Replacement double glazed units and misty glass
Double glazing & misty units
When a double glazed window turns milky or you see condensation between the two panes, the seal on the unit has failed. You don't need a new window. We measure the unit, have a new one made and fit it into your existing frame.
- Fits: uPVC, timber and aluminium frames
- Glass: Low-E, argon filled, warm edge
- Options: Clear, obscure, toughened, laminated
- Frame: Kept in place
Signs a unit has failed
- Condensation or a milky film between the panes that you can't wipe off.
- Streaks or water marks inside the unit.
- A draught or a colder feel near one pane compared with others.
- A crack in either pane.
How a unit replacement works
- Measure. We measure the glass and note the thickness and type.
- Make. The new unit is made with low-E glass, argon fill and a warm-edge spacer.
- Fit. The beads come off, the old unit comes out and the new one goes in. Most units take well under an hour each to fit.
Upgrading while you're at it
A replacement unit is a chance to change the glass. Swap to obscure glass in a bathroom, toughened glass in a door or low-level pane, or laminated glass for extra security. Older units with plain glass can be replaced with modern low-E units that keep more heat in.
Double glazing & misty units gallery
Photographs of jobs we've completed. Select a photo to enlarge it.
Common questions
Something else? Call 01382 814273.
Available across:
Can you just fix the seal on a misty unit?
Not reliably. Once moisture is inside the unit, the lasting fix is to replace the sealed unit itself. The frame stays where it is.
How quickly can a replacement unit be made?
Units are made to measure, so there's a short wait between measuring and fitting. Call us for the current lead time.
Do you replace units in timber and aluminium frames?
Yes, as well as uPVC. Tell us the frame type when you get in touch.
Related services
Glass repairs & replacement
Cracked and broken glass in windows, doors, shopfronts, greenhouses and furniture.
uPVC windows
Casement, tilt and turn and sash-style windows on VEKA profile, fully reinforced and A-rated.
24-hour emergency glazing
Our phone is answered around the clock for broken glass across Dundee and Angus.
Get a price for double glazing & misty units
Call the office or send a few details and photos. We'll come back to you, arrange to measure where it's needed, and give you a price.