Door sweep or bottom seal?
A face-mounted sweep sits along the lower edge of the door and brings a flexible insert or brush towards the sealing surface. A door shoe or fitted bottom can wrap around, slide into or attach beneath the door. The best choice depends on the existing construction.
Photograph the underside if it is easily visible without removing the door. Include the face of the sweep, any mounting screws and the full threshold. You do not need to dismantle anything to start an enquiry.
The threshold is part of the solution
The seal needs a suitable surface to meet. A damaged threshold, uneven floor or door that has dropped may leave inconsistent contact. Replacing the flexible strip alone will not necessarily address that condition.
Our assessment considers the gap across the full width. Where threshold or alignment work is relevant, it is included in the discussion before the repair is agreed. Read more in our threshold and door-fit service page.
What about automatic drop-down seals?
Some doors use a mechanical bottom seal that lowers as the door closes. These assemblies have model-specific installation and adjustment requirements. Their mounting arrangement and dimensions need to be identified before a replacement is confirmed.
Send a close-up of the existing assembly and any visible label. We can review the opening and advise on the next step; we do not assume every door can be converted to this type of seal.
A better seal should still move properly
Too much pressure at the bottom can make the door drag, wear the insert or interfere with closing. The objective is suitable contact when closed, with the door operating normally through its swing.
If you recently changed flooring or added a mat, mention it. If the gap is larger at one side, take a photo that shows the whole bottom edge so the difference is visible.
Describe drafts and water entry separately
A draft and a rain leak may appear near the same part of a door but have different causes. Tell us when water appears, where it first shows and whether the surrounding frame or sill is wet.
Bottom-seal replacement is not a guaranteed fix for every leak. Water can involve the threshold, drainage or surrounding construction. We explain when the symptoms call for further assessment rather than promise that a new sweep will solve everything.
Not sure which part you have?
That is fine. Start with a photograph and tell us what the door is doing. We can help identify the next step.
Read the guide