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Preferred Plumbing Solutions Inc.
“He was professional, polite, neat, and did a great job explaining what needed to be done to solve my problems.”
Best Drain Cleaning Services in Markham, ON
15 contractors listed · 9 in Markham · 10 open 24/7 · 12 open weekends · 14 rated 4.5+
Data verified October 21, 2026
Dima Plumbing
“He was polite professional and his pricing was lower than any of the other companies.”
Drain Relief Toronto
“Most importantly, he is a wonderful person who truly cares about his work.”
Megan-Drew Plumbing & Mechanical
“A return visit was needed for a minor adjustment, they came back the next business day.”
Markham Plumbing
“They were great to deal with in every respect and turned a highly stressful situation into a very pleasant one.”
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Enercare
“David Koles : Thank you so very much for your excellent n professional service n help!”
The 15 companies listed for Markham, 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.
Area overview: Markham, ON
9 of the 15 contractors we list are based in Markham; the other 6 serve Markham from towns including Scarborough (15 km), Pickering (15 km) and North York (17 km). The contractors on this page are rated from 4.1 to 5.0 across 21,289 reviews; 8 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (86%), responsiveness (81%) and quality (81%). The topics that come up most in reviews of the contractors on this page are "price", "efficient" and "knowledge". 10 are open around the clock; 12 are open on Saturdays and 11 on Sundays. The services the contractors on this page list most often on their websites are backwater valves (3), drain cleaning (2) and sump pumps (2). 4 show a licence on their websites. 10 have ten or more years of experience, the longest 20 years. 10 offer emergency call-outs; 1 offers financing or payment plans; 6 give free estimates; 2 are family- or locally-owned and 3 list coupons or special offers. 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.
What can I learn from these companies' websites?
A website is linked by all 15 listings for Markham. 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.
MP Master Plumbing INC
“Stellar job, efficient service-was able to make last minute accommodations for an emergency situation.”
Innovation Plumbing Inc.
“He didn't rush the service and also spent time explaining how the plumbing works in our new home.”
Elite Renovators Load Bearing Wall Removal
“Very thorough and really takes time to answer questions and address concerns.”
Prompt Plumbing
“Number 1 plumber we had emergency situation and called this guy, he came in no time and was very professional.”
Refined Home Services
“Completely thorough and super easy to communicate with which in brampton is hard to find.”
Caldwell Plumbing
“Got parts and worked quickly to change out the leaking valve, plus 4 other old valves, and install 2 in awkward place behind pedestal sink in powder room.”
Mersey Heating and Air Conditioning
“I like that they don't contract out and have their own staff to do the installs, i think their installation service --especially the experienced guys like Berlin and Nick are becoming hard to find in any type of contractor--super professional and their quality of installs was amazing-they really take the time to do things the right way, not just the fastest, and their younger employees like Shaf are learning in the best way.”
New Well Plumbing & Heating Ltd
“The thing that stood out was that Sam asked for a picture right away, which made me feel confident that he understood and could anticipate what was needed before he arrived onsite.”
Grizzly Plumbing and Heating Inc
“They responded to our call quickly, were very patient in explaining our issues to us - and the fix (a water heater replacement) was painless.”
Why these companies made our list
What customers say about contractors in Markham
- “Honest, professional, friendly, knowledgeable, good prices. I would recommend Drain Relief in a heartbeat.” — customer of Drain Relief Toronto
- “Doug and his crew are extremely professional, always available and do a great job.” — customer of Megan-Drew Plumbing & Mechanical
- “Friendly, polite and efficient. I think this is a fabulous company, have used their services many times and highly recommend them.” — customer of Preferred Plumbing Solutions Inc.
- “John is always a pleasure to work with and is very quick to respond, arrives on time and gets the job done.” — customer of Dima Plumbing
- “Bryan came over to our house within 24 hours and fixed the problems quickly and effectively.” — customer of Innovation Plumbing Inc.
Excerpts from public reviews of the contractors listed on this page.
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