Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in East Hampton, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Tankless water heater installers in East Hampton

Avatar for Mayjac Plumbing, Inc.

Mayjac Plumbing, Inc.

4.92(
13
)
•Approved Pro

Mayjac Plumbing, Inc.

4.92(
13
)
•Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

At MayJac Plumbing Inc. we're dedicated to providing our clients with the very best service, installation, and repairs for all phases of their plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail we put into each of the projects we're involved with. Our goal at MayJac is to maintain a relationship with every customer for life. MayJac Plumbing Inc. is fully licensed and insured. We have over 18 years of experience. Call us today at (631) 909-1829 to discuss your all plumbing needs!

"Joe was great."

Nicholas U on June 2024

At MayJac Plumbing Inc. we're dedicated to providing our clients with the very best service, installation, and repairs for all phases of their plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail we put into each of the projects we're involved with. Our goal at MayJac is to maintain a relationship with every customer for life. MayJac Plumbing Inc. is fully licensed and insured. We have over 18 years of experience. Call us today at (631) 909-1829 to discuss your all plumbing needs!

"Joe was great."

Nicholas U on June 2024

A Touch of Class Plumbing & Heating, Inc.

5.00(
8
)
•Approved Pro

A Touch of Class Plumbing & Heating, Inc.

5.00(
8
)
•Approved Pro
Super Service Award
Customers say: Quick response
24 local quotes requested
24 years of experience

With over 23 years of a local Nassau County business, my company A Touch of Class Plumbing and Heating, Inc, is your experienced best choice for all of your residential and commercial plumbing and boiler needs! I welcome all sizes of requests and enjoy installations, replacements and service work. I am an owner operated company so you can feel security and have the quality of a licensed plumber being on every job. My attention to detail and focus on customer service will set your experience with my company and your finished work apart from what any other businesses offer! I welcome maintenance, upgrade, replacement and emergency service calls 24 hours a day. Please call me, James, for a free quote today!

"Shout out to Jim! Great communicator, responds quickly, punctual and got the job done efficiently. In a world where such qualities are becoming rare, Jim stands out as a true professional. Highly recommended!! "

Anthony P on October 2025

With over 23 years of a local Nassau County business, my company A Touch of Class Plumbing and Heating, Inc, is your experienced best choice for all of your residential and commercial plumbing and boiler needs! I welcome all sizes of requests and enjoy installations, replacements and service work. I am an owner operated company so you can feel security and have the quality of a licensed plumber being on every job. My attention to detail and focus on customer service will set your experience with my company and your finished work apart from what any other businesses offer! I welcome maintenance, upgrade, replacement and emergency service calls 24 hours a day. Please call me, James, for a free quote today!

"Shout out to Jim! Great communicator, responds quickly, punctual and got the job done efficiently. In a world where such qualities are becoming rare, Jim stands out as a true professional. Highly recommended!! "

Anthony P on October 2025

Avatar for Grant Heating & Cooling, Inc.

Grant Heating & Cooling, Inc.

4.83(
66
)
•Approved Pro

Grant Heating & Cooling, Inc.

4.83(
66
)
•Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
46 local quotes requested

Family owned and operated since 1969, Grant Heating & Cooling is a knowledgeable and dependable resource for meeting all your comfort needs. Contact us for installation, maintenance or service

"I contracted with Grant Heating & Cooling Inc. to install HVAC system in my home in the spring of 2024. They were very professional and did a very good job. In the winter of 2025 I had a minor problem with one of the Mitsubishi heat pump system units. The company was quick to troubleshoot the situation. The technicians were courteous, knowledgeable about the system and thorough. It required several visits to diagnose the problem and fix it. The manager, Nick was very responsive to the situation which required bringing out an expert from Mitsubishi. All of this work was covered under my warranty. The problem was fixed and I could not speak highly enough about the company’s policies and customer service. I would highly recommend them for all facets of their work and standing behind their installations. I am very happy to be working with them for my continued maintenance. They are an excellent company. Sincerely, Susan Coursey"

Susan C on May 2025

Family owned and operated since 1969, Grant Heating & Cooling is a knowledgeable and dependable resource for meeting all your comfort needs. Contact us for installation, maintenance or service

"I contracted with Grant Heating & Cooling Inc. to install HVAC system in my home in the spring of 2024. They were very professional and did a very good job. In the winter of 2025 I had a minor problem with one of the Mitsubishi heat pump system units. The company was quick to troubleshoot the situation. The technicians were courteous, knowledgeable about the system and thorough. It required several visits to diagnose the problem and fix it. The manager, Nick was very responsive to the situation which required bringing out an expert from Mitsubishi. All of this work was covered under my warranty. The problem was fixed and I could not speak highly enough about the company’s policies and customer service. I would highly recommend them for all facets of their work and standing behind their installations. I am very happy to be working with them for my continued maintenance. They are an excellent company. Sincerely, Susan Coursey"

Susan C on May 2025

Tri Seasonal Plumbing, Inc.

4.64(
14
)
•Approved Pro

Tri Seasonal Plumbing, Inc.

4.64(
14
)
•Approved Pro
Free onsite estimate
Emergency services offered

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.

"I Had my new gas stove delivered, they installed my new appliance as requested. "

Tiffany M on December 2025

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.

"I Had my new gas stove delivered, they installed my new appliance as requested. "

Tiffany M on December 2025

Avatar for BERARDI ELECTRICAL CONTRACTING, INC.

BERARDI ELECTRICAL CONTRACTING, INC.

4.39(
54
)
•Approved Pro

BERARDI ELECTRICAL CONTRACTING, INC.

4.39(
54
)
•Approved Pro
Customers say: Terrific value
26 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Very professional, knowledgeable and trustworthy"

Catherine S on December 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Very professional, knowledgeable and trustworthy"

Catherine S on December 2025

Avatar for Herber Plumbing & Heating Corp.

Herber Plumbing & Heating Corp.

4.74(
185
)
•Approved Pro

Herber Plumbing & Heating Corp.

4.74(
185
)
•Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
33 local quotes requested

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

Avatar for South Shore Plumbing and Heating, Inc.

South Shore Plumbing and Heating, Inc.

4.94(
16
)

South Shore Plumbing and Heating, Inc.

4.94(
16
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Welcome to South Shore Plumbing and Heating, Inc.! With over 25 years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. South Shore Plumbing and Heating, Inc. We welcome your questions and thank you for your interest!

"Willing to work with schedule to make appointment Technician ran late but other then that he quickly and efficiently did the job"

Jennifer K on December 2024

Welcome to South Shore Plumbing and Heating, Inc.! With over 25 years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. South Shore Plumbing and Heating, Inc. We welcome your questions and thank you for your interest!

"Willing to work with schedule to make appointment Technician ran late but other then that he quickly and efficiently did the job"

Jennifer K on December 2024

Avatar for Countywide Tile

Countywide Tile

5.00(
2
)

Countywide Tile

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

The Countywide Tile Experience: From Start to Finish From a simple bathroom vanities to doing a full-scale home renovation, Countywide Tile is the complete “one-stop” source for all your needs. We specialize in kitchens, baths, built-ins, butler’s pantries, wall units, bars, home office, mud and laundry rooms, fire place surrounds and so much more. We are a service driven team at Countywide Tile; we have an amazing reputation for our outstanding design team, quality and workmanship. Offering our clients a truly one of a kind experience with visual aids to truly bring your projects to life right before your eyes. We feature a wide range of cabinetry, counter top materials, the leading manufactures in fixture and hardware and products to suit every taste, project size and budget.

The Countywide Tile Experience: From Start to Finish From a simple bathroom vanities to doing a full-scale home renovation, Countywide Tile is the complete “one-stop” source for all your needs. We specialize in kitchens, baths, built-ins, butler’s pantries, wall units, bars, home office, mud and laundry rooms, fire place surrounds and so much more. We are a service driven team at Countywide Tile; we have an amazing reputation for our outstanding design team, quality and workmanship. Offering our clients a truly one of a kind experience with visual aids to truly bring your projects to life right before your eyes. We feature a wide range of cabinetry, counter top materials, the leading manufactures in fixture and hardware and products to suit every taste, project size and budget.

Avatar for Elizabeth Appliance Repair

Elizabeth Appliance Repair

No reviews yet

Elizabeth Appliance Repair

No reviews yet
25 years of experience

Elizabeth Appliance Repair has been receiving enormous and continuous support from clients who keep on trusting our appliance service. We gained their trust because the quality of every job we do, may it be repair, maintenance or installation, is always of top quality. It’s also timely and the cost is fair.

Elizabeth Appliance Repair has been receiving enormous and continuous support from clients who keep on trusting our appliance service. We gained their trust because the quality of every job we do, may it be repair, maintenance or installation, is always of top quality. It’s also timely and the cost is fair.

Avatar for A G Reliable Remodeling

A G Reliable Remodeling

4.29(
7
)

A G Reliable Remodeling

4.29(
7
)
Customers say: True professional
27 years of experience

Reliable Remodeling is a full service remodeling company in business for over 20 years comitted to great service, great value and excellent work.

"Did a good job on the kitchen cabinets and walls came out good new floor installed came out good kitchen window was installed fine but the wood trim very disappointed when removing wood trim to replace window installation was good but when trim was put back on what a disappointment they put the trim on and siliconed the openings so mwater and air would not come in silicone all over the wood nail holes were covered with silicone instead of wood filler wife and I were very disappointed he was suppose to clean and remove soot from wood and then refinish per insurance estimate he told me he did not put it in his estimate so in order to fix it I would have to pay to have it done the quality of the trim is not professional work see enclosed photos"

Homeowner on May 2022

Reliable Remodeling is a full service remodeling company in business for over 20 years comitted to great service, great value and excellent work.

"Did a good job on the kitchen cabinets and walls came out good new floor installed came out good kitchen window was installed fine but the wood trim very disappointed when removing wood trim to replace window installation was good but when trim was put back on what a disappointment they put the trim on and siliconed the openings so mwater and air would not come in silicone all over the wood nail holes were covered with silicone instead of wood filler wife and I were very disappointed he was suppose to clean and remove soot from wood and then refinish per insurance estimate he told me he did not put it in his estimate so in order to fix it I would have to pay to have it done the quality of the trim is not professional work see enclosed photos"

Homeowner on May 2022

...
Showing 1-10 of 1008

The East Hampton, NY homeowners’ guide to tankless water heater installations

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

See all articles