15+
Years Local Trade
We started A1 Plumbing in 2016 out of a single truck and a garage on the east side of Covina, after a decade of working commercial service calls for other shops. The reason was simple: too many Covina homeowners were getting quoted one price and charged another. So we built the company around flat-rate pricing, a real arrival window, and a technician who walks you through the repair before touching a pipe. That is what about plumbing services Covina CA should mean, and it is what we have done since day one.
Ten years later we run multiple service trucks out of Covina and cover the whole San Gabriel Valley. Our work splits roughly 40 percent drain and sewer, 35 percent water heaters and repipes, and the rest leak detection, gas lines, and water filtration. We serve Charter Oak, South Hills, the downtown blocks near Citrus Avenue, and the older ranch homes off Arrow Highway, plus the 91722, 91723, and 91724 ZIP codes. If you need a Covina plumbing company that still picks up on the first ring, that is us.
3,200+
Jobs Completed
4.9★
Google Rating
24/7
Emergency Line
Our mission is to leave every Covina home with working plumbing and a straight answer about what it cost. We do not upsell a repipe when a $12 pipe fitting and a SharkBite coupling will hold. When a slab leak shows up under a hallway in South Hills, we locate it with acoustic and thermal gear, show you the reading, and give you the repair options side by side. A local plumber Covina homeowners call back for the next job is the only growth plan we have ever used.
Four rules run every call we take in Covina, from a 2 a.m. burst pipe to a scheduled tankless swap. They are not slogans. They are what our technicians get held to on the job.
01
Every repair we make meets the Uniform Plumbing Code and California Contractor License (C-36 Plumbing) standards, and we pull permits when the job requires one. That means copper pipe and PEX tubing are sized and supported correctly, gas lines are pressure-tested before we close a wall, and your water heater gets a proper expansion tank and anode rod. If an inspector walks the job, it passes.
02
We give you a two-hour arrival window and call when the truck is 20 minutes out. If a sewer line backup in Charter Oak has you standing in water, we treat it as an emergency and roll a truck the same day, usually within 90 minutes. No four-hour windows, no waiting around all afternoon.
03
You get the price before we open a toolbox. A drain cleaning runs $180 to $450 depending on access and buildup, and a standard 40-gallon water heater swap runs $1,400 to $2,200 installed in 2026. If we find something else while we are in there, we stop and show you before adding a dollar to the ticket.
04
We would rather spend an extra hour doing the job right than come back twice. That means hydro jetting a root-intruded line instead of running a drain snake and calling it done, and replacing a corroded section of cast iron pipe instead of banding it. Our technicians carry pipe camera inspection gear on every truck so we can prove what is actually happening inside your line.
Our team is nine people: six service technicians, two installers, and one dispatcher who has lived in Covina her whole life and knows which streets flood first when a storm rolls through. Every technician is EPA Lead-Safe Certified, and two carry Backflow Prevention Certification for commercial and irrigation work. Between us we have more than 60 years in the trade, and we train on new gear every quarter, from press tools and PEX crimping tools to the latest leak detection equipment. We are not a franchise. The person who answers your call is in Covina, and the technician at your door is a W-2 employee, not a subcontractor. That is why we can stand behind the workmanship on a repipe or a Navien tankless install.
10+
Years in business
Insured
Licensed & bonded
Licensed & Insured
Local trade pros — references on request.
Water where it should not be? We run 24/7 emergency calls across Covina and Los Angeles County, with flat pricing before we start and a state-licensed plumber on every job. Call 626 687 0334 and we will get you sorted.
Reach us at 626 687 0334 any hour of the day. Our office answers from 7 a.m. to 7 p.m. on weekdays, and emergency dispatch runs 24/7 for leaks, backups, and gas calls. Tell us what is happening and we will give you a straight answer and a flat price before anyone heads your way.
Phone
626 687 0334Address
4715 N Vecino Dr, Covina, CA 91722
Hours
Mon–Fri: 7AM – 7PM
Sat: 8AM – 4PM
Sun: Emergency Only
24/7 Emergency Available
