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A Hallmark Composite Door.
The inside of a green Solidor door.
A Hallmark Composite Door.

GRP composite doors in High Wycombe & the surrounding areas

Balancing affordability, quality, and performance in equal measures, Hallmark and Residor lead the market for resilient, durable, and low maintenance GRP composite door replacements.

Available in a variety of entrance arrangements (including ventilating stable doors) and 20+ traditional and modern composite front door designs, whether it's an eye-catching yellow composite door or an elegant traditional design, we’re confident we can tailor the perfect front door replacement to enhance your High Wycombe property’s unique character.

Browse through our varied collection of door styles, colours, finishes, and glazing options like double glazing Marlow at your leisure and create the building of your dreams with ease.Visit our downloads section below for full details.

Our Installations
A Hallmark Composite Door.
A Hallmark Composite Door.

Resilient Composite Doors for properties in Chiltern Hills, Amersham, High Wycombe & beyond

Available with insurance and Police approved locking systems, Hallmark Panels and Residor composite doors are two of the most secure GRP composite doors available to-date. Going through extensive testing and checks, both brands can achieve the sought-after PAS 24: 2016 Enhanced Security Performance status with ease.

Looking for a solid core composite door instead? Then take a peek at our industry-leading Solidor composite doors.

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Energy saving composite doors for homeowners across High Wycombe & the South East

Our entire door collection is chosen with cost-effective, energy-saving features in mind. Hallmark composite doors are 19% more energy efficient than most 48mm solid core composite doors, making them capable of achieving outstanding A++ Door Energy Ratings and U-values as low as 0.8 W/m2. Keeping bills low and satisfaction high, our Residor composite door products can achieve maximum U-values of just 1.3.

The unique combination of weather-resistant Glass Reinforced Plastic (GRP), an insulating high-density foam core, and a single or double rebated frame delivers outstanding insulation where it's needed most, whereas solid core composite doors come out on top for enhanced security features.

Get In Touch
An open Solidor door.
  • Colours
  • Glass Options
  • Accessories
  • Security
  • Downloads
  • Colours

    Whether your improvement plans require a standard Anthracite Grey composite door, a premium Pastel Blue composite door, or something a bit more vibrant to match your personality, finding the best fit for your project is incredibly straightforward with a Double Glazing Direct composite door installation. The Hallmark range is available in 9 standard colours, 27 premium shades, and over 150 RAL colours, whilst the Residor collection can be tailored in 5 standard colours, 3 frame colours or 250+ RAL colours. Along with diverse dual-colour options, a world of colour awaits!

    Rosewood

    Rosewood

    White

    White

    Irish Oak

    Irish Oak

    Black

    Black

    Chartwell Green

    Chartwell Green

    Cream

    Cream

    Golden Oak

    Golden Oak

    Anthracite Grey

    Anthracite Grey

    Glass Options

    Our energy efficient GRP Residor collection can achieve maximum U-values of just 1.3 W/m2. Whereas our Hallmark doors are capable of achieving A++ Door Energy Ratings & U-values as low as 0.8. With thermally-advanced double and triple glazed options, all glazed units available from Residor utilise temperature-modering Low-E glass and are filled with Argon for increased sound insulation too. We also have an attractive range of decorative glazing, perfect for intricate heritage projects, adding privacy, and one-of-a-kind installations.

    Cassini

    Cassini

    Tribal

    Tribal

    Taffeta

    Taffeta

    Warwick

    Warwick

    Reeded

    Reeded

    Pelerine

    Pelerine

    Oak

    Oak

    Mayflower

    Mayflower

    Minster

    Minster

    Everglade

    Everglade

    Florielle

    Florielle

    Charcoal

    Charcoal

    Contora

    Contora

    Digital

    Digital

    Chantilly

    Chantilly

    Accessories

    From contemporary inline bar handles to traditional door knockers that add a touch of class, Hallmark Panels and Residor have a charming selection of superb door accessories. With antique, architectural, and classical handle styles available in stainless steel, antique black, black, chrome, gold, silver, and white, we're confident we have the perfect finishing touch for your new GRP composite door to truly make it your own.

    brown front door glass

    Security

    As well as optional advanced laminated glass or triple glazing, and one of the most secure door locks included as standard (Residor), all of our GRP composite products undergo extensive testing and checks. This means they can achieve the sought-after PAS 24 Enhanced Security Performance status, for peace of mind they can resist physical attacks by opportunist burglars.

    Learn more about our window and door security features.

    black front door

    Downloads

    Get an online quote:

    What do our customers say?

    See more reviews

    Friendly and Professional

    We moved into a 4 bed town house a couple of months ago and had all the windows and doors replaced. The co owner Mark, came out and offered great advice on the options available. They installed everything on time in a Friendly and professional way and were approachable/helpful if there were any issues that arose. They were always clean and tidy. We would wholeheartedly recommend Double Glazing Direct Limited to anyone.

    Buckinghamshire, 11/06/2022

    Which? Trusted Trader

    Excellent work with quality products

    I have use Marc several times, some professionally and also personally. Marc has always communicated with me well regarding delivery of product and installation. He is alway courteous and very professional, the product quality he uses are extremely good and he is an excellent fitting leaving you with a very high quality finish. Excellent would definitely use him again if required.

    Buckinghamshire, 23/10/2021

    Which? Trusted Trader

    Great Work, Professionally Done

    The whole team who carried out the work were excellent. Diligent, courteous and professional, they performed a standout job, from initial quote through to completed work. Couldn’t recommend them enough, and we are extremely happy with everything.

    Buckinghamshire , 25/11/2021

    Which? Trusted Trader

    Outstanding Service

    We had many issues trying to locate a company to replace our conservatory roof however, this company was recommended to us by a friend of a friend and we couldn’t be happier. It was really refreshing to have a company not place any pressure for a sale; always available to answer any queries; worked incredibly quick and professionally throughout with a friendly manner. We are so impressed with the service received, that we have now booked them again in May to have our windows replaced.

    Buckinghamshire, 02/05/2023

    Which? Trusted Trader

    ‘Double Glazing Direct’ were brilliant.

    They were extremely polite and professional. Before they started the work on the day of installation, taking out the existing windows, they prepared the area with dust sheets and special protective flooring on our wood floor and stairs. The fitters were skilled knowledgeable and focussed. There was no mess made during the installation. The quality of the product and installation was excellent. I love my windows and I will always recommend ‘Double Glazing Direct’.

    Greater London, 15/09/2023

    Which? Trusted Trader

    Great job, professional service

    Replaced an old aluminium frame patio door with updated upvc doors. Work undertaken very professionally, leaving the area clean and tidy afterwards. Noticed a very slight imperfection upon completion but this was rectified quickly and efficiently. Thank you to the entire Team. I would recommend Double Glazing Direct to anyone. Brilliant service from start to finish.

    Buckinghamshire, 15/09/2023

    Which? Trusted Trader

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