UPVC Double Glazed Window Repairs in Horsham
Sussex Double Glazing Repairs provides UPVC double-glazed window repairs for homeowners and landlords throughout Horsham. The service covers common faults including draughts, leaks, failed hinges, broken mechanisms, damaged handles, worn seals and faulty gaskets.
Where possible, individual window components can be repaired or replaced without fitting a completely new window. This can provide a practical, cost-effective way to restore security, insulation and smooth operation. Call Dale now for a free quote on 07881 407 764.
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Draughty or Leaking UPVC Windows
- Usually caused by failed friction stays, broken espag mechanisms or worn gaskets.
- Common signs include draughts, leaks, gaps around the frame, stiff hardware or difficulty closing the window.
- Windows that cannot close or lock correctly may also create a security risk.
- Individual components can often be repaired or replaced without replacing the complete window.
Failed Friction Stays
- Definition: A friction stay is the metal hinge that supports the sash, which is the opening section of the window that holds the glass.
- Symptoms: A loose sash, gaps, draughts, leaks or a window that will not close fully.
- Cause: The hinge may become worn, corroded or distorted, particularly in older windows.
- Possible repair: Replace the friction stay to realign the sash and restore a secure seal. Common hinge sizes may be available for replacement during the initial visit.
Broken Espag Mechanisms
- Definition: An espag is the locking mechanism fitted along the edge of a UPVC window.
- Symptoms: A stiff or spinning handle, a window stuck open or closed, or a window that no longer locks securely.
- Cause: The espag may become worn, jammed or broken, particularly when a stiff handle is repeatedly forced.
- Possible repair: Release or repair the immobilised espag where possible, or fit a compatible replacement to restore operation and security.
Broken Window Handles
- Definition: The window handle operates the espag locking mechanism.
- Symptoms: A loose or spinning handle, a broken push button, or a handle that cracks or shears off during use.
- Cause: General wear or excessive force caused by a stiff or faulty window mechanism.
- Possible repair: Replace the damaged handle and inspect the espag for any underlying faults. Common handle types may be available for replacement during the initial visit.
Perished Seals and Gaskets
- Definition: A gasket is the flexible rubber seal fitted around the window frame or sash.
- Symptoms: Draughts, leaks, increased outside noise, cracked seals or gaps caused by shrinking rubber.
- Cause: Prolonged exposure to weather, sunlight and temperature changes can make gaskets hard, brittle and split. The resulting imbalance may also cause window hardware to bind.
- Possible repair: Replace the damaged gasket and check the window alignment and hardware to restore a tighter, weather-resistant seal.




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When a Repair May Be Suitable
A repair may be suitable when:
- The window is draughty or leaking because of worn seals or gaskets.
- A friction stay or hinge has failed, but the sash and frame remain serviceable.
- The espag locking mechanism is jammed, broken or no longer securing the window.
- The handle is loose, damaged, spinning or has broken away.
- The sash is misaligned but can be adjusted or restored with replacement hardware.
- The glass, frame and main window structure remain in usable condition.
- A compatible replacement component is available.
When Another Solution May Be Required
Another solution may be required when:
- The frame or sash is severely damaged, distorted or beyond practical repair.
- Several major components have failed and repairs would not provide a reliable result.
- The required parts are obsolete or no suitable replacement is available.
- The sealed glass unit is cracked, misted or has failed and requires separate replacement.
- Previous damage has significantly affected the security or overall structure of the window.
- The cost or extent of repair makes a different solution more practical.
Inspection Required
These points provide general guidance only. Sussex Double Glazing Repairs will need to inspect the window, identify the cause of the fault and check the condition of the frame, sash, glass and hardware before confirming whether a component repair or another solution is most appropriate.
FAQs
UPVC windows can develop issues such as misted or foggy glass, warped frames, sticking mechanisms, loose hinges, or damage to rubber seals. Identifying these problems early can help prevent further damage and costly repairs.
Assessing the condition of your UPVC window is crucial in deciding whether repair or replacement is the best course of action. Look for signs like water ingress, visible cracks, difficulty in operation, or excessive drafts to determine the extent of the damage.
The time taken to repair a UPVC window can vary depending on factors such as the complexity of the issue, availability of replacement parts, and the expertise of the repair technician. Simple repairs may be completed within hours, while more extensive repairs could take longer.
Choosing to repair your UPVC windows instead of replacing them contributes positively to the environment by reducing waste and conserving resources. Repairing existing windows minimises the need for new materials and energy-intensive manufacturing processes associated with window replacement.
Areas We Cover
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