What Is a Door Sweep?
A door sweep is a simple but highly important part of your home. It is a long strip of metal, rubber, or plastic attached to the very bottom edge of an exterior door. When you close the door, this flexible strip presses tightly against the threshold. The threshold is the raised piece of wood or metal on the floor in the doorway. Together, the door sweep and the threshold seal the gap at the bottom of the door.
The word sweep comes from the Old English word swapan. This ancient word means to move quickly or drive away. Builders adopted the term because the flexible strip physically sweeps across the floor as the door opens and closes. It acts like a tiny broom that keeps the outside world from getting inside.
Why It Matters for Your Home
You might not notice a door sweep until it stops working. When the rubber seal breaks down, you will immediately feel cold air blowing in during the winter. You will also lose valuable cold air during the summer. This forces your heating and cooling equipment to work much harder to keep you comfortable. Keeping a tight seal at all your doors is a cheap way to help your HVAC & Climate Control system run better and lower your monthly energy bills.
A good door sweep also keeps out unwanted guests. Spiders, ants, roaches, and mice love to squeeze through small gaps under doors. Stopping these pests at the door is a key step in basic Pest Control. Finally, rainwater can easily blow under a bare door during heavy storms. This standing water can rot your wood floors, damage your baseboards, or soak into your carpets.
Types of Door Sweeps
You will find a few common styles at the hardware store. The right one depends entirely on your door type and your floor surface.
- Wraparound sweeps: These slide under the bottom of a metal or wood door. They wrap around both the inside and outside edges of the door bottom. You usually screw them into the side of the door. They offer the best protection against heavy rain.
- Strip sweeps: These are flat pieces of metal with a rubber lip on the bottom. You screw them directly into the inside face of the door. They are very easy to install without taking the door off the hinges.
- Bristle sweeps: These look like a stiff broom brush. They work great over uneven floors or thick carpets where a rubber strip might get stuck or tear.
Signs You Need a Replacement
Door sweeps drag across the floor every single time you use the door. The rubber or plastic will eventually tear, crack, or flatten out from all this friction. You should check your exterior doors at least once a year. Close the door during the day and turn off the lights inside the room. If you see daylight shining through the bottom, your sweep is worn out.
You can also run your bare hand along the bottom edge on a windy day to feel for drafts. If you spot tiny bugs gathering near the doorway, that is another clue your seal is failing. Taking care of these small leaks is a big part of maintaining your Windows & Doors.
What It Costs to Replace
Replacing a door sweep is one of the cheapest home repairs you can make. Costs vary depending on where you live and the materials you choose. A basic rubber and aluminum strip sweep costs 10 to 20 dollars at a local hardware store. A heavy duty wraparound sweep might cost 25 to 40 dollars. If you hire a handyman to do the job, expect to pay 75 to 150 dollars for their time and materials. Most homeowners choose to do this simple job themselves to save money.
