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Window and door draught-proofing and sealing — Window and door frame specialist — Professionals
Draught-proofing work needs assessment of the opening mechanism and its ventilation interfaces. Providers should diagnose the path before applying a generic seal and record any alignment or building-junction issue needing a different repair.
Service scope
Investigation and treatment of unintended air leakage around window or door opening parts and perimeter joints. Suitable seals must preserve operation and necessary ventilation or drainage; filling every visible gap is not an appropriate universal solution.
What is normally included
- Leakage-path assessment
- Compatible weather-seal work
- Perimeter-joint and operation review
What is not included
- Blocking required ventilation or drainage
- Guaranteed elimination of every cause of cold rooms
Qualification checks
- Identify leakage location
- Review seal compatibility
- Check opening clearances
- Preserve designed ventilation and drainage
- Agree functional verification
Quote guidance
Separate seal replacement, adjustment and perimeter-joint work. Price by the assessed scope and access rather than treating every metre of visible gap as equivalent, and identify any frame repairs needed first.
Lead risks
- The source of a draught may be outside the frame
- A distorted sash may not be solved by thicker seals
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