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Find Air conditioning pros in Williston Park

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)

Serving Williston Park, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Ali came over to our home when we called with a concern of the air flow in our central air conditioning system. He checked the return, the air flow, the temperature at all of the vents, and the entire system. It had more to do with the age of the system and gave us suggestions on how a different filter could increase the air flow. He did all of this and refused to take any money for his time. He is a true honest professional and someone that we would recommend to everyone."
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+1

3 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Panda HVAC Inc
Panda HVAC Inc
4.8(
39
)

Serving Williston Park, NY and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Wonderful. I called PANDA and they came out in 2 days and did the work in 1. These brothers treat you right and do the right job! They did my central heat repairs 2 1/2 years ago and they were the first ones I called again when the air went and I was right to do so. Thank you Serge and Mark!"
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+21

Response time2 days
8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Heating & Cooling Pros, LLC
Heating & Cooling Pros, LLC
4.7(
115
)

Serving Williston Park, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Moh and his partner were such sweet guys, explained everything to me before starting anything and took the time to make sure everything part of air conditioning system was cleaned and in perfect working order at the capacity the air conditioner should be working. They went above and beyond. Highly recommend them!!"
Response time4 hrs
7 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Comfort Ductwork Systems, Inc.
Comfort Ductwork Systems, Inc.
4.9(
73
)

Serving Williston Park, NY and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Just can't say enough good things about this company. I signed a contract they came on time. They installed new residential carrier air conditioning unit. Did a complete clean up when they were done. Everything is working just fine. I would recommend this company if you're considering putting in home air conditioning system."
Condensing Boiler & Indirect Hot Water Heater
Central HVAC
Oil Fired Boiler & Indirect Hot Water Heater
New Install
Thermostat Control

+2

Response time11 hrs
33 neighbors recently requested a quote
Recommended by94%of homeowners
JDGC General Contracting Corporation
4.7(
651
)

Serving Williston Park, NY and surrounding areas

Approved

In business since 1991

Free estimates

Customers say: Quality work

"- Received a call back in a timely manner. - Called on Wednesday and had an appointment for Thursday. - Appointment range given was between 12 pm - 4 pm and was notified at about 12:30 pm that he was finishing a job in another locale and I was the next stop. Arrived by 2 pm and completed by 4 pm. - Excellent service and plan to have this company do yearly maintenance on my ductless air conditioning units."
Response time12 hrs
4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Wise Aire Mechanical Inc
Wise Aire Mechanical Inc
4.7(
50
)

Serving Williston Park, NY and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"They were great! Family run business who were with us every step of the way. It took us a lot of time to decide on what ductless a/c units we wanted and exactly where we wanted them installed but Keith was so helpful working with our many requests and helping us save money to stay within our budget. Highly recommend these guys."
18k Ductless unit in family room & living room
Bedroom unit
Bedroom unit
Mitsubishi Condenser
Bedroom unit

+3

Response time7 hrs
10 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Just The Appliance Guy
Just The Appliance Guy
4.9(
99
)

Serving Williston Park, NY and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Mr Justin Barnes did an OUTSTANDING job installing a new PTAC/air conditioning and heating unit. Justin first showed up to evaluate my 15 year old unit - and then without any pressure, discussed my repair options, plus my replacement options. He was totally neutral, and I made my own decision with zero pressure. When I decided replacement was best for me, Justin found the ideal replacement high efficiency PTAC, priced it, picked it up from a warehouse and installed it flawlessly. He also checked in post-installation to ensure it was behaving correctly and that all settings were good. Iâ ve had many appliance specialists in my apartment, and Justin is THE BEST. Good, helpful, frank advice from someone who clearly loves repair and installation, plus helping people - who are freaked out by appliances - out. Justin also prices fairly, and is worth every penny of his wage. Mr Justin Barnes is on your side, and is a gentleman"
bosch washer and dryer repair
stove repair
a/c split system repair
dishwasher repair
Refrigerator repair

+3

Response time8 hrs
5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.6(
68
)

Serving Williston Park, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I had the equipment replaced, a brand new, super high efficiency, fancy, lovely stuff. It's a central air system, and it's Lennox equipment. It's high efficiency. You can get it for less than that, but you're not gonna get the high efficiency quiet and all that kind of stuff. I had received other quotes which were like more money for the same system. I have been using them since 1986. No complaints. They do their thing, and I can't fault them. I have a service contract with them for this."
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+13

Response time3 days
12 neighbors recently requested a quote
Recommended by94%of homeowners
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FAQs for air conditioning projects in Williston Park, NY

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Williston Park, NY homeowners’ guide to air conditioning services

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