Composite front doors · England
Triple glazed composite front doors in Northamptonshire
From Northampton to Daventry, we arrange triple glazed composite front doors for homes across Northamptonshire, with every quote fixed for the specification shown.

A warmer hallway: triple glass where front doors lose most heat. 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.
Guide prices across Northamptonshire
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.
Towns in Northamptonshire
Rules in England
In England, replacement external doors must meet 1.4 W/m²K, or a door set energy rating of band C (more than 60% glazed) or band B (other doors). Replacement external doors fall under the same energy rules: a competent person scheme installer (such as FENSA or Certass) self-certifies the work and notifies the council, or a building control body approves it.
Before ordering: Replacing doors on a house is normally permitted development if the new ones look similar. Flats need planning permission for a change that alters their appearance, an Article 4 direction 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 door U-value on every quote
- Written handover pack at the end of the job
- Guarantees on frames, units and fitting in writing
Questions
Are composite doors secure?
Good ones are tested to PAS 24 and fitted with anti-snap cylinders. We specify both.
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.
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.
Do you cover all of Northamptonshire?
We arrange surveys and fitting across Northamptonshire.
Do I need permission for triple glazed composite front doors in England?
In England, a replacement door on a house that looks similar is 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.
Composite front doors in nearby areas of England
- Rutland
- Leicestershire
- Bedfordshire
- Warwickshire
- Cambridgeshire
- Buckinghamshire
- Oxfordshire
- Hertfordshire
- West Midlands
- Nottinghamshire
Other products in Northamptonshire
- uPVC windows
- Aluminium windows
- Timber windows
- Alu-clad timber windows
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Bay and bow windows
- Fixed and picture windows
- French doors
- Sliding patio doors
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Composite front doors across Northamptonshire
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.
