ROI Construction is a second generation roofing company that has been providing customers in DC & Maryland with a Positive Return On Investment with their roof, gutters, siding and windows since 1974. We use the highest quality of products such as CertainTeed shingles, GAF shingles, JamesHardie Siding, ProVia windows, DaVinci slate, MuleHide flat roof material, and much more. The company prides itself on its expert craftsmanship and as well as its efforts to provide every homeowner with a positive Return On Investment in Anne Arundel County MD.