Mainline Roofing has been serving William Lake’s roofing & weatherproofing needs for over 50 years. We specialize in flat roofing, sheet metal flashing, and roof repair. Contact us for a free estimate.

Whether you’re looking to install a new roof or reroof the old one, turn to Mainline Roofing. As a service-oriented roofing contractor, we offer the RoofStar Guarantee that your roof will be 100% waterproof. We provide services such as custom made metal flashing, metal cladding, flat roof, EPDM rubberized roofing, building envelopes, and more. Cascadia, Firestone, and Menzies are some of the brands that we carry out. We are fully insured, you can rely on us for emergency services as well. Call us. more... See more text