A Unique Degree of Quality

Offering an innovative and unique take on the classic bi-fold door design, our thermally efficient designed to offer you more for your home. These wide span, thermally efficient doors are designed to ensure you enjoy the best of performance and appearance. This means that you’ll be able to enjoy all the benefits of aluminium, with enhanced thermal efficiency for better home comfort.

These bi-fold doors are manufactured with an innovative orange thermal core, which is hidden away to maintain aesthetics and offer a standard of thermal efficiency that is 25% more than standard aluminium systems. With this in mind, you’ll be able to enjoy a higher degree of heat retention to keep the winter winds at bay, reduce heating costs, and lower your carbon footprint.

Alongside this, these bi-fold doors excel in all other areas that will ensure your home is warm, safe, and comfortable place to be. With these doors, you’ll be able to enjoy unrivalled standards of security and durability that will continue to keep you safe over many years. When you choose Synergy, there is no reason to settle for anything less than the best for your home.

Bifold Door Features

Guaranteed Standards

These bi-fold doors are accompanied by a comprehensive 10-year guarantee, giving you the peace of mind that comes with modern standards of quality. This means that our bi-fold doors will be able to bring quality and comfort to your home long after their initial installation. We’ll be on hand to ensure that they prove to be a worthwhile investment for your Darlington home.


We know that each home is different, and that requirements are going to vary accordingly. With this in mind, our bi-fold doors can be tailored to perfectly suit your home. With this in mind, you’ll be able to choose how many panels we install, as well as the opening configuration. Whether you want your doors to open inwards, outwards, from a certain side or out from the middle, we can help.

Weather Protection

These doors are triple-sealed with contact weatherstrip gaskets, which work to eliminate draughts and guarantee excellent weathertightness. With this in place, you’ll be able to enjoy comfort all-year-round even during bad weather. This design also avoids the need for overrun gaskets, which can have a negative effect on the look and health of the door over time and use.

Unique Bi-Fold Doors

WarmCore bi-fold doors are designed to offer the ultimate in high-tech elegance. They are manufactured using precise methods, which allows for a high quality surface finish and slim sightlines. They utilise composite materials to bring the best of each to your home, resulting in a product that offers unrivalled standards of architectural design and sustainability.

For your peace of mind, these doors are fitted with a 5 point lock. This system runs the full length of the door sash, working alongside the high strength hinges and rollers to ensure high levels of security are kept consistent across the frame. They are accompanied by an ERA Five Star Security Guarantee and can be amended to meet the stringent Secured by Design standards.

To suit all homes, both new and old alike, our bi-fold doors can be fitted in a choice of four externally styled profiles. This includes Pencil Round, Chamfered, Squared, and Decorative. You can also choose from a range of threshold options, all of which are Part M compliant and fully thermally efficient. You’ll be able to bring a personal touch to your home, without missing out on quality.

Colour Options

These doors can be decorated in a selection of sleek and modern colours, including White, Cream, Black, and Grey. You can also choose from a selection of hardware colours, including Matt Black, Satin Silver, and Brushed Graphite. You’ll be able to customise these doors right down to the detail, so you can rest assured you’ll be getting the perfect fit.

View the WarmCore Brochure

View the Origin Brochure

Bifold Door Prices

To get a free, instant, and competitive WarmCore bi-fold door price, give our online quoting engine a visit. This modern tool enables you to follow a simple step by step process, inputting your specifications along the way to get a tailored price.

You can also get in touch with us via our online contact form. A member of our friendly team will be more than happy to offer you a quote through this method, or we can be on hand to answer any questions you may have regarding our bi-fold doors, prices, or other products



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