Highlands & Islands · Scotland

Secondary Glazing in Highlands & Islands

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

Guide from £465
9 towns covered
Postcode areas AB, HS, IV, KW, PH, ZE

Internal secondary windows across Highlands & Islands

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.

A low-emissivity coating on the secondary glass reflects heat back into the room and improves the insulation of the combined window. It is a useful choice for single-glazed sash and casement windows where the originals must be kept for character or planning reasons.

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.

The price of secondary glazing depends on the size and number of windows, the opening style, the glass specification, any shaped or arched heads, reveal depth and condition, and access. Acoustic laminated glass and shaped frames cost more than standard clear glass in rectangular frames.

Sash window with secondary glazing in a period sitting room

Towns we cover for secondary glazing in Highlands & Islands

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

What applies in Highlands & Islands

Section 4 (Safety) of the Scottish Technical Handbooks covers glazing that people could collide with, such as glass in and beside doors and low-level glazing, where safety glass is needed.

Listed buildings in Scotland need listed building consent for most changes to historic windows; Historic Environment Scotland publishes guidance on traditional windows.

Highlands & Islands has its own coastline, so for homes and businesses near the sea, salt air and wind-driven rain are part of the brief. Coastal properties often have older windows exposed to wind-driven rain and draughts. Secondary glazing adds a sealed inner layer that reduces draughts and cold, while the original window keeps out the weather and its condition is protected from inside.

Rural cottages and period homes often have single-glazed timber windows that cannot easily be replaced. Secondary glazing reduces draughts and heat loss in exposed locations, and the surveyor allows for uneven reveals and older plaster when fixing frames.

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 job	Guide 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.

Vertical sliding

Panels slide up and down, with meeting rails aligned to sash windows so the secondary unit is discreet from inside and outside.

Horizontal sliding

Panels slide sideways, suiting wide casement windows and openings where you need regular access for cleaning or ventilation.

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 Highlands & Islands: questions

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.

Will secondary glazing cause condensation?

It can, if the original window is sealed tighter than the secondary unit, because warm, moist room air then gets trapped in the cavity. The secondary unit should be the more airtight of the two, and the original window should not be fully sealed. Opening the secondary panel lets room air into the cavity, so close it again afterwards.

Is secondary glazing suitable for rented homes and flats?

Yes. Secondary glazing is fitted inside, so it often avoids the external changes that leases, freeholders or planning rules restrict. It can be removed later with limited making good. Leaseholders should still check their lease for any rules on internal alterations, and landlords should check escape routes are not affected.

Which opening style should I choose?

Choose based on how you use the window. Vertical sliders suit sash windows and keep meeting rails aligned. Horizontal sliders suit wide windows. Hinged panels give full access for cleaning and escape. Lift-out and fixed panels suit windows that are rarely or never opened, and give the tightest seal for noise.

Which parts of Highlands & Islands do you cover for secondary glazing?

We cover the whole of Highlands & Islands, including Inverness, Elgin, Fort William, Nairn and Forres, and postcode areas AB, HS, IV, KW, PH, ZE. Building rules for secondary glazing here follow the regulations for Scotland. 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.

Other glazing services in Highlands & Islands

All glazing in Highlands & Islands · Secondary Glazing across the UK

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