Question 1

How much does a concrete driveway cost per square foot in Southern California?

Accepted Answer

A standard driveway runs $10–$18 per square foot in San Diego, more for stamped or colored work. Southern California quotes sit near the top of the national ranges. Demolition of the old slab is usually a separate line. Standard Driveway, San Diego: $10–$18 / sq ft. Stamped Driveway, San Diego: $15–$28 / sq ft. Standard Driveway, Los Angeles: $8–$20 / sq ft. Tear-Out And Replace, Los Angeles: $15–$18 / sq ft. National Guides, Lower Range: $6–$15 / sq ft. National Guides, Upper Range: $8–$20 / sq ft. Removing The Old Slab: $2–$6 / sq ft.

Question 2

What does a concrete patio cost in San Diego or Los Angeles?

Accepted Answer

Most San Diego patios fall between $12 and $25 per square foot, with the finish driving the price. Quotes vary by contractor and city, and size, access and demolition explain the rest of the spread. Broom Finish: $12–$16 / sq ft. Exposed Aggregate: $14–$22 / sq ft. Stamped Or Stained: $18–$25 / sq ft. Second San Diego Quote, 4-Inch Reinforced: $7.25–$8.30 / sq ft. Second San Diego Quote, Decorative: $11.20–$22.47 / sq ft. Los Angeles, Per Square Foot: $4–$13. Los Angeles, Average Job: $5,248.

Question 3

How much does concrete removal cost per square foot in San Diego?

Accepted Answer

San Diego concrete removal averages $2–$6 per square foot, and haul-away and disposal are included in our quotes. Thicker or heavily reinforced slabs cost more to break out, and small jobs hit a minimum charge. Typical Range: $2–$6 / sq ft. Most Residential Jobs: $3–$5 / sq ft. Minimum Charge Under 100 sq ft: $500–$1,000. Standard 4-Inch Slab: $2–$4 / sq ft. 6-Inch, Post-Tensioned Or Rebar-Heavy: $4–$6 and up / sq ft. A 600 sq ft Driveway: $1,200–$2,400. 6-Inch Slabs Cost: 20–40% more. Heavily Reinforced Slabs Cost: 30–50% more.

Question 4

How much does an ADU slab foundation cost in California?

Accepted Answer

Slab-only work runs about $7.67–$8.53 per square foot in California, but an ADU foundation costs more: it adds engineered footings and stem walls with No. 4 rebar, a moisture barrier, soil presaturation on clay and inspections. We price from your plans and soils report. California Slab Only: $7.67–$8.53 / sq ft. Los Angeles Slab: $4.56–$9.12 / sq ft. Los Angeles Average Job: $6,134.

Question 5

Are estimates free, and what changes the price most?

Accepted Answer

Yes, estimates are free, and five things move the price most: thickness, reinforcement, finish, demolition of existing concrete and site access. We walk the site, check truck access, grade and drainage, then send a written, itemized estimate with permit fees as their own line.

Question 6

Do I need a permit to pour a concrete patio slab in California?

Accepted Answer

Usually not for an at-grade slab with no roof, but cities amend the rules, so we check yours first. Add a cover, or pour under a garage, ADU or shed over 120 square feet, and a building permit is required. Ask your HOA too.

Question 7

Do you need a permit for a new concrete driveway in San Diego County?

Accepted Answer

Your driveway is exempt under CRC R105.2, but the approach, apron, curb and sidewalk sit in the public right-of-way and need one. San Diego and Oceanside both issue right-of-way permits; San Diego offers over-the-counter Rapid Review. We pull it and book the inspection.

Question 8

What permits apply to driveway approaches and sidewalks in Los Angeles, Orange and Riverside counties?

Accepted Answer

Every jurisdiction requires a permit for work in the public right-of-way; only the name changes. Each Orange County city issues its own, and we pull whichever applies with the license and insurance the office asks for. Riverside issues most within 14 working days. City Of Los Angeles: A-Permit. Unincorporated LA County: Road Construction Permit. Unincorporated Orange County: Encroachment Permit. Unincorporated Riverside County: Encroachment Permit.

Question 9

Do stormwater rules affect a new driveway or patio?

Accepted Answer

Not for a single-home driveway or patio. The thresholds in San Diego County's 2020 BMP Design Manual and LA County's LID ordinance (Title 12, Chapter 12.84) are far larger than any house lot. Large commercial slabs can cross them, and we flag it early. San Diego Trigger: New Impervious Surface: 10,000 sq ft. San Diego Trigger: Replaced On An Existing 10,000 sq ft Site: 5,000 sq ft. San Diego Trigger Where Runoff Reaches A Sensitive Area: 2,500 sq ft. Los Angeles County Residential Trigger: 10,000 sq ft.

Question 10

How thick should a residential concrete driveway be?

Accepted Answer

Four inches is the minimum for cars and SUVs; go thicker for pickups, RVs, boats and delivery trucks. We also thicken the edges where tires turn in from the street. Cars And SUVs: 4 inches. Pickups, RVs, Boats, Delivery Trucks: 5 or 6 inches. Patios And Walkways: 4 inches. Going From 4 To 5 Inches: nearly 50% more load. Thickened Edge, Extra Depth: 1–2 inches. Thickened Edge, Distance In From The Perimeter: 4–8 inches.

Question 11

Does a concrete driveway need rebar or wire mesh?

Accepted Answer

We use rebar at 18 inches on center each way, not wire mesh. Light mesh is hard to keep in place and often ends up near the bottom of the slab. No reinforcement stops cracks. Joints decide where they form; rebar holds them tight. Rebar, Each Way: 18 inches on center. Wire Mesh: not used.

Question 12

How far apart should control joints be, and how deep?

Accepted Answer

About 10 feet apart on a 4-inch slab, cut the same day. Panels should be close to square, and in Southern California heat we cut early, before shrinkage stress builds. Joint Spacing On A 4-Inch Slab: about 10 feet. Maximum Spacing, Any Slab: 12 feet. Panel Length Against Its Width: no more than 1.5 ×. Joint Depth, Minimum: 1/4 of the slab. Joint Depth On A 4-Inch Slab: 1 inch. Cut With An Early-Entry Saw, After Finishing: 1–4 hours. Cut With A Conventional Saw, After Finishing: 4–12 hours.

Question 13

How should a concrete driveway or sidewalk drain?

Accepted Answer

A driveway should fall away from the house toward the street, and a public sidewalk has to meet ADA slope limits. Getting water off the slab and away from clay soils is the cheapest crack prevention there is. Fall Away From The House, First 10 ft: 1/4 inch per foot (2%). Fall Onward Toward The Street, Minimum: 1/8 inch per foot. Grade Beside Footings, First 5 Feet: 2%. Sidewalk Cross Slope, ADA Limit: 1:48, about 2%. Sidewalk Running Slope, ADA Limit: no more than 5%.

Question 14

What does an ADU or room-addition foundation involve in a Southern California seismic zone?

Accepted Answer

Most populated areas of California map to Seismic Design Category D under the California Residential Code (R301.2.2), which means reinforced footings and stem walls. You need a building permit, plan check, inspections before and after the pour, and usually a soils report. Seismic Categories D0 Through D2 (R403.1.3): minimum No. 4 bars. Concrete Cover Where Cast Against Earth: 3 inches.

Question 15

What is expansive soil, and how does it change a foundation?

Accepted Answer

Expansive clay swells when it gets wet and shrinks in drought, which lifts and drops a slab. It sits under inland Los Angeles County, the San Fernando Valley and parts of Orange County, and it changes the whole foundation detail. Soil Counts As Expansive Above An Expansion Index Of: 20. Swelling When Wet: up to 10%. Footings, Poured Monolithic With The Slab, Minimum Depth: 24 inches. Continuous Bars In The Footings: four No. 4. Slab Over Moderately Expansive Soil (PDS 065): 4 inches. Slab Bars Each Way: No. 4 at 18 inches. Moisture Barrier: 10 mil. Soil Presoaked Before The Pour: 18 inches deep. Finish Grade Away From The Footings: 2% for 5 feet.

Question 16

What strength of concrete does California require for foundations, driveways and slabs?

Accepted Answer

The code minimum is 2,500 psi for foundations and interior slabs; driveways and garage slabs are usually specified higher. Strength is tested on cylinders at 28 days. We order the mix to your plan, or to the ranges below without one. Foundations And Interior Slabs On Grade (CRC R402.2): 2,500 psi minimum. Foundations Other Than Light-Frame Homes, Seismic D–F: 3,000 psi. Driveways And Garage Slabs: 3,000–4,000 psi. Sidewalks, Patios And Steps: 2,500 psi.

Question 17

Do you pour slabs for garages, workshops and sheds, and do they need a permit?

Accepted Answer

Yes. A slab that carries a structure is a foundation, so a garage, workshop or ADU slab needs a building permit and inspections. A one-story detached accessory structure of 120 square feet or less is exempt under CRC R105.2, but check your city and HOA. Garage And Carport Slabs (CRC Table R402.2): 2,500 psi minimum.

Question 18

How does stamped concrete compare with pavers on cost?

Accepted Answer

Stamped work runs $15–$28 per square foot in San Diego; price a paver quote for the same footprint the same way. A paver bid should include the base, edge restraint and joint sand, and pavers need joint-sand upkeep that stamped concrete does not. Stamped Driveway, San Diego: $15–$28 / sq ft. Stamped Or Stained Patio, San Diego: $18–$25 / sq ft. Stamped Work, National Guides: $12–$18 / sq ft.

Question 19

Stamped concrete vs pavers: which lasts longer in Southern California?

Accepted Answer

Both last decades here, because there is no freeze-thaw cycle to break them down. Pavers flex with soil movement and can be re-set one at a time; stamped concrete resists it with a compacted base, rebar and correctly spaced joints. Either fails without drainage.

Question 20

How often should stamped or colored concrete be resealed in San Diego?

Accepted Answer

Reseal when the surface stops beading water or the color dulls, typically every two to three years in full sun. We apply the first coat after the 28-day cure. Full sun and coastal salt air shorten sealer life, and plain broom-finished concrete can go unsealed.

Question 21

Which concrete finish is best for a pool deck or sunny patio?

Accepted Answer

Broom finish and exposed aggregate grip best when wet, which is what matters around a pool. Lighter colors and light aggregate stay cooler underfoot than dark stamped patterns. Ask for a grit additive in the sealer on any pool deck. Pool Decks, San Diego: $15–$30 / sq ft. Exposed Aggregate Patio: $14–$22 / sq ft.

Question 22

How long before you can walk or drive on new concrete?

Accepted Answer

Walk on it after a day or two and park a car on it at 14 days; keep trucks, RVs and trailers off until the full 28-day cure. We follow the standard schedule, because strength comes from curing, not drying. Walk On It: 24–48 hours. Light Vehicles: 14 days. Strength Reached By Day 7: about 70%. Full Cure: 28 days.

Question 23

How does hot weather change concrete curing, and what do you do about it?

Accepted Answer

Heat, wind, sun and low humidity pull water out of fresh concrete, and a slab cured hot ends up weaker later. So inland we pour at first light, dampen the subgrade and forms, use windbreaks or evaporation retarders, and keep curing going for days. Extra Precautions Start When Evaporation Passes: 0.20 lb/sq ft/hr. Shrinkage Cracking Highly Likely Above: 0.25 lb/sq ft/hr. Poured At 90°F Instead Of 73°F, 28-Day Strength: 5–10% lower. Concrete Cured Hot Is Weaker Than Cured Near: 70°F. Curing Continues For: 3–7 days.

Question 24

Should I spray my new concrete with water?

Accepted Answer

Only if we ask you to. On most Southern California pours we apply a curing compound right after finishing, which respects local water rules. Sprinkling, fogging, wet burlap and plastic sheeting also work. If we specify water curing, we give you a schedule. Curing Continues For: 3–7 days. Moist-Cured 7 Days Vs Uncured: about 50% stronger.

Question 25

What is the best time of year to pour concrete in Southern California?

Accepted Answer

Any month. Southern California has no freeze-thaw season, so we pour year-round. Summer heat inland means dawn starts and extra curing protection, and fall Santa Ana winds bring low humidity and high wind. Rain in the forecast is what reschedules a pour.

Question 26

Why does concrete crack in Southern California?

Accepted Answer

Concrete cracks when tensile stress exceeds its strength: fast drying in heat and wind, joints too far apart, expansive clay that heaves and settles, a poor base, or heavy trucks on a 4-inch slab. A compacted base, correct thickness and curing minimize it.

Question 27

Can a cracked concrete driveway be repaired, or does it need to be replaced?

Accepted Answer

Hairline cracks that stay tight are cosmetic. One lifted panel or a spalled patch can usually be repaired or resurfaced. Cracks across several panels, a vertical step or heaving mean the base has failed, and a patch over a failed base fails with it. Resurfacing Instead Of Replacing: $3–$10 / sq ft.

Question 28

Can you pour new concrete over my old slab?

Accepted Answer

Only when the existing slab is sound, stable and drains properly. A thin overlay follows whatever is underneath it, so cracked, heaved or settled concrete comes out first and the new slab gets a compacted base. Disposal or recycling is included in our quotes. Removing The Old Slab, San Diego: $2–$6 / sq ft.

Question 29

What are the signs a slab foundation needs attention?

Accepted Answer

Watch for cracks that widen, especially stair-step or diagonal ones, doors and windows that stick, floors that slope or hump, gaps at baseboards, and slabs that heave or sink at joints. Expansive clay, not earthquakes, is the usual cause. Get them looked at early. Soil Counts As Expansive Above An Expansion Index Of: 20.

Question 30

Which cities and counties does Raaw Concrete Inc. work in?

Accepted Answer

We work across San Diego, Orange, Riverside and Los Angeles counties from our Oceanside yard. That includes Carlsbad, Vista, San Marcos, Escondido and the City of San Diego; San Clemente, Irvine and Anaheim in Orange County; Temecula and Murrieta; and Long Beach.

Question 31

Is Raaw Concrete Inc. licensed, bonded and insured, and what is a C-8 license?

Accepted Answer

Yes. Raaw Concrete Inc. holds an active C-8 Concrete license, is bonded, and carries general liability and workers' compensation. A C-8 contractor forms, pours, places and finishes flat, pavement and mass concrete, the work we do. Verify any license at cslb.ca.gov before you sign. CSLB License: #1125756. Classification: C-8 Concrete. Status: Active. Jobs That Need A License (B&P 7048, As Amended By AB 2622): $1,000 or more in labor and materials.

Question 32

What should I check before hiring any concrete contractor in California?

Accepted Answer

Verify an active CSLB license in C-8 and workers' compensation at cslb.ca.gov. Unlicensed work is limited to jobs under $1,000, with no employees and no permit. Get a written, itemized bid stating thickness, base, reinforcement, joints, curing and timeline. Ask about expansive soil and permits. Classification For Flatwork And Slabs: C-8 Concrete.

Question 33

How long does a project take, and how do I prepare for pour day?

Accepted Answer

Most residential driveways and patios take about 3 working days, depending on the job, and always in a timely fashion. Before pour day, clear a path for the truck, move cars off the street, shut off irrigation, and keep pets and kids inside. Monday – Friday: 7:00 AM – 5:00 PM. Saturday: 7:00 AM – 3:00 PM. Sunday: Closed. Underground Utilities Marked Through: DigAlert 811.

Question 34

Do you work as a concrete subcontractor for general contractors?

Accepted Answer

Yes. Our founder started Raaw Concrete Pumping in 2017, and we still pump and place for general contractors, builders and ADU companies: footings, stem walls, slabs-on-grade, curbs, approaches and site prep. Under B&P 7057 a B contractor needs a C-8 sub for concrete-only work.

Southern California Concrete FAQ

What Does Concrete Cost in Southern California?