Is there a flood history for coastal and canyon areas in San Diego?
Not one that this site can cite. The sources used for this site do not contain a flood event for the coastal or canyon ZIP areas of the City of San Diego. The crew reads each site on its own conditions rather than on a history that cannot be confirmed.
The sources this site uses do record events for the city and the region, including the San Diego River and a 1987 storm that flooded Mission Valley. None of those is a record for a coastal or canyon ZIP area, and this page does not stretch them to fit.
If a neighbor or a listing says a coastal or canyon area has flooded before, ask for the source and the date. The crew can check the site's own conditions, but the history itself is a question for the local records.
How does a crew check the outside of a building?
The crew checks the grade, the gutters, the downspouts, the drains and the foundation for the path water takes toward the building. Each item is noted with the condition seen on the day, and the water's route is traced from the outside to the materials inside.
Grade is the first thing to read. Ground that slopes toward a wall, or a planter that holds water against the foundation, sends water to the wrong place after every rain.
Gutters and downspouts are checked for overflow and for discharge that lands near the wall. A downspout that ends at the foundation can soak the base of the wall even when the gutter looks clean.
What can the homeowner do before the crew arrives?
Take photographs of the wet areas, the gutters and the grade, and write down when the water appeared and where it went. Clear any debris you can reach safely from the gutters and drains, and move items away from the wet wall.
A short written note helps the crew more than a long description. Say which wall was wet, which way the water ran, and whether the rain was heavy or light when it appeared.
Do not dig or regrade the yard yourself while the building is wet, since that can send more water toward the foundation. Ask the crew what it recommends for the grade.
What moves the price for a coastal or canyon site?
The price depends on the water's route, the number of materials it reached and the scope of the drying. Any grading, drain or foundation work is a separate job for the trade that does it. No figure is given on this site, and the price is explained and approved before the work starts.
A drain that needs clearing is a short task, and a regrade or a foundation repair is a much larger one. The crew separates these in the scope, so you can see which items are its work and which belong to other trades.
Ask for the scope in writing, with the site notes attached. A scope that names the source and the route is easier to check against the readings.
How do I stop water coming back to the same wall?
Fix the path, not only the wet wall. Clear the drains, redirect the downspouts away from the foundation and check the grade with a landscape or grading contractor. The crew can point out the path it saw, and the owner decides the fix.
Water that keeps returning to one wall usually has one route, and the route can often be seen from the outside. A downspout that dumps at the corner, or a planter that holds water against the wall, is the most common cause.
Recheck the wall after the next heavy rain. A dry wall after a storm is a good sign, and a wet line that returns is the signal to call the line again.