Your Backyard Haven – Ontario Pool Builders & Backyard Remodeling Experts providing service to the Greater Toronta Area – including Burlington, Mississauga, Milton, Oakville – Halton Hills, Hamilton, Brantford, Cambridge, Kitchener Waterloo, Stoney Creek, and Grimsby. Ontario Hot Tub Installers, Toronto Hot Tub installation experts. Retailers of Immerspa Spas & Hot Tubs.