Allstate Exteriors & Restoration Services LLC in London, OH offers top Roofing and Gutters and Siding Services in the London area. Allstate Exteriors is a full-service roofing repair and replacement contractor providing professional home improvement services to residents all throughout all of Central Ohio. Family Owned and Operated, A+ Rating on the BBB, and the best Warranties in the business. Offering payment options and all the help you need with insurance claims.