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Window Maintenance, Repair & Replace

Replacement Window Glass

Window Frame Repairs 

Door Repairs

We pride ourselves in providing window repairs in domestic and commercial properties in all Derry. we have worked on every type of property and every type of window,  our window repair services will put your window back to its working condition. Whether you are looking for a sash window repair or UPVC window repairs, we can mend your window.

We stock a wide variety of glass and glazing products and can be considered your one stop shop for all your glass needs in Northern Ireland. Our window repairs are not just for broken glass, with double glazing, we can repair broken locks and door handles. 

With many years of experience under our belts we can confidently say that we are experts when it comes to window repairs in Northern Ireland. Our fully qualified staff is capable of repairing and maintaining many different types of window, including UPVC, metal sliding windows and wooden framed windows, so if you’re in need of window repairs in Northern Ireland. Then do not hesitate to contact us.

Serving both domestic and commercial customers, we strive to give you the best service possible when installing and repairing your windows.  At All Purpose glazing our ultimate goal is leaving all our customers more than satisfied. For expert knowledge and advice on what might work best for your property, we are the team to call.

APG- A Glazier for All Of Your Glazing Needs.

Quality Local Glazing Maintenance Installer

Our strong reputation in the window and door industry has been built upon strong management, excellent customer services, time tested double glazing products and our professional fitting teams.

No window repairs in Derry Ciy are too great or too small for us. We’re capable of replacing components such as locks, hinges and springs, plus, we also offer a glazing service. When it comes to window repairs Derry City and across Northern Ireland we are the experts.

Double Glazing Supply and Fit- Double Glazing Experts

Over 30 years experience supply and installing glass in Derry. From standard double glazed units to 5 star energy efficient glass, we can supply units to meet your budget and specifications. We offer a huge number of different types of glass so whatever your needs you can come to us with confidence. 

Our Full Repair Service
If you have any of the following window or door repairs which need sorting out, put your mind at ease knowing our Repair Team are here to help with these as well as your misty windows:
Repair window, door locks and hinges, change and upgrade door and window handles

Replace cracked glass in uPVC windows and doors Upgrade glass units to A-rated high performance double glazing
Replace glass units with condensation
Repair chipped uPVC in windows and doors

Common Window Repairs Carried Out

  • Double glazed window repairs
  • Lock, handle and hinge repair or replacement
  • Friction/restrictor stay repair or replacement
  • Polycarbonate roof panel replacement
  • Leak investigation and repair
  • Roof vent installation
  • Renovation of uPVC, hardwood and aluminium conservatories
  • Leadwork, including valleys and flashings
  • Adjust your doors and windows


Replacement Window Glass

We Supply glass to the many construction and building maintenance companies in Derry and across Northern Ireland for this reason we stock or can source many of the window and door accessories such has window handles and Upvc door locks.

We offer a full range of window hardware for timber, PVCu and aluminium frames, handles, hinges, window vents and sliding sash hardware from leading brands including Yale, Trojan and Hoppe. For high security, we stock high quality Espagnolette locks and window restrictors.

We also offer maintenance and restoration services too as well as window repairs. Original wooden framed windows need regular maintenance; we can renovate your windows to ensure that they last for many years. With over 30 years experience of window repairs in Derry we’re fully capable of working with all varieties of windows.

Door Repairs

  • UPVC window repairs Derry City

  • We repair all UPVC windows and doors
  • UPVC restoration
  • Hinges
  • Handles
  • Locking mechanisms
  • Window sills
  • Weatherproofing
  • Glass repairs
  • Commercial doors and shop fronting repair and replace

Window Maintenance- Draft Proofing

Many homes feel colder than they should because of draughts which allow cold air into the house meaning that despite turning your thermostat to the maximum level, you will still feel cold. Our expertly installed glazing helps combat draughts once and for all, allowing your home to retain heat better and translating to lower energy bills. Our windows are specially designed to keep heat in and draughts out.

Visit us


The Glass Works, Skeoge Industrial Estate Beraghmore Road Derry City BT48 8SE

Call us


+44 (0) 2871 357 555

Ready to speak to us?

If you’ve got this far you should have a good idea what we do. The next step is to give us a call about your project – from double glazing repairs to new upvc windows, our team of dedicated professionals will be able to help.

Call us


+44 (0) 2871 357 555

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