Chicago’s harsh climate can be brutal on exterior materials—and old siding is one of the first places to show signs of wear. Many homeowners put off replacing or maintaining siding, not realizing that doing so can lead to serious (and costly) damage.
Here’s what happens when old siding is left unchecked:
1. Moisture Damage
Cracked, warped, or loose siding allows water to seep behind the panels. In a climate like Chicago’s—where freeze-thaw cycles are frequent—trapped moisture can lead to:
- Mold and mildew growth
- Rotted wood behind the siding
- Foundation issues due to drainage problems
Left untreated, moisture damage can spread throughout your home’s structure—and you might not notice until it’s too late.
2. Pest Infestations
Gaps and holes in your siding are like open doors to insects and rodents. Common siding-related pest issues in the Chicago area include:
- Carpenter ants nesting in moist wood
- Mice squeezing through cracks and entering wall cavities
- Wasps building nests in loose siding
Replacing or repairing damaged siding is one of the best ways to pest-proof your home.
3. Lost Insulation & Higher Energy Bills
Old siding isn’t just a cosmetic issue—it affects your home’s energy efficiency. Drafty, poorly-insulated siding lets hot and cold air pass through your walls, making your HVAC system work harder.
In Chicago’s freezing winters and humid summers, that can mean skyrocketing utility bills. New siding with built-in insulation (or paired with a house wrap) helps maintain stable indoor temperatures year-round.
If your siding is faded, cracked, warping, or letting moisture in, it may be time to consider a replacement. As siding contractors serving the Chicago suburbs, we see firsthand how early maintenance or replacement can save homeowners thousands in the long run. Whether you’re in Glenview, Arlington Heights, or anywhere in the North/Northwest suburbs of Chicago, we’re here to help you protect your home and your wallet.