#9: Caulk and seal gaps and holes in exterior walls.
Cost: $6–$10 Savings: Varies*
Follow the steps below to caulk and seal holes.
Steps:
Check around plumbing pipes, telephone wires, exhaust fans, dryer vents, sink and bathtub drains, around fireplaces and under countertops for small holes and cracks where air can leak.
Use expanding foam for big holes and caulking to seal small holes and gaps.
* Individual circumstances may vary. Check with PGE or your retailer for more information.
