If you are a homeowner or business owner in Montclair, we would be glad to help and to treat your home or business like our own. We answer the phone 24/7 at (909) 312-4516. Montclair is our home base: our office is at 4667 Holt Blvd. The 91763 ZIP code has a mix of postwar tract homes and newer builds near Montclair Place. A common call we get in older homes is falling water pressure from a corroded galvanized supply line.
Sweetwater Plumbing is a licensed, family-owned plumber (CSLB #889182) serving Montclair and the Inland Empire, rated 4.8 stars across 588+ reviews. We take urgent calls in Montclair 24/7, with same-day service for most non-urgent jobs booked before noon. Most of the city gets its water from the Monte Vista Water District. Call (909) 312-4516 24/7.
From a slow-draining sink to a slab leak under the foundation, and from full repipes to gas line installations, we handle nearly every part of a residential or commercial plumbing system in Montclair. And when something can’t wait, we offer 24/7 emergency plumbing service in Montclair, too.
North Montclair, South Montclair, Montclair Place area, Holt Boulevard corridor.
91763
Don't see your ZIP listed? Call us at (909) 312-4516. We likely cover your area.
Montclair is mostly 1950s-1970s tract homes, many now 60-plus years old, and that postwar stock decides what we see most.
Montclair is our home base, and we serve every part of the city.
CA CSLB License #889182 · C-36 Plumbing Contractor · $2M general liability · Bonded · San Bernardino County coverage. Verify our license at the CA Contractors State License Board.
What we see in each part of Montclair:
Mostly 1950s-1970s tract homes; the older ones often still have original galvanized supply lines and are common repipe candidates.
Older 1950s tract with cast-iron drain lines we often replace or line in place.
Mix of older tract and newer multi-family: apartments and condos around the mall.
Commercial-residential mix. We service restaurants, retail, and the homes behind them.
Montclair was citrus groves until after World War II, when the old Monte Vista tract (the city incorporated as Monte Vista in 1956, renamed Montclair in 1958) filled in with modest single-story ranch-style and mid-century tract homes. That postwar core, now 60-70 years old, is the bulk of the housing stock, which is why we see so much aging galvanized supply pipe and cast-iron drain line here. Newer infill and townhomes near Montclair Place (the mall, opened 1968) tend to have copper or PEX and modern ABS drains.
Most of Montclair is served by the Monte Vista Water District, headquartered right here in town, while a portion of the city falls inside Golden State Water Company's Claremont service area. Both deliver hard Inland Empire groundwater, so scale buildup in water heaters and on fixtures is the norm. Knowing which provider serves your street matters for hardness and backflow requirements.
Find your local water department in our Inland Empire directory →
Family-owned and based right here in Montclair since 2010. Our techs know Montclair well.
Montclair's housing is a mix of 1950s-1970s tract homes and newer construction near the mall, so we arrive knowing what to look for and ready to diagnose what isn't typical.
With Monte Vista Water District, we know the backflow testing schedule and the paperwork the district requires. We test backflow devices on the district's schedule and file the results with the district for you.
In Montclair specifically, the most common calls we get are for galvanized supply line failures in homes built before 1970 and cast-iron drain line corrosion in the older South Montclair neighborhoods. But the full range of work we do in Montclair includes:
Active leaks, no water, and sewer backups. Dispatched to Montclair 24/7.
Tank, tankless, gas, electric, hybrid. As an A.O. Smith Authorized Service Contractor, we install and service the right heater for your home.
Slab leaks are common in Montclair's 1950s-1970s homes, where the original water lines run under the slab. Electronic and acoustic detection lets us repair the exact spot with minimal demolition.
For Montclair gas line needs, residential or commercial, we test pressure and check for leaks on every job.
In Montclair's older homes, the sewer laterals are often cast iron or clay, with root intrusion. Cable for blockages, hydrojet for grease and roots. Camera inspection on every main line.
Repiping is common where Montclair's older homes still have galvanized supply lines. We repipe in PEX or copper, phase the work and patch any drywall we open.
Cast-iron, clay and ABS sewer lines in Montclair. Trenchless pipe bursting and pipe lining when the line allows, which can save the yard and the driveway.
Annual testing & certification for Monte Vista Water District requirements: we file the paperwork directly with the district on your behalf. We also install and repair backflow preventers.
Restaurants, retail, multi-unit and office properties in Montclair. Flexible, after-hours scheduling around your operating hours.
Sweetwater Plumbing's service area extends across San Bernardino, Riverside and eastern Los Angeles counties.
Not on the list? Call us at (909) 312-4516. We serve 24 cities across the Inland Empire.
I had to have a new water heater. When I called Sweetwater Plumbing they sent a plumber right out. Freddy Lopez was outstanding and explained everything to me. Freddy was very professional at all times. I know that if I need a plumber in the future I will be…
Freddy Lopez and Anthony were absolutely incredible. I just purchased a home that was remodeled but came across issues with one of the bathrooms. I had Roto rooter come out who couldn’t fix the issue. I found Sweetwater on Google which had great reviews…
I would like to recognize Freddy Lopez for the outstanding service and professionalism he provided. Freddy demonstrated excellent communication, attention to detail, and a strong commitment to customer satisfaction throughout the entire process. He was…
