Double Glazing Repairs
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Problems with double glazing don’t always mean you need completely new windows or doors. Misted glass, cracked panes, deteriorated seals and faults with the surrounding frames or hardware can often be repaired individually while retaining the rest of the existing installation.
Window Doctor provides professional double glazing repairs through our nationwide network of local branches, working with uPVC, aluminium and timber windows and doors in residential and commercial properties.
Our experienced glazing engineers can identify whether the problem lies with the glass unit itself, the seals, frame, alignment or associated hardware before recommending the appropriate repair. Wherever practical, we’ll repair or replace only the affected components rather than unnecessarily replacing complete windows or doors.
From £55
Common Double Glazing Problems We Can Repair:
Double glazed windows and doors contain several components that work together, so problems aren’t always limited to the glass itself.
Common double glazing problems include:
- Misted or cloudy glass – condensation or misting between the panes can indicate that the sealed glass unit has failed.
- Condensation between the panes – moisture trapped inside a double glazed unit is different from ordinary condensation forming on the room-side surface.
- Cracked or shattered glass – impact, accidental damage or other stresses can damage one or more panes.
- Failed double glazed units – deterioration of the sealed unit can affect its appearance and performance.
- Damaged rubber seals and gaskets – ageing or damaged seals around windows and doors may need replacing.
- Dropped or misaligned windows and doors – movement can make them difficult to open, close or lock correctly.
- Faulty handles – worn, broken or misaligned handles can affect otherwise serviceable double glazed windows and doors.
- Broken or faulty locks – locking components can wear or fail independently of the glass.
- Draughts around windows and doors – failed seals, poor alignment or gaps around the frame can allow unwanted air through.
- Leaking windows – water ingress can result from failed sealing, drainage issues or other faults around the installation.
- Impact damage – stones thrown by lawnmowers and other accidental impacts can crack or shatter glazing.
- General wear and tear – seals, hardware and mechanical components can gradually deteriorate through regular use.
Correctly diagnosing the problem is important. For example, condensation between the panes generally indicates a problem with the sealed glass unit, whereas moisture forming on the inside or outside surface of the glass can have entirely different causes.
Our Double Glazing Repairs & Replacement Services:
Window Doctor provides double glazing repairs for uPVC, aluminium and timber windows and doors, covering both the glazing itself and many of the surrounding components.
Our services include:
Double glazed glass unit replacements Misted and failed double glazing replacements Cracked and shattered glass replacement Rubber seal and gasket replacement Window and door realignment Resealing and draught-proofing Lubrication and servicing of suitable mechanical components Window and door handle repairs Lock and locking mechanism repairs Trickle vent repairs Leaking window repairs Window and door boarding following serious damage or attempted burglary Residential double glazing repairs Commercial double glazing repairs
Where a sealed glass unit has failed, it isn’t normally necessary to replace the complete window frame simply because the glazing has become misted. A suitable replacement double glazed unit can often be manufactured to fit the existing frame. Likewise, if the glass remains serviceable but the window or door has become difficult to operate, the fault may lie with hinges, handles, locks, seals or alignment rather than the double glazing itself.
For condensation or clouding specifically between the panes, our misty glass replacement service provides more information about failed sealed units. We also provide specialist glass replacements for cracked, smashed and otherwise damaged glazing, alongside our wider window repair and door repair services.
If your double glazing has become misted, cracked, draughty or difficult to operate, contact Window Doctor to arrange an assessment. With experienced local engineers operating through our nationwide branch network, we can identify the cause of the problem and provide a free, no-obligation quote for the appropriate double glazing repair.
Some of our Recent Double Glazing Repairs:
Frequently Asked Questions - FAQs
Can double glazing be repaired without replacing the whole window?
Yes, in many cases. Individual sealed glass units, handles, hinges, locks, seals and other components can often be repaired or replaced while retaining the existing frame. The appropriate solution will depend on which part of the window or door has failed.
Why has my double glazing become misty between the panes?
Misting or condensation between the panes usually indicates that the seal around the double glazed unit has failed and moisture has entered the space between the glass. The affected sealed unit can often be replaced independently without replacing the complete window.
Can you replace cracked double glazing?
Yes. Suitable cracked or shattered double glazed units can be measured and replaced while retaining the existing window or door frame, provided the surrounding installation remains serviceable.
Do you repair double glazing in doors as well as windows?
Yes. Window Doctor repairs double glazing and associated components in both windows and doors, including suitable patio, French, bifold and entrance doors.
Do you repair commercial double glazing?
Yes. Through our nationwide network of local branches, Window Doctor provides suitable double glazing repairs for both residential and commercial properties, including shops, offices, landlords and other business premises.
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