These people are absolute horrendous. I have ordered a liner replacement in 2018. They haven't even bothered to check the site. After two weeks delay they sent the "measuring" guy". The liner came 2 weeks late. Then the "professional" installer team came. 1-st misunderstanding; instead of painting only the "rust spots" they painted all the walls so I had to pay extra. They installed the liner but left some collected garbage from the pool scattered throughout my back yard. After a couple of emails someone came to clean it. Then someone had to come and fix the cooping damaged during old liner replacement.
After two months the liner ripped at one of the stairs corner.
I contacted them the same year and they wanted pictures. I was not able to send it to them as the pool was full of water, but in the spring 2019 I had. Gary Kahoon answer was: Oh you need a new liner; and then he started started asking me about my family and how things are going like we were old mates; very disgusting.
After seeing his approach to their "Customer Satisfaction" I decided to have a go at repairing it.
Bought a Heat Gun and got working. After removing the bracket around the stairs a realized what the issue was. The "professionals" they sent have not installed a new gasket in the stairs channel, and the bracket pressure was not enough to hold the liner.
After buying some double sided tape to make a "gasket" I managed to put it back together and so far it holds. Total cost for tools, materials and labor CDN $635.
I have asked them if they are willing to offer at least a refund but after one month there was no answer, so I decided to tell my story.
I can offer proof of payment, pictures and email exchanges if required to post my review.
My advice: Stay away from Seaway Pools Markham! My next stop : Markham Small Claims Court.