Nine years of doors that close the way they should.
DDA Construction is a window and door installer based in Montgomery County, working across Maryland, the District and Northern Virginia since 2017.
We started as a small install crew doing replacement windows and entry doors in Montgomery County homes. Over nine years the openings got bigger. Builders and architects started calling us for the jobs other crews didn't want: 10-foot pivot doors, lift-and-slide walls, glass corners, and more recently complete window packages shipped from overseas factories.
That work taught us that a large door is only as good as the opening it sits in. Most of our time on a big job goes into things you never see once it's finished: checking the header, leveling the sill, setting the pan, and tuning the hardware until a heavy panel moves with one hand.
We still take the small calls. A sliding door that fights you every morning matters to the person who owns it, and it's often a 45-minute fix.
How we work
Nine years, in short
- 2017DDA starts installing replacement windows and entry doors in Montgomery County.
- 2019First large sliding and folding door projects for local builders.
- 2021Pivot doors and lift-and-slide systems become regular work. Service area grows into DC and Northern Virginia.
- 2023We begin installing and servicing imported aluminum door and window systems.
- 2026Nine years in the trade, with repair and maintenance a growing share of our calls.