San Diego Commercial Backflow Prevention

Professional Backflow Prevention Service in San Diego

Solid Plumbing & Drains provides commercial backflow testing, backflow preventer repair, replacement, and installation throughout San Diego County, backed by over 20 years of plumbing experience. We help businesses address failed devices, compliance notices, cross-connection concerns, annual testing requirements, and new backflow prevention installations, 24 hours a day, 7 days a week.

Schedule Commercial Backflow Service

Tell us what backflow issue, testing requirement, or compliance notice your commercial property is dealing with and our team will help schedule the appropriate service.

Customer Reviews and Testimonials

(⭐412+) Google & Yelp Reviews

Excellent rating
Based on 154 reviews
Google star 1Google star 2Google star 3Google star 4Google star 5
Google star 1Google star 2Google star 3Google star 4Google star 5
The tech was prompt and did excellent work.
Michael Jones profile picture
Michael Jones
Google star 1Google star 2Google star 3Google star 4Google star 5
I had solid plumbing & drains come out to make some repairs on the drains for both my toilets and replaced my outdated laundry box that was not working. The techs Emmanuel and Mario were so professional, fast, and knew exactly what the problem was. They even went the extra mile and hooked up my washer and dryer once they finished the repairs. Everything works perfectly now. Solid service, fair pricing, and real attention to detail. I’d highly recommend them.
Elizabeth Hernandez profile picture
Elizabeth Hernandez
Google star 1Google star 2Google star 3Google star 4Google star 5
I needed a plumber to take care of a main line back-up on a Saturday. The team responded promptly, was very professional, and took care of the issue all in one visit. Thank you!
Jennifer French profile picture
Jennifer French
Google star 1Google star 2Google star 3Google star 4Google star 5
I had some landscape drain problems. Had one of the TV big company over and they essentially said they needed to bust up my concrete patio etc etc and they would not touch a lateral drain. Got in touch with Mario and had a great conversation with him on the problem. He came over with his crew Emanuel and Angel. Mario diagnosed the issue and created a plan of attack. The main drain line was full of roots but he got them and the issue if FIXED. They were pleasant to deal with, very professional and did a great job. I will definitely go back to them for any further inside or outside plumbing problem! Thank you Mario!
Joe Vaccaro profile picture
Joe Vaccaro
Google star 1Google star 2Google star 3Google star 4Google star 5
Great service. Quick response and reasonable prices.
Nance Lakdawala profile picture
Nance Lakdawala
Google star 1Google star 2Google star 3Google star 4Google star 5
Mario and his crew were extremely professional and very thorough during their job. We had sewage back ups and burst pipes and they worked quickly to get the job done. I would 100% recommend Mario to anyone with plumbing concerns.
Brent Teraoka profile picture
Brent Teraoka
Google star 1Google star 2Google star 3Google star 4Google star 5
Solid Company & Drains Representatives reported as scheduled and came with an attitude of getting the job done. They secured their ladder, hopped up in the attic and within 5 minutes Mario had determined the problem. He took pictures of the area and sent them to me on my phone. He explained each photo. Incredible! Additionally, he suggested that I get a specialty company to use special tools to determine if there is additional water damage in the wall area that they could not see. I really appreciated that suggestion. Thanks to Mario and Angel for their professionalism, friendly attitude, and great plumbing skills!
Claudette Lobbins profile picture
Claudette Lobbins
Excellent rating
Based on 131 reviews
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
Emmanuel and Angelo are the best team! They showed up at my house in El Cajon within 30 minutes of calling. We had been dealing with this issue for almost a year, and they were the first ones to actually figure it out. They ran a camera down the drain, found the clog right away, cut out the damaged pipe, and replaced everything properly. Great pricing, super professional, and easy to work with. Highly recommend Solid Plumbing & Drains!
David W. profile picture
David W.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
i hired Mario and his crew (Emmanuel and Angel) today for a landscape drain issue after turning away one of the big TV companies that essentially refused the work. Mario showed up on time, reasonably diagnosed the issue and made a game plan. In the end he was able to clear the problem! They left the job clean. very professional and job well done! thank you!!!
J V. profile picture
J V.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
Mario arrived before he said he would. Pleasant & knowledgeable. Daniel assisted, and they resolved the blockage. Very grateful; highly recommend this company!!!
Linda A. profile picture
Linda A.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
I had a patio drain that was very sluggish. Mario and Angel came and took 2 hours unblocking a mountain of mud from down the line. They were professional, resourceful using multiple pieces of equipment and persistent working till the blockage finally gave way.They also had to go through my house to get to drain and they were very neat laying down plastic to protect my floors. I am a very happy and highly recommend them.
M R. profile picture
M R.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
We have used Solid Plumbing & Drains for multiple projects at our property and we have been extremely happy with their quality of work! Mario is very knowledgeable and a great guy to work with. He and his team really care about doing a good job and satisfying their clients. Highly recommend this company!
Maria M. profile picture
Maria M.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
Mario was right on time and took care of the problem quickly, efficiently, and cleanly!
Loli W. profile picture
Loli W.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
Such a great company to work with. They truly help out and are very patient and knowledgeable. I love that they also answer right away and are willing to go the extra mile.
David M. profile picture
David M.
Yelp star 1Yelp star 2Yelp star 3Yelp star 4Yelp star 5Verified
They responded very fast! Great job! Very professional! Reasonable pricing! Highly recommend!
Aaron H. profile picture
Aaron H.

Reliable Professional Backflow Prevention Service in San Diego

Solid Plumbing & Drains provides commercial backflow prevention service throughout San Diego for businesses, managed properties, apartment communities, restaurants, offices, and other commercial facilities. Our licensed plumbers provide backflow testing, backflow preventer repair, replacement, and installation for properties that need to address device failures, cross-connection concerns, or local compliance requirements.

About Our Backflow Prevention Service in San Diego

Commercial properties throughout San Diego may require backflow prevention because of irrigation systems, fire protection connections, water-pressure changes, and other cross-connections within the plumbing system. Our team provides backflow testing, device evaluations, repairs, replacements, and new installations based on the property’s plumbing configuration and applicable requirements.

Why Commercial Properties Trust Our Backflow Prevention Team

Fast Help for Backflow Concerns and Compliance Notices

If a device fails testing or needs attention, we explain the findings and recommend the appropriate backflow preventer repair, adjustment, replacement, or installation based on the condition of the system.

Licensed, Insured, and Backflow-Trained Specialists

Our commercial plumbers provide backflow prevention installation, repair, replacement, and related plumbing service for commercial properties throughout San Diego. When certified backflow testing or reporting is required, the work should follow applicable City of San Diego testing and documentation requirements.

Clear, Honest Pricing and Simple Explanations

Backflow regulations can feel confusing, so we keep our pricing and communication simple. Before starting any work, we explain what backflow testing will involve, what we look for, and what happens if a device fails. You receive clear, upfront pricing for backflow prevention service, backflow preventer installation, or backflow preventer repair before we begin. Our goal is to make it easy to understand what you need, why you need it, and how we will take care of it.

Complete Protection With Testing, Repair, and Installation

A single appointment can include backflow testing, minor backflow preventer repair, and recommendations for future upgrades. If your current device is outdated or no longer working correctly, we can provide backflow preventer installation for a new, properly sized unit. Our backflow prevention service in San Diego is designed to keep your system safe now and easier to maintain in the future, with testing schedules and reminders available through our ongoing service plans.

Areas We Serve for Backflow Prevention Service in San Diego

Our plumbing specialists proudly serve homeowners and businesses throughout San Diego and San Diego County with professional backflow prevention service, annual backflow testing, and complete support for backflow preventer installation and backflow preventer repair.

San Diego Neighborhoods:

North Park, South Park, University Heights, Normal Heights, Mission Valley, Hillcrest, Clairemont, Kearny Mesa, Linda Vista, Serra Mesa, Pacific Beach, and nearby communities. Nearby Areas: La Mesa, Chula Vista, National City, El Cajon, Santee, and additional cities across San Diego County.

ZIP Codes:

92101, 92102, 92103, 92104, 92108, 92109, 92111, 92116, and surrounding zones.

Why Backflow Prevention Service in San Diego Is Different

Commercial properties may have irrigation systems, fire protection connections, equipment supply lines, or other cross-connections that require backflow protection. Pressure changes within the water system can create conditions where water flows in the wrong direction, which is why properly installed and maintained backflow prevention assemblies are important for commercial plumbing systems.

Schedule Commercial Backflow Service

Call our team to discuss your backflow testing, repair, replacement, installation, or compliance-related plumbing needs and schedule the appropriate service for your commercial property.

1901 First Ave. Ste 217-H, San Diego, CA 92101

Hours of Operation

Open 24 Hours, 7 Days a Week