Condensation trapped inside your double glazing? We replace misted glazed units in doors across Leeds — restoring a clear view for a fraction of the cost of a whole new door.
Why Does Double Glazing Mist Up?
When the seal around a glazed unit fails, moisture gets between the panes and condenses — the classic “misted” look. It means the unit has failed and won’t insulate properly anymore. The fix is a replacement sealed unit, fitted into your existing door.
A Fraction of the Cost of Replacement
There’s usually no need for a whole new door. We measure your existing unit, have a new energy-efficient sealed unit made, and fit it into your current frame — quick, tidy, and far cheaper than starting over.
What Causes Double Glazing Misting?
A sealed double glazed unit is made of two panes of glass held apart by a spacer bar, with the gap filled with air or argon gas and the edges bonded with a primary and secondary seal. That perimeter seal is the weak point. Over time it can fail through age and constant thermal cycling — the glass and frame expanding and contracting day after day — through poor manufacture, or through frame distortion that stresses the edge seal. Once the seal is breached, moist air gets in between the panes and condenses on the cold internal faces of the glass, which is what you see as misting. So double glazing misting is seal failure, not dirt: no amount of cleaning the outside of the window will touch it, because the moisture is trapped inside the sealed unit where you cannot reach it. When persistent double glazing misting never clears, the unit has failed and needs replacing.
Can Misted Double Glazing Be Repaired, or Must It Be Replaced?
If you’re wondering can double glazing be repaired, here’s the honest answer: the sealed unit is replaced, but the window is not. You don’t need a new frame, new sill or any redecorating — we simply remove the failed glass unit and fit a new made-to-measure one into your existing frame. Be wary of drill-and-ventilate “repairs”, where a hole is drilled in the glass, the moisture is dried out and a valve is fitted. These are temporary at best: the seal is still broken, so moisture inevitably returns and the misting comes back. A proper replacement follows a simple process: we survey the window, measure the unit precisely, manufacture a new sealed unit to those exact dimensions, then fit it and re-bead the frame. There’s no redecorating, no new frames and minimal disruption — most jobs are done in under an hour. So if you need to repair blown double glazing, replacing the unit is the lasting, cost-effective fix that restores full clarity and insulation.
Our Misted Glass Replacement Service in Leeds
We replace misted sealed units across Leeds, Bradford, Wakefield, Huddersfield, Halifax and Dewsbury — usually within days of your call. Broken or cracked glass gets priority same-day attention wherever possible. Every replacement unit and all of our workmanship is covered by our guarantee, so you can book with confidence. There’s no need to replace the frame and no mess left behind. Ready to see your windows clearly again? Call 0113 418 0417 for a free quote, or hit the Get a Free Quote button below and we’ll arrange a free survey at a time that suits you.
Can a misted door glass unit be repaired?
The unit itself can’t be repaired — but it can be replaced. We fit a brand-new sealed unit into your existing door frame, which solves it completely.
How much does it cost?
It depends on the size and type of glass. Send us the rough measurements or a photo and we’ll give you a free, honest quote.
Do I need a whole new door?
Almost never for misted glass alone. If the door itself is sound, a replacement unit is all you need.
How long does it take?
We measure up on the first visit, then return to fit the new unit once it’s made — the fitting itself is usually under an hour.
Is the new unit guaranteed?
Yes — every replacement unit we fit is covered by our workmanship guarantee.
What is double glazing misting?
Double glazing misting is condensation trapped between the two panes of a sealed glass unit. It happens when the perimeter seal fails and moist air gets into the gap between the panes, condensing on the cold glass where you can’t wipe it away. Misting means the sealed unit has failed — it’s not a cleaning issue, and it won’t clear on its own. The lasting fix is replacing the sealed glass unit, which we do across Leeds without replacing the frame. Call 0113 418 0417 for a free quote.
Can double glazing be repaired?
Yes — in most cases only the failed sealed glass unit needs replacing, not the whole window or door. We remove the misted or damaged unit and fit a new made-to-measure one into your existing frame, usually in under an hour. This restores full clarity and insulation at a fraction of the cost of full replacement. Call 0113 418 0417 for a free survey anywhere in Leeds.
Can you repair blown double glazing?
Yes. ‘Blown’ double glazing — where the seal has failed and the unit has misted up — is repaired by replacing the blown sealed unit with a new one. The frame stays in place; only the glass is swapped. It’s one of our most common jobs across Leeds, Bradford and Wakefield, and it’s covered by our workmanship guarantee. Get a free quote on 0113 418 0417.
Like what you see?
Get a free, no-obligation quote today — call 0113 418 0417 or request one online.