Window Repairs

Experienced Derry Glazier- Quick and Efficient Window Glass Repair

Same Day Window Repair / Replacement Glass in Derry

Whether a repair, or if you need replacement windows across  the North West , our team of experienced tradespeople provide you a swift, efficient, and cost effective service.

We do work with a good number of Derry  letting agencies, land lords not to mention small businesses on a regular basis, as well as the public and thus, have come across various sorts of windows and door issues.

Our workshop is in Derry City, so there is no inconvenience of waiting for the right size glass or other materials to be delivered. 

We carry all UPVC replacement parts needed to restore U-PVC windows to their working order. We also provide replacement double glazed units in case your window has a smashed, cracked or steamy glass panel.


UPVC Window Repairs

UPVC Windows are great when it comes to locking in warmth to your home and keeping out intruders. But if you’re having problems with a double glazed window it can bring real frustration. If you are unable to open and close the plastic window properly, the chances are you either have a faulty handle, faulty lock, broken hinge or broken window rollers, for all of which we carry replacements parts.

We’re experienced in mending cracks, holes, scratches, scuffs and staining to uPVC window frames, avoiding the need for expensive repairs. Our UPVC restoration service will create specialist, long lasting repairs which blend seamlessly into the rest of the frame.

  • Broken/ Misted double glazed sealed units replaced (including toughened, Pilkington k, frosted or laminate glass)
  • Window friction stay hinges
  • Fire escape friction stay hinges (egress)
  • Child safety friction stay hinges
  • Window handles (all types including espag and cockspur)
  • Window locking mechanisms repaired or replaced
  • Additional security upgrades
  • Lost window keys replaced
  • Tilt and turn
  • Windows realigned
  • Jammed windows opened and repaired
  • Leaks and draughts cured where possible
  • Window gasket renewed


If you have a faulty window please do not attempt to fix it yourself, if not carried out by a professional you may cause further damage and that can lead to needing an entire replacement window.

Upvc Windows Maintenance

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Replacement Double Glazed Units

Same Day Window Glass Repair and Replacement in Derry, With double glazing repair specialist engineers living and working in Derry City we can usually be with you same day you call us,  We can supply and Install replacement UPVC (double-glazed / triple glazed) glass units from Derry to Belfast and right across Northern Ireland. Whether you have a cracked window pane or an entirely smashed window,  If you have windows which always seem to be steamy or hold condensation,  we can help.

We been providing double glazing repairs in Derry for over 30 years, we repair double glazed doors and windows, bi fold doors and composite doors, we can repair place failed misted up units with the latest energy efficient planitherm double glazed units.



Why Choose APG as your Double Glazing Installation Company.

Having worked in the glass industry for well over 35 years we have a depth of knowledge that can help you in your home improvement of any size. we specialise in ALL ASPECTS of glass and glazing. 

At All Purpose Glazing our ultimate goal is leaving all our customers more than satisfied. We ensure our glass is of the highest quality, meeting and exceeding all relevant Building and Energy rating regulations. All our products are custom manufactured on an individual basis to match your own personal requirements. 

We supply and installs a wide variety of glass and glazing services right across Northern Ireland.  

Call us


+44 (0) 2871 357 555

About us

One of Ireland oldest glaziers, A  family run business with care  for  customers at the  heart of our business. providing a comprehensive range of glass and glazing products, design and installation services; workshop facilities, as well as in-house installation and servicing teams. We are based in Derry City but have supplied and installed glass all over  Ireland. 

Our mission

Involved in all aspects of glazing, we are the region’s leading glazing provider.  Our drive to provide great service is reflected in our work.

Our staff are all time served accredited glaziers with vast experience to ensure that every job is completed to the highest standard. Your staff are here to help with any glass or glazing enquiry you may have.

Our offer

  • Care & Attention To Our Customers
  • Full Range of Glass Stock & Glazing Services
  • Cost Effective Experienced Trade Supplier

We are dedicated to providing a complete range of glazing products, installed by our in-house teams of experienced and qualified fitters.

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