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Flush casement windows · Kent

Triple glazed flush casement windows in Swanley

If you live in Swanley (BR8) and want triple glazed flush casement windows, start with a free survey: every opening measured, then a written quote that fixes the price.

BR8Postcode district
1.4U-value limit, England (W/m²K)
7h 50mDaylight, 21 Dec
15°Midday sun, 21 Dec
Sage green flush casement windows on a whitewashed English cottage

A softer, flatter face for cottages and older homes. A flush casement window has sashes that close flush with the outer frame instead of overlapping it, copying the look of traditional timber windows.

Winter light and glass choice in Swanley

By midsummer Swanley has about 16 h 37 min of daylight, but in December only around 7 h 50 min, with the noon sun at about 15°. Triple glazing keeps more heat in during those long, dark months; big south and west windows may suit solar-control glass for summer.

Guide prices in Swanley

GuideSupply and fit, inc VAT
Small window
about 600 x 1000 mm (bathroom, landing)
£845 – £1,095
Medium window
about 1200 x 1200 mm (bedroom)
£1,195 – £1,495
Large window
about 1800 x 1200 mm (lounge)
£1,795 – £2,195

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

Rules for flush casement windows 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

The surveyor measures every opening, checks ventilation, escape windows and safety-glass zones, and talks through styles. Your written quote lists each item with its glass build-up and U-value, and the price is fixed for that specification.

  • 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 Swanley

Can flush casements be triple glazed?

Yes. The frame depth and hardware are chosen for the unit weight; we confirm the exact unit on your quote.

Are flush casements more expensive?

Yes. Our guide puts them about 30% above a standard uPVC casement of the same size.

Do you fit triple glazed flush casement windows in Swanley?

Yes. We arrange surveys and fitting in Swanley 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 flush casement windows fitted in Swanley?

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

Nearby

Also near Swanley: Bexley (5 km), Dartford (6 km), Welling (9 km) and Eltham (10 km).

Other products in Swanley

Flush casement windows in Swanley: 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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