Exceptional composite doors
in Cornwall

Composite doors blend all the best features expected of economical uPVC and natural timber. Tough, efficient and good looking, increasing numbers of homeowners are replacing their back doors with our charming composite systems for a multitude of reasons. These include:

• Better choice; GRP (Glass Reinforced Plastic) door slab or solid timber core composite door
• A wide variety of styles, sizes, colours, glazing, fixtures, top light & side light arrangements
• Insurance & Police approved locking systems
• Low maintenance & long-lasting performance
(average lifespan is 30 years)
• Real commitment to sustainability

If you regularly leave your back door open throughout the warm summer months, it's also worth considering a custom composite stable door installation.

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Black composite door
White bifold door

Premium aluminium
back doors in Cornwall

Aluminium is renowned for its outstanding lightweight yet solid qualities, which makes it ideal for securing modern luxury developments front and back. Impressive, efficient and highly customisable, aluminium back doors are an alluring proposal for ultramodern households because:

• It's an ideal material for larger & more complex back door designs
• Modern square-edge design, created for outstanding strength
• Slender 47mm or 70mm systems available
• Ultra-efficient thermally broken frames as standard
• Integrated weather bar & double rebate for outstanding weather protection
• Tested to PAS 24:2016 Enhanced Security Performance
• High security 10-point locking mechanism & internal beading
• Exquisite collection of colours, matching fixtures, top lights & side lights to choose from
• Undemanding, enduring performance (average lifespan is 45 years)
• Marine grade powder coated aluminium doors are perfect for Cornish coastal homes - actively resisting corrosion, flexing & fading
• The most recyclable of all construction materials.

Browse through our matching aluminium window styles.

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Versatile uPVC back doors
in Cornwall

Accommodating a plethora of property styles and tastes, matching a new back door to an existing uPVC front door couldn't be easier with RJM Windows by your side. Insulating, durable, and stylish, if you're wondering whether uPVC back doors are any good, to save time we've collated their most prominent benefits for you:

• Manufacturing in-house allows for greater design flexibility, improved quality, reduced costs & quicker turnaround times
• Structurally compliant chamfered (symmetrical) or sculptured (rounded) frames that will never rot, flake, or peel
• A highly efficient 5 chamber system + RTR
(Recycled Thermal Reinforcement)
• Low maintenance & long-lasting performance
(average lifespan is 35 years)
• High security PAS 24 accreditation & Secured By Design certification
• Authentic extras such as classic Georgian bar detailing, top lights, side lights, and a range of convincing woodgrain finishes
• 100% lead free profiles make them easier to recycle.

Browse through our matching uPVC window styles.

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Green french doors
  • Colours
  • Hardware
  • Glazing
  • Brochures
  • Colours

    From classic timberlook uPVC doors to sleek black aluminium doors and contemporary grey composite doors, boosting rear kerb appeal is a breeze with a new back door from the RJM collection. Making your new composite door your own couldn't be easier, thanks to an extensive range of woodstain finishes, standard and heritage colour options at your disposal. Our aluminium back doors can be personalised with over 100 RAL colours or customise your new uPVC door with 15 wonderful woodgrain finishes to choose from. And if you can't decide on one colour, why not opt for a dual colour door: with a different colour on the interior to the exterior frame?

    White

    White

    Grey

    Grey

    Green

    Green

    Cream

    Cream

    Black

    Black

    Irish Oak

    Irish Oak

    Light Oak

    Light Oak

    Rosewood

    Rosewood

    Sage Green

    Sage Green

    Hardware

    Tired back doors are often viewed as an easy target for intruders to gain access. No matter whether you choose composite, aluminium, or uPVC, you can rest easy knowing that your new back door is secured with the very best door locks, hinges, handles, and hardware from industry leaders Yale and Trojan.

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    Handle close up

    Glazing

    Special attention is also paid to the glazing that we use. Manufacturing all of our sealed units in-house, we source our glass from Mackenzie Glass; the South West's only Pilkington Regional Partner. Achieving A ratings with ease, all our back doors can be secured with high-performance low-e double glazing, triple glazing, acoustic glazing, toughened glazing, decorative glazing, and a range of privacy glass options.

    Taffeta

    Taffeta

    Pelerine

    Pelerine

    Oak

    Oak

    Stippolyte

    Stippolyte

    Mayflower

    Mayflower

    Minster

    Minster

    Digital

    Digital

    Florielle

    Florielle

    Everglade

    Everglade

    Contora

    Contora

    Brochures

    Find all the answers you need from our in-depth product brochures displayed below.

    Our work

    Secure front doors for Newquay home

    Visiting their local RJM showroom for expert advice, this client had a clear vision of updating their home security. After all, your home is only as secure as its weakest...

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    Our work

    Charming new build conservatory in St Ives

    Serving St Ives and Cornwall communities for over 30 years, we couldn't wait to add essential extra space to this cramped St Ives home with a bespoke conservatory...

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    What our customers say

    Well-known for our strong family values, premium yet cost-effective home improvements and exceptional attention to detail, find out why our customers remain customers for life.

    9.75

    Par

    January 13, 2021

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    Very friendly and professional work force, finished to a high standard

    Very pleased with standard of work and how they cleaned up once completed. Many thanks

    10

    Bodmin

    January 13, 2021

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    New window in porch

    Excellent service from start to finish

    9.75

    Wadebridge

    January 13, 2021

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    Replacement windows

    Hard working and friendly team, who discussed the plan of work with us each day, and kept us informed of progress. Great attention to detail, neat finishes and we’re really...

    10

    Truro

    January 13, 2021

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    Supply and fit new double glazed windows with PVCu frames

    We are really pleased with our new windows. Our quotation was very reasonable and the quality of the materials and installation are great. The window fitter was very polite and...