Agate grey aluminium door and flush casement windows

Composite Doors Winchester

Your front door is the first thing visitors see, setting the tone for your entire home. In a city like Winchester, where properties range from the historic terraces of Hyde to the contemporary family homes of Weeke, finding an entrance that balances style with performance is essential. Old timber doors often rot and warp, while standard foam-filled composite doors can sometimes crack or fade under the Hampshire sun.

At KJM Group, we champion quality above all else. That is why we specialise in Solid Timber Core composite doors. Unlike cheaper foam alternatives, our range—led by the industry-leading Comp Door and supported by Solidor—features a dense 48mm timber heart. This gives you the robust “thud” and heavyweight feel of a traditional wooden door, combined with advanced technology to secure your home and boost its kerb appeal.

View our full range of Winchester Home Improvements here.

The 'Comp Door' Difference

Our Flagship Choice for Winchester. We recommend the Comp Door range as our “go-to” specification for Winchester homes, and for good reason. It was designed from the ground up to solve the common issues found in older composite doors. It features a cross-laminated Albasia Falcata timber core for incredible strength, but its real secret is the CoolSkin technology. This industry-leading outer layer reflects heat rather than absorbing it, meaning your door won’t bow, warp, or crack, even if you choose a dark colour like Black or Anthracite Grey on a south-facing wall.

Excellent Thermal Performance
High security specification
Multi-Locking Point System
Handle and Colour Options Available
Anti-drill five-pin cylinder lock
Large Selection Of Accessories
A black composite door.

The Design Icon

Solidor Heritage

As a household name in the industry, Solidor remains a firm favourite for homeowners looking for specific heritage styling. Like the Comp Door, it boasts a 48mm solid timber core—roughly 10% thicker than many competitors. Solidor is renowned for its vast range of traditional hardware and distinct colour palette, making it an excellent choice for period properties in conservation areas like St Cross where replicating the look of a 19th-century entrance is crucial.

Solidor Brochure
A grey composite door.

No Drafts, No Leaks

Superior Weatherproofing

The Winchester weather can be unpredictable, but your hallway should always be dry and warm. While many standard composite doors rely on a single seal, our Comp Door range utilises the TriSeal system. This industry-leading multi-chambered frame offers double the weather resistance of a standard door. Combined with the natural insulating properties of the solid timber core, it eliminates low-level drafts and significantly reduces traffic noise from busy roads.

Comp Door Brochure
A green composite door for a Winchester home.

Keeping Intruders Out

Maximum Security

Security is not an optional extra at KJM. Both our Comp Door and Solidor ranges are fitted with the highest specification locks as standard. We utilise the ABS 3-Star Diamond Grade Cylinder, which features active “Snap Secure” technology. If a burglar attempts to snap the lock, a hidden firing pin secures the central cam, permanently locking them out. This system is so secure that ABS offers a £2,000 guarantee if an intruder manages to snap the lock to enter your home.

Security Information

Hardware Options

PVD GOLD Gold Door Handle
SATIN CHROME Satin Chrome Back door handle
WHITE White Door Handle
ANTHRACITE GREY Grey Door Handle
BLACK Black Door Handle
POLISHED CHROME Chrome door handle

Scroll left/right to see more options.

Colour Customisation

At KJM Group, we understand that every home has its unique personality. That is why our composite doors come in a stunning range of colours. Whether you want to keep the traditional white composite door or choose a sleek black composite door, we have the ideal option for you.

We complement our beautiful composite doors with premium letterboxes, door knockers, and door handles so you can have a genuinely bespoke front door.

White window
White
Steel Blue- 079
Blue
Moss Green Aluminium
Green
Dark Red- 027
Red
Rosewood grain for windows and doors
Rosewood
Off-white - cream
Cream
Chartwell green a great heritage colour
Anthracite grey, a modern colour choice for doors and windows
Anthracite Grey

Composite Door Prices Winchester

If composite doors sound precisely like what your Winchester home needs, then you have come to the right place with KJM Group. For over 40 years, we have supplied and installed some of the very best composite doors on the market. Our status as a Which Trusted Trader and a CheckATrade member proves our quality of work. 80% of our work comes through recommendations or returning customers.

Speak to our team today by filling out your details in our contact form or by calling us on 01264 359355. If you would like an instant composite door price, we offer a bespoke quoting engine that can provide a composite door quote in minutes. You can also visit our showroom to see our extensive range of composite doors in person, and one of our expert team can help guide you through the GRP doors that we have to offer. Visiting our showroom can be a great solution if you are struggling to find the right front door and need inspiration for your home improvement project.

Solidor Front Door Brochure

Composite Door Care and Maintenance

Solidor Composite Door Installation - Case-Study

Ultion Lock Cylinder

Comp Door 2024

Yale - New Age in Door Security

Sounds Like A Solidor

Solidor Security Test

Solidor Composite Front Door Installation

20.10 MB

Solidor Front Door Brochure pdf

1.90 MB

Solidor Composite Door Installation - Case-Study pdf

176.47 KB

Composite Door Care and Maintenance pdf

9.86 MB

Comp Door 2024 Brochure pdf

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