Guide to Buying a Bifold Door

For good reason, bifold doors have grown in popularity in recent years – especially aluminium ones.

These innovative doors have the potential to completely transform living areas by allowing for a seamless indoor-outdoor transition and enhancing natural light. 

If you’re thinking about getting a bifold door for your home, this comprehensive guide will give you vital insight into the journey to buying a bifold door and the considerations and preparations which should take place before purchasing.

The Bifold Door Basics

Bifold doors are made of folding panels that move and stack on one or both sides to create a large opening that connects interior and outdoor spaces. They are frequently used in areas that require a big and versatile opening, such as patios, conservatories, and extensions. The mechanism that allows for smooth and effortless folding and sliding is what distinguishes them.

White meeting room bifold doors

Advantages of Bifold Doors

There are multiple benefits to bifold doors, including:

Indoor-Outdoor Transition

One of the most significant benefits of bifold doors is the seamless indoor-outdoor transition they provide. You may appreciate the beauty of your surroundings while creating a sense of freedom and openness by opening up your living spaces to the outside.

Maximise Natural Light

Furthermore, bifold doors maximise natural light, improving the overall aesthetic appeal of your home and creating a welcoming atmosphere.

Value Addition

Investing in bifold doors can improve the value of your home dramatically. According to studies, residences with bifold doors can attract a 10% premium above those without. This makes it a great addition for homeowners and property developers wishing to boost the market appeal of their property.

Disadvantages of Bifold Doors

While bifold doors have various advantages, there are also potential drawbacks to consider.

Installing Bifold Doors

Certain architectural conditions, such as limited wall space or uneven flooring, may present challenges when installing bifold doors. To ensure a flawless integration, analyse the feasibility of installation and consult with professionals.

Temperature Concerns

When it comes to bifold doors, insulation and energy efficiency are important factors to consider. Modern bifold doors, on the other hand, are built to fulfil high thermal performance criteria, thanks to developments in technology and materials. Proper installation and the use of high-quality materials can successfully answer any worries about keeping your living spaces at a suitable temperature.

Material Considerations

When it comes to selecting the best material for your bifold doors, aluminium is the clear winner. Aluminium bifold doors provide superior strength, durability, and aesthetic appeal. Their small form enables for large glass panels, which maximise visibility and create a clean and modern appearance. Furthermore, aluminium is a renewable and recyclable material, making it an environmentally beneficial choice.

Wood bifold doors, on the other hand, have a more natural visual appeal but require more upkeep than aluminium. Although composite or UPVC doors are less expensive, lifetime issues should be considered, as these materials may not be as durable as aluminium.

Anthracite bifold doors between a kitchen, patio, and lawn

Bifold Door Systems

It is critical to select the right door system to ensure optimal performance and functionality. Thermal efficiency, sight-lines, security, and ease of operation should all play a role in your decision.

Purchasing a bifold door system with strong locking mechanisms, such as six-point locking, an Ultion 3-star cylinder, and a PAS 24 certification, ensures the highest level of security for your home.

Thermal Efficiency

The insulation quality of bifold doors is determined by their energy rating or U-value. U-values measure the rate of heat transfer, with lower U-values indicating better insulation. Door energy ratings of C or above indicate good thermal value – the higher the better.

When comparing bifold doors based on U-values, it’s important to consider the overall door U-value (rather than just the glass), which takes into account not only the glass but also the frame and seals.

Opting for bifold doors with low U-values can help improve energy efficiency and reduce heating and cooling costs.

Practicality and Configuration

Considerations such as top hung or bottom running bifold doors, inward or outward opening, and the inclusion of a master door (traffic door) can significantly impact the practicality of your bifold door system.

Bottom running bifold doors offer various benefits, including easier operation and increased stability. The choice between inward or outward opening should be based on the available space and the desired aesthetic.

A master door provides convenience for regular daily use without the need to open the entire bifold door system. This can be particularly useful when you’re looking for quick access without compromising thermal efficiency.

Size and Fit

Proper sizing and fit are crucial for the optimal functioning of your bifold door. The general rule of thumb is that the bifold door should be slightly smaller than the opening to allow for smooth operation and proper sealing.

Consulting with professionals during the measuring and installation process ensures a precise fit, preventing any issues down the line.

Optional Extras

Integrated blinds are a popular add-on for bifold doors that provide both aesthetic and maintenance benefits. These blinds are elegantly integrated into the glass components, offering privacy and shading without the need for external blinds or curtains. Handle and hinge customisation options allow you to personalise your bifold door to match your aesthetic choices.

What to Look for in a Bifold Door

When considering different bifold doors, it is essential to examine key features and attributes. Balancing aesthetics, functionality, and budget is important to ensure a door that meets your requirements. Look for features such as high-quality materials, energy-efficient glazing, robust security measures, and user-friendly operation.

Installation Considerations

DIY installation may be a feasible option for individuals with the necessary experience and skills, but it’s recommended to consult professionals to avoid potential problems and ensure a proper fit and operation. Understanding lead times is also important to set expectations based on the manufacturers’ production and delivery schedules.

Installation of anthracite bifold doors

Cost Considerations

The price of bifold doors can vary depending on factors such as materials, size, and customisation options. While it’s tempting to focus solely on the initial investment, considering the long-term value is paramount.

Investing in high-quality bifold doors that offer durability, energy efficiency, and enhanced security will provide a lasting value for your property.

Maintenance Tips

Regular upkeep is essential for the longevity and optimal performance of your bifold doors. Cleaning the frames and glass periodically and lubricating the moving parts will help prevent any potential issues and ensure smooth operation. Addressing any issues promptly, such as adjusting hinges or replacing seals, is crucial to prevent further damage.


In today’s eco-conscious world, choosing sustainable alternatives is becoming increasingly important. Aluminium bifold doors play a significant role in promoting sustainability. They are not only durable and long-lasting but also highly recyclable. By opting for aluminium, you can contribute to reducing environmental impact without compromising on style and functionality.


To summarise, purchasing a bifold door requires careful consideration of numerous factors.

By studying the fundamentals, benefits, and drawbacks of bifold doors, as well as material considerations, security concerns, and thermal efficiency, you can make an informed decision that meets your aesthetic preferences, practical needs, and budget.

To maintain the longevity and best operation of your bifold doors, invest in a dependable and expert installation and prioritise regular maintenance.

The transforming effect of bifold doors on your living spaces will increase the aesthetic appeal of your property while providing a seamless connection between your indoor and outdoor environments.