Installing a spiral duct might seem tricky at first, with all sorts of fittings, connections and diameters involved. But with the right know-how, you'll have an airtight, sturdy duct system up within an afternoon, whether you're running a single spiral duct behind your cooker hood, connecting a duct to your mechanical ventilation unit, or fitting out a whole ventilation system in the loft. In this article, we'll show you step by step how to fit spiral ducts and fittings, how to seal connections airtight, how to easily cut a spiral duct to size, and how to mount it as securely as possible. That way, you can get your spiral duct job done without any hassle, leaks or loose connections.
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Felix Dijkmeijer
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18-08-2026