11th January 2023

Best Bifold Doors For Home Renovations and New Builds

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Posted by: tina

best bifolds for extensions

Thames Valley Windows offers architects and contractors a comprehensive range of the best bifold door systems designed with the latest advancements that provide outstanding thermal performance suitable for high-end residential and commercial projects.

We have been designing and installing architectural glazing solutions throughout the South East for nearly 40 years. As an independent family business, nothing is more important than our reputation and standing by our values and service.

We pride ourselves on customer satisfaction and building lasting relationships with our customers based on ethics, trust, and honesty. We take time to listen to our customer’s needs and take them on a journey that goes the extra mile. Many have purchased multiple windows and doors from us and continue recommending us to family and friends.

We have built our reputation as experts in the glazing industry thanks to our dedicated team of designers, surveyors and installers.

best bifold doors

We enjoy and love what we do and have an abundance of experience in the glazing industry that enables us to manage projects, large or small, of varying scale and complexity. We ensure the whole project is managed smoothly from beginning to end, and we are confident that we can meet and exceed your expectations.

Bifolding doors are often one of the wow factor features of the glazing package for any project. The ability to give a 90% opening is a significant benefit over sliding doors. With the doors stacked to one end, the space does open up to the outside and will often give the ‘WOW’ factor. We can also offer cornerless and glazed corner solutions for those who want to maximise ‘bringing the outside in!’

Here at TVW, we are well-poised that we can meet and exceed your expectations. We have innovative design options to suit every project and cover a range of budgets.

Each system is meticulously engineered to satisfy even the most demanding site conditions and requirements, pushing the boundaries of modern architectural design.

*GUIDE PRICE – We have given indicative prices for each product based on the following specifications:

  • Five panels – 4500mm x 2200mm with flush threshold
  • Solarlux – Standard Colours including White/Black/Grey + 30 other options.
  • ALUK – Standard Colours White/Black/Grey only. Surcharge for other RAL colours.
  • 4mm Toughened Low-e glass
  • Fitting Included

Prices as of 1/12/2022 – all are subject to change


This perennial favourite from Solarlux is now the entry point to their range. These bespoke doors offer the best balance between superb quality and value to provide a visually impressive bi-folding door system for new builds or home renovations at a competitive price.

SL60 is supremely engineered for precision, with sightlines of just 130mm. The SL60 can be designed with a maximum panel height of 2700 mm and 1000 mm in width.

One of the best bifold door systems that are designed with precision engineering for smooth and easy operation and benefits from a flush track, creating a seamless transition from inside to outside.

Case Study – Our Gable end extension project in Basingstoke is an excellent example of Solarlux SL60E bi-folding Doors for modern and clean aesthetics. The inherent strength and engineering quality of Solarlux products mean that there can be a minimal coupling bar between the vertically stacked units – no need for an RSJ.

Guide Price – £9,800 + VAT*

Best bifold doors gabl e end extension


Ecoline is an award-winning bi-folding door system that combines the best technology and state-of-the-art design to create an impressive and visually stunning door. A combination of best-in-market slim sightlines with modern functionality offering exceptional longevity.

Ecoline doors are modern and high quality and offer high-performance thermal insulation. They are designed with super strong hinges making them more reliable when going wider and taller.

The system offers a choice of floor tracks, openings and over 32 colour options. Decorative bars can be added to your doors as an option, and the doors can be designed with a moving corner post to maximize that open feeling.

With an ultra-slim sightline of just 99mm, the Ecoline can be designed with a maximum panel height of 3000 mm and 1000 mm width to allow for more glass and less frame.

Oversized Sliding Sash Windows and Heritage Bifold Doors for Single Storey Extension, Reading
Oversized Sliding Sash Windows with The Best Bifold Doors for Single Storey Extension, Reading

Case Study – Our single-storey extension project in Reading is a superb example of Solarlux Ecoline Bifolding Doors finished in a Heritage style. The addition of the flat horizontal bars and the minimal sightline gives a fantastic traditional Crittal look to a modern product.

Guide Price – £10,700 + VAT*

best timber bifolding doors
Double storey extension


Combiline Timber/Aluminium Bi-Folds are aesthetically pleasing and luxurious hybrid door systems.

They are available in sustainably sourced meranti, spruce, oak and pine, adding natural warmth and character to your home.

With a composite construction, this finish provides the best of both worlds; the durability of the external aluminium cladding improves the life span and provides protection against the weather and reduces maintenance, and the natural beauty and timeless aesthetic of timber on the inside. Definitely worth considering if you have composite windows elsewhere – e.g., Internorm or Rationel.

With mullion sightlines of 147mm, the Combiline can be designed with a maximum panel height of 2800 mm and 1000 mm in width to provide a larger glass area and superior insulation.

Case Study – Our contemporary Orangery in Guildford is an excellent example of Solarlux Combiline Bifolding Doors. The homeowners chose beautiful oak frames for the interior to compliment the flooring and furniture, adding a Scandinavian feel to the interior.

Guide Price – £13,400 + VAT*

best timber bifolding doors


Woodline Timber Bi-Fold Doors are absolutely beautiful, made from sustainably sourced natural wood and elegantly crafted with attention to detail.

Available in Meranti, Spruce and Pine as standard or any other wood of your choice. Every piece of wood is unique, of premium quality, robust, resilient and with a guaranteed long lifespan.

Wide-span openings up to a maximum of 15m2. For those who want the modern convenience of bi-folds to blend indoors and outside but with the charm and warmth of wood.

A thermally insulated profile with a sightline of 143mm ensures maximum transparency. The Woodline can be designed with a maximum panel height of 2800 mm and 1000 mm in width.

Woodline is an unrivalled door system. The key design feature that sets the Woodline apart from other conventional wooden bi-folds is the static aluminium structure between the solid wood profiles.

The hinge system of the doors is located on the aluminium section, which is rebated into the timber to ensure smooth operation, adjustability, high-performance security and weather resistance.

Guide Price – £12,200 + VAT*

best bifolding doors


Lumina F82 aluminium bi-folds are a high-performance and energy-efficient door system. They are manufactured to the highest standard with modern technology that exceeds current building regulations.

They are finished with durable powder coating in an array of single or dual colours, premium-grade locks, and distinctive flush pop-out T-handles.

Insulated aluminium profiles are designed with a narrow interlock sightline of just 122 mm. The F82 can be designed with a maximum panel height of 2500 mm and 1200 mm width for large glazed areas.

F82 bi-folds are suitable for cantilevered roofs to open up an entire corner of your room with the floating corner to offer uninterrupted panoramic views.

Aesthetically pleasing and cost-effective aluminium bifold systems suitable for new builds or home renovations

Guide Price – £7,500 + VAT*


Best bifolding doors


AluK BS70 aluminium bi-folds are one of the market-leading energy-efficient door systems. They are designed with highly insulated aluminium profiles and deep polyamide thermal breaks to offer outstanding thermal performance.

Exceptional, innovative design, precision engineered to the highest standard with leading-edge door technology combined to bring a highly versatile bi-folding door solution for new builds or home renovations

The profiles are factory finished with high-quality, durable powder coating in a vast choice of single or dual colours, textures, and marine grades: robust locking mechanisms and distinctive flush pop-out T-handles.

Insulated aluminium profiles are designed with an interlock sightline of 140mm. The BSF70 can be designed with a maximum panel height of 3000mm and 1200 mm width for large glazed areas.

BSF70 are a cost-effective bi-fold door system

Guide Price – £6,300 + VAT*


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