If you’ve ever had misted double glazing or noticed a draught sneaking in through your window, you might’ve come across the term swiggle strip. But what exactly is it, and can you replace it yourself? Let’s break it down in plain English, perfect for any homeowner in Dorset – from Bournemouth to Ferndown, Poole to Wimborne.
A swiggle strip is a type of spacer bar that sits between the two panes of glass in a double-glazed unit. It’s designed to hold the panes apart evenly and seal in the insulating gas (like argon) that helps regulate temperature. Think of it like the unsung hero of your double glazing – hidden from view but crucial to keeping your windows efficient.
The name “swiggle” comes from the wiggly pattern of sealant applied during manufacturing. This design helps improve adhesion and reduce the chance of gas leakage or moisture getting in.
Modern windows might use metal spacers or “warm edge” technology instead, but swiggle strips were commonly used in uPVC windows throughout the late 90s and early 2000s – and many Dorset homes still have them in place today.
A few signs your swiggle strip or the unit itself may be failing:
Condensation or misting between the glass panes
Drafts even when the window is shut
Higher energy bills without explanation
The window looks cloudy or fogged
If you’re searching for terms like “misted double glazing repairs near me” or “replacement double glazed units”, you’re probably already halfway to diagnosing the issue.
If you’re curious about the process (or thinking of giving it a go), here’s a simplified breakdown:
Measure the existing unit – height, width, and depth. Get this wrong, and your new unit won’t fit.
Remove the window beading – this often involves carefully levering it out with a flat tool. Be careful not to crack it.
Take out the old glass unit – it should slide out once the beading is removed. Handle with care.
Insert the new sealed unit – making sure it’s the correct size and orientation.
Reinstall the beading – usually by tapping it gently back into place.
Simple in theory, but not without its risks – especially when handling glass.
Many homeowners search phrases like “uPVC window repairs near me”, “window repairs Poole”, or “double glazing repairs Bournemouth” hoping for a simple fix. But unless you’re experienced and confident with tools, glass, and window systems – it’s often best to leave it to the pros.
Not only can you damage the beading or frames, but incorrectly installed units can result in leaks, draughts, or even shattered glass – all of which could cost more to fix than if you’d hired a specialist to begin with.
With energy costs on the rise and unpredictable weather hitting homes across Dorset – from Ringwood to Verwood, Christchurch to West Moors – poorly sealed windows can make a big dent in your comfort and your wallet.
A failed swiggle strip or seal means reduced thermal efficiency, more condensation, and less insulation – especially important during winter months or hot summer days when you’re trying to keep the heat out.
You can replace the entire window unit yourself if you’re careful and capable – but for most homeowners, especially those unfamiliar with double glazing repair, it’s a job better left to experienced hands.
So next time you notice misty glass or feel a chill near your windows, remember: it could be the humble swiggle strip causing trouble. And while you might not fix the strip itself, knowing what it is and what to look for means you’re one step ahead.
Whether you search for “window repair near me” or “double glazing Ferndown”, make sure you get a trustworthy opinion before attempting any major fixes.