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

Avatar for Platinum Plus Plumbing
Platinum Plus Plumbing
4.7(
424
)
Tankless Water Heater - Repair

Serving Cool, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Emergency services offered

"Matt was incredibly efficient and on top of things. He provided a great solution with the tankless water heater and moved quickly. We were very pleased with the work and the costs. Top-notch service."
Jim
Tankless
Water heaters
Tankless
Tankless

+4

Response time4 hrs
120 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Honest Sewer & Drain, LLC
Honest Sewer & Drain, LLC
5.0(
21
)
Tankless Water Heater - Repair

Serving Cool, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"We needed all the pipes replaced in our house. We also switched to a tankless water heater. Dustin came to give us an estimate and advise when they could start the project. We had gotten a couple of estimates but something just felt different with them. We liked that we received an email with who would be coming to give us an estimate as well as a picture of the technician we should expect. It was so refreshing working with this company it reminded me of company's 50 years ago with values and a caring staff. Dustin, Mike and Anatoily had what I will refer to as the three P's. They were professional, punctual and personable. They laid drop cloths and cleaned up everyday after themselves. They even finished the job a day early than projected as we were scheduled to go out of town for five days. I would highly recommend Honest Sewer & Drain. By the other positive reviews you guys are doing a fantastic job. Keep up the good work and it was a real pleasure doing business with you."
Hidden Tankless Water Heater
Pipe Fusing
Water Heater Replacement
After Epoxy Lining
Tankless Water Heater Installation

+50

Response time5 hrs
Response rate92%
40 neighbors recently requested a quote
Avatar for Peter Levi Plumbing, Heating, Cooling, Drains
Peter Levi Plumbing, Heating, Cooling, Drains
3.0(
13
)
Tankless Water Heater - Repair

Serving Cool, CA and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Warranties offered

"It went very well; the thorough HVAC system checkup revealed some questionable component that were best suggested to be replace with new ones. I am not confident that my HVAC system is set for more that good performance going forward. I appreciated the non-pressured advice and suggestions in coming to my decisions. Thank you, Joaquin Ortiz."
7 neighbors recently requested a quote
Recommended by70%of homeowners
Bonney Plumbing, Sewer, Electrical, Heating & Air
4.5(
1
)
Tankless Water Heater - Repair

Serving Cool, CA and surrounding areas

Approved

In business since 1978

Free estimates

Credit card accepted

Bonney Plumbing, Electrical, Heating and Air, has been your local, reliable service company since 1978. As an A+ rated member of the Better Business Bureau, we have worked hard to build our reputation by providing you with top notch technicians, superior products and exceptional customer service. We have serviced thousands upon thousands of satisfied, loyal customers and are so pleased to earn your referrals. You can count on Bonney for quick, reliable service and repair for your plumbing, electrical, heating and air conditioning needs. \n

Recommended by100%of homeowners
Avatar for E & J THOMPSON LEGACY INC
E & J THOMPSON LEGACY INC
New to Angi
Tankless Water Heater - Repair

Serving Cool, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

Signature Plumbing is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Shower Water Line
Drain Rough-In
New Shower Valve
Shower Drain
Rough-In Plumbing

+7

1 neighbors recently requested a quote
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