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Flush casement windows · Northamptonshire

Triple glazed flush casement windows in Kettering

Triple glazed flush casement windows for homes in Kettering: measured on a free survey, made to order and fitted by installation teams working for us across Northamptonshire.

NN16Postcode district
1.4U-value limit, England (W/m²K)
7h 40mDaylight, 21 Dec
14°Midday sun, 21 Dec
Sage green flush casement windows on a whitewashed English cottage

The neat, period look of timber casements with modern glass. 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 Kettering

On the shortest day, Kettering gets about 7 h 40 min of daylight and the midday sun reaches only about 14° 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 Kettering

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

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

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.

  • 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 Kettering

What colours are available?

Woodgrain foils and heritage colours in uPVC, and any paint colour in timber or RAL colour in aluminium.

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 Kettering?

Yes. We arrange surveys and fitting in Kettering and across Northamptonshire. 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 Kettering?

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

Nearby

We also cover nearby Wellingborough (11 km), Corby (11 km), Rushden (15 km) and Market Harborough (16 km).

Other products in Kettering

Flush casement windows in Kettering: 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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