5-Star Precision.
Verified by South Bay Homeowners.

“Had a leak in my unit that my tenant brought to my attention around 6pm. Plumbers were there within the hour and the problem was solved before the night was over. Excellent service. Go to plumbers for sure.”

— Dillon L. · Google

“They installed a whole house water filtration system. Great team with great customer service. Highly recommend!!”

— Tina N. · Google

“Called Mainline out for a drain stoppage and they cleared it very fast. Ryan was extremely helpful and made the process very stress free. They cleaned up after themselves too!! I'd highly recommend this company to anyone.”

— D Hardesty · Google

“We had a water heater emergency at one of the properties we own this past Memorial Day. Ryan at Mainline could've easily gouged us on pricing being a holiday weekend emergency, but he was up front with his costs. Honest and fair — hard to find these days.”

— Irwin C. · Google

“Great service and high quality work. Exceptional pricing as well. Mainline replaced the plumbing on my house and added an extra bathroom and I can't be happier with the service.”

— Mitchell M. · Google

“Came in the rain and fixed the pump. Nice well mannered young man. Easy to talk to. Explained everything he was doing. This is my third time I have done business with this company and they are amazing and trustworthy.”

— Lela R. · Google

“Mainline replaced our entire sewer line using trenchless technology and we couldn't be happier. The crew was professional, kept our yard completely intact, and finished in a single day exactly as promised. The camera inspection beforehand gave us complete confidence in the diagnosis.”

— Michael T. · Google

“We had a Navien tankless water heater installed and the difference is night and day. The technicians were Level 5 certified and it showed — they walked us through every aspect of the system, set it up perfectly, and our energy bill dropped noticeably the first month.”

— Sandra R. · Google

“Called Mainline at 11pm for a burst pipe emergency and they had a technician at our door in under an hour. The repair was done cleanly and completely that same night. No overselling, no drama — just fast, competent work when we needed it most. These guys are the real deal.”

— Carlos M. · Google

“Jesse and his crew did a full sewer line replacement at our Redondo Beach home using pipe bursting. No trenches, no destroyed landscaping — they were in and out in one day. Our neighbors couldn't believe it. We've recommended them to everyone on our street.”

— Jennifer W. · Google

“Had them come out for a camera inspection after another plumber quoted us $15k to dig up our entire front yard. Mainline showed us exactly what was wrong on the screen, fixed it trenchless for a fraction of the cost. Saved us thousands. Can't say enough good things.”

— David K. · Google

“We manage 12 rental units in Torrance and Mainline is the only plumber we call. They're fast, fair on pricing, and always clean up. Jesse understands that when a tenant has a plumbing emergency, every hour counts. Absolute lifesaver for property management.”

— Rachel P. · Google

“Hired Mainline for a Rinnai tankless install after getting quotes from three other companies. They were the most knowledgeable by far — explained the gas line sizing, venting requirements, everything. Install was clean and the unit runs perfectly. Worth every penny.”

— Greg S. · Google

“Hydro jetting service for our restaurant in Manhattan Beach. Grease buildup had our kitchen drain backing up every week. Mainline cleared the entire line and it's been flowing perfectly for 4 months now. They also set us up on a maintenance schedule. Very professional operation.”

— Maria L. · Google

“Gas line work for a custom fire pit in our backyard. Everything was done to code, pressure tested, and inspected. The crew was clean and respectful of our property. Jesse came out personally to check the final install. That kind of attention to detail is rare.”

— Tom B. · Google

“Whole house repipe — PEX throughout. They patched every wall opening neatly and our water pressure is noticeably better. Two-day job, fair price, zero surprises on the bill. The 'Property-Friendly Plumber' thing isn't just marketing — they actually live up to it.”

— Angela H. · Google