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Find Water heater repair or service pros in Greenlawn

DPH, Inc

5.00(
1
)
Approved Pro

DPH, Inc

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Company, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. I do charge trip fee depending where location is at , can discuss b4 service.

"They are dedicated , timely and professional. They provided quality work."

Nicola R on August 2021

Company, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. I do charge trip fee depending where location is at , can discuss b4 service.

"They are dedicated , timely and professional. They provided quality work."

Nicola R on August 2021


Avatar for Integrated Plumbing & Heating

Integrated Plumbing & Heating

4.80(
64
)
Approved Pro

Integrated Plumbing & Heating

4.80(
64
)
Approved Pro
Super Service Award
Customers say: True professional
15 years of experience
Free onsite estimate

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"This team installed an oil fired boiler last month. I didn't want to give a review until our oil company said it passed their inspection which it did. They came promptly. It took all day to install. They got it working. We did have a hiccup but they came and took care of it. I was nervous to use them but so glad we chose them. Roberto and his team were great. They know their stuff. So yes I highly recommend them. See the old and new."

Evelyn M on December 2025

We're dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"This team installed an oil fired boiler last month. I didn't want to give a review until our oil company said it passed their inspection which it did. They came promptly. It took all day to install. They got it working. We did have a hiccup but they came and took care of it. I was nervous to use them but so glad we chose them. Roberto and his team were great. They know their stuff. So yes I highly recommend them. See the old and new."

Evelyn M on December 2025


Avatar for ANQOR PLUMBING & HEATING INC.

ANQOR PLUMBING & HEATING INC.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

ANQOR PLUMBING & HEATING INC.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

At ANQOR PLUMBING & HEATING INC. we pride our ourselves in quality, value, and service! We are experts in our trade and will do our best to keep you as educated as we can on your particular project. We look forward to earning your business! When you contact us, you'll be given the exceptional customer service you deserve, including free quotes, up-front pricing, and no hidden fees. These benefits are provided to our clients in order to show that our company genuinely cares about customer satisfaction. Give us a call today to schedule your free estimate!

At ANQOR PLUMBING & HEATING INC. we pride our ourselves in quality, value, and service! We are experts in our trade and will do our best to keep you as educated as we can on your particular project. We look forward to earning your business! When you contact us, you'll be given the exceptional customer service you deserve, including free quotes, up-front pricing, and no hidden fees. These benefits are provided to our clients in order to show that our company genuinely cares about customer satisfaction. Give us a call today to schedule your free estimate!


Avatar for Energywise, Inc.

Energywise, Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Energywise, Inc.

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
41 years of experience
Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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.

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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.


All Island Heating & Air

4.14(
56
)
Approved Pro

All Island Heating & Air

4.14(
56
)
Approved Pro
Customers say: Super punctual
89 local quotes requested
41 years of experience

All Island Heating & Air is your premiere business for all your residential or commercial HVAC needs in the Bethpage, NY area. With more than 30 years of experience, we pride ourselves on the quality of workmanship we provide to our customers. Please give us a call today! Central A/C Tune Up $89.99 !! * I do not service oil boilers or furnaces -- GAS ONLY *

"They did a very professional installation job but i did have to deal with the cleanup inside & out."

Leslie M on August 2025

All Island Heating & Air is your premiere business for all your residential or commercial HVAC needs in the Bethpage, NY area. With more than 30 years of experience, we pride ourselves on the quality of workmanship we provide to our customers. Please give us a call today! Central A/C Tune Up $89.99 !! * I do not service oil boilers or furnaces -- GAS ONLY *

"They did a very professional installation job but i did have to deal with the cleanup inside & out."

Leslie M on August 2025


Avatar for Herber Plumbing & Heating Corp.

Herber Plumbing & Heating Corp.

4.66(
206
)
Approved Pro

Herber Plumbing & Heating Corp.

4.66(
206
)
Approved Pro
Customers say: True professional
55 years of experience
Free onsite estimate

Herber Plumbing & Heating Corp. has been trusted and recommended since 1971, and recognized for our superb service. We are family owned and operated, with guaranteed great service. Our company specializes in all types of work, but especially: Plumbing, Gas Heating, Drain Cleaning, Oil to Gas Conversions, NYS RPZ Testing to name a few things. Call & schedule your appointment today! 631-666-9315

"Didn't show up on day scheduled, failed to call. Replaced ~$100 part in about a half hour. Charge was $595"

Bruce M on April 2025

Herber Plumbing & Heating Corp. has been trusted and recommended since 1971, and recognized for our superb service. We are family owned and operated, with guaranteed great service. Our company specializes in all types of work, but especially: Plumbing, Gas Heating, Drain Cleaning, Oil to Gas Conversions, NYS RPZ Testing to name a few things. Call & schedule your appointment today! 631-666-9315

"Didn't show up on day scheduled, failed to call. Replaced ~$100 part in about a half hour. Charge was $595"

Bruce M on April 2025


C&A Mechanical

4.77(
69
)
Approved Pro

C&A Mechanical

4.77(
69
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
29 years of experience

Here at C&A Mechanical, we have more than 30 years of heating and air conditioning experience. We provide quality work and continue our education and knowledge about the industry. Give us a call.

"As a senior citizen I have dealt with many contractors/tradespeople in my lifetime and a few of them have disappointed me but overall have been satisfied and then there are a few in my "TOP 10 LIST" who were EXCEPTIONAL & OUTSTANDING which is rare these days. So, Craig at C&A Mechanical and his team are indeed EXCEPTIONAL!!! Craig the owner personally came to my home to review the damage caused by a faulty tank as I had no heat or hot water and promised it would be fixed the next day! As promised his team member Alex was promptly at my home the very next morning! Also, his quote was "Fair & Reasonable" and at the end of the job it was LESS $$$ then the quote because it required less time than estimated. NOBODY does that these days! So I HIGHLY recommend C & A Mechanical for your HVAC needs! Bobby A"

bobby A on October 2025

Here at C&A Mechanical, we have more than 30 years of heating and air conditioning experience. We provide quality work and continue our education and knowledge about the industry. Give us a call.

"As a senior citizen I have dealt with many contractors/tradespeople in my lifetime and a few of them have disappointed me but overall have been satisfied and then there are a few in my "TOP 10 LIST" who were EXCEPTIONAL & OUTSTANDING which is rare these days. So, Craig at C&A Mechanical and his team are indeed EXCEPTIONAL!!! Craig the owner personally came to my home to review the damage caused by a faulty tank as I had no heat or hot water and promised it would be fixed the next day! As promised his team member Alex was promptly at my home the very next morning! Also, his quote was "Fair & Reasonable" and at the end of the job it was LESS $$$ then the quote because it required less time than estimated. NOBODY does that these days! So I HIGHLY recommend C & A Mechanical for your HVAC needs! Bobby A"

bobby A on October 2025


Avatar for Island Pipes LLC

Island Pipes LLC

5.00(
24
)
Approved Pro

Island Pipes LLC

5.00(
24
)
Approved Pro
4 years of experience
Free onsite estimate

Island Pipes is a locally owned residential drain and sewer cleaning service serving homeowners throughout Long Island. We specialize in clogged drain removal, main line cleaning, and preventative drain maintenance, with a focus on quality workmanship, honest diagnostics, and reliable communication. Permit-required plumbing or heating work is referred to licensed professionals. From leaks, clogs, and fixture repairs to hot water and heating system issues, we take the time to properly diagnose problems and clearly explain available solutions. Our goal is to deliver dependable, long-term results?not temporary fixes. We respect your home by showing up on time, working cleanly, and standing behind our work. Whether you need routine service or help with an unexpected plumbing or heating issue, Island Pipes is committed to providing straightforward, professional service you can trust.

"Called Andre from Island Pipes as I had a leak under my sink. He came as promised that evening. I had a tangled mess from previous DIY fixes that I did myself. Old house 75 years of corroded pipes gunk etc. He explained and showed all work that needed to be done. Very patient and very personable. Fixed leak and went above and beyond . Did a pristine job! Good plumbers are like gold. Highly recommend Andre from Island Pipes!"

Laura A on February 2026

Island Pipes is a locally owned residential drain and sewer cleaning service serving homeowners throughout Long Island. We specialize in clogged drain removal, main line cleaning, and preventative drain maintenance, with a focus on quality workmanship, honest diagnostics, and reliable communication. Permit-required plumbing or heating work is referred to licensed professionals. From leaks, clogs, and fixture repairs to hot water and heating system issues, we take the time to properly diagnose problems and clearly explain available solutions. Our goal is to deliver dependable, long-term results?not temporary fixes. We respect your home by showing up on time, working cleanly, and standing behind our work. Whether you need routine service or help with an unexpected plumbing or heating issue, Island Pipes is committed to providing straightforward, professional service you can trust.

"Called Andre from Island Pipes as I had a leak under my sink. He came as promised that evening. I had a tangled mess from previous DIY fixes that I did myself. Old house 75 years of corroded pipes gunk etc. He explained and showed all work that needed to be done. Very patient and very personable. Fixed leak and went above and beyond . Did a pristine job! Good plumbers are like gold. Highly recommend Andre from Island Pipes!"

Laura A on February 2026


Avatar for Advanced Professional Management, LLC

Advanced Professional Management, LLC

4.20(
869
)
Approved Pro

Advanced Professional Management, LLC

4.20(
869
)
Approved Pro
Customers say: Quality work
27 years of experience
Emergency services offered

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023


Avatar for Universe Home Services, Inc.

Universe Home Services, Inc.

4.50(
363
)
Approved Pro

Universe Home Services, Inc.

4.50(
363
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
67 local quotes requested

Since 1954, Universe Home Services, inc., has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you are dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you are completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations.

"Amazing service!!! "

Rene C on December 2025

Since 1954, Universe Home Services, inc., has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you are dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you are completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations.

"Amazing service!!! "

Rene C on December 2025

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FAQs for water heater repair or service projects in Greenlawn, 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 Greenlawn, 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.