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TRUSTED BY MONROVIA, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon389
    Verified drain cleaning services reviews

Top-Rated Drain cleaners in Monrovia - Updated Nov 2026

Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
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 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

"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%
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

"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!"
169 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
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Drain Cleaning FAQs, answered by experts

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.

You should flush your AC drain line once every three months to keep it clear of debris and buildup. Keeping your AC drain line clean prevents clogs, backups, mold growth, and extra wear on your AC unit. If you live in a humid area or have several furry pets, up your cleaning schedule to once a month.

Biodegradable drain cleaners use naturally derived ingredients, such as baking soda, vinegar, and boiling water, which bacteria and other microbes can break down. Unlike conventional cleaners that rely on corrosive bleach (sodium hydroxide), biodegradable options are gentler on fixtures and less harmful to the environment. Because they don't release harmful gasses, they are also safer to use, especially in households with children, and do not require the same safety precautions as bleach-based products.

If you've discovered a rather frightening buildup of brown and black gunk below your shower cover, you're not alone. The smelly sludge is often a collection of mildew and biofilm. Biofilm comes from the breakdown of soap scum, hair, skin cells, and bacteria that collects during shower time. It's quite common in a humid space and relatively easy to clean with a gentle DIY cleaning solution such as baking soda and vinegar.

You should not attempt to snake your sewer yourself. Accessing and snaking your sewer requires heavy-duty equipment, and while renting is possible, misusing it can damage your sewer main and leave you with very expensive repair costs, not to mention potential environmental issues and severe water damage. Accessing your sewer also exposes you to hazardous sewer gasses, and failing to seal the sewer properly after work can be very dangerous. It’s always best to hire a professional sewer cleaner near you to handle this type of work.

The Monrovia, CA homeowners’ guide to drain cleaning services

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