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 Fairfax

Avatar for RightNOW Plumbing
RightNOW Plumbing
11047 Pierson Drive Suite G
4.74(
940
)
Approved Pro
RightNOW Plumbing
11047 Pierson Drive Suite G
4.74(
940
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
331 local quotes requested

At RightNOW Plumbing, we specialize in water heater repair & installation. We are Northern Virginia's premier water heater experts and the area's leading Tankless installer. We have established ourselves as the go to company for quality work and outstanding customer service. Whether it is a repair, installation or conversion to tankless, we will leave you with a smile when the job is done. We are ready to take on any water heater project and deliver results you will be proud of. We know that it takes more than just materials, tools, and skill to deliver outstanding results. That is why we are committed to unsurpassed customer service. We will not be satisfied until you are, that is our promise.

"Was professional, timely and in contact throughout the process."

p k on April 2025

At RightNOW Plumbing, we specialize in water heater repair & installation. We are Northern Virginia's premier water heater experts and the area's leading Tankless installer. We have established ourselves as the go to company for quality work and outstanding customer service. Whether it is a repair, installation or conversion to tankless, we will leave you with a smile when the job is done. We are ready to take on any water heater project and deliver results you will be proud of. We know that it takes more than just materials, tools, and skill to deliver outstanding results. That is why we are committed to unsurpassed customer service. We will not be satisfied until you are, that is our promise.

"Was professional, timely and in contact throughout the process."

p k on April 2025


Avatar for Appleton Campbell, Inc.
Appleton Campbell, Inc.
285 Alwington Blvd
4.70(
46
)
Approved Pro
Appleton Campbell, Inc.
285 Alwington Blvd
4.70(
46
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
126 local quotes requested

Appleton Campbell is the local name you can count on for all of your plumbing, heating, cooling and electrical needs.

"Yes the job was completed and worked. The plumber that they sent out was not professional."

Gail D on February 2025

Appleton Campbell is the local name you can count on for all of your plumbing, heating, cooling and electrical needs.

"Yes the job was completed and worked. The plumber that they sent out was not professional."

Gail D on February 2025


Avatar for Family Fire Service and Plumbing LLC
Family Fire Service and Plumbing LLC
5006 Aspen Hill Rd
4.20(
5
)
Approved Pro
Family Fire Service and Plumbing LLC
5006 Aspen Hill Rd
4.20(
5
)
Approved Pro
Customers say: Quick response
43 local quotes requested
2 years of experience

We are in the industry providing plumbing and fire protection systems to residents and businesses in and around Maryland for over 22 years. During all this time we were working to improve customer satisfaction before, during and after the service based on our agile management, trained team and quality materials. Now, years of experience in the market allows us to guarantee that our work will be of the highest quality.

"Job was performed on time and at the price quoted. The quality of the service is excellent! The pro was courteous and easy to work with."

Khalil A on April 2025

We are in the industry providing plumbing and fire protection systems to residents and businesses in and around Maryland for over 22 years. During all this time we were working to improve customer satisfaction before, during and after the service based on our agile management, trained team and quality materials. Now, years of experience in the market allows us to guarantee that our work will be of the highest quality.

"Job was performed on time and at the price quoted. The quality of the service is excellent! The pro was courteous and easy to work with."

Khalil A on April 2025


Avatar for Kozan Construction, LLC
Kozan Construction, LLC
4584 Cornell Drive
4.70(
23
)
Approved Pro
Kozan Construction, LLC
4584 Cornell Drive
4.70(
23
)
Approved Pro
Customers say: True professional
40 years of experience
Free onsite estimate

We have over 10 years of experience in the business. Here at Kozan Construction, LLC, 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!

"I want a new look of my kitchen, and they were amazing work done. I just love the result. Great service.."

Nikki P on April 2024

We have over 10 years of experience in the business. Here at Kozan Construction, LLC, 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!

"I want a new look of my kitchen, and they were amazing work done. I just love the result. Great service.."

Nikki P on April 2024


Avatar for Advanced Environment Solutions, Inc.
Advanced Environment Solutions, Inc.
5 Le Way Drive
4.91(
88
)
Approved Pro
Advanced Environment Solutions, Inc.
5 Le Way Drive
4.91(
88
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
35 local quotes requested

Advanced Environment Solutions, Inc., is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Advanced Environment Solutions, Inc., is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"From the moment I received a call from Tammy at Advanced Environment Solutions Inc. (AES), I knew I was dealing with a company that stands out from the rest. We had been shopping around for HVAC replacement quotes, and to our surprise, AES offered an over-the-phone estimate that was a staggering $7,000 less than any other quote we had received. This wasn't just a promise; it was a reality that they delivered on with professionalism and integrity. The process was seamless. After a quick confirmation visit by their technician to verify our unit size, everything was set in motion. On the day of installation, despite the sweltering heat, AES's teams worked with remarkable efficiency. One team expertly removed our old unit, and almost immediately, another arrived with the new one. The entire replacement was completed in a single day, leaving us both amazed and immensely grateful. The staff at AES were not only professional but also incredibly courteous and knowledgeable. They explained each step of the process, ensuring we understood everything. The quality of the new HVAC unit they installed surpasses any expectations we had, offering superior performance and energy efficiency. What's most puzzling and impressive is how AES manages to undercut competitors by such a significant margin while providing top-notch service and quality. This is a testament to their business model, which prioritizes customer satisfaction and ethical pricing. We highly recommend Advanced Environment Solutions Inc. to anyone in need of HVAC services. Their commitment to excellence, combined with unbeatable pricing, makes them the go-to choice. Contact AES, and like us, you'll discover why they are simply awesome!"

Don W on October 2024

Advanced Environment Solutions, Inc., is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Advanced Environment Solutions, Inc., is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

"From the moment I received a call from Tammy at Advanced Environment Solutions Inc. (AES), I knew I was dealing with a company that stands out from the rest. We had been shopping around for HVAC replacement quotes, and to our surprise, AES offered an over-the-phone estimate that was a staggering $7,000 less than any other quote we had received. This wasn't just a promise; it was a reality that they delivered on with professionalism and integrity. The process was seamless. After a quick confirmation visit by their technician to verify our unit size, everything was set in motion. On the day of installation, despite the sweltering heat, AES's teams worked with remarkable efficiency. One team expertly removed our old unit, and almost immediately, another arrived with the new one. The entire replacement was completed in a single day, leaving us both amazed and immensely grateful. The staff at AES were not only professional but also incredibly courteous and knowledgeable. They explained each step of the process, ensuring we understood everything. The quality of the new HVAC unit they installed surpasses any expectations we had, offering superior performance and energy efficiency. What's most puzzling and impressive is how AES manages to undercut competitors by such a significant margin while providing top-notch service and quality. This is a testament to their business model, which prioritizes customer satisfaction and ethical pricing. We highly recommend Advanced Environment Solutions Inc. to anyone in need of HVAC services. Their commitment to excellence, combined with unbeatable pricing, makes them the go-to choice. Contact AES, and like us, you'll discover why they are simply awesome!"

Don W on October 2024


Avatar for Nikan Plumbing Services LLC
Nikan Plumbing Services LLC
43969 Championship Pl
5.00(
6
)
Approved Pro
Nikan Plumbing Services LLC
43969 Championship Pl
5.00(
6
)
Approved Pro
10 years of experience
Free onsite estimate

We’re dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. 

"I have used their services several times, they exceeded all my expectations, they were reliable,honest and their workmanship was outstanding. I highly recommend them."

Robert S on March 2025

We’re dedicated to providing our clients with the very best in service, installation, and repair for all phases of your plumbing needs. We specialize in a variety of residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. 

"I have used their services several times, they exceeded all my expectations, they were reliable,honest and their workmanship was outstanding. I highly recommend them."

Robert S on March 2025


Avatar for Dexter Wells & Plumbing, LLC
Dexter Wells & Plumbing, LLC
14332 Rixeyville Rd.
4.57(
14
)
Approved Pro
Dexter Wells & Plumbing, LLC
14332 Rixeyville Rd.
4.57(
14
)
Approved Pro
Customers say: Quick response
99 local quotes requested
42 years of experience

Dexter Wells & Plumbing, LLC in Culpeper and Staunton VA strive at giving you our best services. We stock the best pumps and tanks we can find. Full systems get a 5 year parts and labor warranty. We also offer water treatment with free evaluation on sight. There is never a fee for estimate’s. No water calls with livestock are same day service. We stock the best pumps we can get and bring them to you at a flat rate.

"John was very responsive, prompt, and fair with competitive pricing. I will call him for future needs and recommend to neighbors and friends."

Dennis F on November 2022

Dexter Wells & Plumbing, LLC in Culpeper and Staunton VA strive at giving you our best services. We stock the best pumps and tanks we can find. Full systems get a 5 year parts and labor warranty. We also offer water treatment with free evaluation on sight. There is never a fee for estimate’s. No water calls with livestock are same day service. We stock the best pumps we can get and bring them to you at a flat rate.

"John was very responsive, prompt, and fair with competitive pricing. I will call him for future needs and recommend to neighbors and friends."

Dennis F on November 2022


Avatar for Woodbridge Plumbing Inc
Woodbridge Plumbing Inc
2705 Code Way
4.82(
471
)
Approved Pro
Woodbridge Plumbing Inc
2705 Code Way
4.82(
471
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
784 local quotes requested

Woodbridge Plumbing Inc has been in business since Tom and Anne Kreutzer started it in 1973 in the basement of a house on Occoquan Road with just one plumber, Tom. After three years Tom hired his first employee, David McCullen, who stayed with him until Tom and Anne sold the business in October, 2006. As the business grew, it moved first to a rented space at Canfield Industrial Park for nine years, and then to the current office and warehouse in Telegraph Road Business Park in January, 1987, across Telegraph Road from the back of Target.

"AV was extremely helpful, put in the time to get everything right. And when I had a further question after the repairs, he called me back promptly. The office staff also has been unfailingly helpful and responsive."

patricia e on August 2020

Woodbridge Plumbing Inc has been in business since Tom and Anne Kreutzer started it in 1973 in the basement of a house on Occoquan Road with just one plumber, Tom. After three years Tom hired his first employee, David McCullen, who stayed with him until Tom and Anne sold the business in October, 2006. As the business grew, it moved first to a rented space at Canfield Industrial Park for nine years, and then to the current office and warehouse in Telegraph Road Business Park in January, 1987, across Telegraph Road from the back of Target.

"AV was extremely helpful, put in the time to get everything right. And when I had a further question after the repairs, he called me back promptly. The office staff also has been unfailingly helpful and responsive."

patricia e on August 2020


Avatar for Century Bathrooms & Kitchens
Century Bathrooms & Kitchens
11325 Lee Highway
4.93(
72
)
Approved Pro
Century Bathrooms & Kitchens
11325 Lee Highway
4.93(
72
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
553 local quotes requested

Century Bathrooms & Kitchens is a family owned and operated full service bathroom & kitchen remodeling company. We specialize in designing and remodeling services that reflect a high level of quality, functionality and design. We strive to successfully meet your remodeling needs in a timely manner, by working closely with you during the entire remodeling process. As a small company with over 20 years of specialized expertise and industry experience, we take pride in our ability to provide professional and personalized service while never compromising the quality of our work. We look forward to working with you and are confident that we will exceed your expectations and make your vision a reality!

"We were so happy with our bathroom remodels done in December by Century Bathrooms and Kitchens. From the start we were really impressed with Daniel and Erika and their friendly, down-to-earth demeanor, and their intentionality to listen to our thoughts and show us the overwhelming options. They were great at communicating throughout the whole project, very knowledgable and thorough. Their work crews were friendly, professional, amazingly clean, conscientious, hard-working, and detail-oriented in every regard of their work. They were originally scheduled to start the work after the new year, but in the end they were able to bump up both of our bathroom remodels to the 3 weeks leading up to Christmas, and they blew us away with how quickly they were able to get the projects completed. Our bathrooms are beautiful, and we really couldn't be happier. Highly recommend Century Bathrooms and Kitchen."

Amy C on January 2025

Century Bathrooms & Kitchens is a family owned and operated full service bathroom & kitchen remodeling company. We specialize in designing and remodeling services that reflect a high level of quality, functionality and design. We strive to successfully meet your remodeling needs in a timely manner, by working closely with you during the entire remodeling process. As a small company with over 20 years of specialized expertise and industry experience, we take pride in our ability to provide professional and personalized service while never compromising the quality of our work. We look forward to working with you and are confident that we will exceed your expectations and make your vision a reality!

"We were so happy with our bathroom remodels done in December by Century Bathrooms and Kitchens. From the start we were really impressed with Daniel and Erika and their friendly, down-to-earth demeanor, and their intentionality to listen to our thoughts and show us the overwhelming options. They were great at communicating throughout the whole project, very knowledgable and thorough. Their work crews were friendly, professional, amazingly clean, conscientious, hard-working, and detail-oriented in every regard of their work. They were originally scheduled to start the work after the new year, but in the end they were able to bump up both of our bathroom remodels to the 3 weeks leading up to Christmas, and they blew us away with how quickly they were able to get the projects completed. Our bathrooms are beautiful, and we really couldn't be happier. Highly recommend Century Bathrooms and Kitchen."

Amy C on January 2025


Avatar for R O Hutchinson LLC
R O Hutchinson LLC
4.56(
9
)
Approved Pro
R O Hutchinson LLC
4.56(
9
)
Approved Pro
Customers say: Quick response
235 local quotes requested
24 years of experience

At R O Hutchinson LLC, we specialize in transforming spaces to meet your unique needs. Based in Upper Marlboro, MD, our expert team focuses on premier residential Remodeling. We excel in kitchen and bathroom remodels, flooring installations, and comprehensive basement renovations. With a strong reputation built on service, safety, and quality, RO Hutchinson LLC places utmost priority on customer satisfaction and delivering excellent workmanship from start to completion of every project. Our commitment is to understand the needs and expectations of our customers, communicate professionally, and get the job done right the first time.

"Our family home has always been clean and functional but after thirty years it had become more a picture postcard from the 1980’s than the warm inviting image we had in our mind. It was obviously time to update. Unfortunately, after talking with numerous contractors, it seemed we would have to reduce our expectations or spend more than we had budgeted to afford remodeling our “dining room, living room, kitchen” (and eventually bathrooms too!) project. While pondering our next move a family friend told us they recently had Rohan remodel their kitchen/living space and it looked great and was, they thought, affordable. After seeing for ourselves the quality of workmanship, the improvements to ‘flow and functionality’ and the overall aesthetic appeal, we decided to give Rohan a call. Boy are we glad we did! Upon meeting Rohan for the first time we were shown the same optimism, knowledge through experience, flexibility of thought and dedication to quality that would continue straight through to the end of our multi-week project. His proposal/estimate covered all our wants and needs while fitting within our budget. The job was a total re-do and from floors to walls to counters to cabinets to plumbing to electrics and all were handled by Rohan and his team with time honed skill. The work was done in a timely fashion without ever leaving us wondering where people were or what they were going to be doing each step of the way. Every eventual ‘architectural surprise’ was met with candor, budgeted creativity and a hearty “no problem!” In the end our home was transformed ergonomically, aesthetically and affordably into a beautiful space where family and friends gather in happiness and in harmony with their surroundings. If you are considering remodeling your home we urge you to give Rohan a call. Boy will you be glad you did! "

Dave H on January 2025

At R O Hutchinson LLC, we specialize in transforming spaces to meet your unique needs. Based in Upper Marlboro, MD, our expert team focuses on premier residential Remodeling. We excel in kitchen and bathroom remodels, flooring installations, and comprehensive basement renovations. With a strong reputation built on service, safety, and quality, RO Hutchinson LLC places utmost priority on customer satisfaction and delivering excellent workmanship from start to completion of every project. Our commitment is to understand the needs and expectations of our customers, communicate professionally, and get the job done right the first time.

"Our family home has always been clean and functional but after thirty years it had become more a picture postcard from the 1980’s than the warm inviting image we had in our mind. It was obviously time to update. Unfortunately, after talking with numerous contractors, it seemed we would have to reduce our expectations or spend more than we had budgeted to afford remodeling our “dining room, living room, kitchen” (and eventually bathrooms too!) project. While pondering our next move a family friend told us they recently had Rohan remodel their kitchen/living space and it looked great and was, they thought, affordable. After seeing for ourselves the quality of workmanship, the improvements to ‘flow and functionality’ and the overall aesthetic appeal, we decided to give Rohan a call. Boy are we glad we did! Upon meeting Rohan for the first time we were shown the same optimism, knowledge through experience, flexibility of thought and dedication to quality that would continue straight through to the end of our multi-week project. His proposal/estimate covered all our wants and needs while fitting within our budget. The job was a total re-do and from floors to walls to counters to cabinets to plumbing to electrics and all were handled by Rohan and his team with time honed skill. The work was done in a timely fashion without ever leaving us wondering where people were or what they were going to be doing each step of the way. Every eventual ‘architectural surprise’ was met with candor, budgeted creativity and a hearty “no problem!” In the end our home was transformed ergonomically, aesthetically and affordably into a beautiful space where family and friends gather in happiness and in harmony with their surroundings. If you are considering remodeling your home we urge you to give Rohan a call. Boy will you be glad you did! "

Dave H on January 2025

...
Showing 1-10 of 802

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.
Beautiful large white bathroom
Apr 30, 2025
Apr 30, 2025
Budget for walk-in bathtub costs based on factors such as bathtub type, labor, plumbing and electrical work, additional accessibility features, and more.
marble kitchen counter with gold faucet
Apr 28, 2025
Apr 28, 2025
Explore the average cost to replace a kitchen faucet with a professional plumber based on factors like faucet type, features, labor, and unexpected costs.
Toilet and bidet in bathroom
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bidet installation costs based on factors such as bidet type, attachments, features, parts, labor, and more.
plumber installing sewer main pipes in the ground
Apr 25, 2025
Apr 25, 2025
Understand what goes into installing a sewer line, including materials, labor, permits, and potential landscaping considerations, to ensure a smooth and compliant connection to your local sewer system.
water main being repaired by plumbers
Apr 24, 2025
Apr 24, 2025
Main water line leak repair costs depend on how much of the line needs repair and other factors. Learn what influences the price before you take on this project.
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.
Share project details to get started.