Experienced Plumbers

since 1961, we have been leaders in both commercial and residential plumbing.

Kitchen & Bath Center

open to the public plumbing supply house containing products to turn your dreams into reality.

Prompt Services

full service plumbers to handle all of your plumbing, when you need it, 24 hours a day.

Pipe Problems

copper or galvanized, the Ray May team of Plumbers can repair or replace your pipes.

Residential Plumbing

providing residential plumbing services to the western Inland Empire installations and repairs

In-Line Video Cam

using an in-line video camera to inspect your pipes we can find your problem before we dig.


Let us handle all of your plumbing: bathrooms, kitchens, repiping and more.

Video Inspection

Our plumber looks inside the pipe (2" - 12" dia. up to 600' length) and finds the obstruction.

Hydro Jetting

Clear your pipes from debris and blockages.

Slab Leak Detection

Detect leaks inside, outside, and under the concrete without unnecessary demolition.

Tenant Improvements

We work with owners, property management companies and contractors.

Major Commercial & Industrial Plumbing

We have the knowledge, experience and plumbers to get even the biggest plumbing jobs done.

Gas, Water, Sewer Lines

We can plumb any type of lines.

ADA Compliant Plumbing

Need to meet ADA requirements? We have the supplies in stock.

Custom Baths and Kitchens

With Ray May Plumbing we make your dreams of a luxurious bathroom, shower or kitchen a reality.

Trustworthy Service

Insured and bonded with no claims against us since 1961.

Treat Customers As Family

We go out of our way to make all of our clients as family.

Plumbing Contractor for the Inland Empire and Los Angeles County

Providing Plumbing Services Since 1961

Ray May Plumbing, located in Montclair CA, is a family owned and operated plumbing company that has been meeting the residential and commercial plumbing needs of the local community since 1961. Your Ray May local plumber is fully licensed and insured.
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water meter

Leak & Slab Leak Detection

Leak detection, gas line leaks, and underground leaks using electronic and radio leak detection equipment without unnecessary digging or demolition.
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water faucet

Unclog and Clear Pipes

If your pipes are backing up or draining slow, we can unclog or clear your pipes. Our root cutting and hydro jetting tools allow us to clear your pipes without unnecessary demolition.
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broken water pipe

Repiping Services

Repiping is no problem for Ray May Plumbing, residential or commercial, copper or galvanized we have the experienced plumbers and are your best choice.
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No Commission Service Plumbers

Unlike many, Ray May Plumbers do not receive any commission for any of the work or materials that are sold when they are on a plumbing job.