Secondary Double Glazing

Double Glazed Secondary glazing windows

Secondary Double Glazing
Our aluminium secondary double glazing systems have all been designed to be strong, reliable, long-lasting, low maintenance & very discreet & unobtrusive.

They provide a multitude of benefits, some obvious, some less so!

Secondary Double GlazingPlanning Permission & Building Regulations
The provision of secondary glazing is not generally subject to either:

planning permission
building regulations
Quick, Clean, Non-disruptive Installation
The installation of secondary windows is very quick and clean:

disturbance to the buildings occupants is kept to an absolute minimum
no need to redecorate afterwards
Ease of Access
No external access is required, therefore:


Thermal Insulation
Secondary Double Glazing Standard secondary double glazing substantially improves the thermal insulation of single glazed windows and doors & additionally secondary windows can be:

glazed with Low ā€œEā€ heat reflective glass
double glazed with ā€œAā€ Rated sealed units
better than the Building Regulations 1.8uV for replacement windows


Secondary glazing will also:

save on energy reduce fuel bills
improve Energy Performance Certificates
secondary glazing for thermal insulation
Sound Proofing Windows & Doors
Our secondary glazing sound insulation windows achieve significant levels of noise insulation & sound reduction.

Laminated acoustic glass can be specified to maximise the noise reduction from all types of obtrusive noise, such as:

general street noise
road & traffic noise
industrial & factory noise
airport & aircraft noise
railway, station & train noise
Secondary double glazing is ideal for noisy buildings such as pubs, clubs, concert halls & recording studios.

Visit us

Mon-Friday-8am-4:30pm

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

Call us

Mon-Friday-8am-4:30pm

+44 (0) 2871 357 555

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