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Top-Rated Tankless water heater repair pros in Ashburn - Updated Nov 2026

Avatar for Appleton Campbell
Appleton Campbell
4.6(
339
)
Tankless Water Heater - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"The company technicians, Steven, James and Zack were very professional and competent. They did excellent job in both removing the old unit and installing the new one. In addition to this job, we have used Appleton Campbell for several projects over the past couple of years, to include, installing a back up propane generator, installing replacement electrical lighting, and replacing a hot water heater. The company and their personal, to include both field and office individuals, were very competent and courteous. We highly recommend this company to other individuals."
Additional Photos
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+1

Response time11 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Jimmy Gusky Heating & Air LLC
Jimmy Gusky Heating & Air LLC
4.3(
374
)
Tankless Water Heater - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 1996

Emergency services offered

Credit card accepted

"Jimmy Gusky HVAC is truly as good as it gets. One of our AC units went down and through the warranty company found our way to Jimmy Gusky himself. Although out of their territory, Jimmy was willing to make the extra trip to diagnose the problem. He was very responsive to get our initial service call scheduled and determined the unit needed to be replaced, and we all know these units usually decide to break down only when pushed to the limit in the hottest summer months and we need AC the most. He did the legwork to get the warranty company to honor the recommendation and as you can see from the attached photo put in a much more substantial unit that is doing a fabulous job cooling the home. Add to that he actually had the unit and scheduled the install even before the warranty company approved the swap out. I that isn't one of the greatest examples of outstanding customer service and going above and beyond to exceed expectations, I don't know what is. Big thanks to Jimmy and team for their commitment to excellence!"
Additional Photos
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Response time9 hrs
4 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for DB's Plumbing & Drain
DB's Plumbing & Drain
4.8(
194
)
Tankless Water Heater - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Tommy was professional and knowledgeable. He arrived at both appointments on time and got the valve and water heater replaced quickly. I would highly recommend them. I comparison shopped two other plumbing companies during the day and DB's was the best in knowledge and price."
Sewer replacement Inside and out
Team at our new locations ribbon cutting
Expansion tank with new venting
New pipe continued
Whole house re pipe

+212

Response time12 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Beacon Home Services, Inc.
Beacon Home Services, Inc.
4.6(
2,092
)
Tankless Water Heater - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Services were prompt, clean and efficient. Tech was knowledgeable and personable. Water heater was affordable. Estimate (free) was done on site - not guessing over the phone."
Beacon Home Services - Electric, Plumbing, Drains
New water heater replacement
Our Team
Electrician - Installing 2 new electrical panels
Beacon Home Services - Electrician

+31

Response time30 mins
Response rate100%
575 neighbors recently requested a quote
Avatar for SwiftPro Heating, Cooling & Plumbing
SwiftPro Heating, Cooling & Plumbing
4.6(
166
)
Tankless Water Heater - Repair

Serving Ashburn, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"SwiftPro HVAC did such a great job that I have hired them for my plumbing needs as well (flush hot water heater and replace my sump pump. I highly recommend them. Their labor cost was $1000 less than ARS/McCarthy to do the same job!!!!"
Air Conditioner Trane Unit Install
Duct Cleaning
Tri County Feeds Customized ducts and HVAC complete systems
Trane HVAC Heating & A/C Install
Trane Install Heating & AC Project. Dual-Fuel & Solar-Compatible Systems

+62

95 neighbors recently requested a quote
Recommended by43%of homeowners
Avatar for Snell Heating & Air Conditioning, LLC
Snell Heating & Air Conditioning, LLC
4.6(
255
)
Tankless Water Heater - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Really appreciated the next-day appointment (on a Saturday) and the high quality Service Representative who showed up on time and completed the necessary repair quickly and efficiently. Really excellent service. Would highly recommend Snell Heating & Air Conditioning for any repairs or service. We will definitely call them again if we need any work on our HVAC systems."
Snell Plumber Kitchen
Snell Tech Water Heater
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for McCarthy Services MD
McCarthy Services MD
4.2(
384
)
Tankless Water Heater - Repair

Serving Ashburn, VA and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Emergency services offered

"Mr. Brian Langford made all the arrangements with the installation of our gas hot water heater from Lowe's via McCarthy plumbing. He was extremely helpful,patient, professional and available to answer all questions. Due to his approach to his work, we will be working with both companies in the future. Only concern I have is the warranty between Lowe's and AO Smith Hot water heaters. Once the heater is installed, Lowe's severs ties. If there is a problem with the hot water heater, you cannot return it to Lowe's although it was purchased through them, this is clearly stated on the Hot water heater in bold writing."
Installing a new A/C system.
Recommended by87%of homeowners
Avatar for Michael & Son Services, Inc.
Michael & Son Services, Inc.
3.3(
235
)
Tankless Water Heater - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 1976

Emergency services offered

Warranties offered

"Mr. Burnett provided excellent plumbing service. He replaced my toilet in the bathroom and water hoses for my wash machine. I appreciated his care, skills, and professionalism, I highly recommend Mr. Burnett for plumbing work."
Electrical Services
Electrical Services
Present Information to Customers
Arriving at Home
Fully Stocked Trucks

+11

Response time2 hrs
Response rate97%
Recommended by76%of homeowners
Avatar for LeMaster Plumber LLC
LeMaster Plumber LLC
5.0(
5
)
Tankless Water Heater - Repair

Serving Ashburn, VA and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. \n

46 neighbors recently requested a quote
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