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Fixed and picture windows · Hertfordshire

Triple glazed fixed and picture windows in Welwyn Garden City

Triple glazed fixed and picture windows for homes in Welwyn Garden City: measured on a free survey, made to order and fitted by installation teams working for us across Hertfordshire.

AL8Postcode district
1.4U-value limit, England (W/m²K)
7h 46mDaylight, 21 Dec
15°Midday sun, 21 Dec
Large fixed picture window framing a view of rolling countryside at sunset

Large fixed panes in triple glazing, with the lift planned. A fixed or picture window does not open; it is one large pane in a slim frame, used to frame a view or bring in light.

Winter light and glass choice in Welwyn Garden City

In Welwyn Garden City, midday sun in late December sits around 15° high, with roughly 7 h 46 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 Welwyn Garden City

GuideSupply and fit, inc VAT
Fixed window
uPVC, about 1500 x 1200 mm
£745 – £945
Large picture window
uPVC, about 2400 x 1500 mm
£1,295 – £1,695
Feature window
uPVC, about 3000 x 2000 mm, heavy lift
£2,295 – £2,895

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

Rules for fixed and picture windows 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.

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

We start with a survey, not a sales pitch: measurements, the structure above any bays, trickle-vent needs and escape windows. The quote that follows fixes the price, and anything unexpected on the day is agreed with you first.

  • 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 Welwyn Garden City

Can a fixed window be the escape window?

No. An escape window must open. We keep or add an opening window where one is needed.

How heavy is a large triple glazed pane?

Roughly 30 kg per square metre with 4 mm glass, more with thicker or laminated panes. A 3 m by 2 m unit can weigh around 180 kg.

Do I need permission for triple glazed fixed and picture windows in Welwyn Garden City?

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 fixed and picture windows fitted in Welwyn Garden City?

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

Nearby

We also cover nearby Hatfield (4 km), Hertford (9 km), St Albans (10 km) and Harpenden (10 km).

Other products in Welwyn Garden City

Fixed and picture windows in Welwyn Garden City: 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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