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GGL SD5W1

GGL SD5W1
10 % off

Velux GGL 3550 Roof Window + EDW flashing for tiles up to 120mm in profile (min 15° roof pitch).

Velux Conservation roof windows. All the same superior technological features of a Velux window but in a traditional black conservation style.

GGL SD5W1

more options ▼ 1Window Size need help?

  • ck04 CK04 (mfd Feb 2014 - 2024)£573.48 £637.20
  • ck06 CK06 (mfd Feb 2014 - 2024)£595.08 £661.20
  • fk06 FK06 (mfd Feb 2014 - 2024)£659.88 £733.20
  • mk06 MK06 (mfd Feb 2014 - 2024)£696.60 £774.00
  • mk08 MK08 (mfd Feb 2014 - 2024)£752.76 £836.40
  • uk04 UK04 (mfd Feb 2014 - 2024)£876.96 £974.40

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Help & Useful Information

How do I find which Window Type I have?

VELUX Type Signs (Data plate) explained

Every VELUX roof window carries a unique Type Sign that details the type and size of the window. In most cases the Type Sign is located at the top right-hand of the sash, behind the control bar.

Type Signs differ in appearance depending on the model of your VELUX window. Please identify and select the version of Type Sign on your window from the illustrations below:

Step 1 - Locating the type sign.

In most cases the Type Sign is located at the top right-hand of the sash, behind the control bar.

Locating the Velux Type Sign

Step 2 - Finding the codes.

Depending on the year your window was produced you'll find one of the type signs listed below.

Roof Windows delivered after 01 April 2001 can be recognised by a grey coloured type sign with the type being three letters (e.g. GGL) and a size code made up of one letter combined with two numbers (e.g. GGL-M08)
Find code in pre 1991 windows
Roof Windows delivered from 01 April 1991 to 01 April 2001 can be recognised by a golden type sign with the type being three letters (e.g. GGL) and a size code made up of three numbers (e.g. GGL 308)
Roof Windows delivered before 01 April 1991 can be recognised by a silver sign with the type being three letters (e.g. GHL) and size code made up of a numbers 1 - 14 (e.g. GHL 2)