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

Avatar for Keep Smiling Plumbing, Electric, Heating & Cooling
Keep Smiling Plumbing, Electric, Heating & Cooling
4.6(
170
)
Tankless Water Heater - Repair

Serving Stone Mountain, GA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1985

Emergency services offered

Warranties offered

"Keep smiling was prompt and performed the work as quoted.They added a new outside wall faucet in a location near our pool so I don't have to run a mile of hose when needing to add water.Also, they had previously diagnosed why our "builder installed" recirculating hot water system did not help distribute hot water through out the house. The pipiing was installed in a poor location for gravity-feed and the builder had failed to add the pump itself.On one end of the house hot water would need to run for several minutes for it to reach the faucets.Keep Smiling corrected the piping design and installed the pump.Now we have hot water through out the house even in the longest runs in seconds!Great experience and will use for all our plumbing needs."
Additional Photos
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+2

306 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Rooter ProXpress LLC
Rooter ProXpress LLC
4.8(
9,765
)
Tankless Water Heater - Repair

Serving Stone Mountain, GA and surrounding areas

Approved

In business since 2019

Emergency services offered

Warranties offered

"I have a Rheem tankless water the hot water is fluctuating in the showers and other faucets. It didn't do this a while back. RPX tech came out and said the flow sensor was messed up. He told me he had to be replace the water heater or i will keep paying for it to be repaired. He had one with him. He installed it and was on his way."
WATER SERVICE LINE
WATER SERVICE LINE
WATER SERVICE LINE
WATER SERVICE LINE
WATER SERVICE LINE

+32

Response time2 hrs
Response rate99%
1344 neighbors recently requested a quote
Avatar for Estes Services - HVAC Plumbing & Electrical
Estes Services - HVAC Plumbing & Electrical
4.5(
668
)
Tankless Water Heater - Repair

Serving Stone Mountain, GA and surrounding areas

Approved

In business since 1949

Free estimates

Emergency services offered

"Actually, I ended up needing a whole new water tank. So, I bought and had ESTES install the tankless water system. I couldn't have for a better team of guys to handle it. They were awesome."
Additional Photos
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+31

Response time5 hrs
Response rate100%
34 neighbors recently requested a quote
Avatar for Greenlee Plumbing Inc
Greenlee Plumbing Inc
4.9(
251
)
Tankless Water Heater - Repair

Serving Stone Mountain, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"I used Greenlee to replace my water heater. They replied to my inquiry for service very quickly, even though it was after normal business hours. They were responsive and professional assisting me in determining the best solution for me. They arrived quickly and on time. Their work was fast and they did a great job of removing my old water heater and installing the new one. Everyone with whom I had contact was friendly and professional. They will be handling any future plumbing work that I have."
Before. Old heater
Main service line repair with new shut off and pressure reducing valve and installing a frost free hydrant
New Heater
Additional Photos
Additional Photos

+25

Response time8 hrs
2 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Fifty Plumbers
Fifty Plumbers
4.9(
13
)
Tankless Water Heater - Repair

Serving Stone Mountain, GA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Here at Fifty Plumbers, with over 30 years experience in the field, we truly are “Your Plumbing Authority”. Owner Joseph, is an expert in the plumbing field and customer relations skills, are second to none! He treats his customers like family! He always puts the customers needs first and is ALWAYS available to our clients.

Garbage disposal install
Sewer line replacement
5 neighbors recently requested a quote
Avatar for StratCo. Services Incorporated
StratCo. Services Incorporated
5.0(
7
)
Tankless Water Heater - Repair

Serving Stone Mountain, GA and surrounding areas

Approved

In business since 2024

Emergency services offered

Warranties offered

"StratCo. Services was amazing. Their team was prompt, professional, and incredibly knowledgeable. They replaced my outdated water heater and left everything spotless. I highly recommend them to anyone in the Atlanta area!""
Water Heater
3 neighbors recently requested a quote
Recommended by14%of homeowners
Avatar for TE Certified Electrical, Plumbing, Heating & Cooling
TE Certified Electrical, Plumbing, Heating & Cooling
4.5(
13
)
Tankless Water Heater - Repair

Serving Stone Mountain, GA and surrounding areas

Approved (Corporate)

In business since 1998

Free estimates

Emergency services offered

TE Certified Electrical, Plumbing, Heating & Cooling understands there is never a great time to need a home repair. That's why we make scheduling easy, arrive in three-hour arrival windows, drive fully stocked trucks, give flat rate pricing, and back our work with a lifetime workmanship guarantee. \n\nServices offered: Residential Electrical, Plumbing, Heating and Cooling - Inspection, Repair, Replacement, Maintenance. \n\nElectrical - Rewiring, Outlets, and Switches, Whole House Back-Up Generators, Indoor/Outdoor Lighting, Car Chargers, Surge Protection, Ethernet & Cable Installation. \n\nPlumbing - Water Lines, Water Heaters, Tankless Water Heaters, Fixtures and Faucets, Garbage Disposals, Sewer Lines, Pressure Regulators. \n\nHVAC - Air Conditioners, Furnaces, Air Handlers, Heat Pumps, Ductless Heaters, Indoor Air Quality

Tankless Water Heater
Tankless Water Heater
Beautiful Light Fixture Installation
Daikin FIT Installation!
Halo 5 Water Filtration System.

+16

1 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Rooter Pro Plumbing GA
Rooter Pro Plumbing GA
4.8(
36
)
Tankless Water Heater - Repair

Serving Stone Mountain, GA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"They found that what appeared to be a leaking water heater was actually a clogged drain line from an adjacent HVAC AprilAire humidifier. He also determined the pressure control valve had failed and the reading was 130 psi. He had the valve on his truck so I had it replaced even though the price was several hundred dollars above two other quotes."
Well Pump Installation After
Well Pump Installation Before
Well Pump Installation During
Sewer Main Repair
Sewer Main Repair During

+5

Response time4 hrs
Response rate92%
132 neighbors recently requested a quote
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