Water gets behind siding in every climate, every season, on every building. That is expected. The system is designed for it: a permeable weather-resistive barrier sheds the water that gets past the cladding, flashing directs it around openings, and a drainage plane at the bottom of the wall lets it escape. When all three parts work, the wall dries out between rain events and the sheathing stays intact.
The problem we get called to fix is almost always one of those three parts failing. A WRB that was installed with the seams facing the wrong direction. Flashing that was lapped backwards at a corner. A kick-out flashing that was never installed where the roof meets the wall. Once water is trapped inside the wall, it does not matter what the cladding on the outside looks like — the sheathing is going to rot.
"You can replace the siding every five years and still lose the wall. The cladding is not the waterproofing. The assembly behind it is."
Facade repair is the work of getting the assembly right. We open the wall, dry it out, replace the failed components, correct the drainage details, and only then close it back up with new cladding. That is the difference between a repair that lasts and a repair that comes back next spring.
On commercial and multifamily buildings, facade repair usually involves coordinating multiple trades — roofing, windows, mechanical — and scheduling work around tenants. We handle that coordination as the general contractor on the project.