I worked at E-Plus in Sterling, handling enterprise hardware configuration, OS imaging, and server rack builds. I currently work at Core One Solutions, also based in Sterling. Between the two, I have spent years inside Sterling office parks and know the buildings, the wiring, and the IT environment here better than most of Northern Virginia.
Describe the problem and I will tell you what resolving it requires. If a less expensive option would serve you better, I will say so.