Lake-effect snow, wind off Lake Ontario and weeks of freezing and thawing — Rochester winters put a home’s exterior through a lot. Siding takes most of it, and small problems that start in the fall tend to be bigger ones by spring.
The good news: most warning signs are easy to spot if you know what to look for. Pick a dry afternoon, walk slowly around the house and check for these five things.
1. Cracked, warped or loose boards
Vinyl gets brittle in the cold and can crack from an impact or a hard freeze. Boards can also warp or pull loose, especially on the walls that take the most wind. A gap or a loose panel is more than a cosmetic problem — it’s an opening for wind-driven rain and snow to get behind the siding.
What to do: a few damaged boards can usually be replaced and blended in with the rest of the wall. If you find damage on several sides of the house, it’s worth asking whether the siding is nearing the end of its life.
2. Soft or rotting trim at the roofline, windows and corners
Wood trim — fascia boards, window and door casing, corner boards — is often the first thing to go. Water collects where the trim meets the roof or the siding, the paint fails and the wood starts to soften. Press on it with a screwdriver: if it gives, there’s rot.
On a recent repair, we replaced rotted wood at the roofline with PVC trim, which doesn’t rot. A job like that can often be done in a few hours.
3. Signs of moisture behind the siding
Water that gets behind siding doesn’t always show on the outside. Watch for bubbling or blistering on the siding, peeling paint or water stains on the inside of exterior walls, mold or mildew along the seams, and a musty smell in rooms along the outside of the house.
This is the one to take seriously. Moisture trapped against the sheathing can cause rot you can’t see until the wall is opened up.
4. Drafts and cold spots near outside walls
If some rooms feel colder than they should, or you can feel air moving near outlets and window trim on exterior walls, gaps in the siding, trim or the seals around windows may be part of the problem. Worn caulk and loose trim let cold air in and warm air out.
5. Fading, chalking or repairs that keep adding up
Siding that has faded unevenly or leaves a chalky residue on your hand is showing its age. That alone isn’t urgent — but if you’re patching something every season, replacing the siding may cost less over time than a steady stream of repairs.
Repair or replace?
A simple rule of thumb: if the damage is limited to a few spots, repair it. If problems show up all around the house — or there’s soft sheathing underneath — replacement is usually the better investment.
A proper replacement is more than new panels. The old siding comes off, the sheathing underneath is checked and repaired, the walls are wrapped with a weather barrier, and then the new siding and trim go on. It’s also the right moment to swap rotted wood trim for PVC and take care of the gutters.
A quick fall checklist
- Walk around the whole house, including the north side and any walls hidden behind shrubs.
- Look for cracked, loose or missing siding boards.
- Press on the trim at the roofline, windows, doors and corners — soft wood means rot.
- Check the caulk around windows and doors for gaps and cracks.
- Clear the gutters so water runs away from the walls, not down them.
- Take a photo of anything you’re unsure about.
Not sure what you’re looking at? Send us a few photos through our contact page or give us a call, and we’ll take a look — the estimate is free. You can also read more about our siding and exterior work or browse recent exterior projects.