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

Main sewer line
repair & replacement.

A failing main sewer line is one of the more stressful things a homeowner can face, and we are here to make it as painless as possible. Whether it is age, root intrusion, ground shift, or a collapse, we repair or replace it with the lowest-impact method that solves the problem for good, and we use trenchless options to protect your yard wherever the pipe condition allows.

Repair vs replace

When to fix vs replace the whole line.

Spot repair usually makes sense when there is one defect (roots at one joint, a single crack) and the rest of the line is in good condition.

Full replacement usually makes sense when there are defects all along the line, the pipe is collapsed or badly bellied, or it keeps failing despite repairs. Older clay lines are the most common candidates.

We always camera-scope before recommending replacement. Our video pipe inspection shows you exactly what is going on inside the line, so you can decide with full confidence. Sometimes a spot repair is the right answer; sometimes the line is at the end of its life and a trenchless replacement avoids the cycle of repeat spot repairs. Trenchless options include pipe lining and pipe bursting; when the line can't take either (a badly bellied line, for example), we replace it the traditional way.

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 →
DN
David Nunez
★★★★★ Apr 2026
GOOGLE

They made a appt. And tech was on time for a estimate. Appreciate the effort will hold on to their # first call.Second call....main sewer 😬 John answered our call and sent out the A-team. Freddie his main worker explained what needed to be done and did not…

MC
Mandy Carbajal
★★★★★ May 2025
GOOGLE

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…

Common Questions

Frequently asked questions.

How much does sewer line service 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. Prefer to keep your savings right where they are? You can spread the cost of a sewer line job over monthly payments, and checking your options has no impact on your credit score.
Are you licensed for sewer line service 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 sewer line service?
We provide sewer line service 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.

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