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Find Water heater repair or service pros in Islip

Avatar for Varsity Home Service Company, Inc.
Varsity Home Service Company, Inc.
4.4(
242
)

Serving Islip, NY and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"For my central A/C install. Varsity is the gold standard for professional service. Varsity works as a team who patiently brought me through the process from start to finish. I'm extremely satisfied with with the results, I will always have Varsity for my home services. Varsity earlier this year installed a walk in shower for me. The results were fantastic. In the future I will have Varsity install a hot water heater."
Shower Fixtures
Installation
Truck
Best of L.I. Winner 2024
Angi 2022 Super Service Award Winner

+86

Response time11 hrs
88 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Heating & Cooling Pros, LLC
Heating & Cooling Pros, LLC
4.8(
116
)

Serving Islip, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"My oil delivery line has gelled up and was blocking my furnace from getting oil. I sat in the cold for 2 days while calling a few companies who claimed they provided 'emergency' service 24 hours a day. Whenever I was able to get a live person on the phone they promised to be here the next day between certain hours. The hours came and went and not a single soul called me or came. I called Moh on Monday night and explained my situation and let him know that I didn't have any heat. He promptly sent me a text telling me he's be here by 10am the next day. He showed up at EXACTLY the time he said he would and immediately went to work. He cleared my oil line AND changed my mucked up furnace nozzles that hadn't been changed in years. He was quick, knowledgeable and took him time resolving my issue. He also suggested that I change to gas heat and I'm definitely going to use his company in the spring to do just that. I called him today because my filter is leaking a little and he's going to come back soon to resolve it. I HIGHLY recommend this company and particularly Moh. He's my go to guy from now on!"
Response time4 hrs
15 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.6(
68
)

Serving Islip, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I called All Weather to give me a quote for replacing my gas boiler. They set up a time for their salesperson to come over and give me a quote. The appointment was only a few days later and a man named Joe showed up on time. He spent some time with me, I told him I was looking for a new boiler and a new hot water heater, but I wanted to see what options I have (since I was debating going to a tankless water heater). He told me going indirect hot water tank is the best option and they always use this brand that's the "best one out there". Even though he may have been right, he didn't tend to my questions or concerns very well. I felt like he was getting annoyed that I had questions and eventually I just let him run the show just to get him out of my house faster. Especially when he gave me a quote of $8600, it was much higher than I was anticipating. One thing I really didn't like was when he said I'd have to get a permit since I live in an incorporated village, which would be an extra $500, meanwhile I already had another plumber tell me a permits only $200. So I went with another company. So even though I can't rate All Weather on their work quality, I didn't get a good feeling from their salesperson."
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+13

Response time3 days
12 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Patience HVAC, LLC
Patience HVAC, LLC
4.9(
30
)

Serving Islip, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I am very happy that I hired Patience HVAC to replace my hot water heater. I have an oil burner and oil hot water heater. The 18 year old heater was making crackling noises and I was advised by the oil company to replace it. I wanted to convert to a gas hot water heater and tried going through Lowes. However, they only do swap outs if the existing heater is already set up for gas. So I contacted several companies for a quote. Out of all of them, Anthony was the most professional, down to earth and reasonably priced. First, he suggested to explore correcting the issue on the old heater and save me money which was impressive. I decided to proceed with a new gas heater. The quote he gave me was $800 less than the next lowest quote. Anthony sent his workers Caesar and Matt the next day which I greatly appreciated. They were both very polite and wore covers on their shoes so to avoid dirtying my house more than necessary. Anthony came later in the day to ensure everything was done correctly. He then offered to call him with any questions even if they were not pertinent to the work they performed. I am extremely impressed with patience HVAC honesty, professionalism and reasonable prices. I will be sure to recommend them to friends and family. When I am ready to install a ductless air conditioner, I will definitely contact Patience HVAC."
Peerless
Peerless Boiler with Hot Water
Annual Service
Response time4 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Surefire Mechanical Corporation
Surefire Mechanical Corporation
4.5(
157
)

Serving Islip, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Called on a Sunday evening and there was a serviceman at my door by 8 AM Monday morning. Mike, the serviceman, was extremely knowledgeable, professional and courteous. Will recommend this company to anyone I know who needs air conditioning or servicing. Thanks again for the speedy service and knowledgeable serviceman who repaired the air conditioner quickly!"
4 Zone Navien Boiler
1st Floor AC System
Hi Efficient Heat and Hot Water
Snow melt sensor
Manifold

+14

Response time10 mins
Recommended by97%of homeowners
Tri Seasonal Plumbing, Inc.
4.1(
39
)

Serving Islip, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n

Avatar for BERARDI ELECTRICAL CONTRACTING, INC.
BERARDI ELECTRICAL CONTRACTING, INC.
3.7(
71
)

Serving Islip, NY and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Amazing service received by Berardi. Contacted them in the evening and they responded in a few minutes and came over same evening to look at my broken gas heating system. Very knowledgeable and was quick in getting the parts needed and unit up and running again. Very impressed with them coming out evening and the following Sunday where many companies are closed. Highly recommend this company that goes above and beyond."
Lido beach NY
Lido beach NY
Lido beach NY
Response time6 hrs
Response rate91%
6 neighbors recently requested a quote
Avatar for Handy Hubby
Handy Hubby
3.3(
43
)

Serving Islip, NY and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I called and happened to get Steve right away and since he was in the area he came right over. He examined the blind to determine if it could be fixed without a replacement piece and since it could he did the repairt quickly and efficiently. He was reasonable and very pleasant."
Stand Alone  Structure
Painted wood porch
Large deck and covered area
Large deck and covered area
Before - Pad removed

+5

Recommended by78%of homeowners
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FAQs for water heater repair or service projects in Islip, NY

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Islip, NY homeowners’ guide to water heater repair or services

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