Trusted Waterproofing Contractor in Claremont

Deck Drainage at the Foot of the San Gabriels

Foothill ground gives water momentum, and Claremont has it. The city occupies the San Gabriel Valley at the foothills of the San Gabriel Mountains, with nearly 64 percent of its occupied homes owner occupied. A deck that only sheds water sends it straight to the base of a wall or into a slope, and the damage turns up somewhere other than the deck, which is why the diagnosis often takes longer than the repair.

We look at where the water is going before deciding what goes on top of the deck. Slope, drains, and the detail where the surface meets a wall or a post do more work than the coating brand ever will.

Diagnosis on a foothill property usually starts at the low corner. We check whether the deck still has fall, whether the drain sits at the low point or an inch above it, whether the edge metal has a drip on it or is dumping straight down the stucco, and whether the discharge lands on grade that carries it away or against the foundation.

The other 36 percent of occupied units are rented, and that side of the work looks different: an exterior stair serving two or three doors, a second floor landing, a walkway where the surface has been ground down at the traffic line. Those get staged so nobody loses their route while the work runs.

Once we open a deck, the story is written in the plywood. Dark staining that runs from the wall out means the ledger detail failed. Staining that starts at a post and spreads means the penetration did. Delamination across whole sheets means it has been wet a long time. We show you what is there before deciding what goes back.

Get a Free Estimate in Claremont