Secondary Glazing - Fixed

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High Security Locking • Slim Sightlines • Enhanced Thermal Performance

SYSTEM OPTIONS

Fixed Secondary Glazing Systems

Fixed secondary glazing provides a simple, cost-effective solution where access to the existing window is not required, with a choice of frame systems to suit different fixing methods and finish preferences.

Face Fix Only

Economy Odd Leg System

A straightforward and highly cost-effective fixed secondary glazing option, designed for quick installation where a simple face fixed solution is required.

Operation: Fixed Fixing: Face Fix Frame: Economy Odd Leg

Single glazed fixed panel – non-removable.
Pre-drilled frame for quick and easy installation.
Most cost-effective secondary glazing option.
Ideal where access to the primary window is not required.

GLASS OPTIONS

Secondary Glazing Glass Specification

A range of glass options designed to improve thermal performance, sound insulation, safety and privacy depending on your project requirements.

Glass Type	Thickness	Best For	Key Benefits
Float Glass (Annealed)	4mm	Standard use	Good improvement in sound and thermal insulation
Obscure / Patterned Glass	4mm	Privacy areas	Maintains light while increasing privacy (bathrooms, bedrooms)
Toughened Glass	4mm	Safety glazing	Increased strength and security over standard float glass
Float Glass (Annealed)	6mm	Larger panels	Improved sound & thermal performance with greater strength
Toughened Glass	6mm	Safety + larger sizes	Stronger glass with added safety and security
Laminated Safety Glass	6.4mm	Security & insulation	High safety performance with improved sound and thermal insulation
Acoustic Glass	6.8mm	Noise reduction	Significant improvement in sound insulation
Double Glazed Unit	20mm	Maximum performance	Extreme thermal and acoustic performance (Heavy Duty system only)

COLOUR OPTIONS

Frame Finishes

Available in a selection of standard finishes, or any RAL colour to suit your project.

HIPCA White KL9910 Semi-Gloss

Van Dyke Brown BS08B29 Gloss

Silver Anodised Finish

Any RAL Colour

Choose from over 200 RAL colours for a fully bespoke finish. RAL finishes are special order and may extend lead times.

View RAL Chart

GALLERY

Secondary Glazing Installations

A selection of recent projects and detailing.

TECHNICAL DETAILS

Fixed Secondary Glazing Technical

Technical information for our fixed secondary glazing units, including recommended sizes, key frame dimensions and suitable applications.

Recommended Sizes

Guidance

Min. Width (mm): 300
Max. Width (mm): 1500+
Min. Height (mm): 300
Max. Height (mm): 2500

Key Dimensions

Frame Data

Outerframe Depth (mm): 12
Outerframe Width (mm): 20
Glass (mm): 4 - 6.8
Largest Distance to Visible Glass (mm): 20

Specification Summary

Fixed Panel

Operation: Fixed
Access to Primary Window: Not Required
Application: Domestic / Commercial
Best Use: Noise & Draught Reduction

Suitable Applications

Fixed secondary glazing is best suited to areas where a non-opening panel is appropriate and access to the existing window is not required.

Most suited to treating fixed windows, windows with a large clear glass area, or windows in tight spaces such as bay windows.

Suitable for both commercial and domestic applications, including busy areas where traffic noise is a nuisance.

Ideal for listed buildings, heritage or conservation areas, and as a cost-effective alternative to replacing existing single glazed windows.

Also well suited to leasehold properties or any property where the existing external windows cannot be modified.

Important: Sizes shown are for guidance only. Maximum widths can vary depending on your chosen height, and vice versa.

Panel weight: Panels can be made larger than the guideline sizes, but once these are exceeded they can become very heavy, particularly when using laminated or acoustic glass.

Access: Fixed secondary glazing is not recommended where regular access to the existing primary window is required.

Glass safety: Any specified glass must comply with BS 6262 Part 4 safety glazing requirements where applicable.

BROCHURES