mini-split A/C - Install or ReplaceDuctless Mini-split Heating System - Install or Replace

Serving Williston Park, NY and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"Kahlil is very professional, takes his time to answer questions, arrived at appointed time even during a rain storm. During the course of the install, it was found wiring for the air conditioning needed to be changed from 110 to 220. Khalif found someone to take care of it immediately. The men working with him -Andy and Jose, were courteous, left the work site in a neat and clean order- they placed protective coverings down to protect my wood floors. We are now enjoying a comfortable evening in our home . I highly recommend Khalifa and his company"
18k Ductless unit in family room & living room
Bedroom unit
Bedroom unit
Mitsubishi Condenser
Bedroom unit

+3

Response time7 hrs
1 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Comfort Ductwork Systems, Inc.
Comfort Ductwork Systems, Inc.
4.9(
73
)
Central A/C - InstallHeat Pump - Install or ReplaceDuctless Mini-split A/C - Install or Replace+1 more

Serving Williston Park, NY and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"The owner Jonathan was very professional and he explained everything to me about the furnace that he was going to install . He was prompt and installed my new furnace in a few hours and it was giving us nice warm air, I would highly recommend Anyone to use him for your next heating project ."
Condensing Boiler & Indirect Hot Water Heater
Central HVAC
Oil Fired Boiler & Indirect Hot Water Heater
New Install
Thermostat Control

+2

Response time11 hrs
Response rate86%
17 neighbors recently requested a quote
Avatar for All Phase Duct Cleaning
All Phase Duct Cleaning
4.9(
78
)
Air Ducts & Vents - Clean

Serving Williston Park, NY and surrounding areas

Approved

In business since 1998

Free estimates

Small jobs welcome

"Beautiful professional job. Could not be more pleased with the work. Ducts and dryer vent were filthy and have been wonderfully cleaned. I wholeheartedly recommend this business and will use ongoing."
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Just The Appliance Guy
Just The Appliance Guy
4.9(
99
)
Ductless Mini-split A/C - Install or Replace

Serving Williston Park, NY and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Installed a free standing Viking 5 series. (Not in options) Justin was great!. Efficient, knowledgeable, prepared (had "maybe" parts at the ready) and best of all a warm personality. He made adjustments to the stove and pointed out manufacturing/shipping problems that I would not have seen, and gave me advice on getting them sorted. I would recommend him to anyone who needs this type of service."
bosch washer and dryer repair
stove repair
a/c split system repair
dishwasher repair
Refrigerator repair

+3

Response time8 hrs
4 neighbors recently requested a quote
Recommended by98%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

Freon will go in the refrigerant lines near the back of your AC unit. Look for small ports with caps on a thin copper line—the Freon goes into those ports. You are best off hiring a licensed HVAC professional who can complete the job safely and correctly.

Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.

High humidity is one of the most common reasons for air vents to sweat or produce condensation. When the cool, dry air from your HVAC unit meets warm and moist air in your home, it will cause condensation. Insulating your ductwork can help prevent this. If you live in a very humid region, a dehumidifier can also help.

Yes, it’s best to turn off an AC unit that’s blowing hot air to prevent system damage and avoid expensive energy bills. If you let the AC continue running, it will put more strain on the condenser coil and compressor. Plus, if the AC is blowing hot air because of a refrigerant leak, it can also lead to a frozen evaporator coil.

They can, but it’s not as common. Window AC units are much smaller than whole-house systems and less likely to develop refrigerant leaks or similar issues. As a result, you will rarely need to add a new refrigerant, limiting overcharging problems. However, it’s still important to leave refrigerant management in the hands of professionals when window units need work.

The Williston Park, 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.