About 87% of Covington Woods was built between 1970 and 1999, which means the neighborhood contains two entirely different window problems — original single-pane aluminum at one end of the range, and early double-pane units now failing at their seals at the other.
On the older end of the range, the issue is the same aluminum single-pane construction found across 1970s Sugar Land: a frame that conducts heat and glass with no insulating cavity.
On the newer end it is a different failure entirely. Insulated glass units seal a gas-filled cavity between two panes, and that seal has a service life. When it goes, moisture gets into the cavity and the unit fogs permanently — the milky haze between the panes that will not clean off from either side because it is not on either side. A double-pane unit installed in 1996 is now thirty years old and comfortably inside the range where seal failure is expected.
That distinction matters because the two situations call for different conversations. A failed seal on an otherwise sound frame can sometimes be addressed by replacing the glass unit alone; an aluminum single-pane window cannot be improved without replacing the frame.
The heavy tree canopy the neighborhood is named for cuts solar gain on shaded elevations, which is why owners here often notice that one side of the house behaves quite differently from another.
Permanent fogging between panes on double-pane units now thirty years old and past their seal life.
The 1970s end of the neighborhood, where the frame itself is the problem rather than the glass.
Establishing whether the frame is sound enough to keep, which the two eras answer differently.
Mature canopy that cuts solar gain on some elevations and not others, within the same house.