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Leicestershire · England

Secondary Glazing in Leicestershire

Where planning or lease rules limit changes to the outside, secondary glazing in Leicestershire offers an internal option that can be removed later.

  • Guide from £465
  • 8 towns covered
  • Postcode areas CV, DE, LE

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About secondary glazing for sash windows in Leicestershire

Slim aluminium frames are designed to sit within the window reveal and line up with the original glazing bars or meeting rails. Matching sightlines keeps the secondary unit discreet from outside and inside, which matters for period homes and conservation areas.

If an existing window is relied on for escape in a fire, the secondary glazing in front of it must open easily and give enough clear opening. The surveyor checks which windows are escape windows, so the opening style and catches do not block a way out.

Secondary glazing can also add security, because an intruder would have to break through two separate windows. Laminated glass and locking catches on the secondary unit add further resistance, which is useful for ground-floor and basement windows in period properties.

Opening styles include vertical sliders that line up with sash window meeting rails, horizontal sliders for wide openings, hinged casements, lift-out panels for windows that are rarely opened, and fixed panes. The choice depends on how you use the window, cleaning access and fire escape needs.

Sash window with secondary glazing in a period sitting room

Towns we cover for secondary glazing in Leicestershire

Choose your town for local details, nearby areas and the postcode districts we cover.

What applies in Leicestershire

Approved Document K requires safety glass in critical locations in England: glazing in doors and in side panels within 300 mm of a door, up to 1500 mm above floor level, and any glazing in walls or partitions up to 800 mm above floor level.

Listed buildings in England need listed building consent for most changes to historic windows or glass, and conservation areas can restrict changes visible from the street. Speak to the council's conservation officer before ordering.

Leicestershire is inland, around 63 km from the nearest coast at its closest point, so salt exposure is rarely a factor.

In city centres and busy streets, acoustic secondary glazing is a common response to traffic, rail and nightlife noise. Flats, listed buildings and conservation areas often limit external changes, which makes internal secondary glazing a practical option.

Guide prices

Guide prices inc VAT for typical jobs. Remote and island locations are quoted by arrangement. Your written quote fixes the price after measuring.
Typical jobGuide price inc VAT
Slider, 900 × 1200 mm£465 – £595
Slider, 1200 × 1600 mm£665 – £845
Acoustic glass, 1000 × 1400 mm£675 – £865

Choosing your secondary glazing

Low-E glass

Coated glass that reflects heat back into the room, improving insulation when the original window is single glazed.

Acoustic laminated glass

Laminated glass with a sound-dampening interlayer, combined with a generous cavity, for properties affected by traffic, rail or aircraft noise.

Fixed panel

A non-opening unit for windows never opened, giving the most airtight seal for noise and draught reduction.

Hinged casement

Panels open inwards like a door, giving full access to the original window, and can be chosen for escape windows.

Secondary Glazing in Leicestershire: questions

Can I still open my original windows?

Yes, as long as the secondary glazing has an opening panel in front of the part you need to open. Sliding and hinged panels give access to the original window for ventilation and cleaning. Lift-out and fixed panels suit windows you rarely or never open.

Does secondary glazing need safety glass?

It does in critical locations. In England, glass within 800mm of the floor, glass in doors and glass near doors are critical locations under Approved Document K, and these apply to secondary glazing too. Low-level secondary panes should be toughened or laminated safety glass. The surveyor checks each window during the survey.

Is secondary glazing as good as double glazing?

It depends on the goal. For noise, secondary glazing is often more effective, because the wider gap between the two windows reduces sound better than the narrow cavity of a sealed unit. For heat, a well-sealed secondary unit with low-E glass significantly improves a single-glazed window. It also keeps original windows, which matters in listed buildings.

How much noise does secondary glazing block?

Results depend on the size of the gap between the windows, the glass type and thickness, the seals and the original window. A larger cavity and acoustic laminated glass give the strongest improvement. The survey checks reveal depth and noise sources, so the specification can be tailored to the noise you are dealing with.

Which parts of Leicestershire do you cover for secondary glazing?

We cover the whole of Leicestershire, including Leicester, Loughborough, Hinckley, Coalville and Wigston Magna, and postcode areas CV, DE, LE. Building rules for secondary glazing here follow the regulations for England. Enter your postcode on the quote form and we will confirm cover; then a glazier will arrange a free survey before giving you a written quote.

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