Rennison Roof and Exteriors is a local, Irmo South Carolina family-owned business. Operating around the midlands for over 15 years, we know what the exterior of your home is exposed to and live in with you every day. We believe a home is where the heart is, and should be a place where you and yours feel safe. With prompt, honest service you can expect any Rennison job to be completed with the high level of quality needed to ensure your home is protected.