Plumber in Ontario, California

From historic downtown to the newest development, Ontario has been inside Ray May Plumbing's service territory since 1961 — it's one of the cities we're in almost daily.

Plumbing in Ontario

Ontario spans a century of construction: craftsman-era homes near Euclid Avenue with original piping, mid-century neighborhoods, and brand-new slab-built homes on the city's growing edges. That mix produces everything from galvanized-pipe repipes to slab leak detection to warranty-age water heater swaps — and our decades here mean we've seen each vintage of Ontario plumbing many times over.

Ontario's commercial and industrial base — warehouses, logistics, restaurants, offices near the airport — is also a major part of our commercial division's work. Accurate quotes, fast turnarounds, and handicap-accessible fixture installation to keep buildings up to occupancy code.

Every service, locally

Everything we do is available in Ontario: leak and slab leak detection, water heater repair and replacement, drain and sewer service, repiping and gas lines, commercial plumbing, and complete kitchen and bath remodeling — backed by our Upland showroom and parts department.

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