Ray May Plumbing serves the Inland Empire, Los Angeles, and Orange Counties with residential, commercial, and emergency plumbing — backed by three generations of experience and a fully stocked showroom in Upland.
From a dripping faucet to a full commercial repipe, one call covers it. These are the jobs we handle every day.
Burst pipe, flooded floor, no water at 2 AM — call and talk to a real technician. We'll walk you through shutting off the water before we even arrive.
Call now →Water or gas leaking under a slab gets more expensive by the hour. Over four decades of leak-detection experience and electronic locating equipment find it fast — and fix it with minimal digging.
Learn more →Repair, replacement, and honest advice on tank vs. tankless — including when tankless is the wrong choice for your home.
Learn more →Sewer stoppages, waste-line camera inspections, and line tracing. We diagnose with a camera first, so you pay to fix the actual problem.
Learn more →Accurate quotes and code-compliant work for commercial buildings — including ADA fixtures, comfort-height toilets, grab bars, and accessible showers.
Learn more →The Inland Empire's bathroom remodeling specialists since 1961. Design help in our showroom, expert craftsmanship in your home.
Learn more →Plumbing companies come and go. We've answered the phone in the same community for 65 years — long enough to have plumbed some of the same homes twice. You get licensed plumbers, honest estimates, no hidden costs, and work we stand behind.
Our service area runs from the mountains to the valleys — as far north as Mt. Baldy, south to Chino Hills, west to Covina and Glendora, east to Fontana, and everywhere in between.
Some mornings we're thawing a frozen pipe in Padua Hills; by afternoon we're running an icemaker line in Ontario. Different climates, same crew.
See All Service AreasReal neighbors, real jobs, in their own words.
"My toilet backed up, and my flooded bathroom floor was a mess! Ray May Plumbing delivered amazing service! I could have suffered more damage if Ray May didn't come as quickly as they did! They saved my home from near disaster."
Lisa D Glendora, CA"I recently had Ray May Plumbing remodel my whole bathroom. They did a fabulous job. Gary helped me pick out colors, styles, and finishes I liked and consulted with me for the design from beginning to end."
Rachel H Diamond Bar, CA
Our remodeled Upland showroom carries an extensive repair-parts inventory, and the people behind the counter are plumbers — not clerks. Bring in the broken part; we'll match it and tell you how to install it.
Open Monday–Friday, 8 AM–4 PM · 1231 W 9th St, Upland, CA 91786
Visit the ShowroomTell us what's going on and we'll get back to you fast. For emergencies, skip the form and call — we answer 24/7.
Service & Emergencies (24/7):
(909) 624-4509
Showroom & Parts:
(909) 624-9687
Office:
(909) 984-3760