Weather stripping keeps your home comfortable. It seals gaps around doors. This stops cold air from coming in during winter. It also blocks hot air in summer. Old stripping wears out over time. Replacing it saves on energy bills. It blocks dust and bugs too. This guide shows you how. Follow these steps for a tight seal.
Why Replace Weather Stripping?
Doors face daily use. Rain, sun, and wind damage the seals. A good seal cuts heating and cooling costs by up to 20%. It makes your home quieter. Check your doors each year. Look for cracks or gaps. Feel for drafts on windy days. Use a dollar bill test. Slide it between the door and frame. If it moves easily, replace the stripping.
Common signs include:
- Light showing around the closed door.
- Higher energy bills.
- Rattling sounds from wind.
- Water stains near the bottom.
Replace every 2 to 5 years. Do it more often for front doors. High traffic wears them faster. Back doors may last longer.
Types of Weather Stripping for Doors
Choose based on your door and climate. Foam tape works for mild areas. It sticks easily. Rubber or silicone lasts in wet spots. Metal strips hold up in cold places. V-strips fit into grooves. They seal well on sides.
Here are main types:
- Foam tape: Soft and cheap. Good for tops and sides. Lasts 1 to 3 years.
- Rubber or silicone: Flexible and waterproof. Use on exteriors. Lasts 3 to 5 years.
- V-strip (tension seal): Folds to fill gaps. Metal or plastic. Durable for sides.
- Door sweep: For the bottom. Brushes or rubber. Stops dirt and water.
For exterior doors, pick waterproof options. Measure gaps first. Gaps over 1/8 inch need thicker strips.
Tools and Materials You Need
Gather these before you start. Most homes have them. Buy missing items at a hardware store.
Tools:
- Tape measure
- Utility knife or scissors
- Screwdriver
- Pry bar (for stuck strips)
- Sandpaper
- Clean cloth and soap
Materials:
- New weather stripping (match your door type)
- Adhesive remover if needed
- Nails or screws for some types
Link to our guide on must-have tools for new homeowners for more tips.
Step-by-Step Guide to Replace Weather Stripping
Work on a warm day. Above 50°F is best. Keep the door open. This job takes 30 to 60 minutes.
Prepare the Door
Close the door. Look for old stripping. It sits on the frame or door edge. Open the door wide. Clean the area. Use soap and water. Wipe dry. Remove dirt or old glue. Sand rough spots smooth.
Remove Old Stripping
Pull it out gently. Start at one end. Use a pry bar for stuck parts. Unscrew if it has fasteners. Throw away old pieces. They lose shape over time.
For bottom sweeps, lift the door if needed. Most slide off. Check for screws first.
Measure and Cut New Stripping
Measure the door frame. Top first, then sides. Add 1 inch extra. Cut with a utility knife. Use straight cuts. Match angles at corners.
For bottoms, measure the width. Cut the sweep to fit.
Install New Stripping on Sides and Top
Start at the top. Peel backing if adhesive. Press into place. Work down the sides. Overlap at corners for a seal. Nail or screw if required.
For groove types, push into the slot. Use a screwdriver to help.
Close the door. Check fit. It should close without drag.
Add a Door Sweep to the Bottom
Align the sweep. Mark screw holes. Drill pilot holes. Screw it on. Adjust height. It should touch the floor lightly.
For rubber types, trim ends to fit.
Test the Seal
Close the door. Look for light gaps. Feel for air. Use the dollar bill again. It should stay put. Open and close a few times. Adjust if needed.
If drafts remain, check door alignment. Hinges may need tightening. See our home repairs maintenance guide for help.
Common Mistakes to Avoid
Do not rush measurements. Wrong sizes leave gaps. Clean well or new strips fall off. Pick the right type. Foam fails in rain. Test before final fix.
For double doors, seal the middle gap too. Use a T-astragal strip.
How Long Does Weather Stripping Last?
It depends on use and weather. Foam lasts 1 to 3 years. Rubber or metal up to 5 years. Check each season. Replace before winter to save heat.
Tips for Better Results
Seal windows too for full effect. Use caulk on frame cracks. Add storm doors in harsh climates.
For more on home seals, read this guide from This Old House.
Save money with DIY. This fix costs under $20. It pays back fast on bills.
Frequently Asked Questions
How do you seal gaps around a front door?
Clean the frame. Install new stripping on top and sides. Add a sweep below. Test for tight fit.
Can you replace weather stripping without removing the door?
Yes. Work with the door open. Bottom sweeps may need lifting slightly.
What is the best weather stripping for exterior doors?
Rubber or silicone. They resist water and last longer.
How do you prevent pests from entering through door seals?
A tight seal blocks them. Use metal sweeps for extra strength.
For related fixes, check our how to fix a running toilet DIY guide.
This task keeps your home snug. Do it now for quick wins.