MW Contracting Corp
“After meeting with him and seeing his professionalism and knowledge on “how to remove a pool”, we felt very comfortable that this was THE contractor to hire.”
Best Swimming Pool Builders in Markham, ON
15 companies listed · 7 in Markham · 10 open weekends · 14 rated 4.5+ · 1 shows a licence
Data verified October 21, 2026
Leisure Pools
“Alex and his team installed a pool for us this summer and nothing but great things to say about them.”
Summertime Pool Services
“Her positive attitude, professionalism and her ability to walk me through a bad algae situation as well as filter malfunction was amazing!”
Bonavista Pools Limited
“No better firm in Toronto if you want to install a proper pool, great staff, excellent ownership...”
Golden Water Aquatics
“Very professional and solved all of the issues we had with the pool.”
Pool Boys Inc.
“Even after 3 years of installing, they still are readily available and offer great service!”
The 15 companies listed for Markham, ON build new pools. The construction window is short in this climate, so ask early where you would sit in the schedule and which stages would run into fall if the start date slips by a few weeks.
Area overview: Markham, ON
7 of the 15 companies we list are based in Markham; the other 8 serve Markham from towns including Richmond Hill (14 km), Whitchurch-Stouffville (11 km) and North York (15 km). The companies on this page are rated from 4.3 to 5.0 across 1,431 reviews; 12 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (100%), responsiveness (78%) and quality (75%). 10 are open on Saturdays and 3 on Sundays. 1 shows a licence on its website. Domain records put 7 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 1 offers financing or payment plans; 6 give free estimates and 2 are family- or locally-owned. We have a website on file for all 15 of the companies on this page; all 15 publish a contact page; 13 list a public email and 2 take bookings online. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Does a pool builder need to be nearby?
7 of the 15 listings are based in Markham; the others are within 20 km. Builders cover wide territory in this trade. What matters is how far they will drive for warranty work years after the deposit cleared, so ask that plainly.
Silver Pools Sales & Service
“Called for information on a new to me above ground pool and they were very helpful and helped me with my questions even knowing a sale would not be had.”
Swim Clean Pool Service Inc
“As a residential property management company in Toronto, I use the team from Swim Clean Pool Service to maintain pool and hot tubs systems at numerous properties.”
Ace Pools
“Their pricing is competitive, and their fleet has cleared my driveway efficiently all season.”
Blue Planet Pool
“They transformed it into a safe and non-slippery zone, making it a pleasant and secure experience to walk on.”
Tecum Pools and Spa Ltd.
“I hired the Tecum team to replace my pool liner and skimmer, and close the pool for the winter.”
Plasterrock Pools
“Huge appreciation and thank you to Nick and his professional team for making our pool look fantastic!”
Bremner Pool and Spa
“They've got a wealth of experience and always available to answer questions or give advice.”
Pool Craft
“The landscapers (the twins) were truly great to work with and even treated our place better than we do - taking extra care to make sure every stone and every piece of sod was laid just perfectly.”
Poolmaster Canada Inc
“Although I did not buy my tub at Poolmaster, all the staff, especially Carlina , have been incredibly helpful.”
Why these companies made our list
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