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Water heater installers and replacers in Shirley

Avatar for Gas Heat Services
Gas Heat Services
4 Hallett Court
4.88(
20
)
Approved Pro
Gas Heat Services
4 Hallett Court
4.88(
20
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Gas Heat Services, you will notice that we are particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Gary was very respectful, punctual, and left the area very clean when he was finished. Everything was running smooth after the work was completed. Gary is retired from National Grid very knowledgeable , and personable. He is a gentleman and took the time to explain my system to me. I will be using him from now on and will recommend him to friends. His prices were fair and he was on time. I would definitely recommend!"

JACKIE C on April 2024

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Gas Heat Services, you will notice that we are particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Gary was very respectful, punctual, and left the area very clean when he was finished. Everything was running smooth after the work was completed. Gary is retired from National Grid very knowledgeable , and personable. He is a gentleman and took the time to explain my system to me. I will be using him from now on and will recommend him to friends. His prices were fair and he was on time. I would definitely recommend!"

JACKIE C on April 2024


Avatar for BENNETT PLUMBING AND HEATING LLC
BENNETT PLUMBING AND HEATING LLC
27 Malone Ave
5.00(
1
)
Approved Pro
BENNETT PLUMBING AND HEATING LLC
27 Malone Ave
5.00(
1
)
Approved Pro
12 local quotes requested
5 years of experience

Bennett Plumbing and Heating LLC, based in New York, brings over 17 years of expert experience in delivering top-quality plumbing and heating services. Known for their dedication to customer satisfaction, they specialize in residential and commercial plumbing repairs, installations, and heating solutions. The company prides itself on its skilled team of licensed professionals who are equipped to handle everything from routine maintenance to complex system overhauls. With a strong commitment to reliability, efficiency, and safety, Bennett Plumbing and Heating is trusted by local communities for providing long-lasting, energy-efficient solutions. Whether you're dealing with a leaky pipe or need a new heating system, they offer prompt, affordable, and high-quality service tailored to meet each client’s specific needs. As a family-owned business, their focus is on building long-term relationships and ensuring comfort for all their clients.

Bennett Plumbing and Heating LLC, based in New York, brings over 17 years of expert experience in delivering top-quality plumbing and heating services. Known for their dedication to customer satisfaction, they specialize in residential and commercial plumbing repairs, installations, and heating solutions. The company prides itself on its skilled team of licensed professionals who are equipped to handle everything from routine maintenance to complex system overhauls. With a strong commitment to reliability, efficiency, and safety, Bennett Plumbing and Heating is trusted by local communities for providing long-lasting, energy-efficient solutions. Whether you're dealing with a leaky pipe or need a new heating system, they offer prompt, affordable, and high-quality service tailored to meet each client’s specific needs. As a family-owned business, their focus is on building long-term relationships and ensuring comfort for all their clients.


Avatar for Energywise, Inc.
Energywise, Inc.
2231 5th Avenue
New on HomeAdvisorNew on Angi
Approved Pro
Energywise, Inc.
2231 5th Avenue
New on AngiNew on HomeAdvisor
Approved Pro
40 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.


Eyeris Industries LTD
PO Box 1112
New on HomeAdvisorNew on Angi
Approved Pro
Eyeris Industries LTD
PO Box 1112
New on AngiNew on HomeAdvisor
Approved Pro
19 years of experience

At Eyeris Industries LTD, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!

At Eyeris Industries LTD, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!


Avatar for Proto Plumbing & Heating
Proto Plumbing & Heating
188 Hubbard Ave
3.88(
4
)
Approved Pro
Proto Plumbing & Heating
188 Hubbard Ave
3.88(
4
)
Approved Pro
3 years of experience
Free onsite estimate

With years of experience, Proto Plumbing and Heating 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. Call us today!

"They did not complete the effective job that they said they going to do."

Chasiki B on October 2022

With years of experience, Proto Plumbing and Heating 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. Call us today!

"They did not complete the effective job that they said they going to do."

Chasiki B on October 2022


Avatar for 1-800-Plumber +Air of Central Long Island
1-800-Plumber +Air of Central Long Island
36 Gazza Boulevard
5.00(
6
)
Approved Pro
1-800-Plumber +Air of Central Long Island
36 Gazza Boulevard
5.00(
6
)
Approved Pro
Customers say: Quick response
186 local quotes requested
1 years of experience

1-800-Plumber + Air of Central Long Island is focused on being the BEST! It's not about being better than everyone else, instead our focus is on providing you with the fast, dependable plumbing and emergency services when you need it most. Our goal is to give you the BEST experience you have ever received from a service based business.

"Greg fixed dryer vent clog, bathroom sink leak, and outdoor hose spigot drip to perfection! Greg was very professional, used shoe covers, took care not to damage any property, and left everything spotless. As the homeowner, the service was outstanding and the price reasonable. Catherine Martin"

Catherine M on April 2025

1-800-Plumber + Air of Central Long Island is focused on being the BEST! It's not about being better than everyone else, instead our focus is on providing you with the fast, dependable plumbing and emergency services when you need it most. Our goal is to give you the BEST experience you have ever received from a service based business.

"Greg fixed dryer vent clog, bathroom sink leak, and outdoor hose spigot drip to perfection! Greg was very professional, used shoe covers, took care not to damage any property, and left everything spotless. As the homeowner, the service was outstanding and the price reasonable. Catherine Martin"

Catherine M on April 2025


Avatar for Varsity Home Service Company, Inc.
Varsity Home Service Company, Inc.
1610 Ocean Avenue
4.78(
186
)
Approved Pro
Varsity Home Service Company, Inc.
1610 Ocean Avenue
4.78(
186
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
430 local quotes requested

Practice makes perfect, and Varsity has been at it for over half a century! What began with a Navy veteran’s simple dream — to teach the value of honest, hands-on work to his children — has grown into one of Long Island’s most trusted resource for plumbing, heating and air conditioning services. Varsity’s mission has always been clear: to serve our neighbors with integrity, solve home service challenges with innovative solutions, and provide lasting results. Our dedicated crew is background-checked, rigorously trained in the latest technology, and excited to exceed your expectations. Above all Varsity is here to EARN your trust—not just for today, but for years to come. Let’s tackle your home service needs with the quality and care you deserve!

"Prompt and professional. Thanks."

Justin S on May 2025

Practice makes perfect, and Varsity has been at it for over half a century! What began with a Navy veteran’s simple dream — to teach the value of honest, hands-on work to his children — has grown into one of Long Island’s most trusted resource for plumbing, heating and air conditioning services. Varsity’s mission has always been clear: to serve our neighbors with integrity, solve home service challenges with innovative solutions, and provide lasting results. Our dedicated crew is background-checked, rigorously trained in the latest technology, and excited to exceed your expectations. Above all Varsity is here to EARN your trust—not just for today, but for years to come. Let’s tackle your home service needs with the quality and care you deserve!

"Prompt and professional. Thanks."

Justin S on May 2025


Avatar for Aces Plumbing Heating and Cooling LLC
Aces Plumbing Heating and Cooling LLC
60 Hudson Ave
4.94(
16
)
Approved Pro
Aces Plumbing Heating and Cooling LLC
60 Hudson Ave
4.94(
16
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

With over 25 years of experience Ace's Plumbing, Heating & Cooling is your trusted choice for all of your contracting needs. We take pride in our work and can assure your satisfaction with your project. Give us a call today for a free estimate!

"Aces answered me immediately, came within an hour & worked hard on my basement leaks. Respectful, courteous & patient- they explained everything. I would absolutely recommend the Aces!"

Corinne T on May 2025

With over 25 years of experience Ace's Plumbing, Heating & Cooling is your trusted choice for all of your contracting needs. We take pride in our work and can assure your satisfaction with your project. Give us a call today for a free estimate!

"Aces answered me immediately, came within an hour & worked hard on my basement leaks. Respectful, courteous & patient- they explained everything. I would absolutely recommend the Aces!"

Corinne T on May 2025


Avatar for 1-800-Plumber + Air of Babylon
1-800-Plumber + Air of Babylon
36 Gazza Boulevard
5.00(
10
)
Approved Pro
1-800-Plumber + Air of Babylon
36 Gazza Boulevard
5.00(
10
)
Approved Pro
Customers say: Quick response
55 local quotes requested
1 years of experience

1-800-Plumber + Air of Babylon is focused on being the BEST! It's not about being better than everyone else, instead our focus is on providing you with the fast, dependable plumbing and emergency services when you need it most. Our goal is to give you the BEST experience you have ever received from a service based business.

"Had 1800 plumber come out to fix a leaking valve in my basement. Super convenient and friendly! 10/10"

Mike M on April 2025

1-800-Plumber + Air of Babylon is focused on being the BEST! It's not about being better than everyone else, instead our focus is on providing you with the fast, dependable plumbing and emergency services when you need it most. Our goal is to give you the BEST experience you have ever received from a service based business.

"Had 1800 plumber come out to fix a leaking valve in my basement. Super convenient and friendly! 10/10"

Mike M on April 2025


Avatar for RDS Plumbing and Heating
RDS Plumbing and Heating
1303 Waverly Avenue
4.92(
77
)
Approved Pro
RDS Plumbing and Heating
1303 Waverly Avenue
4.92(
77
)
Approved Pro
Customers say: True professional
8 years of experience

Please visit us at www.rdsplumbingheating.com for more info. We pride our company on reliability, great communication, integrity, quality work and beating our competitors pricing on all work. Being experts in the plumbing and heating trade for over 20 years we can quickly diagnose your issue and make the necessary repairs or installations to remedy the problem. This gives us the ability to be competitively priced, ensuring your problem is fixed the first time ! RDS looks forward to gaining you as life long customer. Give us a call 631-590-0561

"Rich reached out to me immediately after the job was posted. Within 15 minutes, I contracted the job with him. He arrived the following day and kept in contact with me regarding his arrival. He was professional and relatable. The job was completed within 30 minutes and I am very satisfied. I will definitely be calling him for several other plumbing projects."

Kristine A on May 2025

Please visit us at www.rdsplumbingheating.com for more info. We pride our company on reliability, great communication, integrity, quality work and beating our competitors pricing on all work. Being experts in the plumbing and heating trade for over 20 years we can quickly diagnose your issue and make the necessary repairs or installations to remedy the problem. This gives us the ability to be competitively priced, ensuring your problem is fixed the first time ! RDS looks forward to gaining you as life long customer. Give us a call 631-590-0561

"Rich reached out to me immediately after the job was posted. Within 15 minutes, I contracted the job with him. He arrived the following day and kept in contact with me regarding his arrival. He was professional and relatable. The job was completed within 30 minutes and I am very satisfied. I will definitely be calling him for several other plumbing projects."

Kristine A on May 2025

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Water heater installations and replacements FAQs

You'll need an expansion tank if your home has a closed water system, which is standard in newer homes or those with backflow preventers or pressure regulators. Expanding hot water has nowhere to go in closed systems, creating potentially damaging pressure. The expansion tank provides space for this expanded water, protecting your plumbing system and water heater from premature failure. Many local building codes now require expansion tanks, and some water heater warranties may be voided without one.

For a standard 50-gallon water heater, a two-gallon expansion tank is sufficient. This sizing assumes normal household water pressure between 40 and 60 psi. If your home has higher water pressure (60 to 80 psi), consider upgrading to a slightly larger tank for added protection. The expansion tank's purpose is to accommodate the increased volume that occurs when cold water heats up, which is proportional to your water heater's capacity.

Watch for signs like dripping water around the tank, fluctuating water pressure throughout your home, or unusual noises in your plumbing system. A properly functioning expansion tank should feel light when tapped on the bottom—if it feels heavy or waterlogged, the internal bladder has likely failed. Other indicators include frequent triggering of your temperature and pressure relief valve, visible corrosion on the tank, or unexplained increases in your water bill, suggesting hidden leaks.

Most expansion tanks have a service life of five to 10 years, though some may last up to 12 years or more with proper maintenance. Factors affecting lifespan include water quality, system pressure, installation quality, and tank construction. Hard water areas often see shorter lifespans due to mineral buildup. Regular maintenance checks can help identify potential issues before complete failure. When your water heater is due for replacement, it's wise to replace the expansion tank simultaneously, even if it hasn't failed yet.

A 30-gallon water heater needs an expansion tank if your home has a closed plumbing system. The need for an expansion tank is determined by your plumbing system type rather than water heater size. Even smaller water heaters create thermal expansion when heating water. If your home has a backflow preventer, pressure regulator, or check valve on the main water line, you have a closed system that requires an expansion tank. Check your local plumbing codes, as many jurisdictions now mandate expansion tanks regardless of water heater size.

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