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Top-Rated Plumbers in Altadena - Updated Nov 2026

Avatar for So-Cal Plumbing & Rooter
So-Cal Plumbing & Rooter
4.7(
235
)
Drain Clog or Blockage - ClearWater Heater - Install or ReplaceWater Main - Install, Replace or Repair+13 more

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1998

Free estimates

Emergency services offered

"I would like to thank Mr.Jose Montrel for all his help. He was an outstanding plumber to work with, through his profession, honesty, and integrity with the job. If I could recommend anyone for doing your plumbing, I would recommend him as my first choice. We need more people like him in the work force. And even though he wasnâ t the one that fixed the piping, he helped us saved thousands of dollars.thanks Mr Montrel."
One of our truckers
Our Jetter
Wotking hard for our clients
New Drainage Completed
New Clean-out Patch

+4

Response time4 hrs
Response rate95%
83 neighbors recently requested a quote
Avatar for Patrick Morrissey
Patrick Morrissey
5.0(
12
)
Bathtub Install or ReplaceDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+15 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I needed help with a plumbing issue and I called Morrissey Family Plumbing. They responded immediately and sent Patrick out asap to help with the leak. They were professional and very reasonable with the price. I definitely recommend them and will be using them for all my plumbing needs."
Replace Pipes
Cut to place
Fitting pipes
New pipe under sink
Clogged bath

+8

Response time1 hour
Recommended by100%of homeowners
Avatar for Alliance United Rooter & Plumbing Inc.
Alliance United Rooter & Plumbing Inc.
4.9(
124
)
Gas PipingSewer Main - ClearSewer Main - Install, Replace or Repair+10 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide. It is our mission to provide excellent workmanship and complete customer satisfaction from the start to completion of a project. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

drain under kitchen sink
drain under kitchen sink
drain under kitchen sink
drain under kitchen sink
drain under kitchen sink

+62

5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Leon Plumbing
Leon Plumbing
4.8(
79
)
Water Heater - Repair or ServiceTankless Water Heater - InstallWater Heater - Install or Replace+8 more

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1983

Free estimates

Emergency services offered

"It is so nice when you can find a plumbing company that you can trust. We had a clogged drain and called Leon Plumbing after I had gotten their number a while ago. I am glad I had kept the number. The plumber came on time, very professional and friendly. Made sure that he covered every part where he was working so it would not get wet or dirty. He explained everything he was doing and even gave advice on what we can do so we dont need to call a plumber often. Their estimate was fair and the final cost was within the estimate."
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%
14 neighbors recently requested a quote
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FAQs for plumbing projects in Altadena, CA

It depends on the severity of the leak. Minor leaks may not require immediate attention and can be scheduled during regular business hours. However, if the leak is causing significant water damage or you can't control the flow of water, it's best to call an emergency plumber right away. Addressing serious leaks promptly can prevent structural damage and mold growth, potentially saving you money on extensive repairs later.

A journeyperson plumber is a licensed professional with a state-issued permit who installs and repairs piping for water and heating systems under the supervision of a master plumber. They have completed extensive training and amassed significant experience leading teams, drafting blueprints, and designing comprehensive plumbing installations. Their proven expertise ensures that they can handle both routine repairs and complex projects with precision.

The Altadena, CA homeowners’ guide to plumbing services

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