BBB Accredited • A+ Rated by BBB • Owens Corning Preferred Contractor • Veteran-Owned • Licensed in MD, D.C. & VA • Serving Since 2001BBB Accredited • A+ Rated by BBB • Owens Corning Preferred Contractor • Veteran-Owned • Licensed in MD, D.C. & VA • Serving Since 2001


WE HOP TO IT!
Since 2001, A1 Roofing’s KangaRoof has helped homeowners and businesses in Columbia and nearby Maryland communities compare practical roof repair and replacement options. We explain what is urgent, what can wait, and which solution offers the best value for the roof’s condition, the customer’s budget, and long-term reliability.


Materials, Warranties, and Workmanship
A1 Roofing’s KangaRoof is an Owens Corning Preferred Contractor and uses roofing products from Owens Corning, CertainTeed, Versico, Elevate, and Duro-Last. Shingle roof replacements include a 10-year workmanship warranty, while manufacturer shingle warranties are normally 40 to 50 years, depending on the product and manufacturer terms.
Roof repair warranties typically range from one to three years. Residential flat roof replacements include a 20-year material warranty and a 10-year workmanship warranty. Commercial flat roof systems include 20-year material and workmanship warranties. Exact coverage should be identified in the written proposal for the selected roofing system and scope of work.
Why Choose A1 Roofing’s KangaRoof
A1 Roofing’s KangaRoof is a veteran-owned, BBB Accredited and A+ Rated roofing company serving the region since 2001. We are an Owens Corning Preferred Contractor and hold contractor licenses in Maryland, Washington, D.C., and Virginia. Customers receive clear repair and replacement options, a written estimate, and applicable warranty terms before work begins.















