Windows and Double Glazing Repairs

At CN Glass our expert team provide a complete and efficient Double Glazing Window Repairs and Replacement service in and around the Banbury, Oxfordshire area.

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

Double-glazed Units, Leaded Light Repairs And Traditional Glazing Techniques.

Double glazed windows offer excellent insulation against both cold temperatures and outside noise, resulting in reduced window misting and therefore lower heating expenses and overall household costs.

View further details on Windows Energy Ratings for more insights on window heat efficiency.

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

Window Repairs

IIf 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.

If you suspect that your window may have a mist issue, read our page about how to diagnose your double glazing.

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.

CN Glass Offers A Range Of Repair And Replacement Services, Including:

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

*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.

Let’s get in touch

Contact CN Glass today to arrange a quotation. Reach us in the following options.

CN Glass | Custom Glass Suppliers and Glazing Contractors in Banbury


Norton House, Beaumont Road
Banbury, Oxfordshire OX16 1SD

CN Glass | Custom Glass Suppliers and Glazing Contractors in Banbury

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