Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros 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 repair pros in Great Falls

Avatar for RightNOW Plumbing
RightNOW Plumbing
11047 Pierson Drive Suite G
4.74(
941
)
Approved Pro
RightNOW Plumbing
11047 Pierson Drive Suite G
4.74(
941
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
379 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.

"RightNow Plumbing reliably provides competent, scrupulous, trustworthy service. Recently I engaged Andy to service our well-water acid neutralizer tank, because I questioned the reliability of service by another company 13 months earlier. Andy tested our water and found that its pH value was 6.97, which was consistent with previous readings over the past six months when he did other work for us. Because our well-water pH is essentially neutral, Andy explained the acid neutralizer tank is not necessary. He offered two options: 1) remove the tank (thus leaving us with only the water softener tank) or 2) empty it, which option I selected. He also reduced the cost of the service call. Andy’s approach starkly contrasts with the other company that for years took advantage of an unsuspecting customer by charging almost $300 to “service” the tank and unnecessarily adding expensive calcite. For competent, scrupulous, trustworthy service, call RightNow Plumbing. Posted May 14, 2025"

Paul C on May 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.

"RightNow Plumbing reliably provides competent, scrupulous, trustworthy service. Recently I engaged Andy to service our well-water acid neutralizer tank, because I questioned the reliability of service by another company 13 months earlier. Andy tested our water and found that its pH value was 6.97, which was consistent with previous readings over the past six months when he did other work for us. Because our well-water pH is essentially neutral, Andy explained the acid neutralizer tank is not necessary. He offered two options: 1) remove the tank (thus leaving us with only the water softener tank) or 2) empty it, which option I selected. He also reduced the cost of the service call. Andy’s approach starkly contrasts with the other company that for years took advantage of an unsuspecting customer by charging almost $300 to “service” the tank and unnecessarily adding expensive calcite. For competent, scrupulous, trustworthy service, call RightNow Plumbing. Posted May 14, 2025"

Paul C on May 2025


Avatar for Family Fire Service and Plumbing LLC
Family Fire Service and Plumbing LLC
5006 Aspen Hill Rd
4.43(
7
)
Approved Pro
Family Fire Service and Plumbing LLC
5006 Aspen Hill Rd
4.43(
7
)
Approved Pro
Customers say: Quick response
23 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.

"My water heater started leaking on a Sunday. I reached out to Family Fire Service and they responded immediately. They had a new water heater out to my house the next day and installed in a few hours. The supervisor and the tech worked seamlessly to have us up and running. They provided quality service and at a very competitive price. I highly recommend Family Fire Service and Plumbing. KC"

undefined on June 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.

"My water heater started leaking on a Sunday. I reached out to Family Fire Service and they responded immediately. They had a new water heater out to my house the next day and installed in a few hours. The supervisor and the tech worked seamlessly to have us up and running. They provided quality service and at a very competitive price. I highly recommend Family Fire Service and Plumbing. KC"

undefined on June 2025


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 Michael Bonsby HVAC, Plumbing & Electrical VA
Michael Bonsby HVAC, Plumbing & Electrical VA
14910 Persistence Drive
New on HomeAdvisorNew on Angi
Approved Pro
Michael Bonsby HVAC, Plumbing & Electrical VA
14910 Persistence Drive
New on AngiNew on HomeAdvisor
Approved Pro
26 local quotes requested
14 years of experience

Michael Bonsby HVAC, Plumbing & Electrical – Trusted HVAC Contractor in Northern Virginia Michael Bonsby is your go-to HVAC and plumbing company serving Northern Virginia with dependable service, competitive pricing, and expert solutions. Specializing in air conditioning installation, heating repair, HVAC maintenance, and residential plumbing services, we help homeowners and businesses stay comfortable year-round. Whether you’re looking for fast AC repair in Fairfax, furnace replacement in Arlington, or a reliable HVAC maintenance plan in Loudoun County, our certified technicians deliver high-quality workmanship backed by decades of experience. We proudly serve communities throughout Northern Virginia with personalized solutions for all your indoor comfort needs.

Michael Bonsby HVAC, Plumbing & Electrical – Trusted HVAC Contractor in Northern Virginia Michael Bonsby is your go-to HVAC and plumbing company serving Northern Virginia with dependable service, competitive pricing, and expert solutions. Specializing in air conditioning installation, heating repair, HVAC maintenance, and residential plumbing services, we help homeowners and businesses stay comfortable year-round. Whether you’re looking for fast AC repair in Fairfax, furnace replacement in Arlington, or a reliable HVAC maintenance plan in Loudoun County, our certified technicians deliver high-quality workmanship backed by decades of experience. We proudly serve communities throughout Northern Virginia with personalized solutions for all your indoor comfort needs.


United Capital Construction
44330 Mercure Circle
5.00(
8
)
Approved Pro
United Capital Construction
44330 Mercure Circle
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
514 local quotes requested

United Capital Construction offers one of the best qualities and experienced services. We have been in the business since 2004-- from small to big projects, with great references. We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! 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 all the services we offer below and call -or- click to schedule a free estimate today!

"They did a very high quality job going above and beyond expectations."

Jason T on November 2023

United Capital Construction offers one of the best qualities and experienced services. We have been in the business since 2004-- from small to big projects, with great references. We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! 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 all the services we offer below and call -or- click to schedule a free estimate today!

"They did a very high quality job going above and beyond expectations."

Jason T on November 2023


Avatar for Long Home Products
Long Home Products
650 Corporate Dr.
3.67(
3
)
Approved Pro
Long Home Products
650 Corporate Dr.
3.67(
3
)
Approved Pro
Customers say: Quick response
2760 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!

"I had my roof replaced by Long Home and it was a great experience. From start to finish, the customer service, communication, quality of materials, and speed of install was exceptional."

Dana P on January 2025

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!

"I had my roof replaced by Long Home and it was a great experience. From start to finish, the customer service, communication, quality of materials, and speed of install was exceptional."

Dana P on January 2025


KBA Kitchen and Bath
328 W Lee Hwy
5.00(
5
)
KBA Kitchen and Bath
328 W Lee Hwy
5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

KBA Kitchen and Bath: Transforming Homes with Excellence for Over 25 Years. Proudly Serving Fairfax County and Fauquier County.

"We would like to say thank you to KBA Kitchen & Bath Design & Build for a great job remodeling our two upstairs bathrooms. The two bathrooms were completely renovated in 5 weeks, but it could have been finished even sooner if we hadn’t selected a premium option for our shower glass enclosure. The entire project was started and finished between January 21, 2025 until February 28, 2025, which included the crew working two Saturdays, which shows their dedication in getting the job done. We were very impressed with KBA over the entire project! Specifically, we were impressed at how smooth and efficient the entire process was. It was seamless – from the initial consultation to the execution of the job. The designer, Anna, was very thorough and helpful in sketching the designs of new bathrooms and offering advice on recommended materials for the bathroom, to include going above and beyond in helping us choose just the right paint colors to perfectly blend with our newly installed bathroom accessories. Anna and Ervin both made after hour visits to provide their insight on color schemes and where bathroom accessories should be installed and look best. The lead project manager, Ervin, was always there to answer our questions, and he went out of his way to always ensure we were happy customers! Ervin also visited on many occasions to give us updates on project progress and keeping his crew updated on any changes. The installation team always showed up on time, left the work area clean, and went above and beyond to make our design a reality. Anna, Ervin and the crew were always very friendly, professional, and helpful throughout this project. We couldn’t be happier with the outcome as we absolutely love our bathrooms! We highly recommend choosing KBA for your next home project!"

Andrew R on March 2025

KBA Kitchen and Bath: Transforming Homes with Excellence for Over 25 Years. Proudly Serving Fairfax County and Fauquier County.

"We would like to say thank you to KBA Kitchen & Bath Design & Build for a great job remodeling our two upstairs bathrooms. The two bathrooms were completely renovated in 5 weeks, but it could have been finished even sooner if we hadn’t selected a premium option for our shower glass enclosure. The entire project was started and finished between January 21, 2025 until February 28, 2025, which included the crew working two Saturdays, which shows their dedication in getting the job done. We were very impressed with KBA over the entire project! Specifically, we were impressed at how smooth and efficient the entire process was. It was seamless – from the initial consultation to the execution of the job. The designer, Anna, was very thorough and helpful in sketching the designs of new bathrooms and offering advice on recommended materials for the bathroom, to include going above and beyond in helping us choose just the right paint colors to perfectly blend with our newly installed bathroom accessories. Anna and Ervin both made after hour visits to provide their insight on color schemes and where bathroom accessories should be installed and look best. The lead project manager, Ervin, was always there to answer our questions, and he went out of his way to always ensure we were happy customers! Ervin also visited on many occasions to give us updates on project progress and keeping his crew updated on any changes. The installation team always showed up on time, left the work area clean, and went above and beyond to make our design a reality. Anna, Ervin and the crew were always very friendly, professional, and helpful throughout this project. We couldn’t be happier with the outcome as we absolutely love our bathrooms! We highly recommend choosing KBA for your next home project!"

Andrew R on March 2025


Avatar for Ultimate Remodel LLC
Ultimate Remodel LLC
5703 General Washington Dr
4.85(
197
)
Approved Pro
Ultimate Remodel LLC
5703 General Washington Dr
4.85(
197
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
574 local quotes requested

Owner operated full service design, build & remodeling company. We specialize in custom homes, kitchens, bathrooms and whole house renovations. What makes us successful and one of the most profitable boutique companies is, excellent communication skills and having the owner on job site!!!

"It can be so stressful to find trustworthy companies that do high-quality work. Here’s why we have trusted Ultimate Remodel with our kitchen, bathrooms, basement, and office renovations for the past eight years. - Everyone, from Tunch to the crew, takes pride in their work. They pay attention to detail and go above and beyond. For example, in our most recent project, we had old baseboards that were a mess from the previous owner, but that were outside the project area. The crew sanded and repainted the baseboards, making our house blend in with the freshly renovated area. - Tunch provides his expertise in design, while matching our needs and visions for the space. He provides insight about changes that could impact our house’s value and makes recommendations for efficient use of space based on his extensive experience, but ultimately lets us choose the final product. For example, he made several suggestions to our laundry room plans that greatly improved the utility of the space. - Every project comes with unexpected challenges. What keeps us coming back to the crew and Tunch is the small number of issues that arise, and the ease of fixing the issues that do come up. Home renovation is stressful, and it’s so important to feel like your contractor is working with you towards a great final project, compared with nickel-and-diming you based on reasonable requests. I’ll also add that Tunch has kept members of his crew around for years, and I appreciate the expertise, consistency, and experience that comes with that. I highly recommend Ultimate Remodel."

Jenna K on April 2025

Owner operated full service design, build & remodeling company. We specialize in custom homes, kitchens, bathrooms and whole house renovations. What makes us successful and one of the most profitable boutique companies is, excellent communication skills and having the owner on job site!!!

"It can be so stressful to find trustworthy companies that do high-quality work. Here’s why we have trusted Ultimate Remodel with our kitchen, bathrooms, basement, and office renovations for the past eight years. - Everyone, from Tunch to the crew, takes pride in their work. They pay attention to detail and go above and beyond. For example, in our most recent project, we had old baseboards that were a mess from the previous owner, but that were outside the project area. The crew sanded and repainted the baseboards, making our house blend in with the freshly renovated area. - Tunch provides his expertise in design, while matching our needs and visions for the space. He provides insight about changes that could impact our house’s value and makes recommendations for efficient use of space based on his extensive experience, but ultimately lets us choose the final product. For example, he made several suggestions to our laundry room plans that greatly improved the utility of the space. - Every project comes with unexpected challenges. What keeps us coming back to the crew and Tunch is the small number of issues that arise, and the ease of fixing the issues that do come up. Home renovation is stressful, and it’s so important to feel like your contractor is working with you towards a great final project, compared with nickel-and-diming you based on reasonable requests. I’ll also add that Tunch has kept members of his crew around for years, and I appreciate the expertise, consistency, and experience that comes with that. I highly recommend Ultimate Remodel."

Jenna K on April 2025


Avatar for Advanced Environment Solutions, Inc
Advanced Environment Solutions, Inc
5 Le Way Dr
4.84(
25
)
Approved Pro
Advanced Environment Solutions, Inc
5 Le Way Dr
4.84(
25
)
Approved Pro
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
1825 local quotes requested

Welcome to Advanced Environment Solutions, your go-to contractor for all your heating, cooling, duct cleaning, plumbing, electrical, and generator needs. We have been proudly serving Fredericksburg, VA, and the surrounding areas for over a decade, and we are dedicated to providing exceptional service and expertise to our customers. We offer residential and commercial services with a focus on comfort and health. Our family-owned business provides convenient, timely, and affordable service. We prioritize professionalism, combining personalized attention, industry-leading products, and meticulous job performance. Our solutions deliver energy-efficient, reliable, and long-lasting comfort to customers in Northern Virginia.

"Needed to replace a 25+ year old HVAC system in the coldest months of the year, so I contacted Advanced Environment Solutions for a bid. I worked with Tammy at AES to schedule the inspection, follow-up, etc. - a fantastic employee. Courteous, professional, and really knows her stuff when it comes to HVAC. Unfortunately, I live in a condo with a tricky indoor/outdoor HVAC set-up that ended up requiring a fairly specific indoor unit that AES did not offer, so I had to go with another company. Still I felt compelled to leave a review for AES and Tammy to highlight their professionalism and service-oriented approach. WiIll absolutely consider AES for future projects."

James B on May 2025

Welcome to Advanced Environment Solutions, your go-to contractor for all your heating, cooling, duct cleaning, plumbing, electrical, and generator needs. We have been proudly serving Fredericksburg, VA, and the surrounding areas for over a decade, and we are dedicated to providing exceptional service and expertise to our customers. We offer residential and commercial services with a focus on comfort and health. Our family-owned business provides convenient, timely, and affordable service. We prioritize professionalism, combining personalized attention, industry-leading products, and meticulous job performance. Our solutions deliver energy-efficient, reliable, and long-lasting comfort to customers in Northern Virginia.

"Needed to replace a 25+ year old HVAC system in the coldest months of the year, so I contacted Advanced Environment Solutions for a bid. I worked with Tammy at AES to schedule the inspection, follow-up, etc. - a fantastic employee. Courteous, professional, and really knows her stuff when it comes to HVAC. Unfortunately, I live in a condo with a tricky indoor/outdoor HVAC set-up that ended up requiring a fairly specific indoor unit that AES did not offer, so I had to go with another company. Still I felt compelled to leave a review for AES and Tammy to highlight their professionalism and service-oriented approach. WiIll absolutely consider AES for future projects."

James B on May 2025


Avatar for My Kitchen & Bath
My Kitchen & Bath
285 Sunset Park Dr
4.63(
41
)
Approved Pro
My Kitchen & Bath
285 Sunset Park Dr
4.63(
41
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
701 local quotes requested

Vienna Showroom: 112 Church St. NW. Vienna, VA 22180 - Phone: 703-537-0857 Herndon Showroom: 285 Sunset Park Dr. Herndon, VA 20170 - Phone: 703-429-4323 https://mykitchenandbath.com/ Since 1994, My Kitchen and Bath has created some of the most exciting kitchens and bathrooms in the Washington, D.C. region. We are located in Herndon and Vienna. We offer the finest custom cabinetry designed to your exact specifications. We are dedicated to meeting and exceeding your every expectation. Custom kitchen and bath projects require great attention to detail. Your kitchen or bath project is planned to the utmost precision and realized by some of the finest and most experienced installation professionals in the business. Our talented designers see your project through from start to finish supervising the contractor throughout the installation phase. For more information, request a brochure or make an appointment email us or call 703-429-4323

"My Kitchen and bath had exceeded my expectations with regards to quality, price , and timeliness of my kitchen project . The PM estimated 2 and half weeks to 3 weeks but it was done in 2 weeks, just before Christmas ! The staff was very friendly and attentive . They listened and understood what I wanted for my dream kitchen . Duncan, presented me with options for my kitchen to meet my budget . Although ,I chose the latter which was to have my dream kitchen and decide not to bend on that. Sam was thorough with all the final walk through and made sure I was happy before leaving my house. Attention to detail was what I appreciated most with the whole process . I felt safe in the sense where my kitchen would not be left unfinished midway . I recommend this company to anyone who is renovating !"

Brenda N on January 2025

Vienna Showroom: 112 Church St. NW. Vienna, VA 22180 - Phone: 703-537-0857 Herndon Showroom: 285 Sunset Park Dr. Herndon, VA 20170 - Phone: 703-429-4323 https://mykitchenandbath.com/ Since 1994, My Kitchen and Bath has created some of the most exciting kitchens and bathrooms in the Washington, D.C. region. We are located in Herndon and Vienna. We offer the finest custom cabinetry designed to your exact specifications. We are dedicated to meeting and exceeding your every expectation. Custom kitchen and bath projects require great attention to detail. Your kitchen or bath project is planned to the utmost precision and realized by some of the finest and most experienced installation professionals in the business. Our talented designers see your project through from start to finish supervising the contractor throughout the installation phase. For more information, request a brochure or make an appointment email us or call 703-429-4323

"My Kitchen and bath had exceeded my expectations with regards to quality, price , and timeliness of my kitchen project . The PM estimated 2 and half weeks to 3 weeks but it was done in 2 weeks, just before Christmas ! The staff was very friendly and attentive . They listened and understood what I wanted for my dream kitchen . Duncan, presented me with options for my kitchen to meet my budget . Although ,I chose the latter which was to have my dream kitchen and decide not to bend on that. Sam was thorough with all the final walk through and made sure I was happy before leaving my house. Attention to detail was what I appreciated most with the whole process . I felt safe in the sense where my kitchen would not be left unfinished midway . I recommend this company to anyone who is renovating !"

Brenda N on January 2025

...
Showing 1-10 of 855

FAQs for tankless water heater installation projects in Great Falls, VA

Professional flushing services for tankless water heaters run about $200 per visit. This essential maintenance procedure eliminates mineral deposits from critical components, particularly the heat exchanger. While homeowners can purchase DIY flushing kits for $50 to $100, professional service offers the advantage of thorough cleaning with proper techniques. Professional maintenance also includes inspection of additional components that might need attention.

Industry experts and manufacturers recommend annual maintenance for tankless water heaters, with more frequent service (every six months) for homes with challenging water conditions. This regular attention prevents efficiency losses and extends the unit's operational lifespan. Watch for warning signs like reduced water temperature, inconsistent performance, or system error codes that might indicate maintenance is needed sooner than scheduled.

Neglecting regular maintenance allows mineral scale to accumulate within your system, restricting water flow and reducing heating efficiency. This forces your unit to work harder, consuming more energy while delivering less satisfactory performance. Over time, this strain can lead to component failures, inconsistent water temperatures, and premature system replacement. Additionally, most manufacturers require documentation of regular maintenance to honor warranty coverage for major components.

Share project details to get started.