Foundation Repair Brentwood
Stability Starts Under Your Feet
Brentwood’s a study in contrasts. Flat lots south of San Vicente. Steep streets up Kenter and Mandeville Canyon. Old ranch homes next to mid-century and new builds. The ground doesn’t care. Clay expands, slopes creep, and older foundations tire. You feel it first: a door that sticks at sunset, hairline cracks stepping across plaster, a floor that dips where the hallway meets the living room.
Alpha Structural has been repairing foundations across Los Angeles since 1993. We know how Brentwood’s soils behave after a dry summer and a fast winter storm. We also know how to fix movement the right way—engineer it, build it, and stand behind it.
Signs Your Brentwood Home Needs Foundation Repair
Small clues add up. A few to watch:
- Cracks in walls, ceilings, or the stem wall near the garage
- Doors and windows that rub or won’t latch cleanly
- Baseboards pulling away, gaps where wall meets floor
- Sloping or spongy sections of flooring
- Exterior steps or patios drifting from the house
These aren’t cosmetic quirks. They point to settlement, heave, or lateral movement. Early action keeps a repair targeted and cost-effective.
Why Brentwood Foundations Move
Two forces lead the list here: expansive clay and hillside geometry. In the flats, irrigation and seasonal rain push moisture into clay, then the soil swells and shrinks. Along the canyons, gravity and stormwater tug at fill and native ground. Add older footings that were never bolted well, or at all, and the structure starts to wander.
We start with a full assessment: structure, soils, drainage, framing, access. Then we propose a plan that fixes the cause and corrects the symptoms. No guesswork. No oversell.
Our Repair Methods
Every house is different. These are the tools we reach for most in Brentwood:
Sister Foundations
We build a new, reinforced footing inside the original to share load and restore bearing. It’s a clean way to strengthen tired concrete without a full replacement, common along long side yards and at garages.
Jack-and-Lift Leveling
For raised foundations with sagging floors, we lift framing back toward level, shim to clean bearing, and correct the load path. We pair this with targeted footing upgrades so the lift holds.
Caisson and Grade Beam Underpinning
On hillsides and at heavy point loads, drilled, steel-reinforced concrete shafts reach competent material. Grade beams tie them together to resist settlement and slide. It’s the standard on steeper Brentwood lots.
Earthquake Bolting & Bracing
Many Brentwood homes predate modern seismic details. We add sill bolts, framing anchors, and shear walls where required so the structure stays tied to its foundation when the ground moves.
Hillside Homes, Canyons, and Drainage
Homes above Sunset see a lot of water when storms line up off the coast. Surface drains, down-drains, and sub-drainage keep runoff from loading your soils. Where retaining walls carry the hill, we check for bowing, cracking, and blocked weeps, then repair or rebuild with proper backdrain systems. Slope stability and foundation health go hand in hand.
What to Expect: Our Process
- Inspection & Measurements: We document cracks, map floor elevations, and review the crawlspace or slab edges.
- Engineering: In-house engineers design the repair, calculate capacities, and prepare plans for permit.
- Permitting: We coordinate with LADBS and, for canyon work, geotechnical requirements as needed.
- Construction: Crews work in phases to keep the home stable and accessible. We keep the site clean and neighbors informed.
- Final Sign-off: City inspection, client walk-through, and maintenance guidance so the fix lasts.
Clear scope. Clear price. Clear communication from start to finish.
Cost & Financing
Foundation repair costs depend on scope: length of footing to replace or sister, number and depth of caissons, access limits, and any drainage or retaining work tied to the fix. After the inspection, we give you a written plan with line-item pricing. We also offer financing through partners so you can move forward without delay.
For Buyers, Sellers, and Property Managers
Buying in Brentwood? A foundation inspection reduces risk before escrow. Selling? A clean structural report speeds the process. Managing a portfolio along San Vicente to Bundy? We provide prioritized repair plans and phased work that respects tenants and schedules.
Why Alpha Structural
- Engineer + Builder under one roof, licensed to design and construct the repair
- Local experience with Brentwood flats and canyon slopes
- No subcontract shuffle, one accountable team from first measurement to final sign-off
- Thousands of successful projects across Los Angeles since 1993
- Real communication, photos, updates, and a single point of contact
We fix structures, not just cracks.
Schedule a Foundation Inspection in Brentwood
If your floors feel off, fresh cracks showed up after the last rain, or doors have given you a new daily workout, let’s take a look. We’ll tell you what’s moving, why it’s happening, and how to correct it, plain language, practical scope.
Call (323) 300-2192 or request an inspection online to get started.
Related Services
The following list represents just some of the types of foundation repair we specialize in:
Call us today to schedule an inspection or request an estimate



