Cunningham Sealing has the experience to find your leak and solve the problem. 
Water leaks are one of the most damaging things that can happen to a condo. Often, leak detection is not simple, particularly in large commercial or residential high-rise buildings where there are many avenues where water can travel and change directions before appearing. 
There are three main causes for water leaks in buildings—a water leak in the building envelope, which is the roof, walls and windows; a foundation leak from groundwater; or a leak from a plumbing system, whether it’s freshwater or sanitary sewer drain lines. 
Cunningham Sealing specializes in finding leaks in the building envelope. By water testing and die testing, 
the origin of the leak can be found, and the proper repair can be made. Water leaking around a window is usually coming from the flashing and/or intersection with the exterior siding system. Flashing is the thin layer of waterproof material that keeps water from getting into the building at the joints between perpendicular surfaces. 
Of course, the most obvious sign of a leak is visible water, but there may be other indications. Above ground, you’ll see peeling and blistering paint, or staining inside an apartment, “There are underground leaks where you actually see water coming in through the foundation of walls, and sometimes you’ll see efflorescence or white staining on the block or cement walls of the basement. We don’t see as many basement leaks. Most of the ones we see occur in and around windows and on ceilings from the roof.” 
Leaks are very hard to pinpoint. Unless there’s water damage to the sheetrock, to the ceiling, the homeowner won’t notice it. It’s only a visual sign unless there’s mold or actual water somewhere.