Serving Montclair & the Inland Empire
Licensed & Insured Honest. Reliable. Local.
Sweetwater Plumbing 💬 Text us ☎ (909) 312-4516

Leak in your business?
We minimize downtime.

Sweetwater Plumbing finds and repairs slab leaks, supply line leaks and fixture leaks in restaurants, retail stores, offices, and multi-tenant buildings in Montclair and across the Inland Empire, 24/7. A commercial leak isn't just a plumbing problem; it's a business problem. Lost retail hours, unhappy tenants, soaked inventory, insurance claims. We respond fast, can schedule repair work after hours so you stay open, document everything for your insurance carrier, and coordinate with property managers and adjusters.

Commercial leak workflow

Stop the leak. Then everything else.

  1. Stop the active leak, typically by isolating the affected zone (not the whole building) so other tenants and operations can continue
  2. Document with photos and notes for your insurance carrier
  3. Locate the source with electronic and acoustic detection, thermal imaging or tracer dye if it's not visible
  4. Give you the repair options in writing, with a flat-rate price for each
  5. Make the repair you approve
  6. Coordinate with restoration (drying and contents removal) if water damage is significant
Service Area

Serving 24 cities across the Inland Empire.

Chino · Chino Hills · Claremont · Colton · Corona · Diamond Bar · Eastvale · Fontana · Grand Terrace · Highland · La Verne · Loma Linda · Mira Loma · Montclair · Norco · Ontario · Pomona · Rancho Cucamonga · Redlands · Rialto · Riverside · San Bernardino · San Dimas · Upland

What customers say

Real reviews from real customers.

★★★★★4.8 / 5 average
· View all 588+ Google reviews →
AA
Amber Adams
★★★★★ Mar 2025
GOOGLE

Can't say enough good things about Sweetwater Plumbing. They've serviced our drains at our car wash twice now. Their employees are all very friendly, knowledgeable and efficient. Not only were they on time but they were early! The owner, John, couldn't be…

KG
Kate Goodwin
★★★★★ Sep 2026
GOOGLE

Sweetwater provides prompt processional service in a welcomed friendly manner. They remember who you are and it’s refreshing. Freddie and Dave were great! Smart guys who knew their skills. Thank you everyone!!

Common Questions

Frequently asked questions.

How much does commercial leak repair cost in the Inland Empire?
We look at the job first, then give you your options in writing before any work begins, each with one flat-rate price. The price you approve is the price you pay. Our customers tell us our pricing is honest and fair.
Are you licensed for commercial leak repair in California?
Yes. Sweetwater Plumbing is a licensed C-36 Plumbing Contractor (California CSLB #889182), fully bonded with $2M general liability insurance.
Where do you offer commercial leak repair?
We provide commercial leak repair throughout the Inland Empire, including Montclair, Ontario, Upland, Rancho Cucamonga, Chino, Chino Hills, Pomona, Claremont, Fontana, Riverside, and 14 other cities. Call (909) 312-4516 to confirm coverage.

Related Services

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