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Quality Manufacturers & Installers

Quality Manufacturers & Installers

Composite Doors

Call Us On 01642 881 244

Composite Doors Middlesbrough

Composite doors are ever more popular, especially now, when homeowners are more discerning and sophisticated in their buying decision. We’ve used innovative manufacturing processes and new product development to produce a door range that truly excels on style, performance and delivery. Our range of composite door sets is available in a wide choice of styles, colours and glass options with a performance which outlasts other brands. 

What are composite doors and what are they made of?

Composite doors are made from a selection of different materials, which can include timber, plastics and uPVC. All of the materials are fused together, resulting in an extremely strong door, making them great for external use!

No matter if you require modern composite doors for a new build home or more traditional styles for a timeless property, we have a range of colours and designs to choose from! 

Features & Benefits

  • Style & Colour
    Our GRP ‘through colour’ doors are available in a choice of nine popular RAL colour finishes including black (beck brown), white and traditional solid wood grain finishes. These are not painted skins, which can be subject to inconsistency in the finish. Each finish is enhanced by the high wood grain definition made possible by our thermoset process.

  • Double Rebate
    Double rebate doors are easier to install and adjust on-site compared to single rebated doors. The double rebate allows for greater tolerances in movement between the door leaf and frame during installation, just like installing a standard uPVC door. A double rebate feature also means our doors are fully sealed so that we have better protection against water penetration, and improved weather and acoustic performance compared to normal single rebated doors. Single rebated doors require a precise fit and good alignment with equal spacing around the door during installation.

  • Construction
    The WHS Halo door is the thickest on the market today at 68mm. In fact 30% more than the standard 44mm offered by other brands. Which makes ours not only much stronger but also gives superior thermal performance with a U value of 0.85Wm2K on a solid door and improved acoustic sound performance. This is made possible by the high-density polyurethane foam, which forms a solid composite construction to fill the assembly, adding to an almost impenetrable door that is warp-free and weather resistant. It makes ours more energy-efficient, saving the homeowner on heating bills.

  • Timber free construction
    There is no timber involved. Instead, environmentally friendly uPVC sections with bespoke full steel reinforcement substrates are used for the door skins to be applied to. The advantages compared to doors using a timber substrate is that ours offer greater rigidity with less risk of twisting, swelling, shrinking, rotting or warping of the door itself.

  • Made to Measure
    The substrate and door skin for each door is cut to size at our factory, which means our doors are made to measure. Timber substrate doors require the fabricator to cut the door to size from a stock hold of standard sizes. Our fabricators are not required to hold stock.

  • Low Threshold
    A high-performance aluminium low threshold (Part M) is available for easier wheelchair or pram access and improved looks.

  • British Standards Specification Approved
    Our solid strength doors are British made through and through. Built to give you confidence and built to last. Ours outperform the most stringent and recognised consumer British standards and are manufactured under ISO14001 Environmental Management System licence. All components and extruded parts are manufactured in the UK.

  • PAS 023 & 024
    Doors pass the latest PAS023 standard at the highest level, which measures a high resistance to air and water penetration*. Doors pass the PAS024 security standard, which measures resistance to a high level against forced mechanical and human entry*. Our doors also meet the requirements of ‘Secured By Design’ – a standard recognised by the Association of British Insurers.

  • Environmental Considerations
    Our doors are made to reduce energy loss by as much as 85% compared to traditional timber doors. The CFC free polyurethane foam used in the inner core and the timber free construction makes it more environmentally friendly.

  • The Door Frame
    The door frame is made from steel-reinforced 70mm PVCu profile extruder to BS7413 specifications. This results in a door that is high impact resistant tested to the most stringent standards. Available in Eclipse, System 10 or Eclipse esthetic systems.

  • Hardware & Glazing
    Decorative glazing options – Choose from a wide selection of twelve decorative glazing options and six obscurity levels to match. Coloured and bevelled options are also available. 28mm glazing cassettes comply with Secure By Design standards.

If composite doors sound like the best choice for your home get in touch with the Celestial Windows team here today or visit our showroom in Middlesbrough.


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Celestial Windows is a trading name of Celestial Windows and Conservatories Limited

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