Portsmouth Misted Glass Repair specialists — sealed unit replacement
Professional misted glass repair service across Portsmouth and the wider PO area. Fully guaranteed, locally based, and ready to help today.
Misted double glazing is one of the most common — and most fixable — problems we see across Portsmouth. The city's exposure to salt-laden air from the Solent and the harbour means sealed units in coastal postcodes (PO4, PO5, parts of PO1) typically fail earlier than inland properties — often at 12-15 years rather than the typical 20. The pattern across PO postcodes is clear: 1980s-90s estates in Cosham, Paulsgrove and Drayton are now seeing first-generation UPVC sealed units failing in waves.
The good news is you almost never need to replace the whole window. The frame is usually fine. We replace just the sealed glass unit, keeping your existing frame, hardware and beading. Across Portsmouth a misted unit replacement costs £60-£120 depending on size and glass spec, with toughened and triple-glazed units at the upper end.
We measure on the first visit (typically within 24-48 hours of your quote), order to your exact specification, and return to fit once the unit is ready — usually within 7 working days for standard units. Every replacement carries our 12-month workmanship guarantee plus the manufacturer's 5-year guarantee against repeat seal failure.
Why Misted Glass Repair Matters in Portsmouth
Misted glass repair in Portsmouth is a specialist service that restores clarity and thermal performance to your double glazed windows. If you've noticed condensation forming between the panes of your windows in Southsea, Fratton, or anywhere across Portsmouth, it's a clear sign that the sealed unit has failed. Portsmouth's island geography and constant exposure to sea air can accelerate seal degradation, meaning misted double glazing in Portsmouth is a particularly common issue that our team deals with on a daily basis.
Energy Savings
Replacing failed sealed units restores thermal efficiency, reducing heating costs for your home.
Clear Views Restored
Eliminate condensation between panes and enjoy crystal-clear views from every window again.
Full Unit Replacement
We replace the complete sealed unit, not just the glass, ensuring a long-lasting repair with full guarantee.
Our Misted Glass Repair Process
Get in Touch
Call us or use our online condensation glass calculator for an instant quote on your misted units.
Window Survey
We measure and assess each affected unit, confirming the exact glass specification required.
Unit Replacement
Your new sealed units are manufactured and fitted into your existing frames by our expert glaziers.
Quality Assurance
We check every seal, clean every pane, and ensure your windows look and perform like new.
Areas We Cover in Portsmouth
We provide misted glass repair across every Portsmouth postcode and the surrounding areas, including:
- Old Portsmouth & Centre — Old Portsmouth, Spinnaker, Gunwharf Quays, Buckland, Landport
- Southsea — Southsea, Eastney, Milton, East Southsea
- North Portsmouth — Cosham, Drayton, Farlington, Hilsea, Paulsgrove
- East Portsmouth — Copnor, Baffins, North End
- Surrounding — Portchester, Wymering, Anchorage Park
Common Misted Glass Issues We See in Portsmouth Properties
- •Coastal-exposed homes in Southsea, Eastney and along Portsmouth's seafront — early seal failure from salt-air ingress, often within 10-12 years rather than the typical 18-20
- •1980s-90s estates across Cosham, Paulsgrove and Drayton — first-generation UPVC sealed units now reaching end-of-life, often with multiple windows misting in the same year
- •South-facing Victorian conversions in Southsea and Old Portsmouth — high thermal cycling causes earlier seal stress on units that face the sun all day
- •Modern Gunwharf and Spinnaker apartments — sealed units that have failed under warranty but the original installer is no longer trading
- •Heritage casements in Old Portsmouth and Southsea conservation areas — older slim-profile units (4mm-6mm-4mm) where replacement requires careful matching to maintain the listed-building appearance
Frequently Asked Questions — Misted Glass Repair Portsmouth
How much does misted glass repair cost in Portsmouth?
Single sealed unit replacement typically £60-£120 depending on size, glass thickness and access. Toughened, laminated, leaded or triple-glazed units cost more. Larger picture windows and bay windows are at the upper end. Get an instant quote online or call 023 8001 2328.
Do I have to replace the whole window if it's misted?
Almost never. If your frame is sound, we replace just the sealed glass unit and keep your existing frame, hardware, beading and locks. This is the cheaper, faster, and less disruptive option — typically half the cost of a full window replacement.
How long does it take to fix misted glass in Portsmouth?
We measure on the first visit (usually within 24-48 hours of your quote), order the unit to your exact specification, and return to fit once it's ready — typically within 7 working days for standard units. Toughened, leaded and bespoke units take 10-14 days.
Can salt air really cause misting in Portsmouth homes?
Yes — properties within half a mile or so of the harbour or seafront tend to see sealed units fail earlier than the UK average. The salt accelerates the breakdown of the perimeter sealant, which lets moisture in. We see this consistently across Southsea, Eastney and the western seafront.
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