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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 & Maintenance

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. 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.

New/ Replacement Window Double Glazing

Broken or failed double glazing units can be unsightly and also contribute to heat loss.  We replace all types of glass whether it is clear, frosted, leaded, toughened, Pilkington K, or laminate.  We will simply visit your property and measure up then give you a quote. If you are happy with the quote, we will agree a convenient time to return to your property and remove the old glass and install the new glass.

  • 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
  • External Door Frame Hinges
  • Window Restrictors
  • Windows realigned
  • Jammed windows opened and repaired
  • Leaks and draughts cured where possible
  • Window gasket renewed
  • Cat flap installation 

Upvc Windows Replacement Parts

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.

Window Handles 

We supply and fit a range of different window handles for all types of windows. 

Window Locks

Broken or problematic window locks can be related to the internal mechanism or handle / lock on the frame. We can supply and fit both with handles available in a range of finishes to order


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. 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 can supply and Install replacement UPVC (double-glazed / triple glazed) glass units from Derry to Belfast and right across Northern Ireland.

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.

We Repair and Replace Double Glazed Units

Derry City Glass All Purpose Glazing emergency glass maintenance shop front commercial and domestic glass repairs and replacement glass derry glassThere are many factors that contribute to the misting up of double glazed sealed units. One of these factors can be temperature conditions. If a double glazed sealed unit is fitted somewhere that it is exposed to hot and cold temperatures all of the time, then in theory this can shorten the lifespan of the materials used to seal it (expansion and contraction of materials). Also another contributing factor can be the UPVC window frames that the double glazed units are fitted within.

For example, if the frames allow rain to penetrate below the beading (poorly fitted beading or worn gasket rubber), than the double glazed unit may be sitting in water which can make the double glazed unit less effective and shorten the life of materials that seal it. Also, poor construction of the double glazed sealed unit may also be a contributing factor. And mainly, the reason for most double glazed units misting up is simply old age.

We know it’s a big decision to replace your windows, whether it’s for added security, improved energy efficiency or carrying out renovations.
New windows are an investment, and we’re here to ensure you make all the right decisions for your home. Double-glazed windows are a modern day essential and, alongside style, new windows improve energy efficiency and security.  We’ll help you design the perfect windows which will complement your home and make the most of your views whilst offering fantastic energy efficiency. Any design of window is available – if you can draw it, we can supply it!
check out out new window page here.

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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