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TRUSTED BY WASHINGTON, DC HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon416
    Verified water heater services reviews

Top-Rated Water heater pros in Washington - Updated Nov 2026

Avatar for Jimmy Gusky Heating & Air LLC
Jimmy Gusky Heating & Air LLC
4.3(
374
)
Water Heater - Repair or ServiceTankless Water Heater - InstallWater Heater - Repair or Service - For Business+6 more

Serving Washington, DC 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."
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Response time9 hrs
4 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for DAY & NIGHT PLUMBER LLC
DAY & NIGHT PLUMBER LLC
4.8(
94
)
Water Heater - Install or ReplaceSolar Water Heater System - InstallTankless Water Heater - Install+6 more

Serving Washington, DC and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"We needed a water heater replacement due to a leak in our existing unit. The company came out promptly after our phone call, provided an estimate, and came back first thing the next morning with a new water heater to install. The owner and staff were patient in answering any questions that we had and did an amazing job cleaning up after they were finished with installation. They went above and beyond to ensure that we were very satisfied with their service. They never made us feel as if they were rushing to complete the job. We would highly recommend them!"
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+1

Response time11 hrs
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for R Plumber, LLC
R Plumber, LLC
4.4(
259
)
Water Heater - Install or ReplaceTankless Water Heater - Install

Serving Washington, DC and surrounding areas

Approved

In business since 1998

Emergency services offered

Warranties offered

"We had a pipe break in our first floor bathroom at 1:00 am on Sat and a lot of water poured out and the first floor was completely flooded. After contacting 3 other plumbers with no success because they were busy with other customers, I went to home advisers and requested emergency service from several plumbers in the area and Rene from R plumber called within 10 min and was at our house within the next hour (very prompt). We had no idea where the water was coming from and Rene was very upfront about what needed to be done as far as cutting holes in the wall to find the source. He cut one hole in the bathroom ceiling and found a pipe completely severed which he was able to fix an restore water. His customer service was superb. THANK YOU VERY MUCH RENE!"
Here we are!!!
Plumbing Ground Work
Lavatory Rough-in
One shower with 2 valve
Broken Sewer pipe

+59

Response time6 hrs
33 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Hardin Services, Inc.
Hardin Services, Inc.
5.0(
5
)
Water Heater - Repair or Service - For BusinessWater Heater - Install or Replace - For Business

Serving Washington, DC and surrounding areas

Approved

In business since 2024

Offers commercial services

Customers say: Quick response

"James is very punctual and thorough and does a very meticulous job. I highly highly recommend him. He explains everything he is doing and does not cut any corners and only does the best perfect work He gave me the best price out of five different plumbers for my water heater. Install at Price included the cost of the water heater, picking up the water heater and throwing away the old water heater. When I asked for his license and insurance information, he readily had it all on hand and provided it almost instantly I will have James back out very soon to complete more work for me"
Response time6 hrs
Response rate94%
5 neighbors recently requested a quote
Avatar for Kozan Construction, LLC
Kozan Construction, LLC
4.6(
36
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Install - For Business+3 more

Serving Washington, DC and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"Frank and his team at Kozan did an absolutely incredible job on my house replumb! We had to replace our 1980s polybutylene pipes as they were finally starting to leak, and knew it would be an invasive job. I had 5 companies come out and quote me - Kozan came in the most reasonable, but that wasn't the only reason I went with them. When Frank was here doing his estimate, he was the only guy who really looked at the pipes, and started putting together a plan; having worked construction myself, this is exactly what I would've done. All the others were in and out with a handshake and a couple pics. Regarding the work, they replumbed the house with minor intrusion, and even took care to cut the drywall stud-to-stud to make my patchwork a bit easier. They did everything they could to keep the water running to all the lines not being worked on, and cleaned everything up every day before they left. All-in-all the job was very well done, and Frank was a true professional. Thanks Frank!"
Master bathroom walls and floor
Travertine tiles on Master bathrom
Cabinets and Counter Top
Kitchen Cabinets and Counter Top
Master Bathroom With Shower

+16

Response time6 hrs
Response rate89%
2 neighbors recently requested a quote
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Water Heaters FAQs, answered by experts

There are pros and cons to tankless water heaters. They are more efficient than traditional tank water heaters, and maintenance costs are lower. These units are also much more compact. On the other hand, they cost about twice as much to install as traditional tank water heaters and are more limited in terms of flow rate.

A tankless water heater with a flow rate of 10 GPM should replace a conventional 50-gallon water heater. To avoid a surprise cold shower or two and to keep your energy costs in check, it's important to replace a conventional tanked water heater with the equivalent tankless water heater. Your household size and the number of hot-water-using devices you use at once can help you determine the best-size tankless water heater.

Storage, tankless, heat pumps, and solar water heaters each suit specific space constraints, usage needs, and efficiency preferences.

Yes, you can convert a gas water heater to an electric one, but it is a complex process. You will need to ensure there is adequate power for the new electric unit, as they require more power than gas models. The project also involves safely closing off the gas lines and ventilation, and some cities may require a permit for the conversion. The cost can range from $1,500 to $4,100, depending on the installation scope, plumbing and electrical work, and the water heater model. For an accurate quote, it's best to contact a local professional. Also, be aware that your monthly utility bills may increase after the conversion, as natural gas is typically cheaper than electricity.

The chemicals in a water softener can wear down the anode rod in the heater and shorten its life span. However, for most people, the benefits of the softener outweigh this potential drawback.

Have a plumber inspect the anode rod annually for damage, as replacing the anode rod is far less expensive than replacing the entire water heater.

The Washington, DC homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.