

Know-A-Guy Roofing & Exteriors


Know-A-Guy Roofing & Exteriors

5-Star Rated Services
0% Financing for up to 12 Months
25-Year No Gap Warranty
Locally Owned & Operated

5-Star Rated Services
0% Financing for up to 24 Months
25-Year No Gap Warranty
Locally Owned & Operated



























































We offer a full range of residential roofing options—Asphalt shingles, metal roofing, stone-coated steel shingles, Gutters, Vinyl siding, Hardie board siding, Windows.
We offer our 25-Year No Gap Workmanship Warranty, plus manufacturer warranties depending on the materials. Financing is available with 12 months interest-free and no monthly payments programs to make the process affordable.
If you notice curling or missing shingles, dark streaks, moss, or other visible damage—or if your roof is over 15–20 years old—it’s time to schedule an inspection. We’ll assess your roof’s condition and advise whether a repair or replacement is most appropriate.
Yes—we specialize in storm damage repairs, roof tarping, and insurance claims. Our team assists you through every step, from inspection to working directly with your adjuster so you get fair coverage.
Most residential roof replacements can be completed in one full day.
Absolutely. We are a fully licensed, insured, and BBB-accredited roofing contractor based in Westerville, Ohio. We serve Columbus and surrounding communities with a solid reputation backed by real customer reviews.

If you notice curling or missing shingles, dark streaks, moss, or other visible damage—or if your roof is over 15–20 years old—it’s time to schedule an inspection. We’ll assess your roof’s condition and advise whether a repair or replacement is most appropriate.
We offer a full range of residential roofing options—asphalt shingles, metal roofing, and stone-coated steel. We specialize in premium brands and will guide you to the best option based on aesthetics, durability, and budget.
We offer our 25-Year No Gap Workmanship Warranty, plus manufacturer warranties depending on the materials. Financing is available with 12-24 months interest-free and no monthly payments programs to make the process affordable.
Yes—we specialize in storm damage repairs, roof tarping, and insurance claims. Our team assists you through every step, from inspection to working directly with your adjuster so you get fair coverage.
Most residential roof replacements can be completed in one full day. We take extensive care to protect your property and leave your site spotless—no nails left behind, and minimal disruption to your daily routine.
Absolutely. We are a fully licensed, insured, and BBB-accredited roofing contractor based in Westerville, Ohio. We serve Columbus and surrounding communities with a solid reputation backed by real customer reviews.