*NEW FOR 2026! – Our Online Composite Door Designer With Live Quotations Click Here*

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  • Home
  • Composite Doors
    • Composite Doors
    • Composite Door Designer
  • New Windows & Doors
    • Aluminium Windows
    • Bay Windows
    • Bi-Folding Doors
    • Flush Casement windows
    • Sliding Sash Windows
    • Timber Window & Doors
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    • uPVC Windows
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Composite Doors & Our Brand New Online Designer

Why Choose a New Composite Door? – The Benefits Explained

A composite door isn’t just a front door – it’s one of the best home improvements you can make. Here are the real, everyday benefits our customers in Surrey, West Sussex and beyond notice from day one:


1. Unmatched Security

  • 44–48mm slab with high-density foam (not hollow like cheap alternatives)
  • Multi-point hook locks, anti-snap, anti-bump, anti-drill Ultion cylinders as standard
  • Many models are Secured by Design police-approved and PAS 24 certified


2. Superb Energy Efficiency

  • Typical U-value of 1.0–1.4 W/m²K (A++ rated) – keeps heat in and bills down
  • Triple draught seals and woolpile weather strips stop cold air sneaking in
  • Warm-edge spacer double glazing stops condensation on the inside


3. Zero Maintenance

  • GRP (glass-reinforced plastic) skin won’t rot, warp, fade or need painting
  • A quick wipe with a damp cloth keeps it looking showroom-new for decades


4. Stunning Kerb Appeal

  • Wide range of colours inside and out (yes, you can have white inside and anthracite outside!)
  • Realistic wood-grain finishes that look exactly like painted timber – but without the upkeep
  • Huge choice of modern and traditional glass designs, letterplates, knockers and handles


5. Superior Sound Insulation

  • The thick, multi-material construction dramatically reduces road and neighbour noise
  • Perfect for busy roads or properties near schools


6. Long-Term Value

  • 10-year insurance-backed guarantee (QANW)
  • Adds genuine value to your property and helps it sell faster
  • No more annual painting or replacing rotten timber doors every 10–15 years


In short: a composite door is warmer, quieter, safer and more beautiful than any traditional timber or standard uPVC door – and it stays that way for life.


Ready for a new composite door that makes your neighbours jealous? Call us on 01306 302044 or click below for your free quotation.

Contact us

How We Install Your New Composite Door – Step by Step


A full composite door replacement is clean, fast and normally finished in one morning or afternoon.


  1. Free survey & quote -We measure the opening, show you real door slab colour samples to you help pick colour, glass, furniture and accessories.
  2. Manufacture -Your chosen composite door is made-to-measure in 3–4 weeks – solid timber core, high-impact skins and all security features built in.
  3. Installation day
    • Dust sheets down from front path to hallway
    • Old door + frame removed completely
    • New low-threshold frame secured and packed perfectly level
    • Ultion 3-star cylinder, multi-point hook locks, anti-snap and anti-bump protection tested for smooth operation 
    • Letterplate, doctor knocker, spy-hole and numerals installed


  1. Final finish
    • Trims fitted
    • Neat internal and external silicone bead
    • All old materials loaded and taken away the same day
    • Full demonstration of the locking system and easy-clean tips


You’re left with a stunning, ultra-secure, A++ energy-rated front door that will stay looking brand new for decades – fully backed by our 10-year insurance-backed guarantee.

Our New Composite Door Designer

New for 2026: Online Composite Door Designer from DH Glazing & Repairs.


Design and customise your perfect composite door from the comfort of home with our intuitive online designer tool. See your choices come to life in real time and get instant, accurate quotations as you build.


All our doors are proudly supplied by Hallmark Doors – the UK's leading composite door manufacturer, renowned for exceptional quality and innovation.


Expertly supplied and professionally fitted by our skilled team, we treat every home with the utmost respect and care, leaving your property exactly as tidy as we found it.


Start designing today and transform your entrance with confidence.

Click here to start designing your door
  • Home
  • Composite Doors
  • Composite Door Designer
  • Aluminium Windows
  • Bay Windows
  • Bi-Folding Doors
  • Flush Casement windows
  • Sliding Sash Windows
  • Timber Window & Doors
  • uPVC Doors
  • uPVC Windows
  • Balustrade & Juliet Glass
  • Fascia,Soffit & Guttering
  • Leaded lights
  • Mirror & Splashbacks
  • Roof Lanterns
  • Sealed Units
  • Secondary Glazing
  • Solar Panels
  • Traditional Glazing
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DH Glazing & Repairs

Based in Dorking. Covering Surrey and surrounding areas.

info@dhglazingandrepairs.co.uk

Copyright © 2025 DH Glazing & Repairs - All Rights Reserved.

01306 302044

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