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

Avatar for Tony's Plumbing, Inc.
Tony's Plumbing, Inc.
4.9(
515
)
Tankless Water Heater - Repair

Serving Signal Hill, CA and surrounding areas

Approved (Corporate)

In business since 1994

Free estimates

Warranties offered

"In the process of buying a home, we had Tony’s to give an estimate on the inspection report items found. Even though he was busy he arranged his time to fit it into his day. His quote was reasonable. After buying the house we hired Tony’s to do the inspection repairs and was able to get an appt quickly. Chris and Winston were very nice and professional. It took longer to complete the job but that happens. On one of the days they were to come back to work, we had appts at the DMV so I arranged for Chris to drive over and pick up the house key so they could work while we were stuck waiting. The work they did passed the city’s inspection as well. Just as Chris and Winston were finishing up the job, the pilot light go out on the water heater. Thankfully the tank was still under warranty so the part was free. Once the part came in Paul was able to install it that day, which was a Fri so we would have hot water over the weekend. Mandie, Angie and Karen were a huge help during the whole process and are all very nice. I truly appreciated their patience with working with me through it all! We are also working with Tony’s to have the sewer pipe repaired and my interaction with John, who is their pro for this type of work has been super nice and patient while explaining things to me and answering my questions on the subject. This repair is still in the strategic stage as the city is involved but I have no doubts in John’s ability to fix the repairs. We also are immensely appreciative in his efforts working with the city! I definitely recommend Tony’s! They will be our plumber for as long as we live here!"
trailer jetter
opening the street
excavation
repairing the street
Response time1 day
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Good Guy Plumbing
Good Guy Plumbing
4.7(
82
)
Tankless Water Heater - Repair

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Huge job of relocating & rebuilding my entire sewer line and water mains. Came out same day as called. Quote for the Job the same day! Started the same day! Really responsive. Not the cheapest but a quality job and asap."
Good Guy Van!
Shower Valve Install
New 40 Gallon Water Heater Installed
Response time5 hrs
Recommended by94%of homeowners
Avatar for Service Champions Plumbing, Heating & AC
Service Champions Plumbing, Heating & AC
4.4(
50
)
Tankless Water Heater - Repair

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Kayvan was a wonderful service tech! He was on time and professionally checked out the water heater and the HVAC system. He was so polite and friendly. He explained the need for a new filter in the heating unit and showed me photos of the unit located in the attic. He also offered to do a friendly deed for free, which I greatly appreciated, He’s a great asset to Service Champions!"
Area Drain Cleaning
Plumbing
Plumbing
Garbage Disposal
Drain Cleaning

+13

Response time4 hrs
Recommended by79%of homeowners
Avatar for HARMONY ELECTRIC PLUMBING & AIR INC
HARMONY ELECTRIC PLUMBING & AIR INC
4.8(
36
)
Tankless Water Heater - Repair

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"They called us quickly and got a plumber out within a few days. Super thorough - tested all pipes and water sources to diagnose the problem. They were able to perform maintenance on most bathrooms the same day and improve the water temperature in our showers. Gave helpful, non-biased advice on potential further plumbing improvements. We will likely call this company again for any and all future plumbing needs."
845 neighbors recently requested a quote
Recommended by38%of homeowners
Avatar for Clear All Rooter Plumbing
Clear All Rooter Plumbing
4.4(
473
)
Tankless Water Heater - Repair

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Great experience. Friendly, knowledgeable, on-time and share great information about what was needed to address the issue with our tankless water heater, and also what to expect going forward. Excellent!"
New Gas line
Trench
Metter connection
New earth Quake shut off Valve
New trench less  pipe

+92

Response time4 hrs
Response rate85%
30 neighbors recently requested a quote
Avatar for Pristine Plumbing, Inc.
Pristine Plumbing, Inc.
4.1(
57
)
Tankless Water Heater - Repair

Serving Signal Hill, CA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"The installation was very efficient and the crew did an excellent job in regards to the plumbing hookups and testing. I highly recommend this company and would use them for future projects. I want to comment that this job was in a second floor condominium with very steep stairs and no elevator. To those who wonder how a very heavy 50 gallon water heater is naviga!ted down those stairs without scarring the newly painted walls, l can only say they managed perfectly. No dings anywhere. Good job guys"
Doing It Right!
Drain Repair
Garrett
Gas Installation
Tankless Heater

+6

Response time7 hrs
87 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for 1 TOM PLUMBER ANAHEIM / BREA
1 TOM PLUMBER ANAHEIM / BREA
5.0(
21
)
Tankless Water Heater - Repair

Serving Signal Hill, CA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

At 1 Tom Plumber Anaheim/Brea, timing is everything! We are a top rated plumbing , leak detection and water damage repair and restoration company proudly serving the surrounding areas for over 20 years. Our 1st priority is getting you back on track and restoring your property in a timely manner. This includes having our entire team of professionals help you throughout the process. We are unique amongst restoration companies, as our staff includes 20 plus years of professional home and commercial insurance claim adjusters. We pride ourselves in high rate of insurance claim approval because of our knowledge and thx detailed documentation. We make extra effort to get your claim presented completely and approved. \n

Leak Detection
Plumbing
Sewage Cleanup
Leak Detection
Plumbing

+70

Response time8 hrs
Response rate100%
31 neighbors recently requested a quote
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