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."
About Us
Knockout Plumbing has been serving the South Bay for 20+ years
About Knockout Plumbing
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 its honest workmanship, prompt service, and long-standing reputation built on customer trust. Whether for routine maintenance or urgent repairs, Knockout Plumbing is dedicated to providing exceptional service the community can depend on. View all our services →
Licensed, Bonded & Insured | License #854512
About the Founder
Knockout Plumbing was founded by Carlos Manzano Jr., whose background as a boxer shaped the spirit and identity of the company. The name "Knockout" was inspired by Carlos's years in the ring, where discipline, resilience, and precision were the keys to success.
He brought those same qualities into his plumbing work—showing up prepared, working with integrity, and tackling every job with the determination to get it done right the first time.
What started as a small family effort soon grew into a well-respected local business, built on Carlos's reputation for honesty, hard work, and dedication to his community. Today, the company continues to honor its roots by treating customers like family, taking pride in every job, and always aiming for a "knockout" result.
Schedule Service TodayWhy Choose Us?
Our dedication to fulfill our customer's needs has always been imperative to the way we operate. We adapt our services to deliver the reliable, professional plumbing solutions you deserve.
- 24/7 Emergency Services
- Licensed, Bonded & Insured
- Honest, Upfront Pricing
- 20+ Years Experience
- Senior Citizen Discounts
- Free Estimates on Installations
Built on Trust, Service, & Quality Work
"We love what we do, and we believe in it. It's not just plumbing to us, but a philosophy applied to every area of our lives. The plumbing expertise is what made us famous, but it's our commitment to people that keeps customers coming back."
24/7 Emergency Plumbing Service - We're Always Here When You Need Us
QUICK AND RELIABLE REPAIR OF EMERGENCY LEAKS & PIPE BURSTS
(310) 493-0348What Our Customers Say
Real reviews from real South Bay customers
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!"
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."
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!"
Rene V.
Verified Google Review
"Great service! Carlos cleaned my drain and did an excellent job — very professional plumber."
Our Location
P.O. Box 882
Lomita, CA 90717