DO YOU NEED YOUR ROOF REPAIRED OR REPLACED? Talk to us about our roofing services in Johnstown, CO Has your commercial roof been damaged in a storm? Do you need roofing repair work done on your home? Whatever the case may be, you can trust the experts at RTC Roofing & Exteriors to get your roofing services done right. We’re a roofing company based in Johnstown, CO. Our roofing services include: Residential roof inspection and repair Commercial roof repair and re-roofing work Multi-unit and HOA roofing installation and maintenance