Window Repairs

C N Glass are Manufacturers of toughened glass and sealed double glazed units, this allows us to provide a complete and efficient double- glazing repair and replacement service in and around the Banbury area.

We can help with every type of repair and maintenance for your windows, doors or patio doors. We are specialists in window repairs and in particular;

Double-glazed units, leaded light repairs and traditional glazing techniques.

Double glazed windows provide fantastic insulation against the cold and noise from the outside, and they are major contributors to lower heating bills. On the whole windows only require minimal regular cleaning and maintenance but with natural wear and tear and use over time, some repairs will probably be required.

The repairs we are most often required to carry out to double glazed windows involve the areas where there are moving parts, that frequently come into contact with other parts of the window or the parts that perform a function like the window handles and window locks or window hinges, friction stays and restrictor hinges.

Double Glazed Window Repairs

We provide window repairs for all types of windows including uPVC, aluminium, timber and also secondary double glazing.

Misted and foggy windows

If you have a misted and/or foggy double glazed window, this means that your sealed glass unit has broken down and condensation has built up inside between the two glass panes so frustratingly, you won’t be able to clean it. We can help you by replacing the misted glass unit as this is often a more cost-effective solution than replacing the entire window providing the frame is in good condition.

We can repair and replace a wide variety of window handles including cockspur handles, espagnolette/espag handles (left or right hand cranked, in line or other handles used on espag locking systems), tilt and turn window handles, uPVC window handles of all kinds, and timber casement fasteners.

We can repair and replace window locks on uPVC, aluminium and timber windows including espagnolette window locks, deadbolts (Mila, Maco, Roto, WMS, Saracen Shootbolt), window latches, timber sash window locks and more.


misted double glazing

C N Glass offers a range of repair and replacement services, including:

  • Broken windows replaced
  • Misted windows replaced
  • uPVC door and window servicing
  • uPVC repairs
  • Door and window realignment
  • Repair and replace locks, handles and hinges
  • Gaining entry to door and window locks if broken or the keys are lost
  • Patio and French doors
  • Replacing of letterboxes
  • Lock changes on new homes
  • Windows made into Fire Escapes
  • Draughty and leaking windows repaired
  • Seals and Sealant Replaced
  • High-performance glass upgrades
  • Window Handle and Lock Upgrade
  • Locked Windows unjammed
  • Window Cat flaps fitted

*Note: If you purchase your own cat flap for us to install into a double glazed unit, please check to ensure the cat flap is specifically designed for installation into a glass unit- some cat flaps will require an adaptor for installation into the glass.