Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros in Nashotah, WI

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

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

Avatar for Cardinal Heating & Air Conditioning
Cardinal Heating & Air Conditioning
4.8(
165
)
Tankless Water Heater - Repair

Serving Nashotah, WI and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"Paul was very friendly and helpful. He explained how the toilet was leaking and other possible causes for the small pool of water near the water shutoff valve. This was a revisit from work earlier done which had a larger leak."
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air

+15

99 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Harker Heating & Cooling
Harker Heating & Cooling
4.6(
213
)
Tankless Water Heater - Repair

Serving Nashotah, WI and surrounding areas

In business since 1949

Free estimates

Emergency services offered

"$108 to come out and diagnose the problem whIch was just a crack drain pipe receiver:) so they come out to repair it for an additional $249.83. I’m a bit confused by the price and ask how much was the part? They won’t give me that amount, they tell me it’s charged per job. Call to find out how much the part actually cost from Lenix, cost $67. They were at our house less than 20 minutes I was charged $180 for for 20 min. of service:( Won’t use them again:( I was also promised a phone call back to discuss a possible credit and did not receive one...no surprise:("
87 W. Beltline Hwy
Carrier Distinguished Dealer Logo
Star of Madison Award
Recommended by89%of homeowners
Wilde Plumbing
4.2(
17
)
Tankless Water Heater - Repair

Serving Nashotah, WI and surrounding areas

In business since 1966

Free estimates

Credit card accepted

"I was very pleased with their service. I asked them to follow up with me because I was thinking about replacing some fixtures, and I never heard back. I thought the price was very reasonable. I thought he did a wonderful job. I was trying to figure out how to turn the water off in my condo. I found a lever and it didn't turn. It had been broken. He was able to manipulate it so that it didn't need to be replaced. He showed me what to do so I wouldn't have to call him back. I would give him an A for all of the service questions, but for the follow up questions I would give him an F."
Recommended by92%of homeowners
Avatar for BLAU PLUMBING, INC.
BLAU PLUMBING, INC.
4.3(
58
)
Tankless Water Heater - Repair

Serving Nashotah, WI and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"Theo Matt answered all of my questions and was very knowledgeable about all of my plumbing needs both the immediate ones and the ones that might occur in the future. The service person left me with a bit of a mess to clean up, but I believe he did a good job."
Plumbing Work
Plumbing Work
Plumbing Work
Plumbing Work
Plumbing Work

+12

Response time4 hrs
Recommended by85%of homeowners
Showing 1-10 of 18