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Sash windows · Kent

Triple glazed sash windows in Margate

Looking at triple glazed sash windows for a home in Margate? We survey, quote and fit across Kent, and the CT9 postcode district is part of that.

CT9Postcode district
1.4U-value limit, England (W/m²K)
7h 51mDaylight, 21 Dec
15°Midday sun, 21 Dec
White vertical sliding sash windows on a Victorian London terrace

Honest advice on which sashes can take a full triple unit. A sash window has one or two sashes that slide up and down in a box frame.

Winter light and glass choice in Margate

In Margate, midday sun in late December sits around 15° high, with roughly 7 h 51 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 Margate

GuideSupply and fit, inc VAT
Small window
about 600 x 1000 mm (bathroom, landing)
£1,295 – £1,595
Medium window
about 1200 x 1200 mm (bedroom)
£1,695 – £2,095
Large window
about 1800 x 1200 mm (lounge)
£2,595 – £3,195

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

Rules for sash 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.

Before ordering: 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 Margate

Can I keep my original sash boxes?

Sometimes. A timber specialist can fit new sashes into sound original boxes, but the glass thickness is limited by the sash depth.

How much do triple glazed sash windows cost?

Our guide starts at £1,295 for a small uPVC sash, fitted and inc VAT. Timber sashes cost more; UK quotes for timber triple sashes run past £3,000 each.

Do I need permission for triple glazed sash windows in Margate?

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 sash windows fitted in Margate?

After the survey, typical manufacture time is 6 to 10 weeks, and most homes are fitted in 1 to 4 days.

Nearby

Nearby towns on our list include Broadstairs (5 km), Ramsgate (6 km), Deal (18 km) and Herne Bay (18 km).

Other products in Margate

Sash windows in Margate: 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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