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UK Wide

Our nationwide team specialise in the maintenance, repair and refurbishment of commercial glazed building envelopes for commercial clients.

Expert Team

Our management team brings over 28 years of combined experience delivering specialist glazing solutions in difficult access areas.

Documented Work

Projects are documented photographically to visualise rectification works step by step so clients understand the glazing systems and future servicing needs.

Full Guarantee

We are one of few companies to offer Insurance Backed Guarantees, often requested by developers and large FM companies.

Commercial Secondary Glazing Installation

We carry out commercial secondary glazing installations for facilities managers, building owners, architects, main contractors, and heritage property managers. Our work covers a wide range of commercial settings, including offices, hotels, schools, libraries, galleries, museums, healthcare facilities, and listed buildings.

Commercial secondary glazing services

Offering a bespoke design and installation service, we supply commercial secondary glazing to suit all window types and formats. Our units are designed to fit within existing primary window frames without compromising the detailing of original glazing bars. This makes secondary glazing particularly well-suited to listed buildings, heritage properties, and conservation areas, where full window replacement is either restricted or undesirable.

Units are manufactured from high-quality components and supplied fully assembled for a clean and inconspicuous installation. The original fabric of the building is maintained throughout. Installations are non-invasive and reversible, with easy access for cleaning and ventilation maintained where required.

From initial consultation through to project completion, clients receive a quality service with full project management and a clear quotation from the outset.

Types of commercial secondary glazing we supply and install:

  • Horizontal sliding panels The most versatile option, suitable for most commercial window types.
  • Vertical sliding panels Designed to replicate the appearance and operation of traditional sash windows.
  • Hinged casement units Well-suited to commercial settings where easy access and cleaning are priorities.
  • Lift-out panels A cost-effective solution for windows where regular opening is not required.
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What can you expect of our commercial secondary glazing?

Acoustic insulation

All of our secondary glazing units provide excellent levels of acoustic insulation, forming a highly effective barrier against external noise. This includes the reduction of traffic noise, aircraft noise, and general urban noise pollution. Secondary glazing offers superior acoustic performance compared to standard double glazing, making it a practical choice for offices, libraries, galleries, museums, hotels, schools, and healthcare facilities in noise-sensitive locations.

Thermal insulation

Commercial secondary glazing significantly improves the thermal performance of existing windows. It creates a tighter seal that reduces heat loss, helping to lower energy consumption and heating costs across the building. Thermal efficiency improvements of up to 60% are achievable, making secondary glazing one of the most cost-effective energy efficiency upgrades available for existing commercial buildings.

Security

Commercial secondary glazing adds an additional layer of physical security to existing windows. It forms an extra barrier against forced entry, helping to safeguard building occupants, equipment, and valuables. Security performance can be specified to meet the requirements of individual buildings, from standard commercial premises through to higher-risk environments.

Here are some other benefits of commercial secondary glazing:

  • Effective reduction of condensation on primary glazing.
  • Preservation of building character, with discreet installations that have minimal visual impact internally and externally.
  • Suitability for listed buildings and conservation areas, where full window replacement is often not permitted.
  • Reduction of heating costs without the disruption and expense of replacing existing windows.
  • Non-invasive and reversible installation, with no damage to existing windows or the building fabric.
  • Ventilation access maintained, with units designed for straightforward opening, cleaning, and operation.
  • A sustainable alternative to full window replacement, avoiding the environmental impact of new window production and disposal.
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Commercial Secondary Glazing FAQs

Is secondary glazing suitable for listed buildings and conservation areas?
Yes. Secondary glazing is one of the most widely used solutions for listed buildings and conservation areas, where planning and heritage requirements often restrict full window replacement. Our units fit within existing frames without altering the primary window or the building fabric, and installations are fully reversible.

How much noise can commercial secondary glazing reduce?
Acoustic performance depends on the specification of the units and the air gap between the primary and secondary glazing. Secondary glazing is widely recognised as one of the most effective noise reduction solutions for existing buildings, offering significantly better acoustic performance than standard double glazing.

Can secondary glazing be installed without disrupting building operations?
Yes. Our installation process is designed to minimise disruption. Units are manufactured to size and supplied fully assembled, which keeps installation time to a minimum. We work around building occupiers and can carry out installations outside of standard hours where required.

What types of windows can secondary glazing be fitted to?
Secondary glazing can be fitted to almost all commercial window types, including single-glazed sash windows, steel-framed windows, timber-framed windows, and large-format commercial windows. We carry out an initial survey to confirm the most suitable unit type and specification for each window.

Is commercial secondary glazing reversible?
Yes. Our units are non-invasive and reversible. They are fitted within the existing window reveal without permanently altering the primary window frame. This is a particularly important consideration for listed buildings and conservation areas.

What is the difference between secondary glazing and double glazing?
Double glazing replaces the existing window with a sealed double-glazed unit. Secondary glazing adds a separate inner pane to the existing window. Secondary glazing is often the preferred option for heritage and listed buildings, and typically offers superior acoustic performance compared to standard double glazing.

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Have a project in mind? Get in touch and we’ll provide a no obligation quote and free site survey.