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Window and door draught-proofing and sealing — Window and door frame specialist
Describe where the draught is felt and whether it changes with wind, opening position or weather. Provide photographs of the frame, seals and surrounding junction so the specialist can distinguish seal failure from alignment problems or gaps outside the window assembly.
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
Typical tasks
- Locate likely leakage paths
- Check frame and opening alignment
- Identify compatible sealing options
- Treat the agreed joints or seals
- Verify operation and retained ventilation provisions
What to include in your brief
- Location of the draught
- Frame material and opening style
- Weather conditions when noticed
- Seal photographs
- Existing vents or drainage details
Choosing the right professional
Ask how the provider will distinguish unwanted leakage from intentional ventilation and frame drainage. The proposal should identify the specific seal or junction treatment and avoid promising that draught-proofing alone resolves dampness or all heat loss.
Important considerations
- Inappropriate seal placement can obstruct operation
- Closing intentional ventilation may create other building problems
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