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Secondary Window Soundproofing & Insulation

Discreet Window Soundproofing and Insulation for Every Home

Enhance comfort and efficiency without changing the character of your home with Safe-Guard’s Secondary Glazing systems. Designed to sit neatly behind existing windows, secondary glazing provides an extra layer of insulation, reduces noise, and improves energy performance, all while preserving the original appearance of your property.

Perfect for listed buildings, heritage homes, and conservation areas, this is an elegant and cost-effective way to enjoy the benefits of double glazing where replacement windows aren’t possible.

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The Benefits of Secondary Glazing

SafeGuard’s Secondary Glazing combines subtle design with impressive performance

  • Improved thermal efficiency – Retain heat and reduce energy costs by adding an extra insulating barrier.
  • Effective soundproofing – Minimise noise from traffic, trains, or neighbours for a quieter home.
  • Ideal for heritage properties – Suitable for listed buildings and conservation areas where window replacement is restricted.
  • Discreet installation – Fits neatly behind your existing windows with minimal visual impact.
  • Added security – Provides an extra layer of protection against forced entry.
  • Low maintenance – Durable materials and easy-clean designs for everyday convenience.
  • 10 Year Warranty

This smart solution offers the benefits of modern glazing with the charm of traditional windows.

Design & Performance

Modern Performance, Timeless Window Design

Our secondary glazing systems are made from high-quality aluminium with slimline frames that blend naturally with your existing décor. They’re available in horizontal sliders, vertical sliders, lift-out, or hinged configurations, allowing for ventilation, cleaning access, and ease of use.

Combined with precision-sealed glazing, this design significantly reduces draughts and condensation while maintaining clear sightlines and smooth operation.

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Finishes & Options

Customise your secondary glazing to complement your property:

  • A choice of frame colours to match your interior
  • Toughened, laminated, or acoustic glass options
  • Low-E and solar-control coatings for enhanced performance
  • Sliding, hinged, or lift-out designs
  • Custom shapes for arches, bays, or unique window styles

Each system is bespoke-made in our Peterborough facility, ensuring a perfect fit and consistent performance.

Installed by Safeguard

All units are manufactured in-house at our Peterborough facility

At SafeGuard, we design, manufacture, and install secondary glazing systems across Peterborough, South Lincolnshire, Rutland, Cambridgeshire, Northamptonshire, Nottinghamshire, and surrounding regions.

Our experienced team will assess your property, measure every opening precisely, and create bespoke panels that fit seamlessly into your existing window frames. All systems are made to order, ensuring excellent thermal and acoustic performance while maintaining the look and feel of your original windows.

With in-house manufacturing and expert installation, you can expect long-lasting results and exceptional value.

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Visit Our Peterborough Showroom

Want to see products up close, choose finishes and talk through your options face-to-face?

Visit our Peterborough showroom, explore full-size displays, view materials, and speak with our glazing experts. book your visit in advance or just drop in during opening hours.

Planning your next home improvement or self-build projects?

Get in touch with the team today on 01733 555040

or request a call back

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