Mosque Stained Glass Restoration

Decorative mosque glazing is a system of glass, lead or metal supports, perimeter frames, adjacent masonry or plaster, exterior weather protection and ventilation. Restoring only the broken glass can leave the actual cause of failure unresolved.

1. Panel-by-panel survey

• Assign panel numbers before dismantling.
• Photograph front, back and key details.
• Record cracks, missing pieces and later replacements.
• Map deformation, bulging and support failure.
• Inspect frames, perimeter joints and surrounding fabric.

2. Decide in-situ repair or workshop removal

3. Glass replacement strategy

New glass should be selected for compatible colour, texture, transparency and visual character. Surviving original glass should be retained where feasible. Replacement should not erase evidence of age or unnecessarily homogenise the panel.

4. Lead, metal and frame condition

Lead cames, steel frames, brass elements, timber frames and perimeter fixings can each fail differently. Check corrosion, fatigue, loose joints, timber decay and movement before reinstalling glass.

5. Water and condensation

Investigate exterior seals, sills, drainage and cavity ventilation. Protective glazing may reduce weather exposure but can also trap heat and moisture if poorly detailed.

6. Dismantling and storage

• Use a panel numbering plan.
• Record orientation.
• Use padded rigid transport support.
• Protect labels from moisture and loss.
• Store panels in stable conditions away from impact.

7. Reinstallation checklist

• Frame repaired and dry
• Perimeter details complete
• Panel orientation verified
• Support points secure but not over-constrained
• Water path tested where appropriate
• Final photographs completed

8. RFQ information

Provide panel dimensions, photos, frame material, access height, known water problems, whether panels can be removed, and any heritage constraints.

9. Frequently asked questions