A door draft stopper is the cheapest way to fix the cold spot at floor level that you feel next to an exterior door, or the chilly hallway air that slides under the bedroom door. The hard part is not the price: it is choosing the right type. A stick-on sweep that is perfect for a smooth front door is useless in a rental where you cannot stick anything on, and a weighted “snake” that works under a guest-room door is a nuisance on a door you open fifty times a day.
For most exterior doors with a gap of up to about an inch, a stick-on silicone sweep such as the Holikme 41-inch Door Draft Stopper is the best value: it takes two minutes and moves with the door. Renting? Use a slide-on twin-tube stopper. Gap over an inch? Go wider, or use a weighted blocker. A front door that gets heavy use deserves a screw-on brush sweep.
Affiliate note: As an Amazon Associate, The Low Bill Home earns from qualifying purchases. Buying through our links costs you nothing extra. We have not tested every product hands-on: picks are based on the makers' published specs, official energy-saving guidance and long-term buyer feedback, and we say where a product falls short.
Two-minute stick-on install, long enough for a standard door, and one of the most popular draft fixes on Amazon.
Check price on AmazonWhy we picked it ↓Two silicone strips in one order: the front door and the back door done for the price of one listing.
Check price on AmazonWhy we picked it ↓Slides onto the door with twin foam tubes. No adhesive, no screws, nothing left behind when you move.
Check price on AmazonWhy we picked it ↓Shopping on Black Friday? Add it to your Amazon cart now so it is ready when the deals start (Black Friday is November 27, Cyber Monday November 30, 2026).
Step 1: measure your gap in two minutes
Every listing tells you the largest gap it can fill, so start with your own number. You need a tape measure and, for the first test, daylight.
- Daylight test. Close the door on a bright day and turn off the lights. Light under the door means air is getting through.
- Paper test. Slide a sheet of paper under the closed door. If it slides through without catching, the gap is big enough to lose heat.
- Measure three spots. Measure the gap at the hinge side, the middle and the latch side. Floors are rarely level, so use the largest number.
- Check the threshold and floor. Note whether there is a raised threshold, carpet or a thick doormat inside the door. These decide whether a sweep can swing freely.
- For slide-on stoppers, measure door thickness too. Twin-tube models only fit doors within a certain thickness range.
Exterior door with a big gap? Look at the threshold first. Many pre-hung exterior doors have an adjustable threshold with screws under small caps; raising it a little can close the gap without any stopper at all.
Which stopper fits your door
| Your door | Best type | Our pick |
|---|---|---|
| Exterior or interior door, gap up to about 1″, smooth door face | Stick-on silicone sweep | Holikme 41″ or Grotheory 2-pack |
| Gap over 1″, or a floor that slopes under the door | Wide stick-on sweep | Suptikes Huge Gap (up to 1.8″) |
| Rental, or a door you cannot stick anything to; low or no threshold | Slide-on twin foam tubes | Holikme Under Door |
| Very large gap (up to about 3″) on a door you rarely open | Weighted blocker | GORILLA GRIP Weighted |
| Front or back door used many times a day; uneven floor or threshold | Screw-on brush sweep | Randall Aluminum Brush |
| Drafts along the sides and top of the door | Weatherstripping or kerf seal | Litaibai kerf seal or VITAM AMO strip |
| Garage door | Bottom seal or floor threshold | See garage doors |
Comparison table
Sizes and gap ranges are as listed by the makers on Amazon in October 2026.
| Pick | Type | Size | Gap it fills | Install |
|---|---|---|---|---|
| Holikme 41″ | Stick-on silicone | 41″ x 2″ | Up to 1″ | Adhesive, about 2 min |
| Grotheory 2-pack | Stick-on silicone | Two 39″ x 2″ strips | Not stated | Adhesive |
| Suptikes Huge Gap | Wide stick-on silicone | Two 39″ x 3.4″ strips | Up to 1.8″ | Adhesive, extra-wide backing |
| Holikme Under Door | Slide-on twin foam tubes | 36″, adjustable | Small gaps; not for thresholds over 0.3″ | Slides on, no tools |
| GORILLA GRIP Weighted | Weighted blocker | 32″ (other lengths sold) | Up to 3″ | Lay it down |
| Randall Brush Sweep | Screw-on aluminum + brush | 36″ | Up to 1.5″ | Screws, drill |
| Litaibai Kerf Seal | Press-in frame seal | 40 ft | 1/4–1/2″ closed-door gaps | Press into 1/8″ kerf slot |
How we chose
- We started from the job, not the product. Each pick covers a different door and gap, so you can match one to your situation.
- Maker specifications. We compared the gap range, length, material and installation method each maker lists.
- Track record. We favored products that have been sold for years with a large volume of buyer feedback, and we flag picks that are newer or less reviewed.
- The complaints. We read the negative feedback for patterns: adhesive letting go in the cold, sweeps so stiff the door will not latch, blockers that slide away. Those patterns are in the “Watch out” and “Skip it if” notes.
We have not tested these products in our own home. Picks are based on the makers’ published specifications, safety certifications and patterns in long-term buyer feedback, especially the complaints.
The picks
Holikme Door Draft Stopper (41 inch)
A 2-inch-wide silicone strip that sticks to the bottom of the door on the inside and flexes against the floor as the door moves. It is one of the most popular draft fixes on Amazon, and for a good reason: on a standard door with a gap of up to an inch, nothing is quicker or cheaper. At 41 inches it covers a 36-inch exterior door with room to trim.
The maker’s own cold-weather tip is worth following: if the door is cold, warm the adhesive with a hair dryer before you press it on. If you mainly want to block light as well as air, choose one of the darker colors.
- Size: 41″ long x 2″ wide
- Fills gaps up to 1″
- Material: silicone, for interior and exterior doors
- Self-adhesive; several colors
Good: two-minute install, no tools, flexes over small bumps, also cuts noise, dust and light.
Watch out: the adhesive needs a clean, dry, room-temperature door; on rough or textured doors it can peel; the flap can drag on a thick mat.
Skip it if: your gap is over an inch, or the door swings over carpet or a thick rug.
Grotheory Door Draft Stopper, 2-pack
The same idea as the Holikme, sold as two 39-inch silicone strips with a triple-layer design that the maker says also helps with noise and dust. Two strips make it the easy choice if you have a front and a back door, or a door and a drafty interior door to the garage.
One gap in the listing: Grotheory gives the size but not a maximum gap. If your gap is more than about an inch, go to the wide-gap pick below instead.
- Two strips, each 39″ x 2″
- Material: silicone
- Self-adhesive
- For doors, windows, garage and basement doors
Good: two doors done in one order, fast install, flexible silicone will not scratch floors.
Watch out: the same adhesive caveats as any stick-on sweep; 39 inches is enough for a 36-inch door but check wider doors.
Skip it if: your gap is over about an inch, or you only need one door done.
Suptikes Huge Gap Door Draft Stopper
Older houses settle, and floors slope. When the gap under the door is well over an inch, or wider at one end than the other, a standard 2-inch sweep cannot reach the floor. This one is 3.4 inches wide and the maker rates it for gaps from zero up to 1.8 inches. The adhesive backing is also wider than usual, about 1.6 inches, which helps a strip this size stay put. You get two pieces.
Gap closer to 1.5 inches? The Vellure door draft stopper is a slimmer alternative rated for gaps up to 1.5 inches.
- Size: 3.4″ wide x 39″ long, 2 pieces
- Fills gaps up to 1.8″
- Wide 1.6″ adhesive backing
- Three-layer thickened silicone
Good: covers big and uneven gaps that normal sweeps miss, wide backing holds better.
Watch out: more visible than a slim sweep; a wide flap can catch on a rug or doormat, so check the door still swings freely.
Skip it if: your gap is under an inch: a slimmer sweep looks neater and drags less.
Holikme Under Door Draft Stopper (twin foam tubes)
Two foam tubes sit on either side of the door, joined by a fabric sleeve that runs under it. The whole thing slides onto the door and moves with it, so nothing is stuck, screwed or left behind. Hook-and-loop fastening keeps the foam inside the sleeve as the door opens and closes. It is the one to choose for a rental, a painted door you do not want to mark, or a bedroom door where you also want less light and noise.
Two numbers decide whether it fits: the maker says it suits doors from about 1 to 1.7 inches thick, and it is not recommended where the threshold is taller than about 0.3 inches. For a bedroom door with carpet, the Everlasting Comfort under door draft stopper is a dense single-piece alternative made for 30 to 36-inch doors.
- Length: 36″, adjustable for most doors
- Fits doors about 1–1.7″ thick
- Not recommended for thresholds over 0.3″
- Slide-on, no tools or adhesive
Good: zero damage to the door, moves with it, blocks light and noise as well as drafts.
Watch out: adds a little drag when you open the door; does not suit raised thresholds or unusually thick doors.
Skip it if: your exterior door has a tall threshold or you want the neatest possible look.
GORILLA GRIP Weighted Door Draft Stopper
The modern version of the rolled-up towel. It is filled with cotton and natural sand, weighs about 2.2 pounds so it stays tight against the door, and has PVC grip dots underneath to stop it sliding on hard floors. The maker rates it for gaps of up to 3 inches, more than any sweep. Because it lies on the floor instead of attaching to the door, you can move it from room to room.
The catch: it does not move with the door. Every time you open the door you push it aside and then put it back, which is fine for a spare room or a door to an unheated porch, but annoying on the front door.
- Length: 32″ (other lengths available)
- Fills gaps up to 3″
- Weight: about 2.2 lb, cotton and sand fill
- Grip dots underneath
Good: no installation, handles huge gaps, works on carpet and hard floors, portable.
Watch out: you have to reposition it after every opening; pick the length that matches your door.
Skip it if: it is a door you use all day.
Randall Aluminum Brush Door Sweep
A stick-on silicone strip is not made for a front door that kids, dogs and deliveries push open fifty times a day. A screw-on sweep is. This one is a 1-inch aluminum rail with 1.5-inch polypropylene bristles, made in the USA, and seals gaps up to 1.5 inches. Bristles flex over uneven floors and thresholds better than a solid rubber blade, at the cost of being a little less airtight.
No drill, or a door you cannot put screws in? The M-D Cinch U-shape slide-on door seal is a vinyl sleeve that slides onto the bottom of the door and holds by compression, with no hardware.
- Length: 36″
- Seals gaps up to 1.5″
- Aluminum holder, 1.5″ polypropylene brush
- Screw mounted; made in USA
Good: lasts for years on busy doors, copes with uneven floors and thresholds, works on storm and screen doors too.
Watch out: needs a drill and screws; a brush is slightly less airtight than a solid seal.
Skip it if: you rent or cannot drill into the door.
Litaibai Kerf Weather Stripping Door Seal
If the draft comes from the sides or top of an exterior door, a sweep will not help: the seal in the frame is worn. Most modern exterior door frames have a thin slot, called a kerf, that holds a replaceable foam seal. Pull out the old flattened one and press this one in. It fits 1/8-inch kerf slots and closed-door gaps of 1/4 to 1/2 inch, and a 40-foot roll is enough for a couple of doors.
No kerf slot in your frame? Use a self-adhesive rubber strip on the door stop instead, such as the VITAM AMO EPDM weather stripping, which fits gaps from about 5/16 to 15/32 inch. Measure first: a seal that is too thick stops the door latching.
- Length: 40 ft
- Fits 1/8″ kerf slots
- For closed-door gaps of 1/4–1/2″
- Press-in, not self-adhesive; polyurethane foam
Good: replaces a worn factory seal properly, no adhesive to fail in the cold.
Watch out: only for frames with a kerf slot; measure the gap before you order.
Skip it if: your frame has no slot (use an adhesive strip instead).
Garage doors
A drafty attached garage makes the rooms next to it colder. Two fixes cover most garage doors:
- Replace the bottom seal. The rubber strip along the bottom of the door wears out and cracks. The Holikme garage door bottom seal is 17 feet of EPDM rubber that the maker says stays flexible from −40°F to 240°F. It fits doors with a 5/16-inch double T-track retainer: check yours before ordering.
- Add a threshold on the floor. If the garage floor is uneven, a rubber threshold glued to the floor gives the bottom seal something to press against. The Jin&Bao universal garage door threshold seal is a 20-foot strip with adhesive included, rated from −40°F to 284°F.
Install it so it lasts
- Clean the door. Wipe the bottom of the door with rubbing alcohol and let it dry. Dust and grease are the main reason adhesive fails.
- Warm it up. Install indoors at room temperature. On a cold exterior door, warm the adhesive and the door with a hair dryer first.
- Trim before you peel. Hold the strip against the door, mark the length and cut it. Most silicone sweeps cut cleanly with sharp scissors.
- Set the height with the door closed. The sweep should just touch the floor or threshold, not fold under it.
- Press hard and wait. Press along the full length, then avoid heavy use for a few hours so the adhesive can bond.
- Test. Open and close the door a few times: it should latch easily and clear any mat inside.
Mistakes to avoid
- Fixing only the bottom. If you feel air at the sides or top, the frame seal is the problem. See the kerf seal pick.
- Buying for the average gap. Measure the widest point. A sweep that reaches the floor in the middle but not at the hinge side still leaks.
- Too thick to latch. A seal that is too thick holds the door open a crack and makes things worse. Measure before ordering.
- Ignoring the threshold. On many exterior doors, raising an adjustable threshold closes the gap better than any add-on.
- Forgetting the windows. Doors are only part of it. Our guide to stopping window and door drafts covers film, caulk cord and outlet gaskets.
How much will it save?
Honestly, no one can give you a dollar figure for one door sweep: it depends on the size of the gap, the wind, how cold it gets and how you heat. What is well established is that air sealing pays: ENERGY STAR says sealing air leaks and adding insulation together can save up to 10% on annual energy bills. For a sense of scale, the U.S. Energy Information Administration expects the average household that heats with electricity to spend about $1,196 on heating this winter, and a household on heating oil about $2,115 (EIA Winter Fuels Outlook, October 2026). The comfort gain is immediate: no more cold ankles next to the door, which often means you leave the thermostat a degree or two lower.
FAQ
Do door draft stoppers really work?
Yes, for air that leaks under a door. A stopper that closes the gap stops the cold draft you feel at floor level and keeps warm air in the room. How much money it saves depends on the size of the gap, the wind and how cold it is outside, but it is one of the cheapest air-sealing fixes in a home.
What is the best draft stopper for a big gap under a door?
For gaps over an inch, choose a wide stick-on sweep rated for your gap, such as one made for gaps up to about 1.8 inches, or a weighted blocker that lies on the floor and covers gaps up to about 3 inches. Measure the gap at the hinge side, the middle and the latch side first, because floors are rarely level.
How can I stop a draft under my door if I rent?
Use something you do not have to stick or screw on: a slide-on twin-tube stopper that moves with the door, or a weighted blocker that lies against the bottom of the door. Neither leaves marks, and you can take them with you when you move.
Will an adhesive door sweep damage my door?
It can pull off loose paint or leave adhesive behind when you remove it. Clean and dry the door first, install it at room temperature, and when you take it off, warm the strip with a hair dryer and peel it back slowly. Leftover adhesive usually comes off with a little rubbing alcohol or an adhesive remover.
Should a door sweep touch the floor?
It should lightly touch the floor or threshold when the door is closed, enough to seal without stopping the door from closing and latching. If it drags hard or the door will not close, trim it or move it up slightly.
What is the difference between a door sweep and weatherstripping?
A door sweep or draft stopper closes the gap under the door. Weatherstripping seals the sides and top, where the door presses against the frame. Most drafty exterior doors need both.
Keep going
- How to stop window and door drafts: 7 cheap fixes
- 20 ways to lower your heating bill this winter
- Heated blanket vs space heater: which is cheaper to run
- Energy cost calculator
Sources
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