Misted Double Glazing in Roundhay — Made-to-Measure Replacement Sealed Units
A misty, clouded window that won’t come clean is the unmistakable sign of a blown sealed unit — the seal has failed and moisture is trapped between the panes. It’s a common issue across Roundhay’s substantial period and inter-war homes, and the answer is a single made-to-measure replacement unit. PTF Glass manufactures that unit in Bramley and supplies it ready for you or your glazier to fit into your existing frame.
Blown Units in Roundhay’s Larger Homes
Roundhay is one of north-east Leeds’s most established residential areas — large detached and semi-detached houses around the park, the grand avenues off Street Lane and Princes Avenue, and generous 1930s properties with wide windows and feature glazing. Homes of this size typically carry more glass than average, and bigger sealed units put more stress on their edge seals, so blown units are a frequent sight here even where the frames remain in excellent condition.
The fault is always the same in principle. A double glazed unit holds a dry, gas-filled cavity between two panes, kept dry by a continuous perimeter seal. As that seal ages and weathers, it lets the gas out and moist air in. The trapped moisture condenses on the cold inner glass and forms the foggy haze you can see but never reach. There is no cleaning it away and no re-sealing it in place — only a new factory-sealed unit will restore the window.
Supplying Roundhay from Our Bramley Workshop
PTF Glass manufactures in Bramley (LS13 4EN), across the city to the west of Roundhay. Measure your failed unit, send us the width, height, thickness and glass type, and we make a matched replacement. Collect it from Bramley at no extra cost, or ask for a delivery price into Roundhay when you order. As the maker, we quote you directly for the finished unit — no national franchise margin layered on top.
Larger feature and bay panes common in Roundhay homes are heavier and need careful handling. Tell us the dimensions when you ask for a price and we’ll advise on safe collection or delivery.
Only the Glass Is Replaced — Not the Whole Window
For Roundhay’s better homes this is reassuring: a blown unit very rarely means ripping out a window. The frame — whether uPVC, timber or aluminium — is usually sound and worth keeping. It’s only the sealed glass unit that has failed, and that single part is what you replace. A new unit, made to your measurements and matched to the original glass and spacer, drops back into the existing frame once the beading is removed.
Fit it yourself if you’re confident, or have any Roundhay glazier fit a unit ordered through us. See our cost of replacing a double glazed unit guide for typical prices, including the larger panes found in the area.
Telling a Blown Unit Apart
- A foggy or milky film sealed between the panes that resists all cleaning
- Droplets or watermarks visible inside a large feature or bay pane
- A pane that feels cold to the touch, indicating lost gas fill
- A persistently dull, hazy window however well you clean it
If you’re seeing condensation on the room-facing surface instead, that usually points to humidity and ventilation rather than a blown unit. Our condensation in double glazed windows guide helps you distinguish them, and our double glazing wet inside guide explains the wetter, dripping cases.
Why Roundhay Chooses PTF Glass
PTF Glass has made and supplied glass across Leeds since 2008 — over 15 years — and holds a 4.8 out of 5 rating from 47 Google reviews. Every replacement sealed unit carries our own 5-year guarantee against sealed-unit failure, plus the Eurocell 10-year manufacturer guarantee on windows. Fixed prices, made-to-measure manufacturing and honest, no-pressure advice throughout. The wider service is set out on our misted unit replacement page.
Get a Price for Your Roundhay Replacement Unit
Send us the sizes of your blown unit and we’ll give you a clear, no-obligation price for a made-to-measure replacement — ready to collect from Bramley or for delivery into Roundhay.
Frequently Asked Questions
Do you supply large feature and bay units for Roundhay homes?
Yes. We make made-to-measure units of all sizes, including the larger feature and bay panes common in Roundhay’s bigger properties. Larger units are heavier, so we’ll advise on safe collection from Bramley or arrange delivery — just give us the dimensions when you ask for a price.
Several of my windows have misted at once — can you do them together?
Yes, and it’s often more economical. If multiple units have blown, ordering them together usually works out better value than one at a time. Send us the sizes for each and we’ll quote the set.
Does a new unit improve energy efficiency?
Yes. A blown unit has lost its insulating gas fill, so a new factory-sealed unit restores the window’s thermal performance. Choosing Low-E glass for the replacement will reduce heat loss further.
How long will my Roundhay unit take to make?
Standard clear units are typically ready within 7–14 working days for collection from Bramley or delivery into Roundhay. Larger, toughened or specialist glass can take a little longer.
Do you fit the units?
No — PTF Glass supplies the made-to-measure unit only. You or your own glazier fit it into the existing frame. Any local Roundhay glazier can fit a unit you’ve ordered from us if you’d prefer not to.