Doors
Triple glazed composite front doors
The door leaf of a good composite door already insulates well; the glass panels are the weak spot. Triple glazed panels warm up the hallway and cut draughts around the door. Most composite doors are tested to the PAS 24 security standard, and we specify the lock and cylinder on your quote.
Summary
A composite front door has a solid insulated core, usually timber or foam, under a tough glass-reinforced plastic (GRP) skin, with a multi-point lock. Triple glazed composite doors use three-pane units in the glazed panels and side lights, which is where a door loses most heat.
What you get
| Leaf | GRP skin over an insulated solid core |
|---|---|
| Glazing | Triple glazed decorative or obscure panels |
| Locking | Multi-point lock, anti-snap cylinder |
| Security | PAS 24 tested doorsets specified |
| Colours | Wide range, different colour inside and out |
| Typical lead time | 4 to 6 weeks |
Guide prices
Guide prices for supply and fitting, including removal of the old door.
Single composite door
standard size, glazed panel
£1,395 – £1,695inc VAT · £1,160 – £1,410 ex VAT
- Triple glazed panels
- Removal of the old door or window
- Fitted, sealed and finished
Door with one side panel
up to about 1.4 m wide
£1,995 – £2,495inc VAT · £1,660 – £2,080 ex VAT
- Triple glazed panels
- Removal of the old door or window
- Fitted, sealed and finished
Door with two side panels
up to about 2 m wide
£2,795 – £3,495inc VAT · £2,330 – £2,910 ex VAT
- Triple glazed panels
- Removal of the old door or window
- Fitted, sealed and finished
Guide prices, supply and fit. The written quote after your survey fixes the price for the specification shown; anything extra is agreed with you first.
Is it right for your home?
A good fit for
- Cold, draughty hallways
- Replacing tired uPVC or timber front doors
- Doors with side panels, where triple glass matters most
Think twice if
- Listed homes, where a timber door is usually required
- Very wide openings, which may need a bespoke door
Options
- Side panels and fanlights
- Obscure and decorative glass
- Letterplates, knockers and bar handles
- Different colour inside and out
- Low-threshold options
Doors and Building Regulations
In England, a replacement external door must achieve a U-value of 1.4 W/m²K or meet a door set energy rating (band B for doors up to 60% glazed, band C for more heavily glazed doors). Composite doors with triple glazed panels sit comfortably inside that. Scotland and Northern Ireland use their own figures, shown on the regulations guide.
Security
We specify doorsets tested to PAS 24 with anti-snap cylinders. The exact lock, cylinder and hinge spec is written on your quote.
Building Regulations by nation
| Nation | Replacement doors | Sign-off |
|---|---|---|
| England | 1.4 W/m²K, or a door set energy rating of band C (more than 60% glazed) or band B (other doors) | Competent person scheme or building control |
| Wales | 1.4 W/m²K, or a door set energy rating of band C (more than 60% glazed) or band B (other doors) | Competent person scheme or building control |
| Scotland | 1.6 W/m²K | No building warrant for a straight replacement; must meet the standards |
| Northern Ireland | 1.8 W/m²K | No building notice for a straight replacement; must comply |
Full regulations guide, with sources →
Questions about composite front doors
How much does a triple glazed composite door cost?
Our guide starts at £1,395 fitted for a single door and £1,995 with one side panel, inc VAT. UK quotes range from about £800 for a basic door to £3,000 with side panels.
Is triple glazing worth it in a front door?
The glass is the weakest part of a composite door for heat loss, so triple glazing the panels helps most when the door has large glazed areas or side panels.
Are composite doors secure?
Good ones are tested to PAS 24 and fitted with anti-snap cylinders. We specify both.
Can I have a different colour inside?
Yes, most ranges offer one colour outside and white or another colour inside.
Related products
French doors
From £1,295Pairs of opening doors to the garden, in uPVC or aluminium.
Learn more →
Security glazing
From £745Laminated panes, multi-point locks and PAS 24 tested windows and doors.
Learn more →
Whole-house replacement
From £5,695Every window and door replaced in one planned visit.
Learn more →
uPVC windows
From £695The lowest-cost way to get three panes of glass, in white or a woodgrain finish.
Learn more →Composite front doors by area
England
- Bedfordshire
- Berkshire
- Bristol
- Buckinghamshire
- Cambridgeshire
- Cheshire
- Cornwall
- County Durham
- Cumbria
- Derbyshire
- Devon
- Dorset
- East Riding of Yorkshire
- East Sussex
- Essex
- Gloucestershire
- Greater London
- Greater Manchester
- Hampshire
- Herefordshire
- Hertfordshire
- Isle of Wight
- Kent
- Lancashire
- Leicestershire
- Lincolnshire
- Merseyside
- Norfolk
- North Yorkshire
- Northamptonshire
- Northumberland
- Nottinghamshire
- Oxfordshire
- Rutland
- Shropshire
- Somerset
- South Yorkshire
- Staffordshire
- Suffolk
- Surrey
- Tyne and Wear
- Warwickshire
- West Midlands
- West Sussex
- West Yorkshire
- Wiltshire
- Worcestershire
Scotland
Composite front doors: get your guide price
Use the guide-price tool, or book a free survey for a written quote that fixes the price.