Rainwater under a garage door is usually caused by more than one issue. The bottom seal, side seals, floor slope, threshold, and overall door fit all play a role, especially in Surrey’s long wet stretches.
Rainwater under a garage door is usually caused by more than one issue. The bottom seal, side seals, floor slope, threshold, and overall door fit all play a role, especially in Surrey’s long wet stretches.

Flattened bottom rubber, worn side seals, and gaps at the corners are common first checks.

Even a new seal will struggle if the slab directs water inward or if the threshold line is uneven.
Frequent rain, driveway runoff, and the use of garages for storage make water intrusion a practical problem rather than a minor nuisance.
Surrey homeowners ask this question because garage doors are used hard and exposed to wet weather, neighbourhood-specific conditions, and a wide range of door ages. A practical answer should connect the symptom to the likely system involved, then point the reader toward the correct next page rather than pushing a generic sales message.
Related reading includes the Surrey garage door blog hub, garage door support, and pricing guidance when the question is really about scope and next steps.
No. Drainage and door alignment may also need attention.
Yes, especially when the floor profile encourages water to move toward the garage.
Not as a first step. Seal and safety should be reviewed together.
Go to the garage door weatherstripping and seal repair page.
If that issue matches what you are seeing, review garage door weatherstripping and seal repair so the symptom is matched to the right service path.