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    Verified french drain services reviews

Top-Rated French drain pros in Monrovia - Updated Nov 2026

Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Basement Drainage Channels - InstallDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+3 more

Serving Monrovia, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Ryan was perfectly on-time and was a plumbing scholar and a gentleman. We had a simple drain replacement under a new sink. Going to Western saved me at least another day of trying to figure out proper parts and doing the install myself, and it also saved my wife's ears from hearing my salty language."
Ruben installs a new drainage system under a customers home. Working in a crawl space is rough, but we do what is needed.
Backing up? Got roots? Blast those roots out with a Hydro Jetter! We use a wart hog nozzle that combines controlled rotation with a unique 8 jet cutting configuration optimized for removing roots. It’s better with a jetter! Call us! We got this! ??
Sewer Line Camera
No drain clog too big or small, Western Rooter covers them all!
Justin clearing a Kitchen sink back-up after the Memorial holiday.
HALO 5 whole house water filtration system.

+542

Response time12 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for All Season Rooter And Plumbing, Inc.
All Season Rooter And Plumbing, Inc.
4.8(
103
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera Locate

Serving Monrovia, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"Alvin was kind, honest and completed the work in a timely manner. He was able to diagnose the problem with my slow draining bathtub and poorly flushing toilet. He explained all the details needed to fix the problems. I highly recommend All Seasons Plumbing."
Drain Cleaning
Leak Repairs
Sewer Cleaning
Serivce Van
Response time2 hrs
Response rate94%
24 neighbors recently requested a quote
Avatar for Worth Construction
Worth Construction
5.0(
14
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business

Serving Monrovia, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I had a great experience with a drain cleaning service at my home in Los Alamitos. Our main line was backing up, and they were able to get someone out the same day. Our technician Brandon was professional, knowledgeable, and took the time to explain what was causing the blockage and how he was going to fix it. He thoroughly cleaned the drain and made sure everything was flowing perfectly before leaving. You can tell he really cares about doing the job right. I appreciate the honest service, fair pricing, and quick response. I would definitely recommend Brandon to anyone in Los Alamitos who needs reliable drain cleaning service!"
167 neighbors recently requested a quote
Avatar for So-Cal 1 Plumbing & Rooter
So-Cal 1 Plumbing & Rooter
5.0(
41
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateDrain Line Breakage - Camera Locate - For Business

Serving Monrovia, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Emergency services offered

"⭐️⭐️⭐️⭐️⭐️ Outstanding Service, Integrity, and Communication We had SoCal 1 Plumbing & Rooter handle a job on our exterior drain pipes, and the experience exceeded our expectations from start to finish. Not only was the work itself done extremely well, but what truly set this company apart was their professionalism, transparency, and genuine care for us as homeowners. Their executive manager, Shane, was personally on site to diagnose the issue, provide a in depth explanation, organize his crew, and ensure everything was handled correctly. He even returned to confirm that the job was completed properly. Having direct access to a manager who was knowledgeable, responsive, and willing to answer questions made a stressful situation feel completely manageable. I could call Shane at any point to bounce questions off of him, and every recommendation was explained thoroughly and honestly. They took the time to help us understand the severity of the problem, and exactly whats needed to fix"
repair
full house redrain
full house redrain
full house redrain
sewer repair

+27

Response time4 hrs
Response rate99%
1 neighbors recently requested a quote
Avatar for The Sewer Boyz Inc
The Sewer Boyz Inc
5.0(
21
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateDrain Clog or Blockage - Clear - For Business+1 more

Serving Monrovia, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I had a great experience with The Sewer Boyz when they came out to locate and repair my sewer line. Jonathan made the whole process smooth and reassuring from start to finish. He took the time to explain how he would locate the line, clearly identified the problem, and walked me through the repair options without any pressure. His knowledge and professionalism immediately gave me confidence. The repair was done efficiently and with great attention to detail, and he made sure everything was working perfectly before leaving. What really stood out was how respectful and personable Jonathan was. He treated my home with care, cleaned up thoroughly, and made sure I understood everything that was done. I truly appreciate his honesty and quality of work. Highly recommend this company. Definitely a 5-star experience!"
72 neighbors recently requested a quote
Avatar for Jetter Rooter
Jetter Rooter
5.0(
11
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving Monrovia, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I used Jetter Rooter for a camera inspection for my home and they found Roots in the main line sewer and they located it. I highly recommend them for your drains / Sewers locating. They are professional and on time schedule. Thank you guys from Jetter Rooter!!!"
JETTER ROOTER
JETTER ROOTER
JETTER ROOTER
JETTER ROOTER
JETTER ROOTER

+7

Response time2 hrs
Response rate92%
6 neighbors recently requested a quote
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French Drains FAQs, answered by experts

Knowing the signs can alert you to a clogged drain line. Clogs cause slow drainage or cause no drainage (if there’s a complete blockage). You may also notice foul odors, gurgling noises, water backing up in other appliances on the same line, or a poorly flushing toilet. If you experience any of these issues and think your line might be clogged, call a plumber.

Bleach isn’t likely to help unclog a sewer line. Bleach isn’t useful in this situation because it won’t dissolve the grime and debris in the clog. Instead, you want to use ingredients that will have a chemical reaction to clear out the buildup, like vinegar or salt and baking soda.

Boiling water helps unclog a drain, but usually only with a harder abrasive such as baking soda or vinegar. On its own, it isn’t the most effective tool. In addition, you shouldn’t use boiling water if you have PVC pipes, as it can soften or melt them. Use a plunger or enlist the help of a pro if you have plastic pipes.

There are several homemade solutions for clearing a clogged sink that don’t involve pouring harsh chemicals down your drain. Start by pouring hot (but not boiling) water down the drain. This can help dissolve and flush away grease and gunk. A splash of dish soap down the drain can also cut through fat and make it easier to clear the drain. For a more stubborn blockage, grab a plunger and give it a few firm pumps to dislodge the clog.

You may have a clogged gutter. Downspouts can also clog if your gutter collects too much debris. Hire a professional gutter cleaner, and if you still have problems, install a gutter guard (which prevents debris from entering your gutter system) and a downspout extension (which helps drain water further away from your foundation, so it doesn't pool near your house). Follow these tips to keep your gutter downspouts clean.

The Monrovia, CA homeowners’ guide to french drain services

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