L
Linda K.
Verified Customer
"Called ClearFlow at 11pm when our basement drain backed up. A technician was at our door within 90 minutes. Professional, clean, and fixed it completely. Couldn't recommend them more highly."
Posted on Google
Available 24/7 in London, ON
London's Most Trusted Plumbers — Available 24/7
Fast, reliable, and honest plumbing services for homes and businesses across London, Ontario. Licensed & insured since 2015.
Licensed & Insured
24/7 Emergency Service
500+ Happy Customers
What We Do
Featured Plumbing Services
From emergency leaks to full renovations, our licensed team handles it.
Why ClearFlow
Why London Homeowners Choose ClearFlow
Fast Response
We arrive within 2 hours for emergency calls, guaranteed.
Upfront Pricing
No hidden fees, no surprises. You approve the price before we start.
10+ Years Experience
Serving London, Ontario since 2015 with hundreds of satisfied customers.
Licensed & Insured
Fully licensed Ontario plumbers, completely insured for your peace of mind.
Reviews
What Our Customers Are Saying
4.9/5· 312 reviews
M
Mark T.
Verified Customer
"Had three different plumbers quote me on a water heater replacement. ClearFlow was the most transparent with pricing and did the best job. James explained everything clearly. Will use them for everything going forward."
Posted on Google
S
Sandra O.
Verified Customer
"Finally a plumber you can actually trust. Showed up on time, wore boot covers inside, gave me an exact price before starting and stuck to it. My kitchen sink has never drained better. Thank you ClearFlow!"
Posted on Google
Service Area
Proudly Serving London & Surrounding Areas
Based in London, Ontario — we cover the entire city and beyond, from Byron and Lambeth to Strathroy and St. Thomas.
London ONByronLambethWestmountOakridgeWhitehillsMasonvilleOld SouthWortley VillagePond MillsDorchesterStrathroySt. Thomas
See Full Service AreaNeed a plumber today?
Free quotes, upfront pricing, and 24/7 emergency response across London, Ontario.