Projects

Triple glazing for flats and apartments

Before ordering windows for a flat, check two things: who controls the windows (the lease in England, Wales and Northern Ireland; the title deeds and any factor in Scotland), and whether your council needs a planning application, because flats do not have the same permitted development rights as houses. Tilt and turn windows suit flats because both sides of the glass can be cleaned from inside.

Lead time: 4 to 7 weeksGuide from: £945 inc VAT

Get a free quote Try the guide-price tool

Three-storey brick apartment block with uniform new grey windows

Summary

Before replacing windows in a flat, check two things. Planning: in England and Wales flats have no householder permitted development rights; in Scotland permission is generally needed only if the opening size changes or the flat is in a conservation area; in Northern Ireland, ask your council. Ownership: in England, Wales and Northern Ireland the lease usually needs the freeholder’s or managing agent’s consent; in Scotland, check your title deeds and any factor or owners’ association. Triple glazing suits flats on busy roads or upper floors, where windows are exposed to wind and noise.

What you get

Consents	Lease or title deeds checked; planning checked with the council
Access	Fitted from inside where possible
Styles	Tilt and turn, casement, fixed
Glass	Triple, with acoustic options for busy streets
Look	Matched to the rest of the block where the lease requires
Typical lead time	4 to 7 weeks

Guide prices

Guide prices for typical projects; your quote is built from your own survey or drawings.

One window

medium uPVC window, fitted from inside

£945 – £1,195inc VAT · £790 – £995 ex VAT

Fitted from inside where access allows
Old frame removed and taken away
Made good inside

Typical project

2-bed flat

5 medium windows

£4,595 – £5,695inc VAT · £3,830 – £4,745 ex VAT

One visit, usually one day
Consent paperwork list provided
Made good inside

2-bed flat, aluminium

5 medium windows

£7,495 – £9,295inc VAT · £6,245 – £7,745 ex VAT

Slim frames to match the block
Consent paperwork list provided
Made good inside

Guide prices, supply and fit. The written quote after your survey fixes the price for the specification shown; anything extra is agreed with you first.

Is it right for your home?

A good fit for

Flats on main roads or near rail lines
Upper floors exposed to wind
Leaseholders replacing failed windows

Think twice if

Blocks where the freeholder replaces all windows at once
Higher-risk buildings, where extra rules apply

Options

Tilt and turn for cleaning from inside
Acoustic glass
Restrictors on upper floors
Frames matched to the block
Consent paperwork pack

Leases, title deeds and consent

In England, Wales and Northern Ireland, many leases say the window frames belong to the building, not the flat. Even where they are yours, the lease often requires the freeholder’s consent and may specify colour and style. In Scotland flats are owned outright, but the title deeds or the tenement’s management rules can still control the look of windows, and a factor or owners’ association may need to agree. We give you the specification and drawings to send to whoever needs to approve them.

Planning for flats

In England, permitted development rights for householders do not apply to flats and maisonettes, so a change of window style, material or colour can need planning permission. Wales applies the same principle. In Scotland, flats outside conservation areas generally need permission only if the opening size changes. In Northern Ireland, ask your council. Check with your council before ordering.

Building Regulations by nation

Nation	Replacement windows	Sign-off
England	1.4 W/m²K, or a Window Energy Rating of band B or better	Competent person scheme or building control
Wales	1.4 W/m²K, or a Window Energy Rating of band B or better	Competent person scheme or building control
Scotland	1.6 W/m²K	No building warrant for a straight replacement; must meet the standards
Northern Ireland	1.6 W/m²K, or a Window Energy Rating of band C or better	No building notice for a straight replacement; must comply

Full regulations guide, with sources →

Questions about flats and apartments

Do I need permission to replace windows in my flat?

Often, yes. In England and Wales flats have no householder permitted development rights, so check with the council; in Scotland permission is generally needed only if the opening size changes or the flat is in a conservation area; in Northern Ireland ask your council. Separately, check your lease (England, Wales and Northern Ireland) or title deeds and factor (Scotland).

Can windows in a flat be fitted from inside?

Often yes, which avoids scaffolding. It depends on the window design and access, checked on survey.

Is triple glazing good for a flat on a busy road?

Yes, especially with an acoustic laminated pane, which makes the bigger difference to noise.

What about tall blocks?

Higher-risk buildings (18 m or 7 storeys and over in England) have extra building safety requirements. Talk to your building’s accountable person first.

Flats and apartments by area

Wales

Scotland

Northern Ireland

Free quote: flats and apartments

Free survey · written quote, no obligation

Flats and apartments: get your guide price

Use the guide-price tool, or book a free survey for a written quote that fixes the price.

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Triple glazing for flats and apartments

Summary

What you get