Design Your Door Online
With Live Pricing.
Configure your bespoke composite front door down to the exact millimetre. Watch accurate pricing update instantly as you customise profiles, colours, and glass.
Live Accurate Pricing
Instant price calculations as you choose ironmongery, styles, and glass.
Precision Sizing & RAL Colours
Millimetre aperture control, dual-colour finishes, and certified PAS 24 security.
Fast Direct Checkout
Lock in direct trade pricing and track home or site delivery UK-wide.
Bespoke Doors & Windows
Precision manufactured to your exact opening dimensions. Configure live trade pricing or explore technical specifications below.
Composite Front Doors
44mm & 48mm high-security composite doors with Ultion multi-point locking suites.
Aluminium Bifolds
Smart Visofold slimline thermally broken profiles with smooth bottom-rolling mechanisms.
Crittall Style Doors
Smart Heritage 47 industrial statement doors with slim astragal glazing bars and steel-look lines.
Sliding Patio Doors
Cortizo 4700 slimline aluminium system engineered for panoramic openings and minimal sightlines.
Rooflights & Lanterns
Architectural pitched lanterns and flat glass rooflights with high thermal efficiency and self-cleaning glass.
Composite French Doors
Double-door composite sets combining period timber-grain aesthetics with modern security and weather sealing.
PVC & Ali Windows
Custom casement, fixed, and tilt & turn window configurations with A-rated energy glass options.
French Patio Doors
Classic uPVC double-opening patio doors featuring reinforced multichamber profiles and multi-point shootbolts.
uPVC Sash Windows
Heritage sliding sash windows featuring authentic run-through horns, deep bottom rails, and smooth counter-balances.
Precision Engineering.
Direct Trade Pricing.
External Doors Online is a trusted nationwide supplier of premium, supply-only external doors and architectural glazing. Backed by extensive building industry expertise, we partner directly with leading British manufacturers to deliver rigorously tested, secure, and energy-efficient products straight to site or home.
Comprehensive Product Range
Supply-only composite doors, slimline aluminium bifolds, sliding patio doors, heritage steel-look systems, and glazed roof lanterns.
Direct Factory Pricing
Engineered to exact aperture dimensions without third-party showroom markups or unnecessary distributor middleman fees.
Nationwide Direct Delivery
Reliable, vehicle-tracked site or home drops across mainland UK, scheduled with your building or installation programme.
Dedicated Technical Support
Hands-on assistance from trade specialists on aperture tolerances, Part L compliance, U-values, and PAS 24 security standards.
Trade-Direct Supply
With Zero Showroom Markups
Cut out trade counter inflated distributor margins. Access wholesale factory rates, priority production runs, and direct-to-site UK delivery with a dedicated Trade Account.
Tiered Trade Pricing
Fixed contract discounts below retail rates, keeping your project margins protected and competitive.
Direct-To-Site Logistics
Timed UK delivery right to your job site or workshop, eliminating secondary transport hassles.
24/7 Live Quoting Engine
Configure doors and generate branded spec sheets on your phone in front of clients on site.
Dedicated Account Support
Experienced customer service and sales teams to manage your requirements and project specifications.
Frequently Asked Questions
Everything you need to know about measuring apertures, UK building regulations, factory lead times, and site delivery.
How do I measure my door opening accurately?
Measure the brick-to-brick opening on the outside of your property. Always take three horizontal width measurements (top, middle, bottom) and three vertical height measurements (left, centre, right).
Take the smallest measurement of each and deduct 10mm to 15mm from both the total width and total height. This allowance ensures proper fitting clearance, thermal expansion space, and allows for square installation with packers.
Do your doors comply with UK Building Regulations (Part L & Part Q)?
Yes. All our composite doors, aluminium bifolds, sliding systems, and windows meet or exceed the latest UK Building Regulations Part L (thermal performance).
For new builds or extensions requiring Document Q / PAS 24 compliance, all our systems can be specified with accredited multi-point locking suites, laminated safety glass, and Ultion 3-star high-security cylinders.
Can I configure dual colours (different inside and outside)?
Yes. Through our online designer, you can configure dual-colour options across both composite front doors and architectural aluminium frames.
A popular choice is selecting a bold statement architectural finish on the exterior (such as Anthracite Grey RAL 7016, Agate Grey, or Black) paired with a clean White interior frame to match internal décor.
How does nationwide delivery work, and can you deliver to site?
We deliver direct to residential homes or active commercial building sites across mainland UK using specialist vehicle fleets equipped for handling architectural glass and heavy composite sets.
Prior to delivery, our logistics team contacts you with scheduled dispatch windows, vehicle dimensions, and kerbside drop details to coordinate seamlessly with your installation programme.
What are your standard manufacturing lead times?
Standard composite front doors typically dispatch in 10 to 15 working days from order confirmation.
Custom aluminium bifolds, heritage Crittall-style doors, and bespoke roof lanterns are manufactured to custom millimetre openings and generally dispatch within 2 to 4 weeks depending on powder-coat RAL colour choices and glass specifications.
How do trade accounts and bulk project pricing work?
Builders, joiners, window fitters, and property developers can register for a Direct Trade Account in under 2 minutes.
Trade perks include factory-direct tier pricing, dedicated technical project managers, rapid quote turnaround from architectural elevation drawings, and flexible payment options.
Trusted by Fitters, Builders & Homeowners
Read live, verified experiences from trade clients and residential projects across the UK.
Speak With Our Door & Window Specialists
Have an enquiry, aperture question, or bespoke sizing query? We are here to help.