Home & Kitchen · Head-to-head
Frost King Premium Aluminum and Reinforced Rubber Door Sweep (A79/36A) vs Duck Brand Rolled Shrink Film Window Insulation Kit, 62 in. x 210 in. (5 windows)
Which should you buy? Our verdict on both, pulled from our full The Best Door Draft Stoppers and Window Insulation: 4 Compared (and One to Skip) comparison.
The Frost King sweep fixes the door gap properly and carries a lifetime guarantee on the rubber. The Duck kit handles the window side of winter heat loss for very little effort.
Frost King Premium Aluminum and Reinforced Rubber Door Sweep (A79/36A)
Buy itA screw-on aluminum and rubber sweep with a lifetime guarantee on its weathersealing, and the one to get for an exterior door.
- The rubber sweep is reinforced and the maker guarantees it will keep its weathersealing ability for life.
- It is a rigid, screw-mounted profile that stays put when the door swings, unlike a stick-on strip.
- The 2 inch by 36 inch size covers a standard door width and comes in silver, white, gold and satin nickel finishes.
- It needs a drill and 1/8 inch bit, so it is more work than a peel-and-stick strip.
- The maker page gives no product-specific install steps, so you rely on the instruction PDF.
- A sweep that is mounted too low can drag on carpet or rub the threshold.
Duck Brand Rolled Shrink Film Window Insulation Kit, 62 in. x 210 in. (5 windows)
Buy itThe cheapest way to stop a drafty window from leaking heat for the winter, with a roll format that needs no measuring.
- One roll of crystal clear shrink film plus window kit tape is listed as covering 5 windows.
- No measuring is required because you apply the film and cut off the excess afterward.
- The maker says it removes cleanly from painted or finished wood, aluminum or vinyl, which suits renters.
- It is a seasonal fix: the film comes off in spring.
- The page warns it is not safe for plaster, drywall, wallboard or unfinished wood surfaces.
- You need a hair dryer and scissors, and a poor tape seal on a dusty frame will let the film sag.
Side by side
| Frost King Premium Aluminum and Reinforced Rubber Door Sweep (A79/36A) | Duck Brand Rolled Shrink Film Window Insulation Kit, 62 in. x 210 in. (5 windows) | |
|---|---|---|
| Our verdict | Buy | Buy |
| Best for | Anyone with a drafty exterior door who is willing to drill once. | Renters and anyone with older single-pane or leaky windows who wants a cheap winter fix. |
| Price tier | $ · mid-range | $ · budget |
The bottom line
Our overall pick is the Frost King Premium Aluminum and Reinforced Rubber Door Sweep (A79/36A) - A screw-on aluminum and rubber sweep with a lifetime guarantee on its weathersealing, and the one to get for an exterior door. Choose the Duck Brand Rolled Shrink Film Window Insulation Kit, 62 in. x 210 in. (5 windows) instead if renters and anyone with older single-pane or leaky windows who wants a cheap winter fix.
Want the full picture, including the other options we compared and the popular one we'd skip? Read the complete The Best Door Draft Stoppers and Window Insulation: 4 Compared (and One to Skip).