French Doors vs Bifold Doors: Understanding the Cost Differences
When you’re planning to upgrade your home with new external doors, the decision between French doors vs bifold cost considerations...
Read MoreTimber bi folding doors give you the warmth of natural wood, the practicality of a wide-opening external door system, and a look that no aluminium or uPVC product can replicate. If you are searching for wooden bifold doors that are built to measure, finished to a high standard, and properly installed, here is everything you need to know.
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What are timber bi folding doors?
Wooden bifold doors consist of several individual panels that fold in a concertina action, stacking neatly to one side when open. They run on a top-hung track system, which means the weight is carried above rather than below, giving you smooth, low-effort operation and a clean threshold at floor level.
When fully open, they create a wide, unobstructed aperture between your interior living space and your garden or terrace. When closed, they look like a considered piece of joinery: solid, attractive, and built to last.
They work beautifully on rear extensions, timber orangeries, open-plan kitchen-diners, and timber conservatories. Anywhere you want the boundary between inside and outside to disappear.
Hardwood species: oak, Accoya and engineered timber
The wood species you choose shapes everything, durability, grain character, maintenance requirements and price.
| Species | Type | Best for | Maintenance |
| Oak | Hardwood | Period and contemporary homes | Periodic re-oiling or staining |
| Accoya | Modified timber | Low-maintenance external use | 50-year guarantee available |
| Engineered hardwood | Composite core | Stability in wide spans | Factory-finished options reduce upkeep |
Oak is the most popular choice. Its prominent grain and light, warm colouring make it a natural match for both traditional and modern interiors. As a hardwood, it is strong, durable, and holds fixings well, qualities that matter on an external door used daily.
Accoya is a modified timber that resists rot, swelling and insect attack far better than untreated softwood. At Reddish Joinery, Accoya products carry a 50-year guarantee, a level of confidence you will not find on a standard wooden door.
An oak veneer over an engineered hardwood core is another popular option. It gives you the authentic grain of real wood on the surface with the dimensional stability of an engineered structure underneath, particularly useful in wide bi-fold configurations where panel movement matters.
Thermal performance of wooden bi folding doors
Thermal performance is one of the strongest arguments for timber over aluminium in a bi-fold door frame. Wood is a natural insulator. Its cellular structure traps air, slowing heat transfer in a way that a bare metal frame cannot without a thermal break.
For homes in Cheshire and Greater Manchester, where cold winters are the norm, a thermally efficient set of wooden external bifold doors is a practical investment not just an aesthetic one.
Pilkington glass is specified in Reddish Joinery’s door range because it is designed to bring natural light in, reduce noise, and improve thermal insulation, three things that directly affect how comfortable a room feels day-to-day.
Bespoke external bifold doors: why made-to-measure matters
Off-the-shelf bi-folding doors are built to standard panel sizes. Bespoke external timber bifold doors are built to your opening. That difference matters most when:
- Your aperture is wider or taller than standard
- Your property is a listed building or in a conservation area
- You want the door profile to match existing timber windows or French doors elsewhere in the home
- You need a specific finish, factory-applied white, grey, or a natural stained coat rather than paint
At Reddish Joinery, every door is handcrafted and finished in our own manufacturing facility. We do not outsource production. Our CNC router and skilled joiners work to exact measurements taken by our surveyor on a dedicated home visit, so the fit is precise from day one.
Finish options for wooden bi folding doors
Factory-applied finishes have improved considerably. A factory coat applied under controlled conditions bonds more consistently than site-applied paint and is far less likely to peel, blister or fade unevenly.
Your main finish choices for external timber bifold doors are:
- Natural stain or oil — shows the grain, needs periodic re-application
- Factory-applied opaque paint — white, anthracite grey, and RAL colours available
- Unfinished — gives you full control to paint or stain on site before or after installation
If you are matching an existing colour scheme or want your bifold doors to coordinate with timber windows on the same elevation, talk to our team about finish matching before you order.
Why choose Reddish Joinery for your timber bifold doors?
Reddish Joinery has been a family-run business since 1967, now in its third generation. That means over five decades of experience manufacturing and installing bespoke timber doors across Cheshire and the North West.
What sets us apart:
- All products manufactured in our own Stockport facility, no outsourcing
- FENSA-approved installers
- All timber products FSC certified for sustainability
- Up to 10-year insurance-backed guarantee on every installation, with Accoya products guaranteed for 50 years
- 90% of workshop waste is recycled rather than sent to landfill
Our Sale showroom is open Monday to Saturday — no appointment needed. You can see the quality of our timber products in person, ask questions with no sales pressure, and get a feel for finishes and hardware before you commit to anything.
Ready to explore bespoke timber bi folding doors for your home? Get in touch with the Reddish Joinery team on 0161 969 7474 or visit our showroom at Douglas House, 193 Cross Street, Sale, M33 7JH.
