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 Cohasset

Justin Pierson, Licensed Plumber
74 Elliot Lane
5.00(
19
)
Approved Pro
Justin Pierson, Licensed Plumber
74 Elliot Lane
5.00(
19
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

Justin Pierson, Licensed Plumber has been in business for several years and would love the opportunity to show you what experience and expertise can mean for the overall value of your project.

"Justin was very responsive. Same day service. Excellent work product."

Alan P on August 2023

Justin Pierson, Licensed Plumber has been in business for several years and would love the opportunity to show you what experience and expertise can mean for the overall value of your project.

"Justin was very responsive. Same day service. Excellent work product."

Alan P on August 2023


Avatar for Comfort Cool Mass
Comfort Cool Mass
80 South St, Apt. 2
4.88(
8
)
Approved Pro
Comfort Cool Mass
80 South St, Apt. 2
4.88(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

With several years 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. We welcome your questions.

"Giovanni Colon was extremely competent, informed and well spoken. I would definitely recommend him."

Jonathan M on July 2023

With several years 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. We welcome your questions.

"Giovanni Colon was extremely competent, informed and well spoken. I would definitely recommend him."

Jonathan M on July 2023


Avatar for Trust 1 Services LLC
Trust 1 Services LLC
11 Newbury St
4.60(
10
)
Approved Pro
Trust 1 Services LLC
11 Newbury St
4.60(
10
)
Approved Pro
12 local quotes requested
5 years of experience

With over 100 years of experience, Trust 1 Heating, Cooling, Plumbing 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 recently worked with Trust1 Services and the experience was fantastic. A technician came to my home and informed me that my system was outdated and broken. They provided me with options to either repair or replace it, but without any pressure. We decided to go with the replacement as it was the more economical choice in the long run. During the process, the owner, Anthony, stopped by to check on the job and express his gratitude for our business. He even brought pizza from Town Spa after learning that it was my favorite place. Anthony shared some stories about how he got started in the business, making the entire experience even more enjoyable. This was hands down the best experience we have ever had with a contractor. The work was exceptional, and the overall experience was amazing. Anthony truly impressed us."

Devon H on May 2025

With over 100 years of experience, Trust 1 Heating, Cooling, Plumbing 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 recently worked with Trust1 Services and the experience was fantastic. A technician came to my home and informed me that my system was outdated and broken. They provided me with options to either repair or replace it, but without any pressure. We decided to go with the replacement as it was the more economical choice in the long run. During the process, the owner, Anthony, stopped by to check on the job and express his gratitude for our business. He even brought pizza from Town Spa after learning that it was my favorite place. Anthony shared some stories about how he got started in the business, making the entire experience even more enjoyable. This was hands down the best experience we have ever had with a contractor. The work was exceptional, and the overall experience was amazing. Anthony truly impressed us."

Devon H on May 2025


Avatar for Addario, Inc.
Addario, Inc.
2 Gill Street, Suite J
3.94(
222
)
Approved Pro
Addario, Inc.
2 Gill Street, Suite J
3.94(
222
)
Approved Pro
Customers say: True professional
984 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!

"Great work!"

Daniel P on May 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!

"Great work!"

Daniel P on May 2025


Avatar for BLANCHARD PLUMBING SERVICES, INC.
BLANCHARD PLUMBING SERVICES, INC.
115 HAYWARD PLACE
5.00(
9
)
Approved Pro
BLANCHARD PLUMBING SERVICES, INC.
115 HAYWARD PLACE
5.00(
9
)
Approved Pro
Customers say: Quick response
35 local quotes requested
3 years of experience

Quality, Service, Performance & Pricing And Fully Insured. We recognize that the marketplace is very competitive and you are constantly bombarded with sales pitches. These are everyone's top concerns and we are the best in these categories: servicing homes and commercial properties While building long and lasting relationships with our customers.

"A+. Great job, quick and knowledgeable. Very friendly. "

Dolores J on May 2025

Quality, Service, Performance & Pricing And Fully Insured. We recognize that the marketplace is very competitive and you are constantly bombarded with sales pitches. These are everyone's top concerns and we are the best in these categories: servicing homes and commercial properties While building long and lasting relationships with our customers.

"A+. Great job, quick and knowledgeable. Very friendly. "

Dolores J on May 2025


Avatar for JLG Plumbing
JLG Plumbing
66 Torrey St
5.00(
2
)
Approved Pro
JLG Plumbing
66 Torrey St
5.00(
2
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

9+ years of experience! We are 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 hired JLG Plumbing to replace the pipes under our kitchen sink. Jack responded quickly and professionally, he came to our house the next morning and took care of the problem efficiently. We are extremely pleased with the work he did, I highly recommend hiring him!"

Hannah F on May 2025

9+ years of experience! We are 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 hired JLG Plumbing to replace the pipes under our kitchen sink. Jack responded quickly and professionally, he came to our house the next morning and took care of the problem efficiently. We are extremely pleased with the work he did, I highly recommend hiring him!"

Hannah F on May 2025


Avatar for Clear Water Pump & Well Service, Inc.
Clear Water Pump & Well Service, Inc.
PO Box 6
4.49(
37
)
Approved Pro
Clear Water Pump & Well Service, Inc.
PO Box 6
4.49(
37
)
Approved Pro
Customers say: Quality work
269 local quotes requested
14 years of experience

Clear Water Pump & Well Service, Inc. is your trusted partner for all your well, water filtration and pump service needs in Massachusetts and Rhode Island. With over 15 years of experience, we are the leading experts in the industry. Our commitment is to deliver exceptional service without compromising on quality, all at an affordable price. We have extensive knowledge of the latest technology in the Water Well Industry in Massachusetts and beyond, and our services are available throughout the region. Contact us today and let us earn your business.

"Good job done."

John N on November 2024

Clear Water Pump & Well Service, Inc. is your trusted partner for all your well, water filtration and pump service needs in Massachusetts and Rhode Island. With over 15 years of experience, we are the leading experts in the industry. Our commitment is to deliver exceptional service without compromising on quality, all at an affordable price. We have extensive knowledge of the latest technology in the Water Well Industry in Massachusetts and beyond, and our services are available throughout the region. Contact us today and let us earn your business.

"Good job done."

John N on November 2024


Avatar for Pioneer Basement
Pioneer Basement
31 Sanford Rd
4.50(
249
)
Approved Pro
Pioneer Basement
31 Sanford Rd
4.50(
249
)
Approved Pro
Customers say: Super punctual
867 local quotes requested
41 years of experience

Additional service area - Cohasset, Fitchburg, Worcester, portions of Chelsea-Saugus, Chelmsford Counties. South Shore & Cape Cod and All of Rhode Island. Family owned and operated since 1984. Additional email - info@pioneerbasement.com. Additional phone - (800) 439-0788. Additional DBA - Pioneer Basement Waterproofing Inc.

"I had the estimate for the work done which went fine, then called to book the appointment. Was required to put down $200 for the $650 projected repair cost. I did this thinking there would be no issues between then and the repair date. My wife is quite pregnant and we had to move up the repair date to get the nursery ready in time for their birth. (twins) When I called to cancel this appointment and seek a refund of the $200, I was told that the window to cancel was 3 days from the scheduling and that I was forfeit my deposit. This information is in the contract, but I did not catch it at the time. I could only imagine if this were a bigger project and something like this happened to someone else. For the cost of $200 Pioneer Basement has not only lost me as a future customer, but forced my hand in posting several poor reviews such as this one. For any future customers, pay very close attention to this and hope "life" doesn't happen to you in between. Good luck."

Justin E on September 2018

Additional service area - Cohasset, Fitchburg, Worcester, portions of Chelsea-Saugus, Chelmsford Counties. South Shore & Cape Cod and All of Rhode Island. Family owned and operated since 1984. Additional email - info@pioneerbasement.com. Additional phone - (800) 439-0788. Additional DBA - Pioneer Basement Waterproofing Inc.

"I had the estimate for the work done which went fine, then called to book the appointment. Was required to put down $200 for the $650 projected repair cost. I did this thinking there would be no issues between then and the repair date. My wife is quite pregnant and we had to move up the repair date to get the nursery ready in time for their birth. (twins) When I called to cancel this appointment and seek a refund of the $200, I was told that the window to cancel was 3 days from the scheduling and that I was forfeit my deposit. This information is in the contract, but I did not catch it at the time. I could only imagine if this were a bigger project and something like this happened to someone else. For the cost of $200 Pioneer Basement has not only lost me as a future customer, but forced my hand in posting several poor reviews such as this one. For any future customers, pay very close attention to this and hope "life" doesn't happen to you in between. Good luck."

Justin E on September 2018


Avatar for Long Home Products
Long Home Products
300 Myles Standish Blvd
2.65(
20
)
Approved Pro
Long Home Products
300 Myles Standish Blvd
2.65(
20
)
Approved Pro
6060 local quotes requested
80 years of experience

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!

"Ayden was very kind and insightful. I was happy to meet an incredible worker like that from Long Home."

Alayna L on April 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!

"Ayden was very kind and insightful. I was happy to meet an incredible worker like that from Long Home."

Alayna L on April 2025


Avatar for BXL Construction Corp
BXL Construction Corp
New on HomeAdvisorNew on Angi
Approved Pro
BXL Construction Corp
New on AngiNew on HomeAdvisor
Approved Pro
2 years of experience
Free onsite estimate

We specialize in Kitchen, Bathroom and General Home Remodeling and Improvements. We also build, repair decks, as well as repair/replace Windows and Doors. We install fences, build shed and additions.

We specialize in Kitchen, Bathroom and General Home Remodeling and Improvements. We also build, repair decks, as well as repair/replace Windows and Doors. We install fences, build shed and additions.

...
Showing 1-10 of 959

FAQs for water heater installation and replacement projects in Cohasset, 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 Cohasset, MA 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.