A SERVICE YOU CAN TRUST FOR THE HOME YOU LOVE.
Exquisitely made & expertly installed windows & doors since 1989
Transform Your Home with Stylish Bifold Doors
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for your bi-folding door
Sapphire Windows Bi-folding Doors are made to measure and totally bespoke to reflect your needs.
Bi-fold doors have become increasingly popular, becoming the staple for new builds and renovation works. Bi-folding doors are designed to open your home up to the outside world, creating a bright and spacious atmosphere.
Our Bi-folding doors can be made up to 3000mm High, with a maximum sash width of 1200mm. Given that our doors come with a slim profile, you will truly feel that you are bringing the outside in.
With the enhanced requirements of Building Regulations, the SUNFLEX SF75eco offers the ideal combination of advanced thermal performance and stunning appearance. When stacked back the doors allow you to bring the outside in, creating completely unobstructed openings to connect your home and garden. When closed the advanced design and attention to detail help keep your home warm and the worst of the weather out.
The SF75eco is manufactured with slender aluminium frames, featuring a patented 44mm thermal break, and is packed full of unique features not found on any other folding door on the market.
Designed to be the most thermally-efficient bifold door available in the UK, the SF75eco offers Passivhaus standard thermal performance and is specifically manufactured to accommodate a triple glazed sealed unit, and thanks to its advanced thermal break technology it can achieve an incredibly low U-value from just 0.8W/m²K† (based on a centre-pane of 0.5W/m²K) whilst maintaining the same usability and slender appearance that SUNFLEX UK doors are renowned for.
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for your bi-folding door
Don’t Settle for Inefficient Doors
High energy bills and uncomfortable living spaces could become your new normal if you choose to ignore the benefits of stylish, energy-efficient doors.
- Drafts ruining your comfort at home?
- Tired of bulky doors obstructing beautiful views?
- Struggling to find stylish door options.
- High energy bills eating into your budget?
- Limited indoor-outdoor living space?
- Seeking a door that blends functionality with design?
- Missing out on energy efficiency advantages?
- Disappointed with previous door renovations that fell short?
- Concerned about high installation costs
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for energy-efficient bifolding doors.
Transform Your Space with Energy-Efficient Bifold Doors
Lower energy costs and enhance your home’s style effortlessly.
- Enjoy a stylish, energy-efficient entrance to your garden.
- Enjoy seamless transitions between indoors and outdoors.
- Reduce energy bills with modern insulation technology.
- A commitment to quality with our 10-year insurance backed guarantee.
- Installation by our expert, directly employed team.
- Trust our 35 years of expert craftsmanship.
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for energy-efficient bifolding doors.
We’re Here to Help You Upgrade Your Home
With 35 years of experience and 100% customer satisfaction, we understand your needs.
Windows and doors are an important investment, so it’s completely natural that you would want to know you can trust your installer. We’re very proud to have maintained our reputation for nearly 35 years, but you don’t need to take our word for it – see below how our customers have rated us with independent review companies
35 Years of Expertise
Since 1989, we've been dedicated to quality and customer satisfaction.
100% 5-Star Reviews
Our clients consistently praise our exceptional service and products.
Directly Employed Installers
Our products are fitted by exceptional installers who have a great deal of expertise.
"Superb work. absolutely delighted with the product and the workmanship. I highly recommend this company - Sapphire Windows, Ammanford. Thank you Russell, Wayne and Dale"
Marion Jones
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for energy-efficient bifolding doors.
3 Simple Steps to Upgrade Your Home
Enjoy your new bifolding doors without the hassle.
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for energy-efficient bifolding doors.
Upgrade your doors to enhance your living space.
Experience the difference today.
Are you tired of dealing with inefficient, draughty patio doors that drive your energy bills sky-high? At Sapphire Windows & Doors, we understand how frustrating it can be to live with outdated designs that compromise your comfort. That’s why we offer stylish energy-efficient aluminium bifold doors that not only enhance your home’s aesthetic but also significantly reduce your energy costs. With over 35 years of industry experience and 100% five-star customer reviews, we are trusted door specialists ready to guide you through a seamless process. Enjoy a beautifully modern living space that connects you with the outdoors, and feel proud of a home that is both striking and practical. Request a quote now to start your transformation.
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for energy-efficient patio doors.
The Specification
SF75 eco
Bi-Fold Door-
117mm sightline
-
75mm frame depth
-
From 0.8 W/m²k u-value (triple glazed)†
-
From 1.3 W/m²k u-value (double glazed)†
-
1200mm maximum panel width
-
3000mm maximum panel height
-
Water tightness to 900Pa (Class 9a)*
-
Air permeability to 600Pa (Class 4)*
-
Unique locking panel catch
-
Low threshold or weathered track options
-
Double rebated frames
* Water tightness and air permeability test performance is dependent upon a number of factors including system track option, system configuration and panel sizes.
† Thermal performance is dependent on glass specification..
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for your bi-folding door
Key Design Features
Industry leading thermal efficiency
Whilst you’ll dream of warm sunny days and opening your bifold doors up to step out on the patio, we know that when the doors are closed keeping your home warm and comfy is just as important. That is why offer SUNFLEX aluminium bifold doors that offer industry leading thermal performance standards.
The unique frame design of the SF75eco allows for better thermal performance with double glazing that other bifold doors can achieve with triple glazing, with the system even capable of achieving Passivhaus standards of efficiency
Keep the outside out
When it comes to bifold doors it is not just about keeping the warmth in, it is also about keeping the weather out which is why our bifold doors undergo rigorous independent weather testing in laboratory conditions to test their protection against air, water and wind.
Thanks to double rebated seals, not often seen on a bifold, the SF75eco can be designed to offer industry leading protection from the elements, ideal for everyone but particularly important for those in rural or coastal locations.
Complete peace of mind
Keeping your home safe is at the core of the design of SUNFLEX bifold doors. With minimal hinge design and a multi-point locking system with shoot-bolts that extend into the top and bottom of the track and espagnolette locks securing the lead door in place.
Our bifold doors are all designed to comply with PAS 24 testing to meet the security requirements of Building Regulations Document Q* along with holding the prestigious Secured by Design™ award to meet the police preferred specification for security.
Innovative locked 'part-vent' position
The innovative design of SUNFLEX bifold doors means they are capable of achieving things that no other folding door can; one example is the part-vent position.
Without opening the main door, it is possible to turn the handle on one of the intermediate doors, partially opening the panels outwards to allow for ventilation – without needing to fully open a door.
Exclusive antiSLAM panel catch
A panel catch that holds the doors open is a crucial part of any bifold door, whilst some systems use a basic magnet, the exclusive SUNFLEX antiSLAM panel catch has been perfected over more than 30 years of research and development.
The innovative catch holds the lead panel in place as the doors are folded open, preventing the panels from accidentally slamming shut in the wind and keeping you, and the door system itself, safe. The innovative catch also ensures the doors are operated correctly, protecting the hinges and hardware and ensuring the doors continue to operate perfectly, time-after-time, year-after-year.
Hidden in plain sight
The SUNFLEX bifold door handle is one of the exclusive features that really shows the attention to detail that has gone into the development of the system.
Whilst most other bifold doors use a basic backdoor handle, the exclusive colour-matched inline SUNFLEX handle is designed to sit completely within the outline of the frame – whether it is opened or closed. This ensures that you get more view through the glass with less interruption.
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for your bi-folding door
Your journey to new bi-folding doors
Our Process In 5 simple steps
Our design team have extensive training in all our products and will help you choose the perfect aluminium bifold doors for your home.
You’ll get a visit from our technical surveyor who will take the measurements that we use to manufacture your new aluminium doors.
Your new aluminium doors will be expertly fabricated to your specification.
Our experienced fitters will arrive at your property to install your new aluminium doors.
Have peace of mind knowing your new doors are covered by our comprehensive 10 year guarantee & our FENSA insurance backed 10 year warranty.
Our design team have extensive training in all our products and will help you choose the perfect aluminium bifolding doors for your home.
You’ll get a visit from our technical surveyor who will take the measurements that we use to manufacture your new aluminium doors.
Your new aluminium doors will be expertly fabricated to your specification.
Our experienced fitters will arrive at your property to install your new aluminium doors.
Have peace of mind knowing your new doors are covered by our comprehensive 10 year guarantee & our FENSA insurance backed 10 year warranty.
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for your bi-folding door
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for your bi-folding door
In most instances, It is also possible to have integral blinds fitted within your bi-folding doors.
Our blinds are easy to use without interfering with the action of the bi-fold door. They are also maintenance-free.
The blinds contribute to reducing the solar glare and can increase the u-value of the glass.
Our blinds are also available in a number of colours to perfectly compliment your home.
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for your bi-folding door
As with all our Aluminium products you have the option of any RAL Colour, including Dual Colour to complement your inside interior and exterior colour palette.
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for your bi-folding door
Complimentary Aluminium Products
Call us now on 01269 596480 for a free no obligation quote, or click below to book a free no obligation quote for your bi-folding door
Download Our FREE Brochures
"Very easy process from start to finish. Both Russell and Shaun were very helpful and the two gentlemen who fitted the windows were pleasant and tidy! We wouldn't have any qualms about recommending Sapphire Windows to anybody else"
Sarah Elvy 5 Stars