If you're commissioning uPVC windows, these are the installation mistakes worth watching for.
You don't need to be an expert to spot the signs — a frame that isn't level, gaps that get filled rather than sealed, or a window that doesn't close smoothly on the day are all early warnings.
A competent installer welcomes these questions. If someone bristles at being asked whether the frame is square or the reinforcement is in, that itself tells you something.
Frames not level or square, gaps filled rather than properly sealed, windows that don't operate smoothly on day one, blocked drainage, and missing reinforcement on large frames.
Yes — check frames are level, operation is smooth, and sealing is complete rather than patched. A competent installer welcomes the questions.
With us, you call one team — we fabricate and fit, so we service our own work.
Related guides covering this topic from other angles — different products, applications, or contexts.
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