Secondary Glazing NI

                                                                                                                                                        

  Warmer - Quieter - Safer

Secondary Glazing for your Home

Would you like warmer and quieter windows, but without the expense and inconvenience of replacing your existing windows?

Secondary Glazing is an additional window fitted to the interior of the reveal allows your original windows to remain intact.

 It's discreet appearance and slim design will not be intrusive to external aesthetics. 

The sliding internal glass units we fit will make your windows warmer and will reduce external noise significantly. 

We install throughout Northern Ireland, so please get in contact to arrange our free design and quote. 

   Full Range


Get a better nights sleep.

Secondary glazing can create an acoustic cushion to reduce the sound entering your home. If you live on a busy road, railway line or even a flight path you will be well accustomed to the disruption noise pollution can cause on your day to day. 

By installing secondary glazing your home or workplace you will benefit from a more peaceful environment.

The additional barrier of 4mm toughened glass, 6.8mm Laminate glass or 5mm Polycarbonate will reduce the external noise pollution coming into your home and is more effective than traditional double glazing alone.

What our customers say 

''We Had windows done in the house and the results was fantastic! Less noise and no draughts now!

Very Professional and friendly service at affordable rates from the fellas at Secondary Glazing NI. They Cleaned up after themselves and worked hard until the job was completed.''


''Fantastic service. We’ve noticed such a difference in our energy bills since we had secondary glazing fitted. High quality and professional workmanship. Give them a call you won’t be disappointed.''


''A fast and friendly service with great advice helping me to understand what I needed. It has made such a positive impact and really helped to reduce the sound. Thank you I'm so pleased with the end result!''

Contact us:

Email: sales@secondaryglazingni.com

Tele: 07938 823252 / 07720 691214

V.A.T. Number: 477 8673 22

Secondary Glazing Belfast, Trading as Secondary Glazing NI