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    Average homeowner rating
  • Verified reviews icon38
    Verified water heater services reviews

Find Water heater pros in Dover

Avatar for Gervais Plumbing & Heating Inc

Gervais Plumbing & Heating Inc

3.71(
7
)
Approved Pro

Gervais Plumbing & Heating Inc

3.71(
7
)
Approved Pro
Customers say: Quick response
57 local quotes requested

18 Years in Business Gervais Mechanical Service LLC is a fully licensed, local, family-run business. With more than 100 years of combined experience, we strive to bring our customers exceptional repair and installation services they can rely on. We offer turnkey solutions for both residential and commercial customers — no job is too large or complex for our expert team.

"Absolute ripoff, along with shady business practices. They were prompt and courteous, but that's about it. The technician came and had to replace a $200 part on my boiler, it took him under an hour to do the work. A simple Google search showed at least 10 places to buy the exact part, all around $200. No other parts were needed for this repair, I researched what is involved. I was charged almost $1000, including their $89 diagnostic fee just to walk in the door. So apparently it's a $600+/hour labor rate? I'm obviously in the wrong line of work. This was not an off hours emergency call either, it was a scheduled appointment in the middle of a weekday. The shadiest part of the entire thing was that on the invoice (that they email you later) they bury all the cost, it's not itemized i.e. labor vs parts cost. It just says replaced (part) = $1000. A super scummy and shady way to run a "professional" business, taking advantage of people who don't know any better. I wouldn't be surprised if they also sell used cars. Never again Gervais. You've all been warned."

Jeffrey J on January 2025

18 Years in Business Gervais Mechanical Service LLC is a fully licensed, local, family-run business. With more than 100 years of combined experience, we strive to bring our customers exceptional repair and installation services they can rely on. We offer turnkey solutions for both residential and commercial customers — no job is too large or complex for our expert team.

"Absolute ripoff, along with shady business practices. They were prompt and courteous, but that's about it. The technician came and had to replace a $200 part on my boiler, it took him under an hour to do the work. A simple Google search showed at least 10 places to buy the exact part, all around $200. No other parts were needed for this repair, I researched what is involved. I was charged almost $1000, including their $89 diagnostic fee just to walk in the door. So apparently it's a $600+/hour labor rate? I'm obviously in the wrong line of work. This was not an off hours emergency call either, it was a scheduled appointment in the middle of a weekday. The shadiest part of the entire thing was that on the invoice (that they email you later) they bury all the cost, it's not itemized i.e. labor vs parts cost. It just says replaced (part) = $1000. A super scummy and shady way to run a "professional" business, taking advantage of people who don't know any better. I wouldn't be surprised if they also sell used cars. Never again Gervais. You've all been warned."

Jeffrey J on January 2025


Avatar for Cotti-Johnson Heating-Cooling-Electrical

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
948 local quotes requested

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025


Kenny Builders

5.00(
12
)
Approved Pro

Kenny Builders

5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

General contractor, remodeling, new construction, fine custom building. All phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! Don't see your need on our list of services? Give us a call to further discuss your needs!

"Fearghal Kenny turned our 130-year-old Victorian attic into a beautiful living space with modern aesthetics and time-period sensibilities. He is a highly skilled craftsman with years of experience and a fantastic eye for detail. He managed his team of quality subcontractors beautifully. He was flexible, responded immediately to inquiries, and was respectful of requests. Our new living space, which includes a bathroom, is absolutely beautiful! We highly recommend Kenny Builders and plan to hire him for our next project."

Carolyn N on August 2023

General contractor, remodeling, new construction, fine custom building. All phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! Don't see your need on our list of services? Give us a call to further discuss your needs!

"Fearghal Kenny turned our 130-year-old Victorian attic into a beautiful living space with modern aesthetics and time-period sensibilities. He is a highly skilled craftsman with years of experience and a fantastic eye for detail. He managed his team of quality subcontractors beautifully. He was flexible, responded immediately to inquiries, and was respectful of requests. Our new living space, which includes a bathroom, is absolutely beautiful! We highly recommend Kenny Builders and plan to hire him for our next project."

Carolyn N on August 2023


Avatar for RC Works

RC Works

4.94(
16
)
Approved Pro

RC Works

4.94(
16
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

Craftsmanship. It's not about making something that meets expectations. It's about creating something that changes them. RC WORKS offers over Five years of experience in the home building and remodeling industry in the Greater Boston area. We take pride in delivering a product that reflects our high standards for craftsmanship and our dedication to the work that we do. Our approach is a personal one, involving the client in every phase of the project down to the smallest detail, and our list of repeat clientele reflects the trust we build with each project. We work on all aspect of repairs from basement to the roof.

"RC Works did our bathroom renovation. We are happy with the process and the beautiful results! Andrey, Mariano and the team are professional, kind and easy to work with. Andrey is a wonderful listener and communicator. He responded to us promptly, managed the project efficiently and transparently, and kept us updated on the work and timeline. Big praises also to Mariano and Neto, who did the carpentry work, glass shower installation, among other tasks. They went above and beyond to deliver high-quality work, arriving on site with bright smiles and hard-working attitudes. We are also happy with the other team members, who are friendly and competent: tile installer for beautiful tiling, plumbers, electrician, painters and cleaners. Overall, we would highly recommend RC works."

Annie H on May 2025

Craftsmanship. It's not about making something that meets expectations. It's about creating something that changes them. RC WORKS offers over Five years of experience in the home building and remodeling industry in the Greater Boston area. We take pride in delivering a product that reflects our high standards for craftsmanship and our dedication to the work that we do. Our approach is a personal one, involving the client in every phase of the project down to the smallest detail, and our list of repeat clientele reflects the trust we build with each project. We work on all aspect of repairs from basement to the roof.

"RC Works did our bathroom renovation. We are happy with the process and the beautiful results! Andrey, Mariano and the team are professional, kind and easy to work with. Andrey is a wonderful listener and communicator. He responded to us promptly, managed the project efficiently and transparently, and kept us updated on the work and timeline. Big praises also to Mariano and Neto, who did the carpentry work, glass shower installation, among other tasks. They went above and beyond to deliver high-quality work, arriving on site with bright smiles and hard-working attitudes. We are also happy with the other team members, who are friendly and competent: tile installer for beautiful tiling, plumbers, electrician, painters and cleaners. Overall, we would highly recommend RC works."

Annie H on May 2025


Avatar for Royal Contracting

Royal Contracting

4.86(
145
)
Approved Pro

Royal Contracting

4.86(
145
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
12 local quotes requested

Royal Contracting was established in 1999 and has experienced steady growth ever since. Its owner, Dermot McElligott has over 20 years experience in the construction field. Our mission is to provide top quality craftsmanship while maintaining superior customer care. We pride ourselves on long term relationships with our customers by ensuring each job is met with 100% customer satisfaction. We are a general contracting service specializing in kitchen and bath remodeling, as well as running a carpentry and handyman service and interior and exterior painting. We do it all! No job is too large or too small! Additional DBA - Dermot McElligott. Award winning.

"Project was completed in a timely fashion at the agreed upon price."

Alex M on February 2025

Royal Contracting was established in 1999 and has experienced steady growth ever since. Its owner, Dermot McElligott has over 20 years experience in the construction field. Our mission is to provide top quality craftsmanship while maintaining superior customer care. We pride ourselves on long term relationships with our customers by ensuring each job is met with 100% customer satisfaction. We are a general contracting service specializing in kitchen and bath remodeling, as well as running a carpentry and handyman service and interior and exterior painting. We do it all! No job is too large or too small! Additional DBA - Dermot McElligott. Award winning.

"Project was completed in a timely fashion at the agreed upon price."

Alex M on February 2025


MPNF Plumbing

New on AngiNew on Angi
Approved Pro

MPNF Plumbing

New on AngiNew on Angi
Approved Pro
25 years of experience
Free onsite estimate

At MPNF Plumbing we pride ourselves on being the best plumbing company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

At MPNF Plumbing we pride ourselves on being the best plumbing company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!


"Bright knows exactly what he's doing and how to fix a major plumbing issue. Very professional, prompt, has very clear communication, is hard working, very hard working, and personable. He has the proper equipment do diagnose and fix the problem in a timely manner. His knowledge of plumbing is also exemplary. It was a pleasure doing business with him and will hire him for future jobs. Thank you Bright!"

Ava D on January 2022

We pride ourselves on reliability, communication, integrity, and quality work. We are experts in our trade. We look forward to earning your business! Please call 978-941 5561 For all drain and sewer services

"Bright knows exactly what he's doing and how to fix a major plumbing issue. Very professional, prompt, has very clear communication, is hard working, very hard working, and personable. He has the proper equipment do diagnose and fix the problem in a timely manner. His knowledge of plumbing is also exemplary. It was a pleasure doing business with him and will hire him for future jobs. Thank you Bright!"

Ava D on January 2022


Avatar for Arts Home Improvement, Inc.

Arts Home Improvement, Inc.

4.91(
37
)
Approved Pro

Arts Home Improvement, Inc.

4.91(
37
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
10 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!

"Lou did a great job! I look forward to him working on this house for years to come. "

Mark R on August 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!

"Lou did a great job! I look forward to him working on this house for years to come. "

Mark R on August 2025


Columbus Plumbing & Drain

5.00(
2
)
Approved Pro

Columbus Plumbing & Drain

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Our mission at Columbus Plumbing & Drain is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Columbus Plumbing & Drain stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"The plumber was very Professional"

Frank M on August 2019

Our mission at Columbus Plumbing & Drain is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Columbus Plumbing & Drain stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"The plumber was very Professional"

Frank M on August 2019


Avatar for US ProPaint and Renovation, Inc.

US ProPaint and Renovation, Inc.

4.85(
240
)
Approved Pro

US ProPaint and Renovation, Inc.

4.85(
240
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
774 local quotes requested

US Pro Paint and Renovation is a full-service home improvement company that has been serving the South Shore, Cape Cod and Greater Boston areas for over 23 years. Owned and operated by JR Reis and Jessica Reis, who have a combined 23 years of experience in construction and renovations, our company specializes in exterior and interior home improvement services including, siding, roofing, painting, windows, doors, flooring, decks, repairs, renovations, remodeling, cabinets refacing and refinishing, additions and expansions, restorations (including mold and water restorations). We are dedicated to providing great quality workmanship, employing a drug-free staff of high moral character, using high-quality products, offering exceptional warranties, and ensuring your satisfaction. - Highly rated and recommended contractor on Angie's List/HomeAdvisor with over 230 reviews. - Rated 4.8 stars on Google with over 170 reviews. - We leave your job site cleaner than when we arrived.

"Very detailed work items. Carefully examined the project prior to the quote. Formal payment system."

TT H on November 2025

US Pro Paint and Renovation is a full-service home improvement company that has been serving the South Shore, Cape Cod and Greater Boston areas for over 23 years. Owned and operated by JR Reis and Jessica Reis, who have a combined 23 years of experience in construction and renovations, our company specializes in exterior and interior home improvement services including, siding, roofing, painting, windows, doors, flooring, decks, repairs, renovations, remodeling, cabinets refacing and refinishing, additions and expansions, restorations (including mold and water restorations). We are dedicated to providing great quality workmanship, employing a drug-free staff of high moral character, using high-quality products, offering exceptional warranties, and ensuring your satisfaction. - Highly rated and recommended contractor on Angie's List/HomeAdvisor with over 230 reviews. - Rated 4.8 stars on Google with over 170 reviews. - We leave your job site cleaner than when we arrived.

"Very detailed work items. Carefully examined the project prior to the quote. Formal payment system."

TT H on November 2025

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Water Heaters questions, answered by experts

Yes, most municipalities have codes that require water heaters to have pans. A pan is necessary when a water heater or hot water storage tank is installed in an area where water leakage could cause damage, such as an attic, second floor, or finished basement. Tankless water heaters are not required to have a pan since there is no storage tank.

How long do water heaters last? The average tank-style hot water heater will last 8 to 12 years, while a tankless water heater may last up to 20 years. Large families that use a lot of hot water will put more stress on the unit, potentially shortening its lifespan. Regular maintenance and repairs can lengthen the unit’s lifespan.

It usually takes a professional water heater installer between two and three hours to remove an existing water heater and install a new tank heater. However, it could take four to five hours if they have to work in a small utility closet or another tight area, like a crawl space. Tankless water heaters have a more complicated installation process, so they will take a bit longer. Additionally, a gas water heater requires a connection to a gas line, and that alone can add about an hour to the installation timeline compared to installing an electric water heater.

Electric water heaters use a high amount of electricity, so they’re best for homeowners who subsidize their electric bill with solar or who live in an area with inexpensive electricity. For others, gas water heaters versus electric water heaters may be the more cost-effective solution, with the added bonus of heating water quickly and efficiently. No matter which you choose, you can lower your water temperature as low as possible to keep costs down.

Often, the first issue you might encounter is a lack or loss of power—this could be caused by a tripped switch or a failed heating element. If your hot water is not producing enough power and its size is not the issue, you might need to replace one of its heating elements. A leaking water heater could be caused by tank erosion.

The Dover, MA homeowners’ guide to water heater services

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