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California Concrete & Flatwork.

Flatwork concrete across LA — driveways, patios, walks, ADU slabs. Subgrade compaction, vapor barrier, #4 rebar grid, 3,000 psi mix.

Bay concrete — older homes often have failed driveways from settlement and roots. Assess subgrade, install drainage, form and pour.

Los Angeles

$10 – $30 / sqft for flatwork

Broom finish bottom; stamped + colored top.

Timeline — 1 week for 600 sqft patio.

Los Angeles Concrete & Flatwork

San Francisco Bay Area

$14 – $36 / sqft for flatwork

Hillside access + subgrade prep on older lots lift cost.

Timeline — 1.5 weeks for 600 sqft including subgrade prep.

San Francisco Bay Area Concrete & Flatwork

Scope — what we deliver.

  • Layout + form
  • Subgrade + base
  • Rebar + vapor barrier
  • Pour + finish
  • Joints + cure

Permits look different in LA vs the Bay.

Los Angeles — permit notes

  • Driveway approach permit.
  • Private flatwork usually no permit.
  • ADU slabs always permitted.
  • Drainage to street required.

Bay Area — permit notes

  • Driveway approach permit.
  • Stormwater treatment often required.
  • ADU slabs permitted.
  • Drainage to street/storm system.

How we think about concrete & flatwork.

Exterior work is moisture management, full stop. Roofing, siding, stucco, decks, and concrete all exist to move water away from the building before it has time to soak in. We detail every transition — roof-to-wall, wall-to-deck, deck-to-door — as if it will see a hose test, because in winter it will.

California climates are deceptively hard on exteriors. UV is brutal. Marine air corrodes fasteners. Wildfire embers land on debris in valleys. We default to WUI-compliant materials (Class A roofing, ⅛" mesh vents, ignition-resistant siding) on every exterior job, even where it's not yet required — it's $2–6K extra and it's the difference between a saved house and a lost one.

The schedule, written out.

  1. Week 0

    Inspection + scope

    Roof + flashing inspection, moisture probe of siding, deck post + ledger check, photo documentation.

  2. Week 1–2

    Permits + material procurement

    Permit (most cities require for re-roofs, additions, decks > 30" off grade); material delivery scheduled around rain forecast.

  3. Week 2–4

    Tear-off + dry-in

    Selective demo, sheathing inspection, replace rotted decking, install underlayment + flashing.

  4. Week 4–6

    Install

    Roof, siding, stucco scratch + brown + finish, deck framing + decking, concrete forms + pour.

  5. Week 6–7

    Trim + paint + seal

    Trim, paint, sealant on penetrations, deck stain or color.

  6. Week 7–8

    Inspection + warranty

    Final inspection, manufacturer warranty registration, owner walk.

Materials & assemblies.

ComponentDefault specWhy
Roofing30-yr architectural shingle, standing-seam metal, or single-ply TPO/PVC for low-slopeStanding-seam metal wins lifetime cost in most CA climates.
UnderlaymentSynthetic underlayment + peel-and-stick ice-and-water at valleys and penetrations30-lb felt is no longer the right baseline.
SidingFiber cement (Hardie), engineered wood (LP SmartSide), or stucco with weep screed and 2-layer WRBWRB layering is what controls 90% of stucco failures.
Deck framingPT lumber for posts, joists, ledger; stainless or coated fasteners; flashing at ledgerGalvanized fasteners on PT lumber corrode in 5 years.
DeckingComposite (Trex, TimberTech), thermally modified hardwood, or kiln-dried IPE with hidden fastenersComposite is the lowest-maintenance default for CA sun.
Concrete4000 psi mix, #4 rebar @ 16" o.c., proper expansion + control jointsCracks come from poor jointing, not from the mix.

Hidden costs we flag up front.

Line itemRangeWhen it hits
Sheathing replacement$8–$22/sqfttear-off reveals rot or delaminated OSB
Deck ledger flashing repair$1.5K–$6Kledger was nailed, not bolted with flashing
Stucco crack repair (full re-skim)$6K–$18K1980s synthetic stucco has reached end of life
Tree removal / overhead clearance$1.5K–$8Kroof or wall access requires it
Permit (re-roof + structural)$300–$2.5Kmany cities now require for re-roof + decks

cheaper alternatives

What we'd consider — and what we wouldn't.

  • Overlay re-roof (shingle over shingle)

    30% cheaper but voids most warranties + traps moisture; never on a building you plan to keep.

  • EIFS over stucco

    Better thermal but historically a moisture-management nightmare — only with rainscreen detail.

  • Pressure-treated decking

    60% cheaper than composite but requires re-staining every 2 years to last.

pitfalls — takeover-job patterns

Mistakes to avoid.

  • Skipping the moisture probe of stucco before scope-of-work — a 'paint job' turns into a $25K re-skim
  • Mounting a deck ledger to siding without flashing — #1 source of catastrophic deck failure in CA
  • Not detailing kick-out flashing at roof-to-wall — drives water behind the siding for years
  • Installing concrete without proper joint spacing — random cracking that no patch will hide

Concrete & Flatwork — Los Angeles.

Concrete & Flatwork — Bay Area.

In short.

How much does an LA driveway cost?
Broom $10–$14/sqft; stamped $18–$28/sqft. Tear-out adds $4–$6/sqft.
Will concrete crack in LA?
Yes — we cut control joints at 8–12 ft to direct cracks.
Why is my Bay driveway cracking?
Usually tree roots or settlement. Re-engineer subgrade then re-pour.
Cost of a Bay driveway?
$14–$22/sqft broom; $24–$36 stamped.

More we build.

Got a concrete & flatwork project in mind?

Send us the address. We'll pull local zoning, setbacks, and concrete & flatwork feasibility before you spend on drawings.

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