Sliding secondary glazing is suitable for most window types
Our most popular option

Horizontal sliding secondary glazing units are slim, versatile and easily accessed for cleaning and ventilation. The perfect fit for all property types and styles, offering up to a 65% reduction in heat loss and up to 80% noise reduction.

Suitable for a range of windows such as casement, hinged or any window with vertical bars. Available in a wide range of sizes with a choice of configurations or made to fit your home’s exact requirements and specifications.

Available in two, three, four or five panels, the sashes can be completely removed when you need to clean the existing window. Sashes are fitted with brass rollers for a smooth sliding action.

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Secondary Glazing Illustration
The Granada difference
Quiet
Secondary glazing offers the most effective sound insulation. Reduces noise by up to 80% and significantly outperforms double glazing.
Warm
Improves thermal insulation of existing single-glazed windows by around 65%, approximately 10% more than double glazing achieves.
Secure
An affordable, discreet, highly effective solution to enhancing security. No external access required, ideal for multi-storey buildings.

Easily accessible but secure

Secondary glazed horizontal sliders allow easy access to primary windows for ventilation and cleaning. Each individual panel can be lifted into the outer frame and swung inwards to facilitate removal. Additional accessories options such as specific locks and handles are available for increased security.

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Features & Options of Horizontal Sliding Secondary Glazing
Annoyances solved
Annoyances solved
Noise, cold, security, condensation issues managed and controlled.
Multiple design options
Multiple design options
Historic, contemporary, or unusual designs. 200 frame colours, lift out panels.
Many glazing options
Many glazing options
From 4 – 8mm thickness to thermal coatings, all fully customised.
Full advisory service
Helpline for homeowner product, service or installation queries.
Full advisory service
Delivery or installation
Local installers trained and accredited by us or home delivered.
Delivery or installation
10 Year Guarantee
For all frames and glazing. British factory made, engineered to last.
10 Year Guarantee

A colour to suit your scheme

Find the perfect match for your Granada window insulation system using our range of over 200 RAL colours. Whether you own a new build, listed property or commercial property, we can fit your requirement.

                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                         

Start your secondary glazing journey today...

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