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UPVC double glazing provides additional warmth, and you can easily replace smashed or damaged glass with new sealed units. Condensation between glass panels means that a sealed unit is damaged and should be replaced to maintain maximum heat efficiency.


Although UPVC is designed to "last a lifetime", their finish can degrade, which detracts from the exterior appearance of your home. Consider replacing the whole frame with new double glazing, and reinstall your old sealed units to save some money.

  • DIY Kit will repair 4 double glazed sealed units condensation clear fog mist

    DIY Kit will repair 4 double glazed sealed units condensation clear fog mist

    £34.99
    Buy it now
    Free P&P
    Repair foggy units from £4.99 per unit (based on 12 unit kit) This kit will repair up to 4 windows This kit will not repair toughened glass units, toughened glass kits are available directly from Cond...
  •  Double Glazed Sealed Unit 498mm x 1914mm

    Double Glazed Sealed Unit 498mm x 1914mm

    £30.00
    Buy it now
    + £0.00 P&P
    Double Glazed Sealed Unit. The Glass unit is 28mm thick and in new condition. Kite marked saftey glass, price is for 1 unit in picture.
  • double glazed units

    double glazed units

    £20.00
    Buy it now
    or Best Offer
    + £0.00 P&P
    Hello guys, I am selling brand new double glazed units the make is 4-20-4 clear toughened Low -E safety glass with warm edge spacer bar 13 no - 825 x 625 3 no - 625 x 625 1 no - 825 x 1030 Price £20 e...
  • Door Glass Toughened Clear Frosted Double Glazed Units

    Door Glass Toughened Clear Frosted Double Glazed Units

    £20.00
    (£20.00 / Unit)
    Buy it now
    or Best Offer
    + £0.00 P&P
    Double glazed door glass toughened 913x220x25mm to fit up can door
  • 2 double glazed units toughened

    2 double glazed units toughened

    £15.00
    Buy it now
    or Best Offer
    + £0.00 P&P
    Two used toughened double units. toughened glass. the unit are made up with k glass /florielle.