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Bay and bow windows · England

Triple glazed bay and bow windows in Bristol

We survey and fit triple glazed bay and bow windows across Bristol, with a free survey and a written quote fixed for the specification.

BS1Central postcode district
EnglandRules applied
1.4U-value limit (W/m²K)
5 to 8 weeksTypical lead time
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.

Guide prices across Bristol

3-light bay

three windows, about 2.7 m across

£2,995 – £3,795inc VAT · £2,495 – £3,160 ex VAT

  • Triple glazed throughout
  • Old frames removed and taken away
  • Fitted, sealed and made good
Typical size

5-light bay or bow

five windows, about 3.5 m across

£3,795 – £4,695inc VAT · £3,160 – £3,910 ex VAT

  • Triple glazed throughout
  • Old frames removed and taken away
  • Fitted, sealed and made good

Two-storey bay

ground and first-floor bays

£5,995 – £7,495inc VAT · £4,995 – £6,245 ex VAT

  • Triple glazed throughout
  • Old frames removed and taken away
  • Fitted, sealed and made good

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.

Rules in England

In England, replacement windows must meet 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.

  • Free survey and a written quote fixed for the specification
  • Glass build-up and whole-window U-value on every quote
  • Written handover pack at the end of the job
  • Guarantees on frames, units and fitting in writing

Questions

Do bay windows need bay poles?

If the old frames carry load from above, yes. We check on survey and include support in the quote where needed.

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.

How much does a triple glazed bay window cost?

Our guide starts at £2,995 for a three-light uPVC bay, fitted and inc VAT; UK quotes run from about £2,000 to £4,500.

Do you cover all of Bristol?

We arrange surveys and fitting across Bristol.

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

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.

Bay and bow windows in nearby areas of England

Other products in Bristol

Bay and bow windows across Bristol

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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