Top-rated water heater installers and replacers.

Get matched with top water heater installers and replacers in your area

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.

Water heater installers and replacers in Southbury

Avatar for Kashmiri Plumbing
Kashmiri Plumbing
61 Locust St
4.70(
10
)
Approved Pro
Kashmiri Plumbing
61 Locust St
4.70(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

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 task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Did the work"

Kayla S on July 2023

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 task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Did the work"

Kayla S on July 2023


Newtown Plumbing, LLC
53 Sugar St
4.89(
9
)
Approved Pro
Newtown Plumbing, LLC
53 Sugar St
4.89(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

Newtown Plumbing, LLC 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.

"Dan was wonderful. Professional, on time, kind and quality workmanship. We would high highly recommend! Best experience ever. Will definitely use again and will recommend to everyone we know!"

linda M on October 2022

Newtown Plumbing, LLC 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.

"Dan was wonderful. Professional, on time, kind and quality workmanship. We would high highly recommend! Best experience ever. Will definitely use again and will recommend to everyone we know!"

linda M on October 2022


Avatar for E and R Mechanical
E and R Mechanical
410 W River St
4.73(
238
)
Approved Pro
E and R Mechanical
410 W River St
4.73(
238
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
82 local quotes requested

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big, or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business.

"They were very professional, punctual, and overall great!"

julius f on May 2025

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big, or small. We are experts in our trade, and will always keep you educated on your particular task or project. We look forward to earning your business.

"They were very professional, punctual, and overall great!"

julius f on May 2025


All State Plumbing Pros, LLC
39 Kenosia Avenue
4.64(
50
)
Approved Pro
All State Plumbing Pros, LLC
39 Kenosia Avenue
4.64(
50
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
13 local quotes requested

At All State Plumbing Pros, we believe in providing the best plumbing service in the area. Our team is fully licensed and insured to give our clients peace of mind during every visit.

"Great job. Prompt found the problem and fixed it"

J J on June 2024

At All State Plumbing Pros, we believe in providing the best plumbing service in the area. Our team is fully licensed and insured to give our clients peace of mind during every visit.

"Great job. Prompt found the problem and fixed it"

J J on June 2024


Cordova Plumbing
1432 Old Waterbury Rd #13
5.00(
3
)
Approved Pro
Cordova Plumbing
1432 Old Waterbury Rd #13
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 local quotes requested

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 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. Whether you need a simple faucet installation or complete sewer line replacement, we offer a wide range of residential and commercial plumbing services to meet your needs. We continually strive to exceed expectations by ensuring that each client receives the very best service.

"I have been using them for almost eighteen to nineteen years and he has been very good for me. I never had any problem with them. They were always on time."

Homeowner on October 2020

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 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. Whether you need a simple faucet installation or complete sewer line replacement, we offer a wide range of residential and commercial plumbing services to meet your needs. We continually strive to exceed expectations by ensuring that each client receives the very best service.

"I have been using them for almost eighteen to nineteen years and he has been very good for me. I never had any problem with them. They were always on time."

Homeowner on October 2020


Quinn Plumbing & Heating, LLC
57 Summer Lane
4.71(
179
)
Approved Pro
Quinn Plumbing & Heating, LLC
57 Summer Lane
4.71(
179
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
28 years of experience

We specialize in emergency plumbing service such as clogged drains, garbage disposal repair, refrigerator service, and broken pipe repair. Our expertise also includes water heater repair and installation. Our skilled team will respond promptly to any malfunction you have and quality service is our number one priority.

"Tom called promptly after I posted the project at 7PM Monday night. By Tuesday at 3PM I had a new water heater installed and working, and at a good price. Very professional. They arrived early and there were no (bad) surprises."

William L on March 2024

We specialize in emergency plumbing service such as clogged drains, garbage disposal repair, refrigerator service, and broken pipe repair. Our expertise also includes water heater repair and installation. Our skilled team will respond promptly to any malfunction you have and quality service is our number one priority.

"Tom called promptly after I posted the project at 7PM Monday night. By Tuesday at 3PM I had a new water heater installed and working, and at a good price. Very professional. They arrived early and there were no (bad) surprises."

William L on March 2024


Avatar for Bluebird Day Properties
Bluebird Day Properties
877 Baldwin Road
5.00(
7
)
Approved Pro
Bluebird Day Properties
877 Baldwin Road
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
755 local quotes requested

At Bluebird Day Properties we make your remodeling dreams come true! Whether its's a new kitchen, an updated bathroom or an entire addition that you're dreaming of, we have you covered. We also provide superior interior and exterior painting services. We pride ourselves on timely communication and will keep you informed through every step of your project.

"Annitta and her team went above and beyond to give our house a much needed update. In our kitchen they painted the cabinets, replaced hardware, and added a backsplash. Our bathroom was the biggest project which included a complete gut, new tile, vanity, light fixtures, and painting. Her team got the job done in a timely manner and were very easy to get in touch with. I highly recommend hiring them for your next project, no matter how big or small!"

Rebecca W on November 2024

At Bluebird Day Properties we make your remodeling dreams come true! Whether its's a new kitchen, an updated bathroom or an entire addition that you're dreaming of, we have you covered. We also provide superior interior and exterior painting services. We pride ourselves on timely communication and will keep you informed through every step of your project.

"Annitta and her team went above and beyond to give our house a much needed update. In our kitchen they painted the cabinets, replaced hardware, and added a backsplash. Our bathroom was the biggest project which included a complete gut, new tile, vanity, light fixtures, and painting. Her team got the job done in a timely manner and were very easy to get in touch with. I highly recommend hiring them for your next project, no matter how big or small!"

Rebecca W on November 2024


Avatar for Rodris Rooter LLC
Rodris Rooter LLC
1450 Washington Boulevard
5.00(
7
)
Approved Pro
Rodris Rooter LLC
1450 Washington Boulevard
5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
115 local quotes requested

My focus is to provide a professional and affordable service for all customers based on our expirienced technicians and high quality equipments ready to take care of any drain problem or any emergency 24/7

"It went very well. Very professional and courteous. I would contact them again"

Ralph L on January 2025

My focus is to provide a professional and affordable service for all customers based on our expirienced technicians and high quality equipments ready to take care of any drain problem or any emergency 24/7

"It went very well. Very professional and courteous. I would contact them again"

Ralph L on January 2025


Northeast Painting and Home Improvement, LLC
20 Spector Rd
4.25(
20
)
Approved Pro
Northeast Painting and Home Improvement, LLC
20 Spector Rd
4.25(
20
)
Approved Pro
Customers say: Terrific value
1271 local quotes requested
12 years of experience

Thank you for choosing Northeast Painting and Home Improvement, LLC (NEP Home Improvement for short). We bring over twenty five years experience to each project, large or small. We promise prompt, personal and professional service and customer satisfaction is our goal. Call for a consultation on your project today.

"Excellent service and work Always on time with a friendly budget"

Abi N on February 2025

Thank you for choosing Northeast Painting and Home Improvement, LLC (NEP Home Improvement for short). We bring over twenty five years experience to each project, large or small. We promise prompt, personal and professional service and customer satisfaction is our goal. Call for a consultation on your project today.

"Excellent service and work Always on time with a friendly budget"

Abi N on February 2025


Avatar for Long Home Products
Long Home Products
16 International Dr
5.00(
1
)
Approved Pro
Long Home Products
16 International Dr
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2844 local quotes requested

With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Quick, one day service, cleaned up after, friendly they even double checked with us before installing safety handles and shelves to make sure they were exactly where we wanted them."

Shelley A on March 2025

With over 70 years of experience in home improvement, Long Home Products is the industry-leading company you can trust to give you peace of mind. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We are experts in all aspects of roofing, bathroom, window and door projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Quick, one day service, cleaned up after, friendly they even double checked with us before installing safety handles and shelves to make sure they were exactly where we wanted them."

Shelley A on March 2025

...
Showing 1-10 of 578

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.

The homeowners guide to water heater installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
water main being installed in yard
Apr 30, 2025
Apr 30, 2025
Budget for main water line replacement costs based on factors such as accessibility, depth, length, materials, permits, labor, and more.
Beautiful large white bathroom
Apr 30, 2025
Apr 30, 2025
Budget for walk-in bathtub costs based on factors such as bathtub type, labor, plumbing and electrical work, additional accessibility features, and more.
marble kitchen counter with gold faucet
Apr 28, 2025
Apr 28, 2025
Explore the average cost to replace a kitchen faucet with a professional plumber based on factors like faucet type, features, labor, and unexpected costs.
plumber installing sewer main pipes in the ground
Apr 25, 2025
Apr 25, 2025
Understand what goes into installing a sewer line, including materials, labor, permits, and potential landscaping considerations, to ensure a smooth and compliant connection to your local sewer system.
water main being repaired by plumbers
Apr 24, 2025
Apr 24, 2025
Main water line leak repair costs depend on how much of the line needs repair and other factors. Learn what influences the price before you take on this project.
A couple cooking together
Apr 25, 2025
Apr 25, 2025
Budget for gas line installation costs based on factors such as gas line type, pipe material, project type, permits, potential repairs, labor, and more.
Share project details to get started.