4.6 
1.2k+ *The Angi rating for Plumbing companies in Altadena, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.
*The HomeAdvisor rating for Plumbing companies in Altadena, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.
Last update on December 24, 2025
Serving Altadena, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"Best plumber I have used in CA. Great service, worked clean and great work."
+3
Serving Altadena, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1998
Free estimates
Emergency services offered
"I had an excellent experience with Top Line Plumbing on 11/26. Jose was extremely knowledgeable, hardworking, and honest. He approached our plumbing issue with professionalism and provided clear explanations every step of the way. His expertise and dedication truly set him apart. I highly recommend Top Line Plumbing for anyone in need of reliable and skilled service! Michelle M"
+4
Serving Altadena, CA and surrounding areas
Approved
In business since 1981
Free estimates
Emergency services offered
"Customer service is ALWAYS excellent as I have used Western Rooter and Plumbing many times."
+542
Serving Altadena, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Credit card accepted
"Alvin was extremely helpful in not only solving the immediate problem but I also in giving me valuable advice regarding work done by a prior plumber and how there may arise future problems in the area covered by the prior plumber’s work."
Serving Altadena, CA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Patrick and Mitch came out right away to look at my plumbing needs. Sent links to possible replacement faucets to choose from. This is a family owned business which I love. Have no hesitations about using them again or referring them to my friends and family."
+8
Serving Altadena, CA and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"John was very responsive. I called in the middle of the day, he listened to the issue I was having, and he sent his tech, Victor, to my home that same day. Victor was prompt, very professional and knowledgeable. He needed to replace the components inside my toilet tank and fix the shut-off valve to the toilet. He had everything he needed, was able to get the job done quickly, and I could tell the work was quality. I will definitely call John and Victor again for any plumbing needs. I'm relieved to have found them as I've struggled with finding plumbers that are prompt and responsive!"
+125
Serving Altadena, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2011
Free estimates
Warranties offered
"We called on a Sunday morning and Ideal Plumbing had sent a plumber to fix the problem by 9am. Their work was efficient and cost effective. Would recommend them."
+1
Serving Altadena, CA and surrounding areas
Approved
In business since 1999
Free estimates
Emergency services offered
"Bill was my Plumber; very Profesional, licensed, experienced, great communication skills, very knowledgeable, punctual, great coordination skills, very organized, dedicated Plumber, mechanically inclined, good problem solver, in good shape and very pleasant to work with. Thank you, Dynamite plumbing for hiring Bill. Great choice."
+10
Serving Altadena, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1983
Free estimates
Emergency services offered
"I have a Rinnai tankless water hater that was not supplying us with hot water, and 2 different plumbers had tried to improve it already. Sev came out and told me Leon Plumbing is backed by the Rinnai company. What a relief! He explained to me the issue and why the things the previous plumbers did made no difference. He was very clear and informative the whole time and even told me my Rinnai needs servicing annually and would reach out when that time comes so I don't forget. Our hot water is running again and I will gladly use Sev at Leon Plumbing again. Professional, friendly, and communicative."
+8
Serving Altadena, CA and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Yes he has fixed my shower valves by switching the cartridges. Also fixed my main water line that had a pinhole leak from the meter to the house shut off valve. I recommended him to my sister and he replaced her kitchen sink angle stops."
+6
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