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Flats and apartments · Kent

Triple glazing for flats and apartments in Dartford

Flat and apartment triple glazing for homes in Dartford: measured on a free survey, made to order and fitted by installation teams working for us across Kent.

DA1Postcode district
1.4U-value limit, England (W/m²K)
7h 50mDaylight, 21 Dec
15°Midday sun, 21 Dec
Three-storey brick apartment block with uniform new grey windows

Quieter, warmer flats, fitted from inside where possible. Before replacing windows in a flat, check two things.

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
One window
medium uPVC window, fitted from inside
£945 – £1,195
2-bed flat
5 medium windows
£4,595 – £5,695
2-bed flat, aluminium
5 medium windows
£7,495 – £9,295

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

Rules for flats and apartments in England

England requires replacement windows to achieve 1.4 W/m²K, or a Window Energy Rating of band B or better, which good triple glazing passes comfortably. 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

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 I need permission to replace windows in my flat?

Often, yes. In England and Wales flats have no householder permitted development rights, so check with the council; in Scotland permission is generally needed only if the opening size changes or the flat is in a conservation area; in Northern Ireland ask your council. Separately, check your lease (England, Wales and Northern Ireland) or title deeds and factor (Scotland).

Can windows in a flat be fitted from inside?

Often yes, which avoids scaffolding. It depends on the window design and access, checked on survey.

How long does it take to get flat and apartment triple glazing fitted in Dartford?

After the survey, typical manufacture time is 4 to 7 weeks, and most homes are fitted in 1 to 4 days.

Do you fit flat and apartment triple glazing 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.

Nearby

We also cover nearby Bexley (5 km), Swanley (6 km), Welling (8 km) and South Ockendon (8 km).

Other products in Dartford

Flats and apartments 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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