There’s a fair assumption that siding problems belong to old houses. Peeling paint, warped boards, that tired look. So when someone finds soft wood on a home built in 2001, the first reaction is usually confusion. The house isn’t old. The siding looks fine from the sidewalk. And yet the corner under the bedroom window gives a little when you press it.
That gap between how a wall looks and how a wall is actually doing is where most of the expensive surprises live.
The siding usually isn’t the culprit
Siding sheds water. That’s its job, and most products do it well for decades. What actually keeps water out is everything behind and around it. The flashing over each window. The kick-out where a roofline meets a wall. The membrane lapped behind the trim. None of it is visible once the job is done.
Those details take time, and time is the first thing that gets squeezed when a neighbourhood is going up fast. A crew can hang panels beautifully and still install a head flashing backwards. The wall looks finished. It just quietly drinks every winter.
What early failure actually looks like
It’s rarely dramatic. Watch for staining that runs down from the bottom corners of windows. Paint bubbling on trim while the siding beside it stays clean. A soft patch near where a deck ledger meets the house. Caulk that pulls away from the same joint every spring.
That last one matters more than people think. If you’ve re-caulked the same seam three years running, the caulk was never the problem. Something above it is letting water in and the caulk is just the part you can reach.
Catching it early is the whole game
Rot spreads sideways along the bottom plate and up into the framing. Caught in the first year or two, the fix is usually one section: open the wall, replace what’s soft, correct the flashing, close it back up. Left for five years, the same leak turns into a full wall rebuild with sheathing replacement.
Mi Casa Exteriors covers this part of Surrey and sees both versions regularly. The company uses its own crews rather than subcontractors, quotes in writing, takes zero deposit, and doesn’t collect final payment until the homeowner is satisfied. Every job carries a 25-year workmanship warranty signed by both the company and the installer who did the work.
Where the rules changed
There’s a hard line in the sand here. Since 2006, the BC Building Code has required a drainage gap behind cladding in coastal areas, including this one. Homes built after that have a second line of defence. Water that gets past the siding has somewhere to go.
Homes built in the years just before that change don’t. Whatever gets in stays in, pressed against the sheathing. That’s why a house from 1999 and a house from 2010 can age so differently despite looking similar from the street.
What to do about it
Walk your walls once a year, ideally in late winter when everything has been wet for months. Look at window corners, deck connections, and anywhere a roof meets a wall. If you find staining, softness, or paint that keeps failing in one spot, get someone to open a small section and look.
It’s a cheap question to ask and an expensive one to ignore.