- December 15, 2025|
- Doors|
- sandymount_admin
As the British winter arrives, keeping your home warm and comfortable becomes a real priority. One of the best ways to do this is with folding bifold doors. These doors are not only a stylish addition to your living space but are also designed to offer excellent thermal efficiency, helping to reduce heat loss and lower your energy bills. At Sandymount, we install a range of aluminium bifold doors supplied from Origin, which are built to retain heat while bringing in plenty of natural light, creating a bright and welcoming home all year round.
Thermal efficiency is a measure of how well a door or window keeps heat inside your home. Doors with high thermal efficiency help maintain a comfortable temperature, reduce heating costs and create a healthier indoor environment. Modern bifold doors achieve this through smart design, including thermal breaks and airtight seals that keep cold air out and warmth in.
Introducing bifold doors
Bifold doors are a type of door made up of multiple panels connected with hinges. They fold neatly to one side like a paper fan, giving you the option to fully open up a room. Unlike traditional patio doors or external French doors, bifold doors offer the ability to open up entire walls between your home and garden. They are available in a range of styles and materials to suit any property, whether you want a modern look or something that fits a period home.
Bifold doors are highly versatile. They can be installed in large living spaces or smaller rooms, and the smooth folding operation makes them easy to use every day.
How bifold doors can help you stay warm this winter
At Sandymount, we know that thermal performance is becoming more and more of a key factor for homeowners. Thermal efficiency refers to how well a door keeps heat inside. The more efficient the door, the warmer your home will stay, and the lower your energy bills will be.
Origin bifold doors installed by Sandymount have been specifically designed to provide elite insulation. Each door has a polyamide thermal break that reduces heat transfer, while advanced weather seals stop draughts. For those who want the ultimate in warmth, triple glazing options are available. Origin doors have a certified U-Factor as low as 0.28, making them highly energy efficient. For maximum insulation and performance, the OB-72 collection is ideal with thicker sightlines that help retain heat even in the coldest months.
These doors also maximise natural light, so even in winter your rooms feel bright and welcoming. Large glass panels allow you to enjoy views of your garden while keeping the cold outside. Your home can stay warm and your living spaces comfortable all year round.
Other benefits of bifold doors
Bifold doors offer many advantages beyond thermal efficiency, making them a popular choice throughout the West.
Increased natural light
Large glass doors bring sunlight into dining rooms, living rooms and smaller spaces, reducing the need for artificial lighting during the day.
Smooth operation
Precision-engineered hardware ensures smooth operation, with features like drop bolts and stainless steel hinges for reliability and peace of mind.
Open plan living
Folding doors create an opening between indoor and outdoor areas, perfect for open plan living or garden rooms.
Flexibility for internal spaces
Interior bifold doors, internal folding doors and solid internal bifold doors offer practical solutions to separate rooms without blocking light or making spaces feel smaller.
Added property value
High-quality aluminium doors are a great choice for homeowners looking to improve the appeal and value of their property.
Benefits of aluminium materials for bifold doors
Choosing aluminium for your external bifold doors brings several practical and aesthetic benefits.
Slim sightlines
Aluminium is strong and durable, allowing for slim door frames and large glass panels that bring more light into your home.
Durability
Aluminium resists corrosion and weather damage, meaning your doors will stay looking good for years.
Low maintenance
A simple wipe down is all that is needed to keep them clean and working smoothly, saving time and effort.
Bifold doors from Sandymount Windows and Doors
At Sandymount, all our bifold doors are made to measure and installed by our local specialists. We are proud to partner with Origin, offering a range of aluminium bifold doors across North Wiltshire, Gloucestershire, Oxfordshire and Bristol.
- OB-36 (Soho and Contemporary Collections) – Steel-look option with slim 84mm sightlines, ideal for period homes or industrial style interiors.
- OB-49 (Contemporary Collection) – 110mm sightlines offering modern design and excellent thermal efficiency.
- OB-72 (Contemporary Collection) – Wider 154mm profiles, perfect for larger openings, corner bifold setups and maximum insulation.
Colours
- Over 150 RAL colours with dual-colour options
- Popular shades include Anthracite Grey, Jet Black, Light Silver Metallic, Natural Oak and Golden Oak
- Handles available in steel grey, gold, silver, black and white
FAQs
How do bifold doors improve energy efficiency?
By using thermal breaks, triple glazing and advanced weather seals, bifold doors keep warmth inside while stopping draughts, helping to lower heating bills.
Can bifold doors be used in smaller spaces?
Yes, they can be tailored with a flexible number of panels to fit both large and smaller rooms.
Are aluminium bifold doors easy to maintain?
Absolutely, a simple wipe down is enough to keep your doors looking and operating at their best, making aluminium bi fold doors an ideal solution for busy families.
Can bifold doors be used as internal doors?
Yes, interior bifold doors or internal folding doors offer a practical range of interior folding solutions, creating a seamless transition between rooms without losing light.
Can interior folding door systems be used in smaller rooms?
Yes, interior folding doors and single-leaf doors offer a flexible solution.
Who are Sandymount Windows and Doors?
We are a family-run, independent company with years of experience providing high-quality home improvement solutions. We supply and install windows, various door styles, and extensions in Gloucester, Oxfordshire, Bristol, Gloucestershire, Oxfordshire and surrounding areas. We offer a range of materials, including uPVC, aluminium and composite.
All our installations are done in-house and are FENSA, BFRC and CHAS accredited, with in-warranty repairs and aftercare available for peace of mind. Visit our Cirencester showroom or get in touch to arrange a free survey and expert advice. We offer free no-obligation quotes for all of our products, regardless of if you’re after external doors, internal French doors, etc.
Call 01793 230684 or email windowsanddoors@sandymount.co.uk to discuss your project. Your ideal bifold door is just a call away, keeping your home warm and bright this winter with Sandymount Windows and Doors.
