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Bay and bow windows · Kent

Triple glazed bay and bow windows in Dartford

Homes in Dartford can have triple glazed bay and bow windows supplied and fitted, with surveys arranged across Kent including DA1.

DA1Postcode district
1.4U-value limit, England (W/m²K)
7h 50mDaylight, 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 Dartford

In Dartford, midday sun in late December sits around 15° high, with roughly 7 h 50 min of daylight. For windows facing north or shaded by neighbours, cutting heat loss matters more than solar gain; on open south-facing glass, ask about a higher solar-gain unit.

Guide prices in Dartford

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

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.

  • 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 from Dartford

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.

Do you fit triple glazed bay and bow windows in Dartford?

Yes. We arrange surveys and fitting in Dartford and across Kent. 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 triple glazed bay and bow windows fitted in Dartford?

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

Nearby

Nearby towns on our list include Bexley (5 km), Swanley (6 km), Welling (8 km) and South Ockendon (8 km).

Other products in Dartford

Bay and bow windows in Dartford: 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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