4.6 
1.2k+ *The Angi rating for Plumbing companies in Castaic, 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 Castaic, 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 July 04, 2025
Serving Castaic, CA and surrounding areas
Approved
In business since 1981
Free estimates
Emergency services offered
"Excellent service. The plumber, Tony, was very friendly and helpful. He went above and beyond to help restoring the plumbing I took apart myself. A thumb up! I will use the service again!"
+542
Serving Castaic, 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 Castaic, CA and surrounding areas
Approved
In business since 1988
Credit card accepted
Offers commercial services
"Prompt - Called at 8am for service; Plumber arrived about 45 minutes after call for service. Fast and efficient - done with both service items in about 10 to 15 mins tops"
Serving Castaic, CA and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"The plumber arrived quickly and was very professional. I definitely recommend their services."
+10
Serving Castaic, CA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Great overall experience . Had a need for emergency water main regulator repair ended up needing a replacement . Called explained my situation , was overall very impressed with the professionalism and honesty of this business . Highly recommend if you want professional fair and honest price ."
+16
Serving Castaic, CA and surrounding areas
Approved
In business since 1986
Free estimates
Credit card accepted
"My shower faucet starting leaking in between the bathroom walls creating a problem. After being told by 2 other contractors that I needed to replace all pipes leading to the faucets, I sent Diplomat videos of the situation, and Mike showed up the next day with the parts he needed to replace the stems and all new hardware.Everything works excellent and came in at 1/5 the cost of the other 2 Angi recommended plumbers who were clearly out to rip me a new one.Mike and I discussed the downside of hiring contractors,and, being one myself,I had to agree there are some companies out there who don't really care if they ever get repeat customers.From my experience, honesty, word of mouth, and repeat customers are the key to a successful business, and Mike's Diplomat Plumbing has me as a customer for life. Highly recommended, stellar service."
Serving Castaic, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"This company is the best. They were upfront on the cost of the repairs and did a fantastic job. They will aways be our first choice for any future plumbing projects. Thank you, California Drains!"
+11
Serving Castaic, CA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Brandon from Owens Plumbing and Rooter came out today and did a fantastic job replacing my water heater! I couldn't be more happy with the work he did and appreciated his thoroughness and honesty about everything. He gave me a great deal and I will definitely be calling him back in the future for any plumbing needs. Highly recommend!"
Serving Castaic, CA and surrounding areas
Approved
In business since 2006
Free estimates
Emergency services offered
"Ismael Reyes provided excellent service. He replaced my water heater quickly and efficiently. He was professional, kind and courteous. And, unlike other plumbing companies, he is fair and reasonable priced. I would highly recommend him."
Serving Castaic, CA and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Can you say you have a favorite plumber? I can. Had these great guys out recently to service the tankless water heater, who also recommended a filter to reduce the necessary descaling intervals (and subsequent expensive filter replacements). Also have had them out to clear sewer and drain lines, both at home and at a church we attended. Always fast, on-time, efficient, and clean. Have recommended to people I care about that are in need of trustworthy experts. No BS, just professionals that know their trade."
+27
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