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Best heating and air conditioning pros near West Islip, NY

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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon461
    Verified heating and air conditioning services reviews

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

Avatar for AR AIR CORP
AR AIR CORP
4.9(
85
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+31 more

Serving West Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1999

Free estimates

Emergency services offered

"I recently had a brand-new central air conditioning unit installed by AR Air Corp, and I was very happy with the experience! Rafael was great to work with—he was very responsive and quick to answer all of my questions via text or phone. He took the time to send me info on several different units and provided helpful information so I could make an informed decision. The pricing was very competitive compared to other estimates I received. The crew arrived on time, completed the entire installation in one day, and left everything spotless. Excellent service from start to finish."
Heating and Air Conditioning Project
Heating and Air Conditioning Project
Heating and Air Conditioning Project
Heating & A/C Project
Installation of Merv13 Pleated filters I’m order to comply with State regulations.

+173

Response time9 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving West Islip, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Can't speak highly enough of Ali. Prompt, courteous, but most importantly able to get to the bottom of problem without ripping off the customer. AN HONEST MAN! After many years of searching, I've finally found an HVAC repair company that I can trust! Happy days are hear again."
Additional Photos
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+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
Just Rite Heating and Cooling
4.9(
132
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceHeat Pump - Install or Replace+6 more

Serving West Islip, NY and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

"I am not a review writer at all, however, I felt it only fair to write a review for Eric and Just Rite HVAC after a wonderful experience. This company and Eric the owner are, in a word, the BEST! I needed main floorâ s central AC replaced. A friend recommended me to Eric. I texted him and he responded with a few hours. setting up an appointment was fast and easy. Eric was knowledgeable and timely. My job was extremely difficult based on the location of my air handler and there was a high chance the ceiling would need to be opened for access. When Eric arrived for the job he inspected further and said he was going to try not to have to open the ceiling for access. He and his crew went well beyond what anybody else would have done and meticulously dismantled the old air handler piece by piece. It was time consuming, difficult and energy consuming. But they were able to do and saved me from having a gaping hole in my ceiling. They did an excellent job setting up the new air handler in the same location and even fixed errors the previous installer had made! The entire crew were highly professional, courteous and clean. They put down drop cloths everywhere and cleaned up everything when they were done. I highly, highly, and without reservation, recommend Eric and Just Rite HVAC and will tell anybody I know about them."
Response time5 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
New York HVAC Corporation
4.3(
60
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+20 more

Serving West Islip, NY and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quality work

"I was in need of boiler repairs. Most plumbing companies I contacted wanted to charge by the hour plus parts. I found NY HVAC on Home advisor and phoned them speaking with Vinny. Vinny from NY HVAC was a true professional. He told me over the phone that I would get great work at the price he quoted. When he arrived, he explained everything in detail that should be done to my boiler and maintained the original quote he had given me over the phone even though he was adding in additional repairs for me. Just an overall nice guy and very clean work. It's tough to find an honest plumber that does great work and today I found one. I have already placed New York HVAC phone number in my phone as my go-to Plumbing company. There is a reason this company has solid reviews and I'm adding a 5 STAR to this review and will share my positive experience with friends and family looking for a great Plumbing Company."
 HVAC
 HVAC
 HVAC
 HVAC
 HVAC

+54

Response time1 day
1 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Patience HVAC, LLC
Patience HVAC, LLC
4.9(
30
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+35 more

Serving West Islip, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Let me just say that I am so lucky to find a Hvac company like Anthony's. I had 3 other contractors say my gas boiler needs to be replaced without really inspecting what was wrong. I found Patience hvac Inc when I was about to lose hope. He is super fair and through, went over explanations of each parts replacement needed, did maintenance clean up of boiler and extra miles on my 30 years old boile now it is back life just like new. I am really thankful to Anthony. He is quick, prompt, sincere and humble. Trust me call this guy, You will save lots of money and headache."
Peerless
Peerless Boiler with Hot Water
Annual Service
Response time4 hrs
Recommended by100%of homeowners
Avatar for Deer Park Ave Heating & Air Conditioning Corporation
Deer Park Ave Heating & Air Conditioning Corporation
4.4(
55
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+7 more

Serving West Islip, NY and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"I have lived in Deer Park for the last 8 years & I believe in hiring local contractors. We were having issues with our heating & air conditioning unit not having any heat. We called Deer Park Heating & Air conditioning corp & weâ re assured he would get to us that same day. The owner himself came on the job assessed the problem & explained what the problem was, & then repaired it. He did a great job, reasonably priced and never had the same issue again. 2) We were having a heatwave several years ago & of course perfect timing , No A/C. That same day my Son was Best Man in his friendâ s wedding and needing to wear a Tuxedo, Iâ m panicking, & called Deer Park Avenue Heat/A/C the owner came within an hour and fixed my A/C unit Thank God! We never had a problem with it since. Great company & they truly know there business. Thank you again for keeping my family warm In the winter and cool when itâ s roasting outside in the summer. You have a customer for life!"
Work
Work
Work
Work
Work

+188

Recommended by92%of homeowners
Avatar for N. H. Ross, Inc.
N. H. Ross, Inc.
4.7(
191
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceGas Boiler or Radiator Heating System - Install+2 more

Serving West Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1976

Warranties offered

Small jobs welcome

"A great company to deal with. Regardless of what problem you may have, they have technicians and repair men that will rake care of it. From electric to plumbing, AC/ heat. Great to have one place to call for everything. They are all so proffesional and friendly. I appreciate them using shoe covers when entering your home and the sales people are not pushy. Two things that always bug me. ! They state the facts. They are honest, the prices are fair, And they will give you options. I highly recommend them."
Bathroom Makeover
Bosch Combination Boiler
Gas Conversion
Rinnai Gas Combi Boiler
Old conventional gas boiler

+2

Response time30 mins
3 neighbors recently requested a quote
Recommended by89%of homeowners
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Showing 1-10 of 853
Heating and Air Conditioning FAQs, answered by experts

Yes, but they don’t feel the same as an AC-cooled room. You’ll feel cool, moist air, opposite from an HVAC system that dries the air as it cools. Ventless units also have less tonnage than alternatives like ductless and central air, which means they aren’t as capable of quickly cooling large spaces or circulating cold air.

A new HVAC system can increase your home's value by about 5% to 7%, which can translate to an added value of $2,500 to $3,000. The return on investment (ROI) can be around 30%, especially if you upgrade the entire system, including ductwork and insulation. Adding modern features like a smart thermostat can further increase your home’s value by making the heating and cooling systems more efficient and convenient. However, since a new unit can cost $10,000 or more to install, it's important to weigh the upfront cost against the potential increase in home value. For a specific assessment, it's best to consult a local AC installer.

The cost of annual maintenance depends on the type of HVAC system you have. AC service typically costs an average of $200 but ranges from $100 to $550. If your system needs repairs, the price will vary significantly depending on what needs fixing. However, addressing the issues as they arise can prevent further damage to your unit and keep it operating efficiently for much longer.

A one-stage air conditioner only has one setting, while a two-stage air conditioner has a high and low setting. A two-stage air conditioner costs between $500 and $2,500 more than a traditional air conditioner, but it has a longer lifespan and helps to increase energy efficiency. To make this decision, you should consider your energy needs and available budget.

AC evaporator coils should be cleaned at least once per year to keep your unit in good condition. For optimal performance, consider cleaning them twice a year—once before and once after the main cooling season. More frequent cleanings may be necessary for older systems, units with performance issues, or those in climates with high levels of humidity, dust, and dirt.

The West Islip, 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.