Alu-clad timber windows · Cornwall
Alu-clad timber triple glazed windows in Penzance
Alu-clad timber triple glazed windows for homes in Penzance: measured on a free survey, made to order and fitted by installation teams working for us across Cornwall.

Timber inside, aluminium outside, three panes of glass between. 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.
Winter light and glass choice in Penzance
Winter days in Penzance are short: about 8 h 03 min of daylight on 21 December, with the sun peaking near 16°. That low angle reaches deep into south-facing rooms, so we match the glass to each elevation rather than using one spec for the whole house.
Guide prices in Penzance
| Guide | Supply and fit, inc VAT |
|---|---|
| Small window about 600 x 1000 mm (bathroom, landing) | £1,395 – £1,795 |
| Medium window about 1200 x 1200 mm (bedroom) | £1,895 – £2,395 |
| Large window about 1800 x 1200 mm (lounge) | £2,995 – £3,695 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for alu-clad timber windows in England
The rules for replacement windows in England are set by Approved Document L (2021 edition, with 2023 amendments): 1.4 W/m²K, or a Window Energy Rating of band B or better. Replacement windows are a controlled fitting. A competent person scheme installer (such as FENSA or Certass) self-certifies the work and notifies the council within 30 days; otherwise a building control body approves it.
Planning: Replacing windows on a house is normally permitted development if the new ones look similar. New upper-floor windows in a side wall must be obscure glazed and fixed, or open only above 1.7 m. Flats and maisonettes have no householder permitted development rights, so a change that alters their appearance needs planning permission. An Article 4 direction in a conservation area may mean permission is needed, and listed buildings need listed building consent.
How it works
After the free survey you get a written quote naming the frame system, the glass build-up and the whole-window U-value for every item. Windows are made to order, then fitted, sealed and made good, one opening at a time.
- Every opening measured, including escape and vent needs
- Frames rated for the weight of triple glass
- Old windows removed and taken away
- Each opening closed up the same day
Questions from Penzance
How long do alu-clad windows take to make?
Typically 8 to 12 weeks from survey, sometimes longer for big projects.
Can I choose different colours inside and out?
Yes. The aluminium can be any RAL colour and the timber inside can be natural, stained or painted.
Do you fit alu-clad timber triple glazed windows in Penzance?
Yes. We arrange surveys and fitting in Penzance and across Cornwall. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
How long does it take to get alu-clad timber triple glazed windows fitted in Penzance?
After the survey, typical manufacture time is 8 to 12 weeks, and most homes are fitted in 1 to 4 days.
Nearby
Also near Penzance: Camborne (20 km), Redruth (26 km), Falmouth (34 km) and Truro (38 km).
Other products in Penzance
- 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 in Penzance: book your free survey
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 England.
