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Water heater installers and replacers in Danvers

Avatar for Ken Doherty Plumbing & Heating
Ken Doherty Plumbing & Heating
179 Adams Street
5.00(
5
)
Approved Pro
Ken Doherty Plumbing & Heating
179 Adams Street
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 years of experience

Whatever plumbing or heating problem you have can be fixed right for a reasonable price. I accept Cash, Check, Credit Cards, PayPal, Venmo, and more.

"Ken is the best!!! Top quality installationâ ¦very professionalâ ¦honest and sincere. Ken has performed many tasks for me in the past and has never ceased to amaze me or let me down. If you want a job done right, you canâ  t go wrong with Ken!!!"

Nancy C on December 2021

Whatever plumbing or heating problem you have can be fixed right for a reasonable price. I accept Cash, Check, Credit Cards, PayPal, Venmo, and more.

"Ken is the best!!! Top quality installationâ ¦very professionalâ ¦honest and sincere. Ken has performed many tasks for me in the past and has never ceased to amaze me or let me down. If you want a job done right, you canâ  t go wrong with Ken!!!"

Nancy C on December 2021


Avatar for Matt Evans Plumbing and Heating
Matt Evans Plumbing and Heating
50 Highland Ave
4.95(
57
)
Approved Pro
Matt Evans Plumbing and Heating
50 Highland Ave
4.95(
57
)
Approved Pro
Customers say: True professional
41 local quotes requested
12 years of experience

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.

"Matt helped replace mixing valve and expansion tank. Very professional and friendly. Would recommend."

Ahmar Z on June 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 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.

"Matt helped replace mixing valve and expansion tank. Very professional and friendly. Would recommend."

Ahmar Z on June 2025


Avatar for Addario, Inc.
Addario, Inc.
2 Gill Street, Suite J
3.95(
223
)
Approved Pro
Addario, Inc.
2 Gill Street, Suite J
3.95(
223
)
Approved Pro
Customers say: True professional
999 local quotes requested
27 years of experience

For over 2 decades, Addario's has provided over 50,000 Massachusetts homeowners with reliable, trustworthy, and complete home services. Backed by the area's best warranty. Addario's is an A+ Better Business Bureau rated company and was voted one of the fastest growing companies in 2013. We are licensed and insured, able to perform any and all home service jobs related to plumbing, heating, cooling, electrical, drain cleaning, sewer replacement, one-day bathroom remodels, generators and much more. If your home needs it, Addario's can do it. Comprised of more than 50 employees, homeowners can trust Addario's to perform all types of home repairs, inspections and replacements for all of your homes vital mechanical systems. As a valued customer, you will receive a homeowners checklist to help you maintain your home in between visits. If any aspect of your heating and cooling system isn't working properly rest assured we'll fix it!

"Excellent work overall. The team was highly professional and responsive and was able to work under a tight timeline. Two thumbs up for this company."

Ian C on June 2025

For over 2 decades, Addario's has provided over 50,000 Massachusetts homeowners with reliable, trustworthy, and complete home services. Backed by the area's best warranty. Addario's is an A+ Better Business Bureau rated company and was voted one of the fastest growing companies in 2013. We are licensed and insured, able to perform any and all home service jobs related to plumbing, heating, cooling, electrical, drain cleaning, sewer replacement, one-day bathroom remodels, generators and much more. If your home needs it, Addario's can do it. Comprised of more than 50 employees, homeowners can trust Addario's to perform all types of home repairs, inspections and replacements for all of your homes vital mechanical systems. As a valued customer, you will receive a homeowners checklist to help you maintain your home in between visits. If any aspect of your heating and cooling system isn't working properly rest assured we'll fix it!

"Excellent work overall. The team was highly professional and responsive and was able to work under a tight timeline. Two thumbs up for this company."

Ian C on June 2025


Avatar for STATE PLUMBING & HEATING, INC.
STATE PLUMBING & HEATING, INC.
5 Pauline Circle
4.81(
8
)
Approved Pro
STATE PLUMBING & HEATING, INC.
5 Pauline Circle
4.81(
8
)
Approved Pro
Customers say: Quick response
14 local quotes requested
9 years of experience

State Plumbing and Heating, INC. works hard to provide the highest quality workmanship and customer service on every job we are awarded. Thank you for the opportunity to service your request. We look forward to serving all your plumbing needs.

"We found State Plumbing and Heating to be very professional. They were always on time and finished the job within the estimated window. Alex was attentive to our calls and provided immediate responses to our inquiries. - AL"

Albert L on March 2025

State Plumbing and Heating, INC. works hard to provide the highest quality workmanship and customer service on every job we are awarded. Thank you for the opportunity to service your request. We look forward to serving all your plumbing needs.

"We found State Plumbing and Heating to be very professional. They were always on time and finished the job within the estimated window. Alex was attentive to our calls and provided immediate responses to our inquiries. - AL"

Albert L on March 2025


Avatar for MANGANARO PLUMBING & HEATING LLC
MANGANARO PLUMBING & HEATING LLC
75 Valley St.
5.00(
1
)
Approved Pro
MANGANARO PLUMBING & HEATING LLC
75 Valley St.
5.00(
1
)
Approved Pro
2 years of experience

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

"very good, nice and pleasant. I will be using them again and highly recommend, very clean and quick "

Gregory C on June 2025

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

"very good, nice and pleasant. I will be using them again and highly recommend, very clean and quick "

Gregory C on June 2025


Avatar for JB's All-Star Services
JB's All-Star Services
3 Lincoln St #1
4.42(
6
)
Approved Pro
JB's All-Star Services
3 Lincoln St #1
4.42(
6
)
Approved Pro
7 years of experience
Free onsite estimate

Reliable, professional plumbing services you can count on. We specialize in home plumbing repairs including leaky faucets, clogged drains, water heater service, pipe replacements, and more. Whether it’s a quick fix or a major repair, we provide fast, honest, and affordable service right to your door. Licensed and insured, we pride ourselves on quality workmanship, clear communication, and customer satisfaction. Offering same-day service, emergency repairs, and free estimates. Trust us to keep your home running smoothly—plumbing done right the first time.

"It was a quick response, professional, and one part was replaced successfully. But there was a repair that he said was a quick adjustment, which he did in a couple minutes, but 4 visits later is still not fixed. Now I have to pay someone else to do it, so those $400 were not good value for me."

Angela A on May 2025

Reliable, professional plumbing services you can count on. We specialize in home plumbing repairs including leaky faucets, clogged drains, water heater service, pipe replacements, and more. Whether it’s a quick fix or a major repair, we provide fast, honest, and affordable service right to your door. Licensed and insured, we pride ourselves on quality workmanship, clear communication, and customer satisfaction. Offering same-day service, emergency repairs, and free estimates. Trust us to keep your home running smoothly—plumbing done right the first time.

"It was a quick response, professional, and one part was replaced successfully. But there was a repair that he said was a quick adjustment, which he did in a couple minutes, but 4 visits later is still not fixed. Now I have to pay someone else to do it, so those $400 were not good value for me."

Angela A on May 2025


M J Digby Plumbing & Heating
65 Fountain Road
4.77(
119
)
Approved Pro
M J Digby Plumbing & Heating
65 Fountain Road
4.77(
119
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
13 local quotes requested

M J Digby Plumbing & Heating is a family-run business that prides itself on service, punctuality, and cleanliness. As a Master Plumber, Matt Digby is highly qualified to meet all your plumbing needs.

"Quick"

Emily K on March 2025

M J Digby Plumbing & Heating is a family-run business that prides itself on service, punctuality, and cleanliness. As a Master Plumber, Matt Digby is highly qualified to meet all your plumbing needs.

"Quick"

Emily K on March 2025


Avatar for CS PLUMBING & MECHANICAL LLC
CS PLUMBING & MECHANICAL LLC
48 Sewall St
5.00(
16
)
Approved Pro
CS PLUMBING & MECHANICAL LLC
48 Sewall St
5.00(
16
)
Approved Pro
2 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 particular task or project. We look forward to earning your business!

"Cecil is an absolute professional and dedicated this his craft. When a heating system pipe burst in the middle of winter, Cecil was there within the hour to fix it. We have used him several times for repairs and upgrades at our rental units - his work is flawless and his prices are fair."

Paulo D on June 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!

"Cecil is an absolute professional and dedicated this his craft. When a heating system pipe burst in the middle of winter, Cecil was there within the hour to fix it. We have used him several times for repairs and upgrades at our rental units - his work is flawless and his prices are fair."

Paulo D on June 2025


Avatar for ER Services Plumbing and Heating
ER Services Plumbing and Heating
11 Norris St
5.00(
3
)
Approved Pro
ER Services Plumbing and Heating
11 Norris St
5.00(
3
)
Approved Pro
Customers say: Quality work
326 local quotes requested
2 years of experience

Since our founding, ER Services Plumbing & Heating has been known for quality services, exceptional efficiency, and the highest level of professionalism. No matter what service you’re looking for, we guarantee to not only meet but exceed your expectations and ensure your full satisfaction. We have been servicing the Merrimack Valley and North Shore for 15+ years of professional experience. We excel in High-Efficiency Boilers, Water Heater Replacement, New Construction, Remodels, and Repairs. - Call today!

"ER Services responded to my request with a phone call right away, and Henry showed up about half an hour later to do the job. He was friendly and easy to work with, and he replaced my faulty outdoor spigot. Pleased with my experience with ER Services!"

Cindy N on June 2025

Since our founding, ER Services Plumbing & Heating has been known for quality services, exceptional efficiency, and the highest level of professionalism. No matter what service you’re looking for, we guarantee to not only meet but exceed your expectations and ensure your full satisfaction. We have been servicing the Merrimack Valley and North Shore for 15+ years of professional experience. We excel in High-Efficiency Boilers, Water Heater Replacement, New Construction, Remodels, and Repairs. - Call today!

"ER Services responded to my request with a phone call right away, and Henry showed up about half an hour later to do the job. He was friendly and easy to work with, and he replaced my faulty outdoor spigot. Pleased with my experience with ER Services!"

Cindy N on June 2025


Avatar for Mora's Plumbing & Heating, LLC
Mora's Plumbing & Heating, LLC
7 Sagamore Road
5.00(
6
)
Approved Pro
Mora's Plumbing & Heating, LLC
7 Sagamore Road
5.00(
6
)
Approved Pro
5 years of experience
Emergency services offered

We are a locally owned and operated company that values honesty and integrity and stand behind our work. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"I had a water line break in my home at 2am in the morning. I called Frank and he was at my home first thing in the morning. He fixed my water line and the charge was very reasonable. I have also had Frank replace a couple of fittings in one of my bathrooms. He is the person I relie on the take care of my plumbing needs."

Jim F on June 2025

We are a locally owned and operated company that values honesty and integrity and stand behind our work. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"I had a water line break in my home at 2am in the morning. I called Frank and he was at my home first thing in the morning. He fixed my water line and the charge was very reasonable. I have also had Frank replace a couple of fittings in one of my bathrooms. He is the person I relie on the take care of my plumbing needs."

Jim F on June 2025

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FAQs for water heater installation and replacement projects in Danvers, MA

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 Danvers, MA homeowners’ guide to water heater installations and replacements
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