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Top-Rated Sewer main install, replace or repairers in Monrovia - Updated Nov 2026

Avatar for All Season Rooter And Plumbing, Inc.
All Season Rooter And Plumbing, Inc.
4.8(
103
)
Sewer Main - Install, Replace or Repair

Serving Monrovia, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"Answered my request right away and came out fix sewer back up.Alvin was able to diagnose problem quickly .Alvin and his partner were very professional & efficient . I highly recommend them and will use them again ."
Drain Cleaning
Leak Repairs
Sewer Cleaning
Serivce Van
Response time2 hrs
Response rate94%
23 neighbors recently requested a quote
Avatar for The Sewer Brothers Plumbing and Rooter Inc
The Sewer Brothers Plumbing and Rooter Inc
4.9(
38
)
Sewer Main - Install, Replace or Repair

Serving Monrovia, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Excellent service with the sewer repair and replacement. We decided to hire them to replace whole house pipes on our old home. Did the job at a reasonable price, just like the first job. Had one small leak problem under sink in guest bath. Texted at 1:00AM, he came at 10:00AM the same day. He fixed the leak at no cost. We have had no problems since. Now, that's what I call service. Also they are very personable and respectful young men. Thanks, Sewer Brothers!"
SEWER CAMERA EQUIPMENT
3" CAST IRON MAIN LINE BEFORE DESCALING
3" CAST IRON MAIN LINE AFTER JETTING AND DESC
3" CAST IRON PIPE AFTER LINER
NEW DRAIN PIPES UNDER THE HOUSE

+36

Response time2 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for HARMONY ELECTRIC PLUMBING & AIR INC
HARMONY ELECTRIC PLUMBING & AIR INC
4.8(
36
)
Sewer Main - Install, Replace or Repair

Serving Monrovia, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"They called us quickly and got a plumber out within a few days. Super thorough - tested all pipes and water sources to diagnose the problem. They were able to perform maintenance on most bathrooms the same day and improve the water temperature in our showers. Gave helpful, non-biased advice on potential further plumbing improvements. We will likely call this company again for any and all future plumbing needs."
768 neighbors recently requested a quote
Recommended by38%of homeowners
Avatar for Alpine Plumbing, Heating, and Air
Alpine Plumbing, Heating, and Air
4.7(
37
)
Sewer Main - Install, Replace or Repair

Serving Monrovia, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"I am very pleased with the quality of work Matthew, Shawn and their staff did with the Main Sewer check valve replacement and the Main Shutoff Valve replacement. The Main Shutoff valve replacement and the Hydro Jet cleaning of the Main Sewer line was not part of the initial job to be done. Matthew authorized the added job without additional charge to the original quote I was given. Matthew and Shawn has great knowledge and answered all my questions to my satisfaction. They gave me a fair price, they were very professional, thorough and polite, from beginning to end. Clear explanation of needed repairs, sound advice without any inkling of price gouging or questionable add-on expenses whatsoever. Respectable and conscientious, could not be happier. Even very neat and clean. The people that worked with Matthew and Shawn were also very professional and very thorough. I will recommend them to my friends who need a plumber and call them again when the time comes I need a plumber. I will rate the work they did with A+ and Excellent!!!"
Plumbing - Drain Cleaning Project
Sewer cleaned of roots and ready for lining
Prepping pipe for lining by removing massive roots
Mixing resin for liners, this resin gardens to create a solid pipe
Sewer robot in the pipe

+26

Response time9 hrs
9 neighbors recently requested a quote
Recommended by67%of homeowners
Avatar for Ace’s Plumbing Services
Ace’s Plumbing Services
5.0(
20
)
Sewer Main - Install, Replace or Repair

Serving Monrovia, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"We’ve used this plumbing company multiple times across several properties and have always had a great experience. Extremely knowledgeable, professional, and quick to respond whenever we need service. It’s hard to find honest plumbers with real experience, and these guys definitely know what they’re doing. Every job has been handled efficiently and with great attention to detail. Communication is always excellent, pricing is fair, and they consistently deliver quality work. We truly appreciate having someone reliable we can count on for our properties. Highly recommend to anyone looking for a dependable and experienced plumber. Five stars all the way."
Water Heater Installation
Valve/Regulator
Tankless Heater
Copper Spot Repair
Automatic Shutoff

+2

Avatar for Sweetwater Plumbing Industries, Inc.
Sweetwater Plumbing Industries, Inc.
4.0(
620
)
Sewer Main - Install, Replace or Repair

Serving Monrovia, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Project involved major repair of main sewer line, requiring installation of clean-out, jetting, and re-lining. Company seems very well equipped to tackle any size job. The 7 workers that were involved at various times all seemed to be well trained. Michael I, the lead plumber, is very intelligent, knowledgeable, and good to work with. Very nice people all around."
Water Heater Installation
Plumbing Services
Water Heater
Plumbing Services
On Time Service

+36

Response time3 hrs
20 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Renowned Plumbing & Rooter, Inc.
Renowned Plumbing & Rooter, Inc.
4.8(
14
)
Sewer Main - Install, Replace or Repair

Serving Monrovia, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I absolutely love that they work within your schedule to come out to perform services requested. I contacted their office late at night and they were able to schedule Chris the manager the next morning to provide me with a free second opinion. I had another local company that wanted to gouge me for everything that I had. This prompted me ti contact Renowned. After Chris did his free diagnosis, he went to me a reassured me that my issue was not as bad. I went ahead and had Chris and his team repair the section of sewer that only needed to be replaced. The entire sewer line did not need replacement like the other company stated it did.. Itâ s very hard to find trustworthy plumbers these days. Im so blessed I found mine."
Response time50 mins
Recommended by83%of homeowners
Avatar for Complete Plumbing & Rooter
Complete Plumbing & Rooter
4.9(
30
)
Sewer Main - Install, Replace or Repair

Serving Monrovia, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Credit card accepted

"Contacted Complete to repair a water leak on my water main. They came out Saturday morning gave me an estimate and scheduled the repair. I was called and given an eta for the arrival of the technician. Raymond arrived just as scheduled. He took great care to complete the repair without destroying the yard. And the repair price was excellent. I would definitely recommend Complete Plumbing and will be using them for my Plumbing needs. They are 5 star."
Response time9 hrs
11 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for Complete Plumbing & Rooter
Complete Plumbing & Rooter
4.9(
30
)
Sewer Main - Install, Replace or Repair

Serving Monrovia, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

Logo
Recommended by57%of homeowners
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FAQs for sewer main install, replace or repair projects in Monrovia, CA

Most trenchless sewer line replacements can be completed within one to three days, though this varies based on your situation. Simple repairs on accessible lines might be finished in hours, while complex systems or challenging soil conditions could extend the timeline. The reduced excavation requirements result in faster completion compared to traditional trenching methods.

Trenchless pipe lining may reduce the interior diameter of your pipes, which could affect flow capacity in already narrow lines. This method also requires the existing pipe to maintain sufficient structural integrity to support the new liner. Severely collapsed sections, major joint separations, or completely misaligned pipes might not be suitable candidates for lining and could require alternative approaches.

Trenchless sewer pipe liners are rated to last up to 50 years when properly installed and maintained. Actual longevity depends on installation quality, usage patterns, and environmental factors like soil movement or tree root intrusion. Regular maintenance and avoiding problematic disposal practices (like flushing non-biodegradable items) can help maximize your system's operational lifespan.

Trenchless technology availability varies by region, with greater accessibility in metropolitan and suburban areas where specialized contractors operate. Some rural locations may have limited access to trenchless equipment and expertise. Local regulations and soil conditions also influence availability. A professional assessment of your property and local contractor options will determine if trenchless methods are feasible for your specific location.

Professional video inspection provides the most reliable assessment of whether your sewer issues suit trenchless repair. Generally, pipes with moderate damage, like small cracks, minor leaks, or partial blockages, respond well to trenchless techniques. Completely collapsed sections, severe misalignments, or extensive structural failures might require traditional excavation. Consulting with contractors who offer both methods ensures you receive unbiased recommendations.

Quality trenchless sewer replacement often includes a workmanship guarantee from the contractor. The specific terms vary by company and region, but many professionals stand behind their installation for at least one year. Material warranties may extend longer, depending on the pipe products used. Always request written warranty information before hiring, and understand exactly what's covered and what might void your protection.

The Monrovia, CA homeowners’ guide to sewer main install, replace or repairs

From average costs to expert advice, get all the answers you need to get your job done.