The flexible strip under a garage door is only one part of the bottom sealing assembly. Its profile must fit the retainer and the door. A seal chosen only by its width may not attach or compress correctly.
Describe the visible failure
Tell us whether the strip is torn, brittle, missing at one end or separated from the retainer. Note whether the gap follows the full opening or appears only in one spot. Those details help distinguish a material replacement from a fit or floor issue.
Keep the retainer in the assessment
A damaged channel can prevent a new strip from seating properly. Identify the door model if its label is safely accessible, and let the technician check the attached hardware. Do not loosen bottom brackets or reach beneath an unstable door to take measurements.
Agree on the result the work can address
Weather sealing can reduce gaps when the door and opening are suitable. It should not be sold as a cure for every drainage problem. Explain when water or debris enters so the proposal addresses the actual condition.
Frequently Asked Questions
Will any universal seal fit my door?
No. Confirm the retainer profile, door compatibility and required dimensions before ordering.
Can a new seal fix a crooked door?
The door’s alignment and lifting condition need assessment first. A flexible strip does not repair an unstable assembly.