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

Avatar for True Blue Plumbing Co.
True Blue Plumbing Co.
4.6(
77
)
Tankless Water Heater - Repair

Serving Santa Rosa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Credit card accepted

"Marcell and True Blue Plumbing were a pleasure to work with. He was friendly and took pride in his work and client satisfaction. Marcell installed a gas line for me in Napa within the same week of providing the estimate, and he even helped me flush out my water heater free of charge. I will definitely use him for any future plumbing needs. My profession is a property manager and itâ s hard to find quality vendors like True Blueâ ¦Thanks again."
Response time7 hrs
28 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
103
)
Tankless Water Heater - Repair

Serving Santa Rosa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"The plumber came almost at the end of the appointed time. When he arrived, he was fairly arrogant, and refused to negotiate despite coming from Angie's list. Lastly, he repaired the leaky line in about an hour, charging $530, and also did not provide the water plastic box for water line. We had to purchase one from another store. When I paid for the invoice, they didn't tell me that they are charging additional 3% with credit card. All in all, they did the work, but at a high price, and so so customer service."
Response time2 days
5 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for GOLDENLINE PLUMBING LLC
GOLDENLINE PLUMBING LLC
5.0(
15
)
Tankless Water Heater - Repair

Serving Santa Rosa, CA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

"This company replace my water heater, and sink problems with leaking pipes,I am very satisfied with my overall experience with this company, before I agree to do the job with them staff was very friendly, professional and happy to answer all my questions, price was very fair and budget friendly, job was do very fast, very professional and clean , I recommend their services to everyone, you will not get disappointed."
Tankless Water Heater
House Filtration System
Earthquake Valve Install
Roman Tub Faucet
My jobs

+5

2 neighbors recently requested a quote
Avatar for Ray's Rescue Plumbing
Ray's Rescue Plumbing
4.8(
18
)
Tankless Water Heater - Repair

Serving Santa Rosa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Emergency services offered

Warranties offered

"I would highly recommend Ray’s Rescue Plumbing. He was very clean, prompt, courteous and knowledgeable. We had several issues ranging from leaks, repairs and installing a tankless water heater. Ray’s prices were competitive and he actually saved us a few thousand dollars from a previous bid from a ‘not so honest’ plumber."
Install - hot water heater
Install - hot water heater
Install - hot water heater
Tankless Install
Happy to help

+2

Response time4 hrs
Response rate95%
1 neighbors recently requested a quote
Avatar for Hill's General Plumbing Services
Hill's General Plumbing Services
4.8(
21
)
Tankless Water Heater - Repair

Serving Santa Rosa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"This company replace my water heater, I am very satisfied with my overall experience with this company, before I agree to do the job with them staff was very friendly, professional and happy to answer all my questions, price was very fair and budget friendly, job was do very fast, very professional and clean , I recommend their services to everyone, you will not get disappointed."
Hill's General Plumbing Services
Hill's General Plumbing Services
Hill's General Plumbing Services
Hill's General Plumbing Services
Hill's General Plumbing Services

+5

Response time4 hrs
Response rate85%
5 neighbors recently requested a quote
Avatar for Bragg Home Services
Bragg Home Services
4.7(
47
)
Tankless Water Heater - Repair

Serving Santa Rosa, CA and surrounding areas

Approved

In business since 1968

Free estimates

Small jobs welcome

"David was super helpful in looking at my Trane furnace and making all of the recommended adjustments. I especially appreciated the timexhextook to assess the health of the heater and suggestions for making some changes to get cleaner air. Also what to expect in the next few years. Bragg has been a reliable partner for my heating and and water heater"
Response time2 days
Response rate100%
122 neighbors recently requested a quote
Avatar for Moore Home Services
Moore Home Services
4.4(
225
)
Tankless Water Heater - Repair

Serving Santa Rosa, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Starting with JP the senior technician, the inspection and documentation of existing conditions was thorough, knowledgeable, and complete. Moore recommended the replacement system that would be more durable and require lower maintenance over time, and wrote a detailed proposal with a floor plan documentation. We were given financing options at the time of signing the agreement, as well. The team- five technicians!- were properly suited with protective gear and followed COVID protocols at all times on our property, inside and out. They wore shoe protectors while inside, kept us fully appraised at every task (all interior registers replaced in 11 rooms), and were extremely respectful of our space, privacy, pets, and kept noise and speaking to low levels. (our extremely friendly indoor cat got lots of attention from the team!) The work required three days to fully replace all ductwork in a two-story home with attic and crawl space, and Paul the team leader would check in with us each morning with a briefing of each days' activities. The entire team was constantly in learning mode, with the senior technicians mentoring and teaching the younger team members, which greatly impressed me. They finished on time and without any delay or disruption; they cleaned each work area and removed all debris, packaging, and the old system. We've owned this house for 20 years, had many repairs and replacements, and Moore has raised the bar so far for quality and value. While they were the middle bid in terms of overall cost, we believe we received higher value that even the highest bid. I can strongly recommend them to anyone planning repair work on their existing system, new installations, or maintenance. After getting few responses from HVAC contractors working in new homes in Sonoma County, we were pleased to know that Moore specializes in existing homes and responded to our online request within minutes. I'd be happy to share my experience in person, if required. Martin Waldron Sebastopol, CA"
After 1
 View 1
 Right Side View
Perfect Retrofit
After 2

+15

28 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for BluDog Rooter & Plumbing Co.
BluDog Rooter & Plumbing Co.
5.0(
5
)
Tankless Water Heater - Repair

Serving Santa Rosa, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

BluDog Rooter & Plumbing Co. is a local, family-owned and operated plumbing company proudly serving homeowners throughout Sonoma County. Formerly Yorkshire Plumbing & Drain Services, we’re the same local owners, team, and commitment to quality service—just with a new name.\n\nWith more than 20 years of construction experience and over a decade specializing in residential service plumbing, we believe in doing things the right way: honest recommendations, clear communication, quality workmanship, and treating your home with respect.\n\nFrom clogged drains and sewer problems to water heaters, leaks, gas lines, plumbing repairs, and installations, our goal is simple: make your plumbing problem a little less stressful.\n\nBluDog Rooter & Plumbing Co. is fully licensed and insured (CA License #1108627) and proudly locally owned right here in Sonoma County.\n\nYour home’s best friend.

Water heater install
Water heater installation
8 neighbors recently requested a quote
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