When it comes to replacing uPVC window handles, one of the most common questions we’re asked is: “Are they a standard size?” The answer is yes and no. While many uPVC window handles share common measurements, there are a few important differences you’ll need to check before ordering a replacement.
🔑 The Most Common Standard: 43mm Spindle Centres
Most modern Espag uPVC window handles (the type that operate a multipoint lock inside the frame) have a 43mm screw hole centre. This measurement refers to the distance between the two fixing screws. Because 43mm has become the industry standard, most replacement Espag handles will fit straight into existing uPVC windows without modification.
👉 Browse our full range of uPVC Espag Window Handles.
🔩 Spindle Lengths – The Key Difference
While screw centres are usually standard, the spindle length (the square bar that goes into the locking mechanism) varies. Spindles can range from 10mm up to 55mm, depending on the window. Getting this measurement right is crucial for smooth operation:
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Too short → the lock won’t engage properly.
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Too long → the handle may not tighten against the frame.
👉 Tip: Simply measure your old spindle with a ruler before ordering. Many handles come with multiple spindle lengths included.
🪟 Other Types of uPVC Window Handles
Not all uPVC window handles are Espag. Other styles include:
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Cockspur Handles – Often found on older windows, with varying step heights (commonly 9mm, 17mm, or 21mm).
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Tilt & Turn Handles – Typically used on European-style windows that open inwards; these still often use 43mm centres but require longer spindles.
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Sash Window Handles – For vertical sliding uPVC sash windows, with different fixing styles altogether.
👉 Explore our Cockspur Window Handles and Tilt & Turn Handles for more options.
✅ How to Check Your Window Handle Size
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Measure the screw centres (usually 43mm for Espag).
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Measure the spindle length from the base of the handle to the tip.
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Identify the handle type – Espag, Cockspur, Tilt & Turn, or Sash.
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Match your measurements to a replacement handle.
Final Thoughts
So, are uPVC window handles a standard size? The screw hole centres are usually standard at 43mm, but the spindle length and handle type can vary. Always check both measurements before buying to ensure a perfect fit.
👉 Ready to replace your handle? Shop our wide range of uPVC window handles and find the perfect match for your windows today.
