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 November 05, 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 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 project ended up not being a leak caused by the toilet but rather a leak from my foundation.The gentleman from Diplomat checked around the outside perimeter of my house and informed me of the situation. This man is a Saint ,coming out yesterday when I expressed I had 2" of standing water in a bathroom, in one of the "worst rain storms in the last 10 years in my area". I offered to pay him for his trouble and apologized for thinking the trouble was a Leaky" toilet but he refused any compensation just saying "remember us if you ever need a plumber in future""
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
Serving Castaic, CA and surrounding areas
Approved
In business since 2013
Emergency services offered
Small jobs welcome
"Prompt and professional. Highly recommend."
+6
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