Top-rated tankless water heater installers.

Get matched with top tankless water heater installers 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.

Tankless water heater installers in Dover

Noel Enterprises, Inc.
2 Scenic Drive
5.00(
35
)
Approved Pro
Noel Enterprises, Inc.
2 Scenic Drive
5.00(
35
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 local quotes requested

Noel Enterprises, Inc., has over 30 years of expertise. We specialize in Tankless Water Heaters - the Rinnai system provides you with superior service. We accept Visa, Mastercard, American Express and Discover. $50 off on any water heater for ANGI customers. Military discounts available. Call today and schedule an appointment. **Rinnai products only** We also do the yearly maintenance and repairs.

"Very knowledgeable on the tankless water heater he attempted to repair but ultimately manufacturer supplied a brand new unit to us. All went smoothly once new unit was received. Great to have my hot water back!"

Ed F on April 2023

Noel Enterprises, Inc., has over 30 years of expertise. We specialize in Tankless Water Heaters - the Rinnai system provides you with superior service. We accept Visa, Mastercard, American Express and Discover. $50 off on any water heater for ANGI customers. Military discounts available. Call today and schedule an appointment. **Rinnai products only** We also do the yearly maintenance and repairs.

"Very knowledgeable on the tankless water heater he attempted to repair but ultimately manufacturer supplied a brand new unit to us. All went smoothly once new unit was received. Great to have my hot water back!"

Ed F on April 2023


Avatar for Dean's Heating & Air Conditioning
Dean's Heating & Air Conditioning
PO Box 172
4.92(
54
)
Approved Pro
Dean's Heating & Air Conditioning
PO Box 172
4.92(
54
)
Approved Pro
Customers say: True professional
72 local quotes requested
37 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' 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.

"I was looking for a company to replace a 27 yr old HVVAC system that was acquired with the purchase of our new home. I took the time to evaluate and entertain 5 companies with their associated estimates including Deans Heating and Air Conditioning. In my research I found that Deans HVAC had received 5 star reviews from every client for whom they had serviced. After speaking with Mike the owner I was very impressed as he listened to what I was looking for and shared exemplary knowledge on what my HVAC project needed. Mike took time to answer all of my questions in addition to providing the best and most fair estimate in comparison to the other companies I had spoken with. Mike was very thorough and took care to make sure everything was installed with precision and a personal attention to detail. Even though our project had its own unique challenges, Mike and his assistant worked with efficiency and finished in a timely manner. Working with Deans Heating and Air Conditioning was an awesome and rewarding decision as we are very pleased with the installation of our new HVAC system. I would highly recommend Deans HVAC to everyone looking for a knowledgeable, fair priced , caring, and professional company to address their HVAC needs ranging from general services to full HVAC replacement projects. Definitely a FIVE STAR company!!!!!"

Mel D on April 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' 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.

"I was looking for a company to replace a 27 yr old HVVAC system that was acquired with the purchase of our new home. I took the time to evaluate and entertain 5 companies with their associated estimates including Deans Heating and Air Conditioning. In my research I found that Deans HVAC had received 5 star reviews from every client for whom they had serviced. After speaking with Mike the owner I was very impressed as he listened to what I was looking for and shared exemplary knowledge on what my HVAC project needed. Mike took time to answer all of my questions in addition to providing the best and most fair estimate in comparison to the other companies I had spoken with. Mike was very thorough and took care to make sure everything was installed with precision and a personal attention to detail. Even though our project had its own unique challenges, Mike and his assistant worked with efficiency and finished in a timely manner. Working with Deans Heating and Air Conditioning was an awesome and rewarding decision as we are very pleased with the installation of our new HVAC system. I would highly recommend Deans HVAC to everyone looking for a knowledgeable, fair priced , caring, and professional company to address their HVAC needs ranging from general services to full HVAC replacement projects. Definitely a FIVE STAR company!!!!!"

Mel D on April 2025


Avatar for Nick's Plumbing LLC
Nick's Plumbing LLC
1070 Barlow Two Taverns Rd
5.00(
5
)
Approved Pro
Nick's Plumbing LLC
1070 Barlow Two Taverns Rd
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

Nicks Plumbing LLC is a small family owned business located in Gettysburg,PA who takes pride in their workmanship as well as their cleanliness completing plumbing repairs. We service your plumbing from the well pump to the septic pump whether it's a simple faucet repair or a full well pump replacement we can help. The owner is the third generation of a family of plumbing professionals. If there is anything we can help you with we will be more than happy to assist you.

"Timely, dependable and convenient! I’d call Nick again for future plumbing projects"

Michelle H on November 2023

Nicks Plumbing LLC is a small family owned business located in Gettysburg,PA who takes pride in their workmanship as well as their cleanliness completing plumbing repairs. We service your plumbing from the well pump to the septic pump whether it's a simple faucet repair or a full well pump replacement we can help. The owner is the third generation of a family of plumbing professionals. If there is anything we can help you with we will be more than happy to assist you.

"Timely, dependable and convenient! I’d call Nick again for future plumbing projects"

Michelle H on November 2023


Pronto Plumbing & Drain, Inc.
1111 Primrose Ave
New on HomeAdvisorNew on Angi
Approved Pro
Pronto Plumbing & Drain, Inc.
1111 Primrose Ave
New on AngiNew on HomeAdvisor
Approved Pro
56 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!

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!


Avatar for Benjamin Franklin Plumbing
Benjamin Franklin Plumbing
518 Running Pump Road
4.57(
487
)
Approved Pro
Benjamin Franklin Plumbing
518 Running Pump Road
4.57(
487
)
Approved Pro
Customers say: Super punctual
247 local quotes requested
66 years of experience

Does your plumbing company solve your plumbing problems? At Benjamin Franklin Plumbing, your complete satisfaction with both our service and plumbers is 100% guaranteed. Our on-time guarantee is one of the best in the country, and backed by highly skilled plumbers that are expertly trained and experienced to exceed your expectations. Simply put, when you choose Benjamin Franklin Plumbing, for all your plumbing problems, you can�t lose.

"They did a good job."

Oscar G on April 2025

Does your plumbing company solve your plumbing problems? At Benjamin Franklin Plumbing, your complete satisfaction with both our service and plumbers is 100% guaranteed. Our on-time guarantee is one of the best in the country, and backed by highly skilled plumbers that are expertly trained and experienced to exceed your expectations. Simply put, when you choose Benjamin Franklin Plumbing, for all your plumbing problems, you can�t lose.

"They did a good job."

Oscar G on April 2025


Avatar for Jay Bee HVAC LLC
Jay Bee HVAC LLC
3513 Fox Pointe Lane
5.00(
16
)
Approved Pro
Jay Bee HVAC LLC
3513 Fox Pointe Lane
5.00(
16
)
Approved Pro
1 years of experience
Free onsite estimate

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

"Contacted Josh for a quote to have an ac unit / heat pump installed into our rancher style home. Josh came out timely to give my family an estimate. Work was completed as quoted and desired. Josh was very professional and gave us honest opinions on how the layout should be done. Price was more than fair. He cleaned up as he worked and had provided us with what were looking for at the end of the day. Would definitely have him back for future projects and would highly recommend for anyone looking to have this type of work done in their home. "

Ashley K on April 2025

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

"Contacted Josh for a quote to have an ac unit / heat pump installed into our rancher style home. Josh came out timely to give my family an estimate. Work was completed as quoted and desired. Josh was very professional and gave us honest opinions on how the layout should be done. Price was more than fair. He cleaned up as he worked and had provided us with what were looking for at the end of the day. Would definitely have him back for future projects and would highly recommend for anyone looking to have this type of work done in their home. "

Ashley K on April 2025


Avatar for H L Bowman
H L Bowman
2259 Woodlawn St
4.73(
383
)
Approved Pro
H L Bowman
2259 Woodlawn St
4.73(
383
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
4956 local quotes requested

HL Bowman has been in the same location for 38 years and owned by the same family for over 65 years. HL Bowman is a non commission based company. HL Bowman employees will never upsell you a product you don't need. Dennis and Bryan Enders and his family have deep roots in the Harrisburg community. After 65 years Dennis and family stay committed to giving the community the best possible service and product to fit their needs. HL Bowman has won Angie's List super service award every year.

"Quick to respond and honest about our options. Work was thoroughly explained."

Mackenzie H on March 2025

HL Bowman has been in the same location for 38 years and owned by the same family for over 65 years. HL Bowman is a non commission based company. HL Bowman employees will never upsell you a product you don't need. Dennis and Bryan Enders and his family have deep roots in the Harrisburg community. After 65 years Dennis and family stay committed to giving the community the best possible service and product to fit their needs. HL Bowman has won Angie's List super service award every year.

"Quick to respond and honest about our options. Work was thoroughly explained."

Mackenzie H on March 2025


Avatar for Lancaster Kitchens and Baths
Lancaster Kitchens and Baths
136 Main Street
5.00(
3
)
Approved Pro
Lancaster Kitchens and Baths
136 Main Street
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
491 local quotes requested

Specialists in complete kitchen and bathroom remodeling, Lancaster Kitchens and Baths can undertake any project from start to finish through a streamlined design-build process that makes your life easier while saving you both money and time. A quality personal touch is front and center of everything we do — delivering exquisite finishes and appealing designs that transform the look of your kitchen and bathrooms.

"Could not be happier!! Pleased with the entire team we worked with- Mark is gifted with tile!! Not only did the remodel the entire bathroom to the studs, the replaced apple in our kitchen at the same time… it’s like a brand new house!!"

Rebecca R on August 2023

Specialists in complete kitchen and bathroom remodeling, Lancaster Kitchens and Baths can undertake any project from start to finish through a streamlined design-build process that makes your life easier while saving you both money and time. A quality personal touch is front and center of everything we do — delivering exquisite finishes and appealing designs that transform the look of your kitchen and bathrooms.

"Could not be happier!! Pleased with the entire team we worked with- Mark is gifted with tile!! Not only did the remodel the entire bathroom to the studs, the replaced apple in our kitchen at the same time… it’s like a brand new house!!"

Rebecca R on August 2023


Avatar for Long Home Products
Long Home Products
301 Fulling Mill Rd
New on HomeAdvisorNew on Angi
Approved Pro
Long Home Products
301 Fulling Mill Rd
New on AngiNew on HomeAdvisor
Approved Pro
3572 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!

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!


Avatar for All American Contractor
All American Contractor
Servicing Around
4.83(
6
)
Approved Pro
All American Contractor
Servicing Around
4.83(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
208 local quotes requested

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"Job well done, only a few unforeseen obstacles but nothing major."

Josh R on January 2022

We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today.

"Job well done, only a few unforeseen obstacles but nothing major."

Josh R on January 2022

...
Showing 1-10 of 961

Tankless water heater installations FAQs

Yes, although they have a higher upfront cost compared to traditional units, tankless water heaters can be worth the investment for many homeowners. They heat water on demand, eliminating standby energy losses and leading to 24% to 34% greater energy efficiency for homes using up to 41 gallons of hot water daily. Tankless units last longer—around 20 years with proper maintenance—and require less space than traditional units. They also reduce the risk of leaks and water damage since there's no tank to corrode and fail.

Tankless water heaters, including gas-powered models, do require electricity to operate components like the ignition and control systems. This means they won't function during a power outage. If you live in an area prone to outages and want to ensure a continuous hot water supply, consider installing a battery backup system or generator to keep your tankless water heater running when the power goes out.

You should set your tankless water heater to 120 degrees Fahrenheit for optimal safety and efficiency, as recommended by the U.S. Consumer Product Safety Commission. Setting the temperature at 120 degrees prevents scalding accidents, particularly for children and the elderly, and reduces energy consumption. Temperatures above 140 degrees increase the risk of burns and promote mineral buildup, which can decrease the system's efficiency.

A 20-minute shower uses 50 to 60 gallons of water, assuming a flow rate of 2.5 to 3 gallons per minute. A typical whole-house tankless water heater can produce 4 to 8 gallons of hot water per minute, providing continuous hot water for long showers. By installing low-flow showerheads and reducing shower time, you decrease water consumption and energy costs, maximizing the efficiency of your tankless system.

With proper maintenance, a tankless water heater lasts around 20 years, significantly longer than conventional tank water heaters, which last between 8 and 12 years. Regular inspections and timely repairs can further extend its lifespan. To keep your tankless system operating efficiently, have it inspected or serviced annually and address any minor issues promptly by contacting a local tankless water heater repair service.

The homeowners guide to tankless water heater installations
From average costs to expert advice, get all the answers you need to get your job done.
A glass shower cabin in a spacious bathroom
Apr 23, 2025
Apr 23, 2025
In this guide, we'll break down the factors that influence shower installation costs, so you can make informed decisions and achieve the bathroom of your dreams.
Sump pump at home
Apr 24, 2025
Apr 24, 2025
Budget for sump pump replacement costs based on factors such as sump pump type, its location in your home, ongoing maintenance, labor, and more.
professional inspecting sewer with borescope camera
Apr 24, 2025
Apr 24, 2025
Budget for sewer line camera inspection costs based on factors such as sewer length, camera type, method, accessibility, repairs, labor, and more.
outdoor water lines with backflow preventer
Apr 21, 2025
Apr 21, 2025
Backflow preventer costs depend on type, size, location, and labor costs. This guide breaks down the cost factors to help you budget.
plumber cleaning a home sewer line in yard
Apr 22, 2025
Apr 22, 2025
Budget for main sewer line clog repair costs based on factors such as cleaning method, sewer age, project complexity, permits, labor, and more.
water faucet on exterior of brick house
Apr 22, 2025
Apr 22, 2025
Budget for the cost to replace a hose bib based on factors such as faucet type, location, plumbing line installation, permits, labor, and more.
Share project details to get started.