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Top-Rated Water heater installers and replacers in South Pasadena - Updated Nov 2026

Avatar for Speedy Water Heaters and Plumbing
Speedy Water Heaters and Plumbing
5.0(
21
)
Water Heater - Install or Replace

Serving South Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"The entire process from the initial call to actually getting to take a shower was easy and pleasant with Speedy Water Heaters. They were upfront with pricing, quick to schedule, installation was clean and timely, the tech was knowledgeable, efficient and so patient with all my questions. I would definitely recommend Speedy Water Heaters to my friends and family! Great job!"
Response time3 hrs
Response rate93%
Recommended by38%of homeowners
Avatar for Payless Water Heaters & Plumbing
Payless Water Heaters & Plumbing
4.2(
132
)
Water Heater - Install or Replace

Serving South Pasadena, 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
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+19

Response time8 hrs
Response rate100%
Recommended by73%of homeowners
Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Water Heater - Install or Replace

Serving South Pasadena, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"It went very well. John was very professional, pleasant, courteous and fast. He even made a trip to Home Depot to purchase faucet tube nipples to prevent future kinking, as was one of the problems with the water pressure that I didn't even realize I had. He also replaced the water valve under the sink for me because the old one was worn and could possibly leak. Absolutely pleased and I would highly recommend."
Ruben installs a new drainage system under a customers home. Working in a crawl space is rough, but we do what is needed.
Backing up? Got roots? Blast those roots out with a Hydro Jetter! We use a wart hog nozzle that combines controlled rotation with a unique 8 jet cutting configuration optimized for removing roots. It’s better with a jetter! Call us! We got this! ??
Sewer Line Camera
No drain clog too big or small, Western Rooter covers them all!
Justin clearing a Kitchen sink back-up after the Memorial holiday.
HALO 5 whole house water filtration system.

+542

Response time12 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Leon Plumbing
Leon Plumbing
4.8(
79
)
Water Heater - Install or Replace

Serving South Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1983

Free estimates

Emergency services offered

"I called two other plumbing services and obtained estimates to install two tankless water heaters to replace ancient 50 gal. and 40 gal. tank water heaters. He called me back right away and kept his appointment time. He carefully explained how it would work best and his estimate was lowest. One water heater was located in a utility closet on the side of the house. He came up with the idea of taking the door off and installing an outdoor tankless water heater which saved me money by not having to install venting up to the roof. He also followed up with me by providing me with the SoCal Gas Co. and manufacture's rebate information which will save me another $1800!"
Tankless Installation (RUR199e with wifi)
Exterior Tankless Water Heater
Dual Tankless Water Heater Installation
Tankless water heater ACE PRO
Tankless Water Heater Service

+8

Response time8 hrs
Response rate94%
15 neighbors recently requested a quote
Avatar for G M C Plumbing, Inc.
G M C Plumbing, Inc.
4.9(
86
)
Water Heater - Install or Replace

Serving South Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"I had a water heater replaced & they had to clear out the overflow piping cuz it was not draining. Turns out the outlet was outside buried in a planter, but they found it and fixed it. Great work, thank u."
New Drainage
Old  shower Drainage
New kitchen faucet
New Drainage
New Drainage- SEWER LINE

+3

Response time5 hrs
Response rate97%
24 neighbors recently requested a quote
Avatar for HARMONY ELECTRIC PLUMBING & AIR INC
HARMONY ELECTRIC PLUMBING & AIR INC
4.8(
36
)
Water Heater - Install or Replace

Serving South Pasadena, 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."
826 neighbors recently requested a quote
Recommended by38%of homeowners
Avatar for Complete Plumbing & Rooter
Complete Plumbing & Rooter
4.9(
30
)
Water Heater - Install or Replace

Serving South Pasadena, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

We are 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

Logo
Recommended by57%of homeowners
Avatar for Complete Plumbing & Rooter
Complete Plumbing & Rooter
4.9(
30
)
Water Heater - Install or Replace

Serving South Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Credit card accepted

"It was a pleasure having them replace our hot water heater. They were very professional and they made sure the area was clean when they finished. More importantly I will use them again if we have a plumbing problem."
Response time9 hrs
9 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for L.A. Plumbing Pros
L.A. Plumbing Pros
4.7(
95
)
Water Heater - Install or Replace

Serving South Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"Victor from L.A. Plumbing Pros came out Jan. 28 to start my water heater. He was here within a half hour of his call. He gave me a ball park price over the phone for doing the job but told me when he got here he did not realize I was within a couple of blocks of the Altadena fire. He said there is no charge. He was very gracious and kind and I am so grateful to him. He got the water heater to work in just a couple of minutes. Thanks again Victor."
Remodel
Reroute irrigation valves
50 gallon water heater
Water pressure regulator
Remodel

+25

Response time3 hrs
Response rate95%
4 neighbors recently requested a quote
Avatar for Ideal Plumbing Inc.
Ideal Plumbing Inc.
5.0(
21
)
Water Heater - Install or Replace

Serving South Pasadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"Stop looking for a plumber! Sam is the man for you job. I can’t say enough about him and his team. He worked within our budget, did top notch service, and even offered free advice for our other bathroom. Sam installed a tankless hot water heater, ran plumbing out to a brand new Adu, and helped us complete a perfect compact bathroom. Sam is a master of his craft and priced well. Thanks again Sam!!!"
Additional Photos
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+1

Response time7 hrs
Response rate100%
Recommended by66%of homeowners
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