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Find Tankless water heater installers in Dover

Avatar for Heritage Home Service

Heritage Home Service

4.54(
984
)
Approved Pro

Heritage Home Service

4.54(
984
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
78 local quotes requested

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Southern Maine. Bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service. Our namesake is about honoring those who came before us, and most importantly, it is about leaving a legacy of serving people extraordinarily well. For over 37 years in business, we have helped countless families across our community stay comfortable and healthy in their homes, and today we continue to evolve and find new ways to serve you even better.

"Initially problem was only partially fixed. Came back and fixed the problem completely at their cost."

Cindy J on December 2025

Heritage Home Service is a premier home service provider operating in New Hampshire, Massachusetts and Southern Maine. Bringing all the perks that come with having a large team while maintaining a strong focus on family-oriented service. Our namesake is about honoring those who came before us, and most importantly, it is about leaving a legacy of serving people extraordinarily well. For over 37 years in business, we have helped countless families across our community stay comfortable and healthy in their homes, and today we continue to evolve and find new ways to serve you even better.

"Initially problem was only partially fixed. Came back and fixed the problem completely at their cost."

Cindy J on December 2025


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
37 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 Maffei Plumbing and HVAC, LLC

Maffei Plumbing and HVAC, LLC

4.00(
2
)
Approved Pro

Maffei Plumbing and HVAC, LLC

4.00(
2
)
Approved Pro
44 local quotes requested
16 years of experience

At Maffei Plumbing and HVAC, LLC, we are committed to your comfort. With an experienced and qualified staff to provide quick service for any service needed. We can solve any problem with a friendly face. Give us a call for a free estimate.

"Maffei worked out great, they came first to provide a quote, and then returned a few days later once I was ready to complete the work. Both the front office and field technicians were ultra-professional to work with, and I will not hesitate to hire them again in the future."

Jeff B on February 2026

At Maffei Plumbing and HVAC, LLC, we are committed to your comfort. With an experienced and qualified staff to provide quick service for any service needed. We can solve any problem with a friendly face. Give us a call for a free estimate.

"Maffei worked out great, they came first to provide a quote, and then returned a few days later once I was ready to complete the work. Both the front office and field technicians were ultra-professional to work with, and I will not hesitate to hire them again in the future."

Jeff B on February 2026


Avatar for Lakewood Handyman

Lakewood Handyman

No reviews yet

Lakewood Handyman

No reviews yet

My name is Brandon Wood, I have been in the carpentry business for 4 years! At the beginning of 2023 I opened my own business, Lakewood Handyman. I can do all jobs big and small! I am a licensed heat pump installer, and I specialize in all things flooring. I do however provide all handyman services big and small such as; Remodels, demo, drywall, ceilings, roofing, deck building, tiling, painting, plumbing, landscaping, waste removal, you name it! If I am unable, I will be honest!

My name is Brandon Wood, I have been in the carpentry business for 4 years! At the beginning of 2023 I opened my own business, Lakewood Handyman. I can do all jobs big and small! I am a licensed heat pump installer, and I specialize in all things flooring. I do however provide all handyman services big and small such as; Remodels, demo, drywall, ceilings, roofing, deck building, tiling, painting, plumbing, landscaping, waste removal, you name it! If I am unable, I will be honest!


Avatar for Winnipesaukee Heating & Cooling, Inc.

Winnipesaukee Heating & Cooling, Inc.

No reviews yet

Winnipesaukee Heating & Cooling, Inc.

No reviews yet
11 years of experience

We are a local company focusing on customer satisfaction. We do take on subcontracting contracts, but we do not subcontract out. We are a payment on completion company, so please have a check ready upon completion of the job. We are currently running a $199 air conditioner cleaning special, does not include parts, freon or labor for major issues.

We are a local company focusing on customer satisfaction. We do take on subcontracting contracts, but we do not subcontract out. We are a payment on completion company, so please have a check ready upon completion of the job. We are currently running a $199 air conditioner cleaning special, does not include parts, freon or labor for major issues.


Avatar for Triple M Handyman

Triple M Handyman

No reviews yet

Triple M Handyman

No reviews yet
4 years of experience

Triple M Handyman specializes in small home repair and improvement projects. We offer services such as TV wall hanging, storm door installation, painting, wall repairs, door and window repairs, plumbing fixture repair or replacement, and much more! We can get your to-do list done. We offer straight-forward, convenient pricing. Most jobs can be quoted virtually, before we arrive by visiting our website. We are currently owner operated, and the owner has over 20 years experience in the handyman field. As we look to expand we only hire only qualified professionals that we can feel confident will give our customers the best experience possible.

Triple M Handyman specializes in small home repair and improvement projects. We offer services such as TV wall hanging, storm door installation, painting, wall repairs, door and window repairs, plumbing fixture repair or replacement, and much more! We can get your to-do list done. We offer straight-forward, convenient pricing. Most jobs can be quoted virtually, before we arrive by visiting our website. We are currently owner operated, and the owner has over 20 years experience in the handyman field. As we look to expand we only hire only qualified professionals that we can feel confident will give our customers the best experience possible.


J & W CONTRACTING

5.00(
1
)

J & W CONTRACTING

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Current number of employees: 3 (Variable depending on scale of work) Sub-contracing for larger job and advanced electrical and plumbing. We currently do not accept credit cards as a form of payment. Call us for all other billing inquiries.

Current number of employees: 3 (Variable depending on scale of work) Sub-contracing for larger job and advanced electrical and plumbing. We currently do not accept credit cards as a form of payment. Call us for all other billing inquiries.


Odd Job Rob

No reviews yet

Odd Job Rob

No reviews yet

Now that people are spending more time at home, projects are popping up everywhere. Looking for someone to finish up your home projects? Give me a shout. I wear proper PPE and will work with your and your schedule to get the job done! No Job is to small!

Now that people are spending more time at home, projects are popping up everywhere. Looking for someone to finish up your home projects? Give me a shout. I wear proper PPE and will work with your and your schedule to get the job done! No Job is to small!


Real Deal Builders

No reviews yet

Real Deal Builders

No reviews yet
Free onsite estimate

Real Deal Builders is a small company with 2 to 4 full time employees. I have a long list of sub-contractors I can call on for larger jobs. I require one third down with the remainder due upon completion of the job. I offer a 10% discount to senior citizens. Financing is available under specials cicumstances . Barter is always an option.

Real Deal Builders is a small company with 2 to 4 full time employees. I have a long list of sub-contractors I can call on for larger jobs. I require one third down with the remainder due upon completion of the job. I offer a 10% discount to senior citizens. Financing is available under specials cicumstances . Barter is always an option.


Avatar for Rescue Link

Rescue Link

5.00(
4
)

Rescue Link

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Comprehensive protection for your computers, electronics, and appliances of nearly any age or brand.

Comprehensive protection for your computers, electronics, and appliances of nearly any age or brand.

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The Dover, NH homeowners’ guide to tankless water heater installations

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