All Hands On Deck! Posted on September 29, 2017September 29, 2017 by DWM Roofing Over the course of 4 glorious days, the DWM Roofing crews replaced the roofs on condos in the Abington community of Columbia, in Howard county. In all, they replaced 222 squares of shingles and 52 sheets of plywood. Nice job, guys! Posted in roofing.