Markham Window Cleaners' owner/operator. I've been cleaning residential windows in Markham, Unionville and Stouffville for 25 years now. It's still fun... and I'm grateful to my many kind perennial clients who make it so. This is seasonal work for me, from the beginning of April, to the end of October. After June each year, I'm happy to take unreferred new customers, and to provide quotations within Markham/Unionville/Stouffville. more... See more text