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Best french drain pros near Monrovia, CA

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    Average homeowner rating
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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%
5 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

"Before we could connect a new clothes dryer, we needed to replace our old spring-loaded gas valve with updated shut-off valve. Also, needed new flex aluminum vent, rigid under house. Alvin at All Season responded quickly. He and his co-worker came out, checked work to be done, and got right on it! Alvin also recommended that we change out old drain stand pipe to 2" for the new clothes washer. So we had him do that, too. We asked Alvin to check our water heater settings. Then he noticed we needed flex tubes and water installed valve replaced, which should have been done when this water heater was installed. So Alvin took care of that for us. Alvin is very nice, professional and patient; a pleasure to work with."
Drain Cleaning
Leak Repairs
Sewer Cleaning
Serivce Van
Response time2 hrs
Response rate94%
23 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!"
169 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!"
73 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

Grease buildup, tree roots, and foreign objects often cause blockages. Regular maintenance prevents major issues.

Some experts estimate that descaling your cast iron pipes can extend their lifetime by upwards of 50 years, although there’s not a lot of research to prove it. But we do know that without proper maintenance, cast iron pipes can quickly rust—leading to more expensive issues like burst pipes or main line clogs.

Drain fly problems can go away on their own—but only if the insects find the environment inhospitable. Those with a minor infestation can simply flush their toilets and run their faucets more frequently to flush out the flies and larvae. Others will have to deep clean their drains and set up traps.

Pouring drain cleaner down a vent pipe isn’t recommended. First of all, unlike a clog in a sink or bath caused by such material as soap scum build-up, toothpaste, and hair, clogs in a vent pipe are likely the result of debris from trees or even an animal stuck in the pipe. Drain cleaners won’t be able to eat through this kind of material. The cleaner will only become clogged in the vent with the debris, causing even more problems.

French drains may fail when they become clogged with soil granules that slip through the pores of the landscaping fabric and through the holes in the pipe. 

Over time, this debris can build up inside the pipe and prevent water flow. To prevent this failure from happening, regularly flush out your French drain and keep debris away from the inlet grate.

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.