PL
P.L.
Verified Google Review
"Carlos offered the best deal after I compared multiple companies. The job was complicated but completed cleanly and on time. Everything went smoothly."
EMERGENCY PLUMBING
We're open 24/7/365 because plumbing emergencies don't wait. Call us now.
PLUMBING MAINTENANCE
Leaky faucets, clogged drains, or routine maintenance? Call us for service
Serving the South Bay for 20+ years
Knockout Plumbing, based in Lomita, California, has proudly served the South Bay and surrounding areas for over 20 years. As a licensed, bonded, and insured family-owned company, we are committed to delivering trustworthy and reliable plumbing solutions. Our team is known for honest workmanship, prompt service, and a reputation built on customer trust.
Licensed, Bonded & Insured
Family-owned and operated, we're dedicated to treating every customer like family. Our commitment to quality work and honest pricing has made us the South Bay's trusted plumbing partner.
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Commercial Services
From restaurants to office buildings, we handle all your commercial plumbing needs with minimal disruption to your business.
Residential Plumbing
From leaky faucets to complete water heater installations, we handle all your home plumbing needs with care and expertise.
Our Most Popular Services
Professional plumbing services for residential and commercial properties throughout the South Bay area.
Water Heaters
Installation, repair, and replacement of gas and tankless water heaters with 1-year warranty.
Drain Cleaning & Hydro Jetting
High-pressure water jetting and expert drain cleaning for stubborn clogs in kitchens, bathrooms, and main lines.
Gas Line Installation & Repair
Emergency gas leak detection, repair, and new gas line installation for safe, code-compliant service.
Sewer Line Services
Comprehensive sewer line cleaning, repair, and replacement with video camera inspections.
Fixture Installation
Expert installation and repair of toilets, sinks, faucets, and all plumbing fixtures.
Video Camera Inspections
Advanced camera technology to accurately diagnose plumbing issues and sewer line problems.
Leak Detection & Repair
Professional water leak detection and repair to prevent water damage and high bills.
Garbage Disposals
Professional installation, repair, and replacement of garbage disposals for your kitchen.
24/7 Emergency Plumbing Service - We're Always Here When You Need Us
QUICK AND RELIABLE REPAIR OF EMERGENCY LEAKS & PIPE BURSTS
(310) 493-0348
LIMITED TIME OFFERS
Save Big on Quality Service
Professional plumbing services at prices that make sense. Choose the offer that works best for you.
NEW
10% OFF
NEW CUSTOMER SPECIAL
Any Plumbing Service
For new customers only
One-time use per household
Valid on any service
Cannot be combined with other offers
15% OFF
SENIOR CITIZEN DISCOUNT
For Our Seniors
Ages 65 and older
Valid ID required
Any plumbing service
Valid on all services, all year long
HOT DEAL
$100 OFF
WATER HEATER SPECIAL
Installation Special
Gas water heaters
Tankless water heaters
1-year warranty included
Cannot be combined with other offers
Call (310) 493-0348 to redeem any offer
What Our Customers Say
Real reviews from real South Bay customers
MB
Maria B.
Verified Yelp Review
"Best plumbing service! They respond super quickly and their pricing is very reasonable. I highly recommend Knockout Plumbing for all your plumbing needs -- professional, reliable, and efficient every time!"
AA
Amelia A.
Verified Yelp Review
"Would recommend to any family and friends. Definitely going to use their services again if needed. Very great customer service."
JC
Jennifer C.
Verified Yelp Review
"I highly recommend Knockout Plumbing to all my family and friends. They helped me with a plumbing emergency and later replaced my toilets after my home remodel. They get the work done efficiently and explain everything that they are doing. Their communication is great. Incredibly patient and trustworthy!"
RV
Rene V.
Verified Google Review
"Great service! Carlos cleaned my drain and did an excellent job — very professional plumber."