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TRUSTED BY MONROVIA, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon858
    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

"Perfect! I called Western Rooter the AM my disposal went out. They were at the house the same day, at the time they stated they would arrive. The work was done efficiently and professionally and completed within an hour. I have called on Western Rooter for many years for various plumbing needs (clogged drains, replace water-heater, replace main water line, etc.) and have always had great, timely service at reasonable $$$."
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%
10 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%
22 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

"David came out after hours to clear a badly clogged drain for us, and we couldn?t be more grateful. We had water backing up and were really stressed, but he arrived quickly, was very professional, and explained everything clearly. He used hydro jetting to thoroughly clean the line, and you could immediately tell the difference ? the drain has been flowing perfectly ever since. What really stood out was his attitude and work ethic. Even though it was late, he took his time to do the job right and made sure everything was clean before leaving. Fair pricing, honest service, and top-notch work. Highly recommend David for any drain or sewer issues!"
171 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 Dynamite Plumbing
Dynamite Plumbing
4.7(
77
)
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 1999

Free estimates

Emergency services offered

"Bill was my Plumber; very Profesional, licensed, experienced, great communication skills, very knowledgeable, punctual, great coordination skills, very organized, dedicated Plumber, mechanically inclined, good problem solver, in good shape and very pleasant to work with. Thank you, Dynamite plumbing for hiring Bill. Great choice."
Testing
Connections
Trenchless Pipe Replacement
Clay sewer
Existing cleanout

+10

Response time10 hrs
Response rate87%
6 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
Avatar for Ace’s Plumbing Services
Ace’s Plumbing Services
5.0(
20
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+2 more

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

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French Drains FAQs, answered by experts

A clogged air gap can cause a dishwasher not to drain. There are, however, other potential issues that can lead to improper drainage. For example, if you have attached the air gap to a garbage disposal and forgotten to remove the knockout plug, wastewater may backflow into the dishwasher. Check that the air gap is installed properly, and then look for clogs in the air gap and dishwasher filters. 

The most common cause of a clogged sump pump is natural debris buildup. As water enters the sump pit, it can carry small pieces of debris that build up over time, or the debris can get caught in the filter. If you forget to cover the pit after cleaning the sump pump and pit, debris can also collect in the pit. Corrosion on the metal discharge pipe can also clog the pump. Additionally, if your pipes freeze, it can prevent water from draining properly and cause a clog.

In some cases, operating a snake can damage your drain and pipes. This depends on the overall condition of your pipes and how gently you operate the auger. For instance, older galvanized pipes covered in zinc are susceptible to scratches when using a drain snake. Additionally, it’s common for newbies to apply too much force when extending the snake, leading to scratches and related damage. You can also crack the porcelain with an electric auger if you’re snaking a toilet drain. If you’re using a manual snake or auger, the risk is minimal.

It is generally not recommended to pour hot or boiling water down a drain to unfreeze pipes due to significant risks. In some cases, the sudden temperature change can cause more ice buildup or produce steam, which increases pressure and could cause the pipe to burst, leading to costly damage and potential burn injuries. While hot water might help with a partially frozen drainpipe, it is unlikely to thaw a completely blocked water pipe further down the system. Additionally, boiling water can damage plastic pipes over time. Safer and more effective methods include using a space heater near the frozen section or applying hot towels directly to the pipe.

Yes, you can pour water down the toilet to help it flush. For each flush, you’ll need 1 to 2 gallons of water for newer toilets or 3 to 5 gallons of water for older toilets. Rather than dumping the entire bucket in all at once, pour the water in slowly for the best results. If you’re pouring water down the toilet to help it flush after a clog, only use 1 gallon of hot water.

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.