Sweetwater Plumbing is a licensed, family-owned plumbing contractor based in Montclair, California, serving the Inland Empire since 2010.
See all 24 local cities we serve →
When something goes wrong with your plumbing, you want someone local you can trust to treat your home with care. That is exactly what we do, for homes and businesses across the Inland Empire. You get clear options explained in plain language, quality workmanship, and a friendly local team that answers the phone 24 hours a day, 7 days a week.
Homes & Apartments
From small kitchen leaks to whole-home repipes, our licensed crew handles residential plumbing across Montclair, Ontario, Upland, Rancho Cucamonga, and the rest of our 24 cities.
Businesses & Properties
Restaurants, offices, retail, and multi-tenant properties across the Inland Empire. Compliance work and dependable service, with after-hours scheduling.
Modernize & Maintain
Repipes in copper or PEX, water efficiency upgrades, system evaluations, and preventive maintenance for homes and commercial properties throughout the Inland Empire.
Drains, Sewers & Sumps
Camera inspection, hydrojetting, trenchless sewer repair, and sump pump service for homes and businesses from Montclair to Riverside.
Know what to do before the water's running across your kitchen floor. Free downloadable guides covering emergencies, shut-off valves, seasonal maintenance, and prevention, written specifically for Inland Empire homes.
Browse All Guides →Thank you for trusting us with the work in your home. I hope our team treats you with the kindness you deserve, because that’s what I expect from everyone who wears the Sweetwater name. If we fall short in any way, please call me personally, anytime, day or night, at (909) 247-6791, and I’ll make it right.
John Howe · The Kind Plumber
We're not a franchise. We're your neighbors. We take the time to explain your options, treat your home with respect, and deliver long-lasting solutions.
We're an A.O. Smith Authorized Service Contractor: service, repair, warranty and replacement from a water heater expert. We're licensed in California (CSLB #889182). Verify our A.O. Smith listing →
LEARN MORE ABOUT USFrom a dripping faucet to a full repipe or a new sewer line, we handle it.
We won't sell you what you don't need. Just straightforward advice.
We use quality materials and take care with every detail.
We treat your home or business like it's our own.
Sweetwater Plumbing is a licensed, family-owned plumbing contractor based in Montclair, California. Founded in 2010, the company provides residential and commercial plumbing services across the Inland Empire region of Southern California. Sweetwater Plumbing holds California Contractors State License Board license number 889182 with a C-36 Plumbing Contractor classification and carries two million dollars in general liability insurance.
Looking for a licensed plumber near you in the Inland Empire? Sweetwater Plumbing serves 24 cities across the region. Choose your city below:
Our home base at 4667 Holt Blvd. Service in every Montclair neighborhood.
Residential and commercial plumbing across Ontario: restaurants, light industrial, and multi-tenant properties near Ontario Mills and Ontario Ranch.
Family-owned plumbing service in Upland, from older homes near downtown to newer developments north of the 210.
Water heaters, slab leaks, water and gas repiping, and sewer repair for Rancho Cucamonga, including the Etiwanda, Alta Loma, and Victoria Gardens areas.
Trusted plumber for Chino residents: leak detection, slab leaks, and full-service repairs across Chino and the surrounding flatlands.
Plumbing service for Chino Hills homes: leak detection, repipes, and tankless water heater installation.
Residential and commercial plumbing in Pomona, covering older neighborhoods, multi-tenant rentals, and Cal Poly Pomona area properties.
Licensed plumbing in Claremont and the Claremont Village: leak detection in older Craftsman homes and full-service repairs.
Plumbing service for La Verne: repipes, drain cleaning, and water heater service from foothill homes to flatland subdivisions.
San Dimas plumbing service covering Via Verde, Lone Hill, and surrounding neighborhoods. Phones answered 24 hours, every day.
Plumbing service for Diamond Bar homes: slab leaks, tankless installation, and full repipes for older properties.
Licensed plumber serving Fontana: commercial and residential, from south Fontana up to the Sierra Lakes communities in the north.
Plumbing service for Rialto. Repipes in the older tracts, salt-free water softener installs, and water heater service across residential and commercial properties.
Trusted plumber in Colton: repipes for older homes near the 10/215 interchange and full-service plumbing for businesses.
San Bernardino plumbing service covering downtown, the foothill neighborhoods, and the Highland/Redlands border areas.
Plumbing service for Highland. Slab leaks, repipes, and emergency response for the East Highlands area.
Licensed plumber for Redlands: historic homes near downtown and the University of Redlands, plus newer subdivisions north of the 10.
Plumbing service for Loma Linda: residential repairs and commercial work near the medical center and surrounding professional district.
Trusted plumber for Grand Terrace. Aging copper leaks, repipes, and slab leak repair for homes across the city.
Plumbing service across Riverside: Magnolia, Arlington, Canyon Crest, and the historic downtown. Residential and commercial.
Licensed plumbing in Corona: Sierra del Oro, South Corona, and nearby Coronita. Tankless installs, slab leaks, and full repipes.
Plumbing service for Norco horse-property homes. Septic tank pumping and full-service residential plumbing.
Plumbing service for Eastvale: newer subdivisions, water heaters and leak repair, plus light commercial work along the I-15 corridor.
Plumbing service for Mira Loma: residential repipes, water heater work, and emergency response.
Sweetwater Plumbing serves 24 cities across the Inland Empire from its base in Montclair, California. Primary service cities include Montclair, Ontario, Upland, Rancho Cucamonga, Chino, Chino Hills, Pomona, Claremont, Fontana, and Riverside. Those 24 cities span San Bernardino, Riverside and eastern Los Angeles Counties.
Yes. Sweetwater Plumbing is fully licensed by the California Contractors State License Board (CSLB #889182) as a C-36 Plumbing Contractor. We carry $2 million in general liability insurance and are fully bonded. License and insurance certificates are available on request.
Sweetwater Plumbing is a family-owned business founded in 2010. We have served Inland Empire homeowners and businesses since then, with the same family ownership and the same commitment to honest, quality workmanship.
Yes. Every job is quoted before any work begins, and the price you are quoted is the price you pay. You approve your option in writing first: no surprise upsells, no bait-and-switch. Our pricing is flat-rate, so you know exactly what to expect.
We handle almost every type of plumbing job: residential and commercial repairs, water heaters (tank and tankless), drain cleaning, sewer line inspection and repair, trenchless sewer replacement, slab leak detection, whole-home repipes in copper or PEX, gas line installation, fixture installation, hydrojetting, sump pumps, and backflow prevention.
Call (909) 312-4516 to schedule, or text (909) 247-6791. Phones are answered 24 hours a day, every day. Texts are answered 8 a.m. to 8 p.m., 7 days a week.
Sweetwater Plumbing is a licensed, family-owned plumbing contractor based in Montclair, California. The company was founded in 2010 and serves residential and commercial customers throughout the Inland Empire, including the cities of Montclair, Ontario, Upland, Rancho Cucamonga, Chino, Chino Hills, Pomona, Claremont, Fontana, and Riverside. Sweetwater Plumbing holds California CSLB license #889182 with a C-36 Plumbing Contractor classification.
Sweetwater Plumbing is headquartered in Montclair, California, in San Bernardino County. The company serves homes and businesses throughout the Inland Empire region of Southern California, covering San Bernardino, Riverside and eastern Los Angeles Counties.
Plumbing costs in the Inland Empire vary by the type of work required. Sweetwater Plumbing uses flat-rate pricing rather than hourly rates, meaning every job receives a fixed quote before work begins. The price quoted is the price paid, with options approved in writing first and without surprise charges or unexpected upsells. Our customers tell us our pricing is honest and fair. Call (909) 312-4516 or text (909) 247-6791, and a technician will come out, look at the problem and give you your options.
The latest work from our crews across the Inland Empire.
Sweetwater Plumbing is arguably the most professional contractors that I've ever had as a home owner in my 40 years of home ownership. My techs, Freddy and Angel were great, but the commitment to excellence starts and ends with John, the GM/Owner. I'll NEVER…
We are very pleased with the service we received. We have worked with Sweetwater before and will again for future needs. We have tried other companies and have been very disappointed with the quality and expense. Freddy was very friendly, clean and…
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!!
Sweetwater Plumbing is truly a gem in the industry. From start to finish, their team was professional, polite, and incredibly respectful of both my home and my time. What stood out most was their honesty — no overselling, no unnecessary recommendations, just…
