Instant
01 · Ask
Ask the AI a follow-up
Got more questions about external door installation? Describe the bit you're unsure about — the AI explains options, sequencing and what to ask the windows.
Install an external door.
Composite, uPVC, aluminium or hardwood external door — supplied, fitted with proper threshold and locking.
✓ Updated Mar 2026✓ Free quotes✓ Vetted pros
20,000+UK homeowners
50,000Quotes sent
Keep going
Hire a window installer. FENSA-certified or don't sign.
You've read the brief on external door installation. Now lean on us to find the right windows — and stay in control of the job.
Free
02 · Read the brief
Walk in informed
Costs, timelines, pitfalls and the right questions to ask before any windows starts on external door installation.
60 seconds
03 · Compare
Compare 3 windows quotes
Itemised quotes from up to 3 local windowss on external door installation — so you can compare like-for-like, not lump sums.
✦
Get windows quotes Ready when you are
Enter your postcode and get free quotes from local pros.
Top tips
Hiring a windows, without the regret.
Four moves that separate a smooth job from a nightmare.
Binding or Dropping
Heavy composite or timber doors can "drop" over time. Ensure your installer explains how to adjust the 3D hinges.
Water Ingress
Often caused by blocked drainage holes in the bottom of the frame or poor silicone sealing at the threshold.
Draughts
Usually the result of the door not being "pulled in" tightly enough against the weather gaskets by the locking points.
Lock Failure
Cheaper cylinders can be prone to "lock snapping." Always insist on an anti-snap cylinder.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and what affects price.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
Standard uPVC Door (Supplied & Fitted)Budget-friendly, low maintenance.
£650–£1.1k
Standard Composite Door (Supplied & Fitted)Highly secure, excellent insulation.
£1.1k–£2.2k
Timber Front Door (Solid Oak/Hardwood)Premium aesthetic; requires maintenance.
£1.8k–£4k
Aluminium Entrance DoorModern, slim profiles, very durable.
£1.5k–£3k
French Doors (uPVC Pair)Standard 1.8m width.
£1.2k–£2k
Labour Only (Per Door)Depends on complexity and location.
£250–£550
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
Infographic · VideoThe Windows briefing.
Infographic
Windows quick-view
Video guide
Windows explained
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
NEWAI Trade Assistant
Got more questions
about windows?
Ask follow-ups in plain English. The AI explains options, sequencing and what to ask the windows — so you walk in informed.
I'm planning a job. Should I be looking for a windows?
Sounds like a job for windows. Tell me what you're trying to do — I'll walk you through costs, timeline and what to ask before they start.
FREE QUOTES60 SECONDS
Keep reading
VIEW ALL WINDOWS GUIDES →More windows guides.
Guide
Roof window repair or replacement
Roof windows, often referred to by the popular brand name Velux, are a brilliant way to transform dark lofts and extensions into bright, airy living spaces. How...
READ GUIDE →GuideSash window pane replacement
Sash windows are a defining feature of British period properties, offering timeless aesthetic appeal and vital ventilation. However, whether due to a stray foot...
READ GUIDE →GuideUPVC Door Installation Guide
Upgrading to a modern uPVC door is one of the most effective ways for UK homeowners to improve property security and thermal efficiency. Modern uPVC (unplastici...
READ GUIDE →GuideRoof Window Installation Guide
Adding a roof window is one of the most effective ways to transform a dark, cramped attic or extension into a bright and airy living space. Beyond the aesthetic...
READ GUIDE →GuideDoor installation
Replacing a door is one of the most effective ways to improve your home’s security, energy efficiency, and aesthetic appeal. Whether you are upgrading an old dr...
READ GUIDE →GuideStore window construction
Whether you are converting a former high-street shop into a modern residence or installing expansive, commercial-grade glazing in a contemporary home extension,...
READ GUIDE →