Frost King Premium Aluminum & Vinyl Door Sweep (1-5/8 in x 36 in) Review (2026)
By The DIYPicks Team · Updated July 2026
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- Drafty doors
- Air sealing
- Blocking under door drafts
The correct fix for cold air pouring under an exterior door. More work to install than tape, but it seals the threshold gap durably and is adjustable for uneven floors.
Pros
- Seals the under-door gap that V-seal and foam tape cannot reach, a top source of drafts
- Slotted screw holes let you adjust height for an even seal against an uneven threshold
- Rigid aluminum carrier is far more durable than stick-on foam or brush sweeps
Cons
- Requires drilling and screws, so it is a slower install than peel-and-stick options
- Must be cut to the exact door width with a hacksaw, adding a step for non-standard doors
- A too-low setting drags on the floor and wears the vinyl blade or scratches flooring
Specifications
| Type | Screw-on aluminum carrier with vinyl seal blade |
|---|---|
| Expansion | N/A (adjustable slotted mount) |
| Cure | None, mechanical fastening |
| Paintable | Aluminum can be painted; vinyl cannot |
| Use | Bottom gap between a door and its threshold |