KOI Build Co provides roofing repair and replacement services for homeowners in Olympia, Lacey, Tumwater and throughout South Puget Sound, WA. We help protect your home from the Pacific Northwest weather with quality roofing materials and professional installation.

Our team inspects your existing roof, identifies issues and recommends the right solution for your home and budget, whether that is targeted repairs or a full roof replacement. We install shingles and other roofing systems with proper ventilation, flashing and waterproofing to extend the life of your roof.

From storm damage and leaks to aging roofs at the end of their service life, KOI Build Co delivers dependable roofing work, detailed clean-up and clear communication so you know exactly what is happening on your project.