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Alu-clad timber windows · Greater London

Alu-clad timber triple glazed windows in Coulsdon

From the first measure to the handover pack, we handle alu-clad timber triple glazed windows for homes in Coulsdon and the rest of Greater London.

CR5Postcode district
1.4U-value limit, England (W/m²K)
7h 52mDaylight, 21 Dec
15°Midday sun, 21 Dec
Large oak-framed window with a built-in window seat looking over fields

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.

Winter light and glass choice in Coulsdon

On the shortest day, Coulsdon gets about 7 h 52 min of daylight and the midday sun reaches only about 15° above the horizon. Low winter sun means north-facing rooms here gain little solar heat, which is where triple glazing’s lower heat loss helps most.

Guide prices in Coulsdon

GuideSupply 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.

Before ordering: 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

You will know exactly what you are buying: the quote states the unit build-up, frame, finish, fitting work and how Building Regulations compliance is handled. On fitting day each opening is replaced and closed up before the team moves on.

  • 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 from Coulsdon

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 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.

How long does it take to get alu-clad timber triple glazed windows fitted in Coulsdon?

After the survey, typical manufacture time is 8 to 12 weeks, and most homes are fitted in 1 to 4 days.

Do I need permission for alu-clad timber triple glazed windows in Coulsdon?

In England, like-for-like replacements on a house are normally permitted development; flats need permission if the change alters their appearance, Article 4 areas may need permission, and listed buildings need listed building consent. Check whether your street is in a conservation area or covered by an Article 4 direction before changing the style.

Nearby

Nearby towns on our list include Purley (3 km), Banstead (5 km), Wallington (5 km) and Sutton (5 km).

Other products in Coulsdon

Alu-clad timber windows in Coulsdon: 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.

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