Bifold and Sliding Doors: Choosing, Ordering, and the Risks You Need to Know
PremiumHow to choose between bifold and sliding doors for your extension, protect your money from supplier failure, and get the installation right. Aluminium bifolds from £3,150–7,200.
Do this first:
The doors across the back of your extension will be the most expensive single item you order. More than the steels. More than the roof. And unlike those items, the supply chain for bifold and sliding doors is where homeowners lose the most money on an extension project. Suppliers go bust, deposits vanish, and the replacement order costs 30% more because you're ordering under pressure.
This leaf covers the full journey: choosing between bifolds and sliders, getting the structural opening right, finding a reliable supplier, protecting your money, and making sure the installation doesn't leak.
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