Transform your living space with our versatile bi-fold doors, the perfect blend of style, security, and functionality. Ideal for both residential and commercial properties, these doors feature a unique folding and sliding mechanism that maximises space and provides unrestricted access to your garden, patio, or adjoining rooms. Whether you’re looking to create an open-plan living area or simply want to let in more natural light, bi-fold doors offer a sleek and contemporary solution that enhances any space.
Materials and Options

Hipca Gloss White

Jet Black 9005

Paragon Metallic Bronze

Paragon Metallic Silver

Paragon Metallic Black

Pastel Turquoise 6034

Chocolate Brown 8017

Pure White 9010

Squirrel Grey 7000

Agate Grey 7038

Anthracite Grey 7016

Cream 9001

Contora

Stippolyte

Cotswold

Digital

Everglade

Oak

Pelerine

Warwick

Taffeta

Sycamore

Arctic

Autumn

Minster

Mayflower

Chantilly

Flemish

Florielle
SLIM SIGHTLINES
138mm
sash to sash
110mm
sash to outer frame
MAX
Height
2.6m
Width
6.5m
Weight per sash
120KG
CONFIGURATIONS
Single
French
Folding
up to 7 pane
U-VALUES
1.4 U-value
W/(m²K)
Double glazed
1.0 U-value
W/(m²K)
Triple glazed*



Our bi-fold doors are designed to withstand the elements. Featuring advanced weather seals and durable materials, they offer excellent resistance to wind, rain, and other harsh weather conditions. This ensures that your doors will continue to operate smoothly and look great, no matter the weather, providing you with peace of mind and long-term value.

Why Choose Northumberland Glass?
With over 30 years of experience, Northumberland Glass is your trusted provider of high-quality bi-fold doors. We take pride in delivering exceptional products and services, ensuring that your new doors not only enhance your home’s appearance but also improve its functionality and security. Our expert installation team works with precision and care, guaranteeing a flawless finish that will stand the test of time.

Seamless Indoor-Outdoor Living
Energy efficiency is a key consideration with our bi-fold doors. Engineered with advanced insulation technology, these doors help to maintain a comfortable temperature in your home, regardless of the season. The high-performance glazing options reduce heat loss in the winter and minimise heat gain in the summer, contributing to lower energy bills and a more sustainable living environment.
Bi-fold doors aren’t just for homes; they’re also an excellent choice for commercial properties. Whether you’re looking to open up a restaurant to an outdoor dining area or create a flexible office space, bi-fold doors offer the versatility and functionality needed in a commercial setting. Their sleek design and ease of operation make them an attractive and practical option for a variety of business applications.
Accessibility is another advantage of bi-fold doors. When fully opened, they provide a wide, unobstructed entrance, making it easier for people to move between spaces. This feature is particularly beneficial for homes or businesses that require wheelchair access or need to accommodate high foot traffic, ensuring that everyone can move freely and comfortably through your space.