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Bay and bow windows · Greater London

Triple glazed bay and bow windows in Acton

Looking at triple glazed bay and bow windows for a home in Acton? We survey, quote and fit across Greater London, and the W3 postcode district is part of that.

W3Postcode district
1.4U-value limit, England (W/m²K)
7h 49mDaylight, 21 Dec
15°Midday sun, 21 Dec
1930s semi-detached house with white two-storey bay windows

Coupled triple glazed frames with bay poles where the load needs them. A bay window projects out from the wall in angled sections; a bow window curves in more, shallower sections.

Winter light and glass choice in Acton

Winter days in Acton are short: about 7 h 49 min of daylight on 21 December, with the sun peaking near 15°. 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 Acton

GuideSupply and fit, inc VAT
3-light bay
three windows, about 2.7 m across
£2,995 – £3,795
5-light bay or bow
five windows, about 3.5 m across
£3,795 – £4,695
Two-storey bay
ground and first-floor bays
£5,995 – £7,495

Guide prices. Your written quote after the free survey fixes the price for the specification shown.

Rules for bay and bow 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

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.

  • 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 Acton

Can I change a bay to a flat window?

That is a structural and planning change, not a like-for-like replacement. Ask and we will explain what it involves.

Will the bay be warmer?

Yes. Replacing old double or single glazing in a bay with triple glazing cuts heat loss through the glass and makes the glass surface warmer, so the room feels less draughty.

Do I need permission for triple glazed bay and bow windows in Acton?

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.

How long does it take to get triple glazed bay and bow windows fitted in Acton?

After the survey, typical manufacture time is 5 to 8 weeks, and most homes are fitted in 1 to 4 days.

Nearby

Also near Acton: Chiswick (2 km), Shepherd's Bush (4 km), Willesden (4 km) and Barnes (4 km).

Other products in Acton

Bay and bow windows in Acton: 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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