Old man winter is just around the corner. Don't suffer through one more winter of high heat bills. Start weatherproofing your home now. You will get the added bonus of cutting your summer cooling bills too. Start with exterior doors. There are many products that you can purchase to seal your doors. Choose the one that meets your needs and skill level.

1. Step 1

   Check your door to see how well it is currently insulated. If you already have weatherproofing on it, make sure it is in good repair and is working correctly to block air. If it is old, cracked, or parts of it are missing, then replace it.

2. Step 2

   There are quite a few weatherproofing products available for doors. Self sticking foam is by far the easiest to install. All you need is a tape measure and some scissors or a utility knife. Measure the door frame and cut to the length to fit. Peel off the protective paper and press into place.

3. Step 3

   Rolled vinyl with aluminum backing is also easy. For this kind you will need nails, hammer, utility scissors that will cut metal, and a tape measure. Installs the same as self sticking, but will attach with nails, not the sticky backing.

4. Step 4

   Foam rubber with wood backing is installed a little different. You will need the same tools as rolled vinyl, but you will need a hand saw instead of scissors. Install it on the edge of the door frame. Nail the wood strip with the door closed. Be sure the foam part is facing the door. The foam will easily move when the door is opened and pop back into place when the door is closed.

5. Step 5

   Spring metal is a bit more difficult to install, but still easy. The same skills as the above examples are used. Simply nail the strip in place and lift the outside edge a bit to get a tight seal.

6. Step 6

   Interlocking metal channels also are a bit harder to install. You will need to add a hack saw to necessary tools. Be sure your measurements are exact. This type needs to fit well and tight.

7. Step 7

   Fitted interlocking metal channels are a challenge. Installation of this type is better left to a professional.

8. Step 8

   Don't forget about the base of your door. There are products made just for this part of your door. The easiest to install is a sweep. You will need a tape measure, screwdriver, and a hacksaw. Cut to fit the bottom of your door and screw into place.
   A door shoe or saddle requires the same tools as the sweep. In some cases, you will have to remove your door and saw off a bit on the bottom to have room for this one.
   Vinyl bulb thresholds will add a threshold if the current one is beyond repair. As with the door shoe, the door must be trimmed to fit.

9. Step 9

   Watch your utility bills go down! Start checking your bills. Chances are, no matter what time of year it is, you bills will be dropping.