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24 contractors listed · 5 in Cornwall · 3 open 24/7 · 7 open weekends · 21 rated 4.5+
Data verified October 18, 2026
The 24 companies listed for Cornwall, ON clear blocked drains and sewer lines. Hours, jetting and camera work, and free estimate claims come from each company's own website. Ask whether the crew that arrives owns the camera, since that decides what you learn.
5 of the 24 contractors we list are based in Cornwall; the other 19 serve Cornwall from towns including Long Sault (8 km), Russell (55 km) and St Andrews West (11 km). 23 of the contractors on this page have a rating, from 4.1 to 5.0 across 1,620 reviews; 6 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (88%), quality (74%) and responsiveness (74%). The topics that come up most in reviews of the contractors on this page are "price" and "efficient". 3 are open around the clock; 7 are open on Saturdays and 4 on Sundays. 6 show a licence on their websites. Domain records put 5 websites of the contractors on this page at ten or more years old; the oldest dates from 2010. 4 offer emergency call-outs; 7 give free estimates; 5 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 19 of the contractors on this page; 15 publish a contact page and 17 list a public email. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
A website is linked by 19 of the 24 listings for Cornwall. Look for two things: whether they own a jetter and a camera or hire them in, and whether they do repairs as well as cleaning. A company that only cables will be back at the same line next year.
