“After another company couldn't find the issue, Terry Nelson Plumbing handled my slab leak detection and repair expertly, restoring peace of mind.”
Carlos V.Chino
VerifiedFast Irrigation Leak Detection in Ontario, handled by licensed local crews who understand San Bernardino County. Our team specializes in identifying leaks within your irrigation system to ensure your garden remains green and healthy while conserving water.
Licensed · Upfront options · Clean work areas · Written guarantees
These are our most frequently served ZIP codes. Nearby areas may also qualify—call if you do not see yours.
Chino · Eastvale · Montclair · Upland · Rancho Cucamonga · Jurupa Valley · Norco · Claremont · San Antonio Heights · Pomona · Chino Hills · Fontana
Chino · Rancho Cucamonga · Upland · Eastvale · Montclair · All California cities
“After another company couldn't find the issue, Terry Nelson Plumbing handled my slab leak detection and repair expertly, restoring peace of mind.”
Carlos V.Chino
Verified“A respectful crew handled under house leak detection near Rancho Cucamonga, and their work was clean and tidy.”
Chloe D.Ontario
Verified“The technician explained the wall leak detection procedures clearly and professionally, and the problem was resolved quickly.”
Derek M.Ontario
VerifiedA real dispatcher is available if your question is not answered here.
Call +18667598259 →Most Ontario calls are scheduled the same day, with 24/7 emergency response across San Bernardino County.
We quote a flat rate up front - typically in the range shown below - and you approve it before we begin.
Call now for fast, licensed leak detection anywhere in Ontario and San Bernardino County.