Alu-clad timber windows · Wales
Alu-clad timber triple glazed windows in South Glamorgan
We survey and fit alu-clad timber triple glazed windows across South Glamorgan, from Cardiff and Barry to smaller towns such as Llantwit Major.

The low-upkeep, high-performance frame many self-builders choose. Alu-clad (aluminium-clad) timber windows have a structural timber frame inside and a powder-coated aluminium cladding outside, glazed with a three-pane unit.
Guide prices across South Glamorgan
Small window
about 600 x 1000 mm (bathroom, landing)
£1,395 – £1,795inc VAT · £1,160 – £1,495 ex VAT
- Alu-clad timber frame, triple glazed, warm-edge spacers
- Removal and disposal of the old window
- Fitted, sealed and made good inside and out
Medium window
about 1200 x 1200 mm (bedroom)
£1,895 – £2,395inc VAT · £1,580 – £1,995 ex VAT
- Alu-clad timber frame, triple glazed, warm-edge spacers
- Removal and disposal of the old window
- Fitted, sealed and made good inside and out
Large window
about 1800 x 1200 mm (lounge)
£2,995 – £3,695inc VAT · £2,495 – £3,080 ex VAT
- Alu-clad timber frame, triple glazed, warm-edge spacers
- Removal and disposal of the old window
- Fitted, sealed and made good inside and out
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
Wales requires replacement windows to achieve 1.4 W/m²K, or a Window Energy Rating of band B or better, which good triple glazing passes comfortably. As in England, replacement windows are a controlled fitting: a competent person scheme installer self-certifies the work, or building control approves it.
Before ordering: 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
Is alu-clad timber worth the extra cost?
It is for many self-builders and people planning to stay for decades, because the outside needs almost no upkeep and the timber inside looks warm. For a quick replacement on a typical semi, uPVC or aluminium give better value.
How long do alu-clad windows take to make?
Typically 8 to 12 weeks from survey, sometimes longer for big projects.
Do alu-clad windows suit Passivhaus builds?
Many alu-clad systems are designed for low-energy homes. If you need Passive House Institute certified components, ask and we will price systems that hold that certification.
Do you cover all of South Glamorgan?
We arrange surveys and fitting across South Glamorgan.
Do I need permission for alu-clad timber triple glazed windows in Wales?
In Wales, householder rules do not cover flats, councils can use Article 4 directions, and listed buildings need consent.
Alu-clad timber windows in nearby areas of Wales
Other products in South Glamorgan
- uPVC windows
- Aluminium windows
- 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
- Flats and apartments
- Passivhaus and EnerPHit
Alu-clad timber windows 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.
