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 Hockessin

Avatar for Done Right Today, Inc.
Done Right Today, Inc.
473 Old Airport Rd
4.86(
512
)
Approved Pro
Done Right Today, Inc.
473 Old Airport Rd
4.86(
512
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
755 local quotes requested

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.

"Na"

John O on February 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.

"Na"

John O on February 2025


Avatar for Mr. Rooter Plumbing of Newark
Mr. Rooter Plumbing of Newark
250 Corporate Blvd Suite D
4.55(
164
)
Approved Pro
Mr. Rooter Plumbing of Newark
250 Corporate Blvd Suite D
4.55(
164
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
10 local quotes requested

Mr. Rooter Plumbing of Newark is the trusted local name for plumbing services in Middletown, Bear, and throughout the area. We strive for excellence in every job, from leaky pipes to clogged drains and a number of other plumbing issues. Our experienced plumbing experts are quick and courteous, providing thorough inspections, insightful diagnoses, and top-quality repairs at affordable rates. We also offer maintenance services, such as drain cleaning, to minimize future plumbing issues and keep you plumbing system in peak condition. For residential or commercial plumbing services in Delaware.

"Friendly, informative and did the work quickly!"

Tina B on March 2021

Mr. Rooter Plumbing of Newark is the trusted local name for plumbing services in Middletown, Bear, and throughout the area. We strive for excellence in every job, from leaky pipes to clogged drains and a number of other plumbing issues. Our experienced plumbing experts are quick and courteous, providing thorough inspections, insightful diagnoses, and top-quality repairs at affordable rates. We also offer maintenance services, such as drain cleaning, to minimize future plumbing issues and keep you plumbing system in peak condition. For residential or commercial plumbing services in Delaware.

"Friendly, informative and did the work quickly!"

Tina B on March 2021


Avatar for Delaware Plumbing Professionals
Delaware Plumbing Professionals
300 E AYRE ST
4.66(
179
)
Approved Pro
Delaware Plumbing Professionals
300 E AYRE ST
4.66(
179
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
856 local quotes requested

We take great pride in being family owned and operated. Our mission is to provide our customers with exceptional service while delivering top-notch quality. Our reputation is based on the service and quality we provide, as well as the safety of our customers and their homes. We strive for transparency throughout your entire experience with our company and as well, promise to be upfront and honest. We treat your home like our home. Call us today for Better Service, Better Price, Better Value!

"Highly NOT Recommended! I have used Delaware Plumbing Professionals more than once. The first time, although not inexpensive, the job was done well. The second time, I called them to diagnose a problem with my sump pump. The pump was only one year old and was malfunctioning. I was told that, since they didn’t install the pump, the only option they could offer was to install a brand-new pump, which would cost around $2,000. I said, "Thank you," paid $65 for the visit, and that was it. The pump was later fixed with a simple tweak. Today, I called them for the third time to look at a leaking shower and a leaking garbage disposal. I was informed that to change the leaking gasket at the top of the disposal, they would charge me the price of a full disposal replacement, which is over $450, for less than one hour worth of work (I asked). As for the leaking shower, even though I clearly identified the leaking plunger (a $20 part), I was told they couldn’t address it and could only offer a replacement of the entire shower valve inside the wall, which I assume would be a job costing a few thousand dollars. Wasted another $65 for their useless visit."

soraya G on October 2024

We take great pride in being family owned and operated. Our mission is to provide our customers with exceptional service while delivering top-notch quality. Our reputation is based on the service and quality we provide, as well as the safety of our customers and their homes. We strive for transparency throughout your entire experience with our company and as well, promise to be upfront and honest. We treat your home like our home. Call us today for Better Service, Better Price, Better Value!

"Highly NOT Recommended! I have used Delaware Plumbing Professionals more than once. The first time, although not inexpensive, the job was done well. The second time, I called them to diagnose a problem with my sump pump. The pump was only one year old and was malfunctioning. I was told that, since they didn’t install the pump, the only option they could offer was to install a brand-new pump, which would cost around $2,000. I said, "Thank you," paid $65 for the visit, and that was it. The pump was later fixed with a simple tweak. Today, I called them for the third time to look at a leaking shower and a leaking garbage disposal. I was informed that to change the leaking gasket at the top of the disposal, they would charge me the price of a full disposal replacement, which is over $450, for less than one hour worth of work (I asked). As for the leaking shower, even though I clearly identified the leaking plunger (a $20 part), I was told they couldn’t address it and could only offer a replacement of the entire shower valve inside the wall, which I assume would be a job costing a few thousand dollars. Wasted another $65 for their useless visit."

soraya G on October 2024


Avatar for Apex Home Remodeling
Apex Home Remodeling
5.00(
1
)
Approved Pro
Apex Home Remodeling
5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
591 local quotes requested

Hi! We are Apex Home Remodeling! We are a full-service contractor specializing in Kitchens, Bathrooms, Additions, Basements, Decks & Fences, Doors & Windows, AND much more! Refresh Your Home & Refresh Your Mind With Apex!

"Great work, highly recommended!! Apex renovated all of the bathrooms in our home down to the studs and completely redid them for us, one of which included moving a wall and layout change to expand. From beginning to end, Mike and his team were a pleasure to work with. We received detailed cost estimates that were accurate and competitive with other contractors we spoke to. The level of protection that was installed was top notch. We did not have any dust in areas outside of the work area and Mike and his team were always careful to clean and keep the protection clean which was fantastic. The quality of the work was excellent, I couldn’t find a single issue when work was complete. Mike did a great job communicating with us on decisions we had to make and the schedule for the work throughout the project. We love the result of our bathrooms and had a great experience working with Apex!"

Jennifer B on June 2024

Hi! We are Apex Home Remodeling! We are a full-service contractor specializing in Kitchens, Bathrooms, Additions, Basements, Decks & Fences, Doors & Windows, AND much more! Refresh Your Home & Refresh Your Mind With Apex!

"Great work, highly recommended!! Apex renovated all of the bathrooms in our home down to the studs and completely redid them for us, one of which included moving a wall and layout change to expand. From beginning to end, Mike and his team were a pleasure to work with. We received detailed cost estimates that were accurate and competitive with other contractors we spoke to. The level of protection that was installed was top notch. We did not have any dust in areas outside of the work area and Mike and his team were always careful to clean and keep the protection clean which was fantastic. The quality of the work was excellent, I couldn’t find a single issue when work was complete. Mike did a great job communicating with us on decisions we had to make and the schedule for the work throughout the project. We love the result of our bathrooms and had a great experience working with Apex!"

Jennifer B on June 2024


Avatar for G D Rhoads Co
G D Rhoads Co
156 Bridle Path Ln
4.70(
20
)
Approved Pro
G D Rhoads Co
156 Bridle Path Ln
4.70(
20
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
189 local quotes requested

Full service remodeling and renovation contractor specializing in custom kitchens and bathrooms, finished basements and much more. Williamson Trade School graduate

"Team did a great job from setting up keeping the area clean. They did quality work. We’re very happy with everything."

Don R on April 2023

Full service remodeling and renovation contractor specializing in custom kitchens and bathrooms, finished basements and much more. Williamson Trade School graduate

"Team did a great job from setting up keeping the area clean. They did quality work. We’re very happy with everything."

Don R on April 2023


Avatar for Donewell Professional Services LLC
Donewell Professional Services LLC
1024 Greene Lane
5.00(
30
)
Approved Pro
Donewell Professional Services LLC
1024 Greene Lane
5.00(
30
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2185 local quotes requested

Transforming Spaces with a Smile About Us: Welcome to Donewell Professional Services LLC! Since 2021, we've been bringing a fresh touch to construction, specializing in everything from handy fixes to medium-sized makeovers. Our Services: 1. **Small Repairs, Big Solutions:** Tackling the nitty-gritty with precision and care – because even small things deserve top-notch attention. 2. **Mid-Size Remodeling Delight:** Elevate your space with our remodeling expertise. We make upgrades easy and enjoyable. *Where We Operate:* Proudly serving homes in: - **New Jersey** - **Pennsylvania** - **Delaware** *Why Choose Donewell:* - **Craftsmanship You Can Count On:** Quality work is our signature. Your project is in good hands. - **Customer-Focused Approach:** We're not just builders; we're listeners. Your vision guides our process. - **Timely, Every Time:** We respect your time. Expect not just completion but completion with efficiency. Choose Donewell Professional Services LLC – where your project gets the attention it deserves, delivered with a friendly touch. ️

"I would give Derrick 10 stars if it were an option. Thank you for the dedication to completing my job to our satisfaction! I will definitely to hire Derrick for future jobs around my home. Not only is he an extremely nice man, he is prompt, reliable, professional and courteous. His work ethic is outstanding. I highly recommend Donewell Professional Services!"

Marsha D on October 2024

Transforming Spaces with a Smile About Us: Welcome to Donewell Professional Services LLC! Since 2021, we've been bringing a fresh touch to construction, specializing in everything from handy fixes to medium-sized makeovers. Our Services: 1. **Small Repairs, Big Solutions:** Tackling the nitty-gritty with precision and care – because even small things deserve top-notch attention. 2. **Mid-Size Remodeling Delight:** Elevate your space with our remodeling expertise. We make upgrades easy and enjoyable. *Where We Operate:* Proudly serving homes in: - **New Jersey** - **Pennsylvania** - **Delaware** *Why Choose Donewell:* - **Craftsmanship You Can Count On:** Quality work is our signature. Your project is in good hands. - **Customer-Focused Approach:** We're not just builders; we're listeners. Your vision guides our process. - **Timely, Every Time:** We respect your time. Expect not just completion but completion with efficiency. Choose Donewell Professional Services LLC – where your project gets the attention it deserves, delivered with a friendly touch. ️

"I would give Derrick 10 stars if it were an option. Thank you for the dedication to completing my job to our satisfaction! I will definitely to hire Derrick for future jobs around my home. Not only is he an extremely nice man, he is prompt, reliable, professional and courteous. His work ethic is outstanding. I highly recommend Donewell Professional Services!"

Marsha D on October 2024


Avatar for Done Right Today
Done Right Today
19 Germay Drive
4.98(
62
)
Approved Pro
Done Right Today
19 Germay Drive
4.98(
62
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
972 local quotes requested

Done Right Today is FAST, FRIENDLY, & AFFORDABLE. We are always available to provide plumbing and drain cleaning services at a time that is confident for you. Locallly owned and operated out of Delaware. Call today!!!

"Fabulous! We needed our water conditioner serviced and other company wouldn't touch it because they didn't install it and just wanted to sell us a new one. Rebecca scheduled us for the following day! Steve Venditti was great, has 20 years of experience and knew what he was doing. He spoke with the manufacturer and they decided what needed to be done. He had the parts on his truck and 4 hours later the job was done. $500 included parts and labor and service call. Very fair price and excellent service. Totally professional. Highly recommend."

Neil K on January 2025

Done Right Today is FAST, FRIENDLY, & AFFORDABLE. We are always available to provide plumbing and drain cleaning services at a time that is confident for you. Locallly owned and operated out of Delaware. Call today!!!

"Fabulous! We needed our water conditioner serviced and other company wouldn't touch it because they didn't install it and just wanted to sell us a new one. Rebecca scheduled us for the following day! Steve Venditti was great, has 20 years of experience and knew what he was doing. He spoke with the manufacturer and they decided what needed to be done. He had the parts on his truck and 4 hours later the job was done. $500 included parts and labor and service call. Very fair price and excellent service. Totally professional. Highly recommend."

Neil K on January 2025


Avatar for Horizon Services
Horizon Services
320 CENTURY BLVD
4.37(
97
)
Approved Pro
Horizon Services
320 CENTURY BLVD
4.37(
97
)
Approved Pro
Customers say: Super punctual
1048 local quotes requested
Free onsite estimate

When you need AC heating or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing heating, and air conditioning, offering an unmatched level of service at reasonable rates.

"Less than 5 years ago, I spent in excess of $10,000 to have a new unit installed with a 10 year warranty. I should have seen the red flags from the very beginning. The sales representative told us additional vents would be installed and when the installation crew showed up, that did not happen. Fast forward to the present and I am now on my 4th phone call for an appointment this season, 3 days so far of not being able to work as I waited for a technician to come diagnose the problem. The 3rd. tech came last night and indicated that the work the other tech did was not for the root of the problem. (I was told in front of witnesses that the work needed to be done, was not covered under warranty, would cost me $367 and would fix my issues)In fact, the 3rd tech only made the issue worse by leaving our attic return unscrewed and overfilling our unit with Freon that the 4th tech had to remove from our system. Upon leaving last night I was told that everything was corrected. Today - my home is slowly creeping up in temperature (presently 80 degrees inside, while set to 72). The company keeps trying to sell me a "maintenance plan" and I keep reiterating to EVERY one who pushes it that we have been getting tune ups/cleanings elsewhere and will only use them for warranty issues since we have had NOTHING but problems with them."

Jacqueline G on July 2024

When you need AC heating or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing heating, and air conditioning, offering an unmatched level of service at reasonable rates.

"Less than 5 years ago, I spent in excess of $10,000 to have a new unit installed with a 10 year warranty. I should have seen the red flags from the very beginning. The sales representative told us additional vents would be installed and when the installation crew showed up, that did not happen. Fast forward to the present and I am now on my 4th phone call for an appointment this season, 3 days so far of not being able to work as I waited for a technician to come diagnose the problem. The 3rd. tech came last night and indicated that the work the other tech did was not for the root of the problem. (I was told in front of witnesses that the work needed to be done, was not covered under warranty, would cost me $367 and would fix my issues)In fact, the 3rd tech only made the issue worse by leaving our attic return unscrewed and overfilling our unit with Freon that the 4th tech had to remove from our system. Upon leaving last night I was told that everything was corrected. Today - my home is slowly creeping up in temperature (presently 80 degrees inside, while set to 72). The company keeps trying to sell me a "maintenance plan" and I keep reiterating to EVERY one who pushes it that we have been getting tune ups/cleanings elsewhere and will only use them for warranty issues since we have had NOTHING but problems with them."

Jacqueline G on July 2024


Avatar for Joe Georgini Plumbing & Heating
Joe Georgini Plumbing & Heating
Serving Pennsylvania & Delaware
4.87(
186
)
Approved Pro
Joe Georgini Plumbing & Heating
Serving Pennsylvania & Delaware
4.87(
186
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
359 local quotes requested

Joseph Georgini Plumbing is built on quality trustworthy service with very low rates. I personally work on every job to insure quality. We service all of Chester, Delaware,& Montgomery Counties, the Main Line, Philadelphia & The Entire State of Delaware. Senior Citizen Discounts Pennsylvania State License Number 079266. Delaware State License Number 2013601516. 24 hour direct phone # 610-357-0998

"Joe provided it fast and professional service. I've dealt with several plumbers and paid them twice as much, and they did not provide, it's a superior service, as Joe did. As a new homeowner, I feel it is important to have a trustworthy thing. Plumber, and he is one, it's that I will validate any day. Great service, fast response time and all together, great guy! I would refer his services to anyone."

Chanel D on January 2025

Joseph Georgini Plumbing is built on quality trustworthy service with very low rates. I personally work on every job to insure quality. We service all of Chester, Delaware,& Montgomery Counties, the Main Line, Philadelphia & The Entire State of Delaware. Senior Citizen Discounts Pennsylvania State License Number 079266. Delaware State License Number 2013601516. 24 hour direct phone # 610-357-0998

"Joe provided it fast and professional service. I've dealt with several plumbers and paid them twice as much, and they did not provide, it's a superior service, as Joe did. As a new homeowner, I feel it is important to have a trustworthy thing. Plumber, and he is one, it's that I will validate any day. Great service, fast response time and all together, great guy! I would refer his services to anyone."

Chanel D on January 2025


Avatar for Peninsula Bath
Peninsula Bath
36893 Bi State Blvd
5.00(
4
)
Approved Pro
Peninsula Bath
36893 Bi State Blvd
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
684 local quotes requested

Peninsula Bath is locally owned and operated. We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has over 20 years experience in the bathroom business which will give you the best customer service and we only offer the best products in the industry. We make sure our customers are happy before we leave! Call or click to schedule a free estimate today or if you have questions about our in house financing and our low price guarantee!

"It went well. The installer was always punctual, professional and personable. Work was completed in a timely manner and the clean up was exceptional."

Catherine P on November 2022

Peninsula Bath is locally owned and operated. We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has over 20 years experience in the bathroom business which will give you the best customer service and we only offer the best products in the industry. We make sure our customers are happy before we leave! Call or click to schedule a free estimate today or if you have questions about our in house financing and our low price guarantee!

"It went well. The installer was always punctual, professional and personable. Work was completed in a timely manner and the clean up was exceptional."

Catherine P on November 2022

...
Showing 1-10 of 968

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 man installs a new shower
Apr 17, 2025
Apr 17, 2025
A shower remodel can completely transform your bathroom. Start budgeting for shower remodel costs and get ready for the shower of your dreams.
A stylish toilet in bathroom
Apr 1, 2025
Apr 1, 2025
Budget for sewer ejector pump costs based on factors such as pump capacity, pump material, maintenance, professional labor, and more.
new toilet in modern bathroom
Mar 31, 2025
Mar 31, 2025
Learn how much toilet installation costs, exploring factors like labor, plumbing, removal fees, and additional expenses.
A drop of pure water dripping from the tap
Mar 28, 2025
Mar 28, 2025
The cost to fix a leaky faucet depends on the type of faucet, the cause of the leak, and the necessary parts. Most homeowners spend an average of $270 on this project.
Rainwater barrel in the garden
Mar 26, 2025
Mar 26, 2025
Explore the landscape of rainwater collection system costs and see how system size, storage location, and filtration impact your total investment.
Leaking water from a blue pipe underground
Mar 23, 2025
Mar 23, 2025
Use this guide to budget for slab leak repair costs based on factors like professional labor, detection, repair type, and related services.
Share project details to get started.