Symptoms
- Visible crack, split, or hole in a siding panel
- Piece of siding missing or hanging loose
- Cracking noticed more in cold weather
Likely causes
- CommonImpact damageA thrown object, ladder, or lawn equipment can crack brittle vinyl on contact.
- CommonCold-weather brittlenessVinyl becomes more brittle and prone to cracking in freezing temperatures.
- PossibleAge and UV degradationSun exposure over many years makes vinyl more brittle and fade-prone.
What to do
- Assess the size of the crack; small cracks can sometimes be sealed, while larger ones need panel replacement.
- For a small crack, clean the area and apply a vinyl- or exterior-grade caulk matched to the siding color as a temporary seal.
- For a full panel replacement, use a zip tool to unlock the panel above from the damaged one.
- Slide the damaged panel down and out, then slide the new matching panel into place and relock the seam above.
- Keep a few spare matching panels on hand if your siding is an older or discontinued color, since exact matches get harder to find over time.
- Check behind any hole for wet or damaged sheathing before closing it back up.
- Reduce future impact risk by keeping equipment and hoses away from vulnerable siding areas.
Tools and parts
- Vinyl siding zip tool
- Utility knife
- Tape measure
Replacement vinyl siding panelSearch: “vinyl siding panel replacement”
When to call a pro
Call a siding contractor if matching panels aren't available or the damage covers a large area.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.