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

Avatar for Jimmy Gusky Heating & Air LLC
Jimmy Gusky Heating & Air LLC
4.3(
374
)
Tankless Water Heater - Repair

Serving Wheaton, MD 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 Fred and Son Plumbing
Fred and Son Plumbing
4.8(
68
)
Tankless Water Heater - Repair

Serving Wheaton, MD and surrounding areas

Approved

In business since 1990

Free estimates

Customers say: True professional

"The cracked pipe ended up being between the first and second floor where drain pipes from the upstairs bathrooms came together in a Y-joint. The house is 45 years old and these old plastic pipes eventually crack from flexing, etc. which is exactly what had happened. Fred had to cut 10 inch wide strips in the drywall in the kitchen and bathrooms walls and ceilings to get at the area to replace the leak. He added some rubber sleeves to the new Y-joints to allow for some flexing of the house so this would not happen in the future. When all was done, the repair was $2300 and I had to hire a drywall contractor for another $500 to fix the drywall, but Fred was upfront about the price, the extent of the damage that would have to be done for the repair, and the need to fix the drywall after he left. While it really stinks to have to cough up almost $3K to for a leaking pipe, that's the cost of owning a home build in the 1970's with cheap materials and I was very impressed with the work done by Fred and his same day responsiveness. At least the leak was noticed right away so we did not have any water or mold damage to deal with."
Recommended by100%of homeowners
Avatar for Beacon Home Services, Inc.
Beacon Home Services, Inc.
4.6(
2,092
)
Tankless Water Heater - Repair

Serving Wheaton, MD 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%
576 neighbors recently requested a quote
Avatar for McCarthy Services MD
McCarthy Services MD
4.2(
384
)
Tankless Water Heater - Repair

Serving Wheaton, MD 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
Joseph plumbing & drain
4.9(
162
)
Tankless Water Heater - Repair

Serving Wheaton, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Kap did a great job all around. I originally had him come out to assess why the water heater wasn't working (no hot water). He determined that the unit (15 years old) needed to be replaced. He also pointed out that the system is not up to code and some extra work would be required. I asked if he would be able to do the new install and asked if he could do it sooner than later, as cold showers for days (even one more) would not be fun. He ended up coming back out same day - about 6pm - with all parts and the new unit. He stayed until 11pm! to get the job done. Kap is fantastic. He's knowledgeable, professional, and very nice person. Highly recommend."
Response time6 hrs
Response rate100%
4 neighbors recently requested a quote
Markool Heating & Cooling, LLC
4.7(
18
)
Tankless Water Heater - Repair

Serving Wheaton, MD and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Markool was super professional, kind, and skillful. A few things really stood out. 1) He did a furnace flue piper install that he could have charged us much more for if he had wanted to take advantage of us - but he was honest and we paid less than we feared. He also went the extra mile helping my wife and I through a warranty claim with the furnace company so that we did not have to pay extra part costs. It was an unexpected need, but he was prepared with the part and worked with the manufacturer to get us covered. He was even able to better a previous repair. 2) On a home humidifier install, he made himself available on short notice, took time to answer our questions, and then showed us how to maintain the equipment ourselves so we wouldn't need to shelve out more for additional contracting work - even from him. Grateful!"
Response time1 day
15 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for DAY & NIGHT PLUMBER LLC
DAY & NIGHT PLUMBER LLC
4.8(
94
)
Tankless Water Heater - Repair

Serving Wheaton, MD and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Marin the tech was great he was friendly and took his time to explain what happen with my water heater and how I could prevent the problem from happening again. I would differently ask for him again to service my water heater. Thank you Marin!!!"
Additional Photos
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Additional Photos
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+1

Response time11 hrs
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Prime Plumbing, LLC
Prime Plumbing, LLC
4.4(
44
)
Tankless Water Heater - Repair

Serving Wheaton, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Small jobs welcome

Credit card accepted

"Prime Plumbing provided excellent customers service from the beginning to the end. Rob was very thorough when he came out to provide estimate, financing options and gave good explanation of what was needed to replace my direct vent hot water tank for my condo. Rob was also the one who installed the hot water tank and did an excellent job. Direct vent hot water tanks are much more expensive than your standard hot water tank, so it was pricey. I initially found Prime Plumbing on Angie's list and I would recommend them for your plumbing needs. I'm a single female in my early 60's. I did end up using my own financing because their finance company interest rates were way too high for someone with excellent credit. Do rate comparison first."
Septic Pumping
Hydrant Removal
Failed Hydrant
Response time3 hrs
229 neighbors recently requested a quote
Recommended by20%of homeowners
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