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TRUSTED BY DOVER, NH HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon25
    Verified water heater services reviews

Find Water heater pros in Dover

Kenny Brook Property, LLC

4.25(
4
)
Approved Pro

Kenny Brook Property, LLC

4.25(
4
)
Approved Pro
Customers say: Terrific value
41 local quotes requested
23 years of experience

Professional and reliable home remodeling services, Serving the Seacoast and Southern New Hampshire for the past 20 years. Our remodeling expertise can help you realize the dreams of your home or investment property and make them a reality.

"We met Dan months before the project was scheduled to start and he knew our deadline was 7/9 when our first weekly vacation renter was due to arrive. Our main issues were: He was a week late starting Didn't show up on several days (had to take his son to get his COVID shot, several days it was too hot, heavy traffic, etc) Ignored my detailed instructions/drawings and we lost time because he plumed a double vanity for only 1 sink, told us we could buy any standard shower door from Lowe's only to learn AFTER the shower had been framed that it required a custom built door, forgot to tile the accent color stripe in the shower, miscalculated the amount of shower tile needed requiring me to drive 3 hours RT to purchase extra tile and deliver it to him. Skim coat on the ceiling was done poorly, the door to the bathroom didn't open all the way so we had to hire someone after Dan left to shave it down for us. He was supposed to finish by July 9th and didn't finish until Sept 9th!!!! had to give renters $3000 off because they had no toilet or shower. I split the difference with him and took $1500 off his bill and he was not happy. I should have taken the entire amount off. He might be OK for smaller jobs, but he is not focused enough and doesn't work a full day (usually 8 AM -1 PM) or even a full week. If he takes work outside of NH, he should have his plumbing/electrical license so he doesn't have to rely on outside contractors. We suffered because he didn't hold ME licenses and wasn't well connected w/ local contractors in ME."

Pamela C on July 2022

Professional and reliable home remodeling services, Serving the Seacoast and Southern New Hampshire for the past 20 years. Our remodeling expertise can help you realize the dreams of your home or investment property and make them a reality.

"We met Dan months before the project was scheduled to start and he knew our deadline was 7/9 when our first weekly vacation renter was due to arrive. Our main issues were: He was a week late starting Didn't show up on several days (had to take his son to get his COVID shot, several days it was too hot, heavy traffic, etc) Ignored my detailed instructions/drawings and we lost time because he plumed a double vanity for only 1 sink, told us we could buy any standard shower door from Lowe's only to learn AFTER the shower had been framed that it required a custom built door, forgot to tile the accent color stripe in the shower, miscalculated the amount of shower tile needed requiring me to drive 3 hours RT to purchase extra tile and deliver it to him. Skim coat on the ceiling was done poorly, the door to the bathroom didn't open all the way so we had to hire someone after Dan left to shave it down for us. He was supposed to finish by July 9th and didn't finish until Sept 9th!!!! had to give renters $3000 off because they had no toilet or shower. I split the difference with him and took $1500 off his bill and he was not happy. I should have taken the entire amount off. He might be OK for smaller jobs, but he is not focused enough and doesn't work a full day (usually 8 AM -1 PM) or even a full week. If he takes work outside of NH, he should have his plumbing/electrical license so he doesn't have to rely on outside contractors. We suffered because he didn't hold ME licenses and wasn't well connected w/ local contractors in ME."

Pamela C on July 2022


Avatar for Derry Plumbing & Heating

Derry Plumbing & Heating

4.50(
30
)
Approved Pro

Derry Plumbing & Heating

4.50(
30
)
Approved Pro
Customers say: Quality work
36 years of experience
Free onsite estimate

If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!

"Great service! Emergency service and done within the day!"

Bonnie S on May 2025

If you�re familiar with plumbing, you know that doing it right takes just the right recipe: two parts job knowledge and three parts skill. At Londonderry Plumbing and Heating, we provide everything you need to secure the perfect plumbing solution, a mixture that will do you right, just like home cooking! No job is too small or too challenging for our dedicated professionals! Londonderry Plumbing and Heating can tackle your most challenging plumbing problems and do so at affordable rates. If you are looking for a plumber who is highly qualified, quick to respond and a pleasure to do business with, give us a call. We look forward to adding you to our list of satisfied customers!

"Great service! Emergency service and done within the day!"

Bonnie S on May 2025


Avatar for Septic Designs of NH, LLC

Septic Designs of NH, LLC

4.75(
25
)
Approved Pro

Septic Designs of NH, LLC

4.75(
25
)
Approved Pro
Customers say: Terrific value
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
20 local quotes requested

Septic Designs of NH LLC is a Veteran owned small business with BBB accreditation. We take great pride in our work and are not satisfied until you are. We do Septic Designs, Inspections, Tank Replacements, and Septic Repairs. We also clear main sewer lines and do Trenchless Pipe Repair. Which is a NO DIG solution for pipe replacements. Our jetter is also a HEATED jetter for that tough grease or other buildup where you need some extra hot water to really clean the pipe.

"I called every plumber around and Septic Design of NH had the best price to put a camera down the sewer line. Problem was located in no time."

Vickie C on September 2021

Septic Designs of NH LLC is a Veteran owned small business with BBB accreditation. We take great pride in our work and are not satisfied until you are. We do Septic Designs, Inspections, Tank Replacements, and Septic Repairs. We also clear main sewer lines and do Trenchless Pipe Repair. Which is a NO DIG solution for pipe replacements. Our jetter is also a HEATED jetter for that tough grease or other buildup where you need some extra hot water to really clean the pipe.

"I called every plumber around and Septic Design of NH had the best price to put a camera down the sewer line. Problem was located in no time."

Vickie C on September 2021


Avatar for Revelare Kitchens

Revelare Kitchens

4.34(
87
)
Approved Pro

Revelare Kitchens

4.34(
87
)
Approved Pro
Customers say: Quality work
529 local quotes requested
16 years of experience

Revelare Kitchens (latin for "unveil") was created in 2007. Since then, we have grown into a family of creative and innovative kitchen designers and craftsmen who are committed to excellence and unparalleled design. Specializing in kitchen cabinet refacing, custom cabinetry, and countertops; Revelare Kitchens has an option to satisfy a wide range of styles perfectly matched to your house and your budget. We believe creative designs are the result of meaningful dialogue and trust between the interior designer and client. In every project, we strive to fully understand our clients’ needs and apply their feedback and ideas into our designs. We do, however, use our expertise to ensure that the end result is as professional as possible. Contact us today to see how we can get you started.

"The job was amazingly done. I was never inconvenienced, pro cleaned behind himself, very professional. Took time to explain cleaning & maintenance. Overall great experience. I am pleased. "

Alectra B on November 2025

Revelare Kitchens (latin for "unveil") was created in 2007. Since then, we have grown into a family of creative and innovative kitchen designers and craftsmen who are committed to excellence and unparalleled design. Specializing in kitchen cabinet refacing, custom cabinetry, and countertops; Revelare Kitchens has an option to satisfy a wide range of styles perfectly matched to your house and your budget. We believe creative designs are the result of meaningful dialogue and trust between the interior designer and client. In every project, we strive to fully understand our clients’ needs and apply their feedback and ideas into our designs. We do, however, use our expertise to ensure that the end result is as professional as possible. Contact us today to see how we can get you started.

"The job was amazingly done. I was never inconvenienced, pro cleaned behind himself, very professional. Took time to explain cleaning & maintenance. Overall great experience. I am pleased. "

Alectra B on November 2025


Avatar for Patriot Bath Remodeling LLC

Patriot Bath Remodeling LLC

4.80(
10
)
Approved Pro

Patriot Bath Remodeling LLC

4.80(
10
)
Approved Pro
Customers say: Quick response
257 local quotes requested
1 years of experience

Patriot was established by four industry leaders with over 50 years of collective experience. Drawing from extensive collaboration with major home improvement corporations, we developed a strategic vision that culminated in the formation of Patriot. Our motivation stemmed from identifying inefficiencies within prominent home improvement firms and their impact on everyday consumers. At Patriot, our mission is rooted in a commitment to serve the community.

"Although I am pleased with the completed shower, I did not have a great experience. Mason was the sales man, and he was lovely except during the sales process he showed me doors that they no longer stock. No big deal except the doors that we agreed on were not what was delivered. Jim the project manager came out and measured the enclosure , then ordered what we had agreed and put a deposit on. We were told it may take 10 weeks to come in?. It did. The team came in the following week and removed the old tub and walls, did all the prep and plumbing on Monday. We were told as soon as the plumbing inspector came out , and passed their work they would come right back out and start the installation. Passed at 10 AM Tuesday morning, Jim said he would send a crew that afternoon, no one showed up. This went on till Friday, keep in mind, I only have one shower. Friday arrived, the installer was here with everything needed to install my new shower. About a half hour later the installer let me kn"

Mary M on November 2025

Patriot was established by four industry leaders with over 50 years of collective experience. Drawing from extensive collaboration with major home improvement corporations, we developed a strategic vision that culminated in the formation of Patriot. Our motivation stemmed from identifying inefficiencies within prominent home improvement firms and their impact on everyday consumers. At Patriot, our mission is rooted in a commitment to serve the community.

"Although I am pleased with the completed shower, I did not have a great experience. Mason was the sales man, and he was lovely except during the sales process he showed me doors that they no longer stock. No big deal except the doors that we agreed on were not what was delivered. Jim the project manager came out and measured the enclosure , then ordered what we had agreed and put a deposit on. We were told it may take 10 weeks to come in?. It did. The team came in the following week and removed the old tub and walls, did all the prep and plumbing on Monday. We were told as soon as the plumbing inspector came out , and passed their work they would come right back out and start the installation. Passed at 10 AM Tuesday morning, Jim said he would send a crew that afternoon, no one showed up. This went on till Friday, keep in mind, I only have one shower. Friday arrived, the installer was here with everything needed to install my new shower. About a half hour later the installer let me kn"

Mary M on November 2025


Avatar for House Doctors of Seacoast

House Doctors of Seacoast

5.00(
5
)
Approved Pro

House Doctors of Seacoast

5.00(
5
)
Approved Pro
37 local quotes requested
Free onsite estimate

Whether you've decided to remodel the interior of your home, complete the home repairs crowding your to-do list, or simply need some help with general maintenance to keep things in check, House Doctors is the trusted handyman service for all your home and business repair and improvement needs. We're the leading property repair and maintenance company in the United States. For over 20 years, homeowners and commercial property owners have chosen House Doctors locations nationwide for their high customer service, reliability, and workmanship standards. It's all part of our difference, and we're proud to continue to deliver handyman services that truly stand out.

Whether you've decided to remodel the interior of your home, complete the home repairs crowding your to-do list, or simply need some help with general maintenance to keep things in check, House Doctors is the trusted handyman service for all your home and business repair and improvement needs. We're the leading property repair and maintenance company in the United States. For over 20 years, homeowners and commercial property owners have chosen House Doctors locations nationwide for their high customer service, reliability, and workmanship standards. It's all part of our difference, and we're proud to continue to deliver handyman services that truly stand out.


Avatar for Horsman Builders

Horsman Builders

5.00(
19
)
Approved Pro

Horsman Builders

5.00(
19
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
83 local quotes requested

We are a full service genral contracting company specializing in all aspects of commercial , residential,industrial construction projects from small to large scale.Most work is performed 'in house" as well as utilizing a tight knit group of sub contractors as needed.

"Company was very good to work with. Great with communication. Needed the job done quite fast and they were able to squeeze me in to get it done for when I needed it."

Jennifer G on November 2023

We are a full service genral contracting company specializing in all aspects of commercial , residential,industrial construction projects from small to large scale.Most work is performed 'in house" as well as utilizing a tight knit group of sub contractors as needed.

"Company was very good to work with. Great with communication. Needed the job done quite fast and they were able to squeeze me in to get it done for when I needed it."

Jennifer G on November 2023


Avatar for Long Home

Long Home

4.68(
167
)
Approved Pro

Long Home

4.68(
167
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
241 local quotes requested

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 projects and specialize in asphalt shingle installations and replacements. 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!

"Long Home did an awesome job installing my new shower, vanity, and bathroom floor. It looks beautiful!"

Peter M on April 2025

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 projects and specialize in asphalt shingle installations and replacements. 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!

"Long Home did an awesome job installing my new shower, vanity, and bathroom floor. It looks beautiful!"

Peter M on April 2025


Avatar for 603 MECHANICAL

603 MECHANICAL

5.00(
3
)
Approved Pro

603 MECHANICAL

5.00(
3
)
Approved Pro
Customers say: Quick response
36 local quotes requested
3 years of experience

With more than 15 yrs of experience, 603 Refrigeration LLC is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"The gentlemaen that have come to my house from this company have been spectacular. They came on time they’re efficient. There’s no nonsense. They found a problem replaced it and said please call back if there’s a problem and they couldn’t have been nicer. I would highly highly recommend them to anyone "

James S on August 2025

With more than 15 yrs of experience, 603 Refrigeration LLC is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"The gentlemaen that have come to my house from this company have been spectacular. They came on time they’re efficient. There’s no nonsense. They found a problem replaced it and said please call back if there’s a problem and they couldn’t have been nicer. I would highly highly recommend them to anyone "

James S on August 2025


"Prompt, quick fix, reasonable price"

Cindy J on December 2025

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Maine – bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service.

"Prompt, quick fix, reasonable price"

Cindy J on December 2025

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Water Heaters questions, answered by experts

The time it takes to replace a water heater depends on the complexity of the job. Expect your contractor to spend:

  • One to three hours on a standard tank-style water heater replacement

  • Two to three hours on a tankless water heater replacement

  • Four to six hours replacing a tank-style water heater with a tankless water heater

  • One hour for each additional parallel or point-of-use water heater

Your project will take longer if you’re switching fuel sources, upgrading to tankless, or relocating your water heater.

Depending on the brand of water heater, you may need to install an expansion tank in order to meet the conditions for warranty coverage. It’s important for consumers to read the fine print of the warranty to see if an expansion tank is necessary. Even if an expansion tank isn’t required for the warranty, it’s usually mandated by building codes—although not for tankless water heaters.

Signs that your water heater may explode include rust-colored water coming from hot water taps, the smell of sulfur or rotten eggs coming from the water, shaking or rumbling in the tank, and a leaky temperature and pressure valve. If the water heater feels excessively hot to the touch, it could also indicate the prospect of an explosion. If you suspect your water heater might explode, call a pro immediately to address the problem.

Converting a gas water heater to an electric one can cost between $870 and $4,100, depending on the installation scope, plumbing and electrical needs, and the water heater model. However, it’s always better to contact a local pro for a more accurate quote. Also, since natural gas is cheaper than electricity in most regions, you should prepare yourself for a higher monthly cost after the initial conversion.

No. Boilers and water heaters are not interchangeable because they serve different purposes. A water heater will never be able to supply warm water or steam for your central heating system. In most homes, a boiler and a water heater may be combined to provide heating and daily use of hot water. Other homes may opt for a furnace over a boiler for their heating needs.

The Dover, NH homeowners’ guide to water heater services

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