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Published on January 26, 2024 1:49 PM
A composite door is an engineered product designed to provide homeowners with a durable, secure, and aesthetically pleasing entrance to their home. Unlike traditional single-material doors, it is constructed from a combination of materials that include wood, PVC, insulating foam, and Glass Reinforced Plastic (GRP). This fusion of materials is specifically chosen to counteract the flaws found in single-material doors, such as poor thermal retention or lack of strength, and results in a robust, long-lasting door.

Such doors are not only attractive but also excel in performance. The combination of materials lends itself to a multitude of design options, allowing for the replication of classic wooden door aesthetics or the creation of modern designs. The inherent strength and build quality of composite doors offer heightened security features, and their maintenance is straightforward due to the resilient nature of the materials used, which resist wear and weathering over time. Whilst the initial outlay may be higher than some alternatives, the longevity and performance can provide excellent value for money.

Key Takeaways

  • Composite doors feature a blend of materials for enhanced durability and efficiency.
  • They offer a wide range of design options and are low-maintenance.
  • Despite a higher initial cost, their robust construction provides value for money over time.
Door Stop-Brochure Composite Door Collection v3 [DIGITAL]-20
Door Stop-Brochure Composite Door Collection v3 [DIGITAL]-4

The Basics of Composite Doors

Composite doors are recognised for their robust construction, combining various materials to offer enhanced security, durability, and thermal efficiency. They stand as a modern alternative to traditional doors, integrating multiple elements to achieve superior performance.

What is a Composite Door?

A composite door is an exterior door made from multiple materials, strategically selected and structured to exploit their combined strengths. Typically, the core of these doors is fashioned from a solid timber structure, providing inherent strength and stability.

Composition and Materials

The amalgamation within a composite door includes materials like uPVC, GRP (Glass Reinforced Plastic), and a timber or foam core, with each contributing to the door’s overall functionality. For instance:

  • Timber core: It contributes to the door’s solid feel and weight, enhancing security.
  • GRP: This is used for the skin and offers weather resistance while mimicking the texture and appearance of natural wood.
  • uPVC: Often used in the frame, it provides excellent thermal insulation and does not warp or discolour.
  • Foam core: A more budget friendly option to a solid timber core.

Variety of Styles

Composite doors come in a diverse range of styles and colours, ensuring they can suit various aesthetic preferences and architectural designs. From traditional to contemporary appearances, these doors may feature intricate glass inserts, different textures, and a broad spectrum of colour finishes.

How They Compare to Traditional Doors

When compared to traditional wooden or uPVC doors, composite doors excel in several aspects:

  • Durability: They resist weathering and are not prone to warping or rotting.
  • Security: Enhanced strength due to the combination of materials makes them more secure against intruders.
  • Thermal efficiency: The insulating properties of the door’s materials contribute to energy savings by keeping heat in and cold out.
  • Maintenance: Requiring minimal upkeep, they stay looking fresh without the need for regular painting or varnishing like wooden doors.

Why Choose a Composite Door?

When it comes to selecting a front door for one’s home, composite doors emerge as a superior choice owing to their combination of security, durability, energy efficiency, and aesthetic appeal. They are designed to meet the demands of homeowners looking for a door that not only enhances the appearance of their property but also contributes to its safety and insulation.

Enhanced Security Features

Composite doors often incorporate multi-point locking systems, which significantly bolster their security profile. The robust structure makes them resistant to forced entry, positioning them as a secure barrier against potential intruders. Such doors are particularly valued for their solid construction that typically combines materials like PVC, wood, and insulating foam or GRP (glass reinforced plastic), which together result in a much tougher door compared to conventional single-material doors.

Durability and Maintenance

The durability of composite doors is one of their standout features. They are constructed to withstand adverse weather conditions and resist wear over time, leading to impressive longevity. Maintenance is minimal; the GRP skin repels water and does not suffer from issues like warping, rusting or fading that often plague doors made from other materials. This translates to a consistently polished look with just basic cleaning, and no need for regular repainting or varnishing.

Door Stop-Brochure Composite Door Collection v3 [DIGITAL]-197

Energy Efficiency and Insulation

An advantage that often places composite doors ahead of others is their energy efficiency. These doors have a thermal core which is excellent for heat retention, reducing heat loss from the home. Consequently, a well-insulated door can contribute to lower energy bills and a more comfortable living environment inside the house, thanks to the high-density foam or other insulating materials used in its core.

Aesthetics and Kerb Appeal

Composite doors come in various styles and finishes which can enhance a property’s kerb appeal. The GRP skin allows for a range of designs, from traditional to contemporary, and it can mimic the appearance of natural wood without the associated maintenance. Additionally, the door’s colour remains vibrant over time, ensuring the property retains its aesthetic allure. Whether a homeowner prefers bold colours or subtle shades, composite doors offer the flexibility to align with their personal taste and home’s architectural style.

Durability of Composite Doors

Composite doors are renowned for their durable construction, offering robust performance under various weather conditions. Their resistance to everyday wear and tear makes them an excellent choice for longevity and low maintenance.

Resistance to Weather

Composite doors are specifically designed to be weatherproof, withstanding the harshest of weather conditions without succumbing to rot, warp, or corrosion. The outer layer, typically made of glass-reinforced plastic (GRP), acts as a shield against rain, snow, and sun, maintaining its structure and appearance over time.

Long-Lasting Quality

The materials used in composite doors contribute to their overall durable nature. A combination of materials such as wood, PVC, insulating foam, and GRP provides a door that resists impacts and is less likely to dent or scratch. This fusion of materials ensures the door remains as sturdy as when first installed, resisting daily knocks and bumps with ease.

Guarantees and Lifespan

Manufacturers of composite doors often provide substantial guarantees, reflecting their confidence in the product’s lifespan. These doors are generally recognised for their long-term durability, commonly outlasting doors made purely of timber or uPVC, thus offering homeowners peace of mind regarding their investment.

Style Options for Composite Doors

Composite doors offer a vast array of style options, allowing homeowners to achieve the desired aesthetic for their property. Whether one prefers the look of traditional wooden doors or desires a more contemporary finish, the market provides ample design possibilities.

Design Customisation

Homeowners can personalise their composite doors with various design elements to resemble traditional wooden doors or to meet specific architectural styles. The design process often includes selecting patterns and decorative glass options, which can significantly alter the door’s appearance. Customisable features allow one to design their door in a way that reflects their personal style while also complementing the overall look of their home.

Colour Options

The available colours for composite doors are extensive, with a palette that ranges from classic whites to bold hues. Manufacturers typically offer colour options that replicate the look of natural wood, providing the aesthetic appeal of a wooden door without the maintenance drawbacks. The materials used, including uPVC and glass reinforced plastic (GRP), ensure that the colour remains vibrant and resistant to fading over time.

Standard ColourPremium Colour Options
WhiteAnthracite Grey
BlackChartwell Green
BlueDuck Egg Blue
RedMoondust Grey
GreenRich Aubergine

Hardware and Accessories

The finishing touches for a composite door come from its hardware and accessories. Options typically include various types of handles, letterboxes, knockers, and locking mechanisms. Not only do these accessories contribute to the door’s security, but they also play a crucial role in the final aesthetic. One has the liberty to select from traditional, transitional, or modern hardware styles to ensure that every aspect of the composite door aligns with their desired look.

Maintenance of Composite Doors

Composite doors are known for their low maintenance compared to traditional wooden doors. Regular cleaning and occasional checks for any issues are generally all that’s required to keep these doors functioning well and looking good over time.

Cleaning and Care

Routine Cleaning:
• To maintain the appearance of a composite door, they recommend cleaning it every three months with warm, soapy (hand soap not dishwashing liquid) water and a soft cloth.
• Avoid abrasive cleaners as they can damage the surface finish.

Weather Seals and Hardware:
• Check and clean the weather seals periodically to prevent draughts.
• Lubricate the hinges and locks annually with light oil to ensure smooth operation.

Common Issues and Solutions

Sticking or Misaligned Doors:
Sticking or Misaligned Doors:
• Check the hinges for any looseness or wear and tighten or replace as necessary.
• Adjust the door’s alignment following the manufacturer’s instructions if sticking persists.

Wear and Tear:
• For minor scratches, use a repair kit designed for composite doors.
• If the door is fading due to exposure, a specialised topcoat may be applied to refresh the colour.

Repainting and Adjustments

Repainting Requirements:
• Composite doors rarely need repainting due to their UV-resistant finish.
• Should repainting be essential, use paints formulated for composite materials.

• Doors may require hinge adjustments to prevent sticking, especially if exposed to extreme weather conditions.
• Consult the manufacturer’s guidelines or a professional for correct adjustment methods.

Cost Comparison: Composite vs. Other Doors

Composite doors typically fall on the higher end of the price spectrum compared to uPVC doors or some standard size timber doors available “off the shelf”. Readers should examine the initial monetary outlay, the long-term return on investment (ROI), and potential energy bill savings when comparing these door options.

Initial Investment Costs

When considering initial investment costs, composite doors are generally more expensive than their uPVC counterparts. They are engineered for durability and involve a complex manufacturing process that combines multiple materials. The price is influenced by the blend of materials used and the enhanced security features. As of 2024, one might find that a standard composite door cost ranges from £800 to £1500, whereas uPVC doors can be purchased for about £400 to £600. Wooden doors have a broader price range, starting from around £500 and can go significantly higher if they’re made to measure. Our average timber door, made to measure is £2500.

Lifetime Value and ROI

The lifetime value and ROI of a door are gauged by its durability, maintenance needs, and performance over time. Composite doors offer substantial value for money in the long-term perspective. They require minimal maintenance compared to wooden doors, which may need regular varnishing to withstand the elements. The blend of materials in composite doors results in a product that is resistant to warping, cracking, and fading. Their lifespan often exceeds that of uPVC and wooden doors, adding to their ROI.

Energy Bill Savings

Energy bill savings are a considerable factor for homeowners. Composite doors excel in thermal efficiency due to their insulation properties. While uPVC doors also provide good insulation, the solid core of a composite door often delivers better performance, which can result in lower energy bills. One may notice the difference in energy costs as the better insulation of composite doors helps to keep homes warmer in winter and cooler in summer, cutting down on the amount of energy used for heating and cooling.

• Composite Doors: High thermal efficiency, potentially leading to significant savings on energy bills.
• uPVC Doors: Good insulation, but may not match the energy efficiency of composite doors.
• Wooden Doors: Natural insulator, though typically less efficient than composite options, potentially resulting in higher energy bills.

Installation Process for Composite Doors

When opting for a composite door, one must consider the installation process carefully to ensure security and efficiency. The right installer, awareness of building regulations, and post-installation care are crucial to the longevity and performance of the door.

Choosing the Right Installer

Selecting an experienced and reputable installer is crucial for a successful composite door installation. Clients should seek installers who are well-versed in working with composite materials and offer a guarantee for their work. A dedicated professional often provides a high standard of installation that meets Secured by Design specifications, a police initiative for safer homes.

Understanding Building Regulations

Compliance with current building regulations is mandatory for door installations in the UK, including those governing thermal performance and security. This ensures the door is energy-efficient and secure against potential breaches. Failure to adhere to these regulations can result in fines and the need for costly modifications.

Post-Installation Care

After installation, proper care ensures the door’s durability and functionality. A breakdown of post-installation care includes:
• Regular cleaning of the door’s surface to maintain its aesthetic.
• Checking and maintaining the hardware components, such as hinges and locks, to ensure they function correctly.
• Ensuring any issues are addressed promptly to uphold the door’s guarantee terms.

This maintenance not only preserves the door’s appearance but also upholds the guarantees provided by the manufacturer, ensuring security and insulation benefits are maintained.

Frequently Asked Questions

This section addresses common queries about composite doors, encompassing their construction, cost, maintenance, and comparison with other door types.

What materials are typically used in the construction of a composite door?
Composite doors are constructed from multiple materials including Glass Reinforced Plastic (GRP), also known as fibreglass, along with a combination of wood, insulating foams, and PVC to enhance durability and thermal efficiency.

What’s the average price of a composite door?
The average price of a composite door is around £1000. The price varies depending on style, size, and additional features but typically falls within the range of £900 to £2000, which includes installation fees.

What are common issues that might arise with composite doors?
Issues with composite doors can include discolouration from UV light, swelling or bowing due to extreme temperatures, and hardware complications. Nonetheless, these doors are generally known for their resilience and long-lasting properties.

Is it possible to repaint a composite door, and if so, how?
Yes, composite doors can be repainted. The correct approach involves cleaning the door, lightly sanding the surface, applying a primer specifically designed for the door material, and then painting with a suitable exterior paint for GRP or the specific type of composite material.

How does a composite front door compare to an aluminium one in terms of design and functionality?
Composite front doors offer a wider range of design options with realistic woodgrain finishes and are praised for their superior insulation properties. Aluminium doors, on the other hand, are recognised for their sleek and modern appearance as well as their strength and security features. Have a look at them here.

What are the principal differences between a composite door and traditional wooden doors?
Composite doors outperform traditional wooden doors in terms of thermal efficiency, security, and durability as they do not warp, crack, or require regular maintenance like traditional timber. They also offer enhanced energy efficiency and are often designed to replicate the aesthetic of wood.

Colin Greenslade
Written by Colin Greenslade
I'm the founder of Colin's Sash Windows. I disrupted the sash windows market in the UK in 2014 by introducing fixed prices for uPVC sash windows in the UK. Before this they were generally only available at very high prices through window installers. Today our business is one of the market leaders in supply only windows, doors and roofs in the UK.

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