Retaining walls show up everywhere in Encinitas: block walls holding back the rear yard in a New Encinitas tract, stacked walls terracing a Cardiff hillside, long driveway walls in Olivenhain, and low garden walls near the beach. Most were built decades ago. Some were engineered, some were built by a previous owner on a Saturday.
What a tired wall looks like
- Leaning or rotating outward at the top.
- Bulging in the middle of a section.
- Horizontal cracks in block walls, or stair-step cracks through mortar joints.
- Separated joints between wall sections.
- Soil washing out at the base or through gaps.
- Constantly wet face or white mineral staining, which means water is getting through instead of being drained.
- Fence posts or a patio above the wall that are tipping toward it.
A slight lean on an old wall that hasn’t changed in years may just need monitoring. A lean that’s increasing, or a wall that supports a driveway, pool, or part of the house, deserves a closer look.
Why walls here start to lean
Water pressure. Saturated soil pushes far harder than dry soil. Walls built without a drain behind them, or with weep holes clogged by roots and silt, take that pressure after every big rain. Irrigation water counts too, and some yards are watered all year.
Too much wall for the footing. Older walls were often built taller than their footing could handle, or were raised later with an extra course or two.
Surcharge. A driveway, parked cars, a spa, or a structure near the top adds load the wall may not have been designed for.
Age and salt. Rebar inside block walls near the beach can corrode, and rusting steel expands and cracks the block. See salt air and concrete corrosion.
Slope movement. On hillside lots, the wall may be telling you the slope is creeping. That’s a geotech question. See hillside and inland bluff foundations.
Anchors, repairs, or a new wall
Start with the water. Clearing weep holes, putting a real drain behind the wall and steering runoff away can sometimes calm a wall down by itself. See foundation drainage.
If the wall has moved but the block is still in decent shape, it can be pinned back into firm soil with tiebacks an engineer designs, or propped up with buttresses or a second wall poured in front.
If one stretch has let go, that stretch gets rebuilt. If the whole wall was too small for its job from day one, the straight answer is a new wall with a proper footing and drainage.
Taller walls and any wall supporting a structure, driveway, or slope generally need engineering and a permit. We coordinate with licensed engineers as needed.
Encinitas permitting notes
A retaining wall is a structure, and building permit rules apply based on height and what the wall supports. Grading that goes with a wall can bring in the City’s grading ordinance. On steep parcels, the Hillside/Inland Bluff Overlay may add review, and on bluff-top parcels the Coastal Bluff Overlay applies, where the usual coastal-permit exemption for repair isn’t available. Rather than guess, we confirm the path for your address. See Encinitas permits for foundation work.
Olivenhain and large lots
Long driveway walls and walls around arenas or outbuildings add up to a lot of linear feet. On those properties we prioritize: which walls protect structures or access, which are cosmetic, and which are carrying water. More on Olivenhain property foundations.
Questions we hear around town
Crib wall, block wall: does the type matter?
A lot. A crib wall is a stack of interlocking concrete or timber pieces filled with soil; a block wall is masonry, usually grouted and reinforced. They fail in different ways, so the first step is figuring out which one you have and how it was built.
A previous owner built the wall without a permit. Now what?
We’ll evaluate it like any other wall. Whether it has to be brought into compliance is a question for the City, and we’ll tell you what we see so you can decide how to handle it.
If the wall gets replaced, who takes out the old one?
We do, when replacement is the plan; demolition and hauling are part of that scope, and the quote says so. If the old wall is holding soil that has to stay put during the work, temporary shoring comes first.
Our old wall is timber. What should we watch for?
Soft spots, sagging, posts leaning out, and soil spilling between boards. Wet soil behind wood speeds decay. Probing a few spots during the visit tells us a lot about what’s left.
Get a Free Quote
Send a couple of photos of the wall and tell us what’s above and below it. We’ll come look and give you a Free Quote. For budgeting, see what affects foundation repair cost.