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Top-Rated Tankless water heater installers in Reston - Updated Nov 2026

Avatar for Fred's Plumbing & Heating
Fred's Plumbing & Heating
5.0(
22
)
Tankless Water Heater - Install

Serving Reston, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"From start to finish, Freddy was professional, efficient, and incredibly knowledgeable. The installation was smooth, and the new water heater works perfectly. Freddy even took the time to explain everything and ensured that we were completely satisfied. Highly recommend his services to anyone in need!"
Inspection report
Electrical Project
Additional Photos
Additional Photos
Additional Photos

+16

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for SwiftPro Heating, Cooling & Plumbing
SwiftPro Heating, Cooling & Plumbing
4.6(
117
)
Tankless Water Heater - Install

Serving Reston, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"I worked with Tyler from SwiftPro and had a great experience with installing a new heating and cooling system in my apartment. Moises and Oscar did the install and did a great job protecting my apartment and doing a professional installation. I highly recommend them for your hvac and plumbing needs!"
Tri-County Feeds
Trane Odyssey unit
Attic air handler
Old Armstrong AC
R-22 data plate

+29

Response time4 hrs
Response rate100%
Recommended by43%of homeowners
Avatar for Appleton Campbell
Appleton Campbell
4.6(
339
)
Tankless Water Heater - Install

Serving Reston, 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
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+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 - Install

Serving Reston, VA and surrounding areas

Approved

In business since 1996

Emergency services offered

Credit card accepted

"Excellent. Two separate teams came; one for AC and Furnace; second for Tankless hot water heater; Minor toilet repair also done at no extra charge, including a follow up service call to install new toilet flush handle, also at no charge."
Additional Photos
Additional Photos
Additional Photos
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 - Install

Serving Reston, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"I can't say enough about DB's Plumbing. I called in the morning, had a return call within hours and they were at my house that night. 24 hours later, the new hot water heater was installed! Price beat all others. Duncan was professional and knew exactly what he was doing. DB Plumbing is now my GO TO PLUMBER!"
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 Snell Heating & Air Conditioning, LLC
Snell Heating & Air Conditioning, LLC
4.6(
255
)
Tankless Water Heater - Install

Serving Reston, VA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Had a surprise when workmen showed up unannounced the day after I signed the contract. Once we rescheduled the installation date and time, things went very smoothly. The installation of the furnace, AC, and hot water heater took less than a day. I'm very happy with the results."
Snell Plumber Kitchen
Snell Tech Water Heater
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Mahon Plumbing
Mahon Plumbing
4.6(
199
)
Tankless Water Heater - Install

Serving Reston, VA and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"Mahon Plumbing was not only professional, fair, and timely. Their professional courtesy and customer service was amazing. Couldn’t have made the process of installation any easier! Use Mahon Plumbing…no questions asked!"
Tankless water heater installation
Tankless Water Heater Installation
Commercial drain cleaning
Sewer Line Video Inspection
Water heater replacement

+30

Response time7 hrs
Response rate100%
Recommended by92%of homeowners
Avatar for Home Service Pros
Home Service Pros
4.9(
14
)
Tankless Water Heater - Install

Serving Reston, VA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Albert and Joseph provided truly exceptional service during their visit to my home. Albert first installed my kitchen faucet and food processor, and then, both came back to install a water heater with remarkable professionalism, care, and efficiency. From the moment they arrived, they were responsive, respectful, and incredibly warm. They took the time to explain my options, helped me feel at ease, and ensured I understood why the water heater they recommended was the best choice on the market. On top of that, they went above and beyond by fixing a separate issue in my shower without hesitation. Their dedication, expertise, and kindness made the entire experience outstanding. I am deeply grateful for their work and highly recommend them."
Completed sewer lateral repair.
Completed sewer lateral replacement that required a VDOT street cut.
Excavating sewer lateral for repair. Trust the process.
Completed sewer lateral installation.
Installation of new gas water heater.

+6

Recommended by16%of homeowners
Avatar for First Choice Plumbing & Remodeling
First Choice Plumbing & Remodeling
4.8(
128
)
Tankless Water Heater - Install

Serving Reston, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"If I could give 10 stars I would! Our 2 year old hot water heater went out in the middle of the night due to an electrical issue. Tommy came the next morning, identified the problem and explained everything to me. He returned later that afternoon with a brand new hot water heater and installed it. We had hot water less than 24 hours after our heater went out! Installation was professional and I can tell he takes pride in doing things the right way. He was also up front, fair and honest about pricing. Thank you so much!"
Response time5 hrs
Response rate92%
10 neighbors recently requested a quote
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