Flats and apartments · Wales
Triple glazing for flats and apartments in South Glamorgan
Homes across South Glamorgan, including Cardiff, Barry and Llantwit Major, can have flat and apartment triple glazing measured, made to order and fitted.
Quieter, warmer flats, fitted from inside where possible. Before replacing windows in a flat, check two things.
Guide prices across South Glamorgan
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
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.
Towns in South Glamorgan
Rules in Wales
The rules for replacement windows in Wales are set by Approved Document L for Wales (2022 edition, with 2024 amendments): 1.4 W/m²K, or a Window Energy Rating of band B or better. As in England, replacement windows are a controlled fitting: a competent person scheme installer self-certifies the work, or building control approves it.
Planning: Householder permitted development rules do not cover flats, and councils can remove rights with Article 4 directions. Listed buildings need listed building consent. Check with your council before changing the style or material.
How it works
We start with a survey, not a sales pitch: measurements, the structure above any bays, trickle-vent needs and escape windows. The quote that follows fixes the price, and anything unexpected on the day is agreed with you first.
- Guide prices published, not hidden
- No pressure: the quote is yours to keep
- Frames, glass and fitting in one contract
- Advice on planning and consents before you order
Questions
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.
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).
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.
Do you cover all of South Glamorgan?
We arrange surveys and fitting across South Glamorgan.
Do I need permission for flat and apartment triple glazing in Wales?
In Wales, householder rules do not cover flats, councils can use Article 4 directions, and listed buildings need consent.
Flats and apartments in nearby areas of Wales
Other products in South Glamorgan
- uPVC windows
- Aluminium windows
- Timber windows
- Alu-clad timber windows
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Bay and bow windows
- Fixed and picture windows
- Composite front doors
- French doors
- Sliding patio doors
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Passivhaus and EnerPHit
Flats and apartments across South Glamorgan
Written quote fixed for the specification, after a free survey. Building Regulations sign-off by a competent person scheme installer or building control, as the law requires in Wales.