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Top-Rated Water heater repair or service pros in Norwalk - Updated Nov 2026

Avatar for Payless Water Heaters & Plumbing
Payless Water Heaters & Plumbing
4.2(
132
)
Water Heater - Repair or Service

Serving Norwalk, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Perfectly. They cleaned everything up, explained how the system worked and how often it needs attention, and hauled away the old hot water heater. They arrived on time, worked steadily, and finished before dinner time."
New Tankless Water Heater Installation
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Response time8 hrs
Response rate100%
Recommended by73%of homeowners
Avatar for Service Champions Plumbing, Heating & AC
Service Champions Plumbing, Heating & AC
4.4(
50
)
Water Heater - Repair or Service

Serving Norwalk, 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
)
Water Heater - Repair or Service

Serving Norwalk, 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."
824 neighbors recently requested a quote
Recommended by38%of homeowners
Avatar for Alpine Plumbing, Heating, and Air
Alpine Plumbing, Heating, and Air
4.7(
36
)
Water Heater - Repair or Service

Serving Norwalk, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"Mike was great! He was friendly and knowledgeable. He let me know all the options for replacing my water heater and did the work quickly and neatly. Will definitely be calling him again!"
Plumbing - Drain Cleaning Project
Sewer cleaned of roots and ready for lining
Prepping pipe for lining by removing massive roots
Mixing resin for liners, this resin gardens to create a solid pipe
Sewer robot in the pipe

+26

Response time9 hrs
10 neighbors recently requested a quote
Recommended by67%of homeowners
Avatar for Service All Stars Heating and Air Comfort
Service All Stars Heating and Air Comfort
4.4(
139
)
Water Heater - Repair or Service

Serving Norwalk, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"I thought this company did a good job. They put in the furnace and it seems to work. The problem is they never got a permit for the work. Then they never got the inspection from the city. Both the permit and the inspection were part of the contract. I do not know anything about furnaces or furnace installation. Without the inspection, I do not know if the furnace was installed correctly. Is it sending carbon monoxide into our house? I must have called them 100 times in the last year to get the permit and inspection. they simply refuse. I have sent a complaint to the contractor state license board, I do not recommend this contractor."
Ductless Systems
Teamwork!
Delivery Truck
Job Done!
Another One!

+2

Response time1 day
Response rate98%
9 neighbors recently requested a quote
Avatar for Cal-Tech Plumbing & Drains, Inc.
Cal-Tech Plumbing & Drains, Inc.
4.9(
39
)
Water Heater - Repair or Service

Serving Norwalk, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Personable, easy to work with and good listeners. I was pleased with the installation of the tankless water heater. It was professionally done, appearance of piping was good and upon completion they left the work site clean. Advised on other plumbing projects that could be beneficial to me and I appreciated the fact that Caesar corrected a wrong installation under the sink. I definitely and highly recommend Cal-Tech to friends and anyone who needs any sort of plumbing projects done. LNT :)"
cast iron
cast iron
main drain
clean out
clean out repair

+8

Response time12 hrs
9 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Clear All Rooter Plumbing
Clear All Rooter Plumbing
4.4(
473
)
Water Heater - Repair or Service

Serving Norwalk, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"2 water heaters replaced. Very responsive, parts and service available very quickly. Also very careful indoors to install water heater upstairs. Quality work completed on time. Will definitively call again."
New Gas line
Trench
Metter connection
New earth Quake shut off Valve
New trench less  pipe

+92

Response time4 hrs
Response rate85%
31 neighbors recently requested a quote
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FAQs for water heater repair or service projects in Norwalk, CA

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Norwalk, CA homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.