Get matched with top siding pros in Colton, NY

There are several highly durable types of siding that you can build right on top of without removing it, with wood being one of them, provided it's in excellent condition. However, a common reason for siding replacement is to eliminate materials that are in poor condition, making installing new wood siding over old not recommended. Additionally, the cost of adding siding over existing siding can increase costs to between $7 and $13 per square foot.

The living space of a home doesn’t correlate directly with how many square feet of siding you’ll need, but on average, a 2,000-square-foot home will need 1,700 square feet of siding or 17 squares of siding. Your siding measurements will vary depending on the layout of your home, the number of stories, the size of your doors and windows, and even your roof style.

Mildew grows into porous wood, making it more difficult to remove than regular dirt (and more destructive). We suggest using a dedicated mildew and mold fungicide to remove mildew, which is found in any local home improvement store. Apply a dose of the fungicide to the siding and leave to work according to the instructions, usually for an hour or two. Then wash it thoroughly away and scrub the spot again. Repeat the process if necessary. If nothing is removing the mildew stains, you should plan on removing those clapboard planks in time, as their damage could cause future problems.

Avoid toxic chemicals that can leach into nearby lawns, as well as household ingredients like vinegar that can ruin paint and sealants. Instead, look for a very light detergent or a dedicated exterior siding cleaner. In a pinch, you can use a basic dish or laundry soap, but we suggest sticking with a dedicated cleaner.

If your siding is struggling with algae or moss, which indicates moisture issues, look for an outdoor cleaner that’s specifically designed to clear moss and algae stains. This is also a sign that you need to seal your clapboard against further problems.