Windows manufactured in the last 30 years typically have two-panes of glass. One sheet of glass
on the outside, another on the inside, with a pocket of air in between. The seal that joins
these "double-pane" windows sometimes fail. The seal failure allows air to flow in between
the two glass panes.
When sunshine hits the window the air inside heats up causing the air to expand and leak through
the damaged seal. In the evening the window cools and contracts, drawing air-and humidity-with
it. Year after year when this cycle of expansion and contraction occurs, it stresses the window
seals more and fills the air space with moisture and condensation that can't be wiped away.
If the problem is not resolved it can lead to stress cracks in the glass, and water damage
to the window frame and sill.
Most window frames are built so the double-pane glass can be removed.
OnSite measures, cuts, and builds a new double-pane unit using high quality glass spacers and
sealant to join two new panes of energy-efficient insulated glass.
After we reinstall the glass there is no more condensation or fog, and your window regains its
original insulating properties.