Replacing window sealed units

david69_2

Just to add my views on this sealed units break down ie mist up mainly due to bad drainage ie when the rain and condensation dont have anywhere to go and over time the water breaks through the seal that surrounds the 2 panes of glass sealed unit.
So you could spend alot of money replacing the glass and if the installer doesn't check the drainage slots are clear or have been correctly positioned in the first place then the problem will return in another 2 or 3 years depending on the conditions.
hope this helps