Double glazed front doors, back doors and
patio doors in Cornwall

Creating a defensive collection of uPVC doors and sealed units completely in-house has earned us the reputation as one of Cornwall’s most esteemed door manufacturers. A-rated for energy efficiency and thoroughly tested to adhere to the latest security regulations, we also cater to households that seek the timeless look and strength of timber without any of the drawbacks with our industry-leading composite door installations. Or if the elegant architectural look is more your cup of tea, we also install a premium range of slimline aluminium sliding patio doors,
classic French doors and modern bifold doors.

Make a lasting first impression with high-performance door replacements from RJM Windows.

Solidor black composite door

Front Doors

Your front door plays an integral role in keeping your family safe, secure, and worry-free. When thermal efficiency is essential, our efficient uPVC front doors are an attractive yet cost-effective prospect. Our premium range of aluminium front doors are tailored to chic architectural coastal residences, whilst our charming composite doors offer the best of both worlds in all aspects of performance.

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Black composite door

Back Doors

Back doors are often an afterthought, because, as they say, ‘out of sight, out of mind’. However, in many cases, back doors are used more than the front door. Put more between your family and the outside world, with a high-performance uPVC, aluminium, or composite back door, expertly installed by RJM Windows.

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uPVC sliding patio door

Sliding Doors

Pleasing panoramic views, smooth space-saving precision and wonderful weather protection are a given with our superb sliding patio doors. Available with practical uPVC frames or slender aluminium sliding doors, and a wide range of opening configurations, colours and finishes, any look, taste or preference can be accommodated with ease.

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Green french doors

French Doors

When sophisticated style, enlightening ventilation and modern security features are key, savvy Cornish homeowners, installers and developers turn to the time-honoured French door design for the answer. Symmetrical chamfered frames or classic rounded sculptured frames are available with our uPVC French door systems, whilst our sensational slimline aluminium French doors add essential character to modern developments in Cornwall.

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White bifold door

Bifold Doors

Able to open up entire walls with ease, fashionable bi-folding doors have become synonymous with modern open plan living - skillfully adding considerable space to the smallest of spaces. Smoothly welcoming the outside in, seamless accessibility, efficiency, security and style go hand in hand with our streamlined uPVC and aluminium bifold door solutions.

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Solidor black composite door

Composite Doors

Literally meaning made up or several parts or elements, the composite doors’ unique blend of materials makes it one of the most secure replacement door options around. Robust, weather-resistant and resilient, upgrading to an ultra-strong composite door will keep your home warm, secure and stylish for decades to come. Courtesy of industry-leaders Solidor and Truedor, we’re confident our composite door designs and finishes will exceed your expectations.

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Window and door showroom in St Blazey, Cornwall

Visit our showroom in
the heart of St Blazey

Due to the COVID-19 pandemic, our office and showroom remain closed to the public. However, we are available to discuss your unique requirements by telephone or email. We can also provide contact-free, no-obligation quotes, carry out surveys and complete installations following strict operating procedures that will be explained in more detail once your order has been placed.

We look forward to welcoming you back very soon.

Book an appointment