01327 300 650

All Your Home Improvement Needs in One Place

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Person repairing a window


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White uPVC conservatory roof vent


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Widest Range of uPVC and Aluminium Windows

350 x 250 Windows - uPVC double glazed windows


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Secondary Glazing



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Contact Info

7 Alvis Way, Daventry. NN11 8PG

01327 300 650

Showroom Opening Times

Monday- Friday
9:00am ~ 5:30pm

By Request


Styleglaze Installations Ltd

Secondary Glazing

South Northamptonshire

Improved Comfort with Secondary Glazing

Noise Reduction, Improved Insulation, and Easy Installation

wooden secondary glazing

Call to Discuss Your Secondary Windows Project or Arrange a Free No-obligation Appointment

Call 01327 300 650

or Send a Message Below


Upgrade Your Traditional Home with Secondary Glazing

Wondering how to enhance your home’s insulation and reduce noise without compromising the integrity of your building?

Secondary glazing is a practical solution that allows you to maintain th eappearance of your home while benefitting from modern efficiency.

Read on to discover the benefits, how it works, and what you can expect in terms of cost and maintenance—all aimed at improving the comfort of your living space with improved energy efficiency, security and noise reduction.

secondary glazing over leaded lights windows
secondary glazing on sash windows

Key Takeaways

Secondary glazing adds an extra pane to existing windows, enhancing thermal insulation, reducing noise, and is cost-effective compared to full window replacement.

Secondary glazing comes in various styles like horizontal sliding, hinged, and vertical sliding systems; each tailored for specific window types and homeowner requirements.

Secondary glazing is an investment leading to potential energy bill savings, and it requires little maintenance besides periodic cleaning.

Understanding Secondary Glazing

Secondary glazing involves incorporating an additional pane of glass into a durable aluminum frame, which is then attached to the wall surrounding the window (face-fix) or the interior surface of the window reveals (reveal fix).

This additional pane creates an insulating air gap that reduces heat loss, thereby improving thermal performance compared to single-pane glass with higher thermal conductivity.

Secondary glazing also makes a significant contribution to reducing external noise pollution and improving security.

secondary glazing on old crittal window
secondary glazing in stone house

The Function of Secondary Glazing

The function of secondary glazing is to:

  • Create an insulating air gap between the existing primary window and the added pane
  • Enhance thermal and acoustic performance
  • Improve thermal efficiency
  • Reduce noise
  • Heighten security

This system is highly effective on single glazed windows and old double glazing. Secondary glazing is most popular for buildings in conservation areas because it allows you to keep the external traditional look while benefitting from modern technology.

Types of Secondary Glazing Solutions

Depending on the style and requirements of your windows, there are several secondary glazing solutions available. Solutions range from window film, DIY kits and professional secondary glazing systems.

As you would expect from a premier double glazing supplier, we only fit good quality solutions that will last you a long time. You shouldn’t have to replace your secondary glazing and to back up our claims, our secondary glazing comes with a ten-year warranty.

secondary glazing in old building with single glazing
secondary glazing full height

Horizontal Sliding Secondary Glazing

Good quality secondary double glazing is always designed around your existing windows so that you can open them easily and access the old windows for cleaning.

Keeping the frames aligned with the existing ones looks tidy and reduces the impact.

Horizontal sliding secondary glazing would typically be used on full length windows as shown in the image.

Vertical Gliding Secondary Glazing 

Vertical sliding secondary glazing is useful for box sash windows. Vertical sliding secondary glazing systems for box sash windows provide advantages including maintaining the design of the existing sashes, improved thermal insulation, and enhanced noise reduction.

Secondary glazing for sash windows is popular in Northamptonshire. From the outside, you can’t see the difference but inside, you’ll be cosy and warm.

secondary glazing on sash window
secondary glazing in bedroom (2)

Hinged Secondary Double Glazing Systems

Hinged secondary glazing systems open like the normal casement window, you see on most houses. These are always lined up with the existing windows so that you can easily access he existing windows to open or clean them.

By creating an extra layer of protection between your home and the outside elements, these systems help keep your home warmer in the winter and cooler in the summer. This can lead to reduced energy bills and a more comfortable living environment for you and your family.

Secondary Glazing Gallery

350 x 250 Windows - uPVC double glazed windows


350 x 250 Doors - Chartwell Green with side panels



Conservatory Roofs - solid tile


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