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Welcome to Best Contractors
Your Plumbing, Drainage and Waterproofing Specialists

Drains & Sewers

We can handle any sewer drainage problem- from large sanitary systems to small residential isolated blockages. No clog is too tough for us.
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Wet Basement

BEST Plumbing and Drainage Contractors have been successfully waterproofing homes and commercial buildings for over 30 years.
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Plumbing problems can happen in any home or business, at any time. From clogged drains to faulty faucets.

Water Main

A broken water main is one of the worst nightmares for homeowners and businesses. A situation like this needs to be addressed quickly.
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Septic Systems

Many homeowners find themselves stuck between a rock and a hard place after realizing that they have a problem and require repairs.
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Jet Vac

Catch basins are installed on properties in order to collect rain water and prevent debris and contaminants from clogging the main system.

Who We Serve

Residential Plumbing
Plumbing, drainage and wet basement solutions for your home.
Commercial Contractor
You can trust the integrity of your establishment to our expert drainage specialist.
24hr Emergency Plumbing services
Have an emergency at your home or business? Call us! 519-438-6565

Providing service 24 hours a day, 365 days a year to clients in London and throughout Southwestern Ontario.

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At BEST Plumbing and Drainage Contractors, we feel it's important to help homeowners understand the role of the contractor and the various construction solutions available for each unique plumbing, wet basement repair and drainage issue. We are more than happy to consult with you and help navigate the process.

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Resource Center

Our Latest News Articles

Toilet Drainage Tips
Ten Things You Should Never Flush Down Your Toilet
It's easy to believe your toilet is the catch all for any sort of waste you want to dispose of, but there are actually quite a few things that your toilet should never ...
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24/7 Plumber
When Should a London Ontario Plumber Come to the Rescue?
Aside from offering a few very funny videos of cats, the Internet is the world's greatest tool for the do-it-yourselfer. From drywall installation tips to gardening ...
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Septic System Repairs
Why You May Need London Septic System Repairs
Have you ever come home to the wonderful surprise of a sewage backup in your home? Perhaps you’ve stumbled upon a really wet and smelly spot in your yard?
[continue reading]
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Most Frequently Asked Questions

What should I do if my waterline lets go?
Turn off the main valve at the meter and call us right away.
What does it mean when water comes up through my floor drain?
Usually this means the main sewer or branch line is backed up and needs to be cleared.
Is it possible to know what is causing my sewer problem?
Yes. We can send our camera down to tell you the actual cause and location of your problem.
Should I repair or replace my sewer?
You could set up a maintenance program for regular cleaning or repair or replace the sewer to prevent further backups from occurring.
What is the white stuff on my walls in the basement?
The white substance on your walls is called efflorescence. This is the breakdown of the bonding agent used to hold your foundation together. The water that is penetrating the foundation is breaking the bonding agent down.
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Wet Basement Warranty

BEST Plumbing and Drainage Contractors, 1215190 Ontario Limited warrants that the basement will not leak in the area repaired for a period of 20 years, the first 10 years being transferable.

Sewer and Waterline repair or replacement

BEST Plumbing and Drainage Contractors, 1215190 Ontario Limited warrants that the sewer or waterline will be free from defects in the area repaired for a period of 20 years, the first 10 years being transferable.

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