Plain concrete flatwork is published at roughly $6 to $12 per square foot installed across the country in 2026. We do not post a Santa Rosa price sheet. A flat lot on the west side with open truck access and a hillside lot in Fountaingrove that needs a pump are two different jobs, even at the same square footage.
The dollar ranges on this page are national figures that HomeGuide published for 2026. They are not quotes from us. Sonoma County labor rates, material prices, truck access and the soil on your lot will push a real price above or below them. Last checked October 2026.
How much does a concrete driveway cost?
The published national range for a concrete driveway is $6 to $15 per square foot, which comes to $2,400 to $8,600 for a typical two-car driveway. A standard plain finish is $6 to $10 per square foot. Basic decorative work is $10 to $15. Around Santa Rosa the items that move the price most are tear-out of the old slab, how much clay has to be dug out and replaced with compacted rock, and whether the truck can back up to the forms.
| Driveway | National published cost |
|---|---|
| 20x20 (400 sq ft) | $2,400 to $6,000 |
| 24x24 (576 sq ft) | $3,500 to $8,600 |
| Standard plain, per sq ft | $6 to $10 |
| Basic decorative, per sq ft | $10 to $15 |
How much does concrete cost per square foot?
An installed concrete slab is $6 to $12 per square foot by the national figures. Thickness changes it: a 4-inch slab is listed at $6 to $8 per square foot and a 6-inch slab at $8 to $10. Those numbers assume ordinary access and ordinary ground. Removal of old concrete, pumping up a slope and extra base rock are separate lines.
How much does a concrete patio cost? What is fair for a 20x20 patio?
A plain concrete patio is published at $4 to $12 per square foot, and a stained or stamped one at $8 to $30. For a 20x20 patio that gives $1,600 to $4,800 plain and $3,200 to $12,000 stained or stamped, so a quote inside those brackets is in the normal national band. A plain 12x12 is $600 to $1,700. There is no published row for 12x20 or 16x20. Multiply 240 or 320 square feet by the per-foot range to get a rough bracket.
How much does it cost to pour a slab for a 24x24 garage or a 30x40 shop?
The published slab sizes are 10x10 at $600 to $1,200, 12x12 at $860 to $1,700, 20x20 at $2,400 to $4,800 and 30x30 at $5,400 to $10,800. HomeGuide prints no row for 24x24 or 30x40, so the next two figures are our arithmetic from its $6 to $12 per square foot range: about $3,460 to $6,900 for a 24x24 slab (576 sq ft) and $7,200 to $14,400 for a 30x40 slab (1,200 sq ft). A slab that carries a building in Santa Rosa is designed for earthquake loads and for the soil, with footings and steel shown on permit drawings. That design work is priced from the plans, not from a per-foot figure.
How much is a yard of concrete?
Ready-mix is published at $119 to $147 per cubic yard, with delivery included for up to 20 miles. That covers the material in the truck and nothing else. Forming, base rock, steel, placing, finishing and cleanup make up most of a bill, which is why the price per yard is a poor guide to the cost of a finished driveway.
How much does it cost to remove and replace an old driveway?
To remove and replace a driveway, add two published numbers together. Removal with disposal is $3 to $8 per square foot, or $1,200 to $4,500 for a whole driveway. The new driveway is then $6 to $15 per square foot. Our quotes list tear-out as its own line so you can see it.
How much does it cost to have old concrete broken up and hauled away?
Having old concrete broken up and hauled away is published at $3 to $8 per square foot with disposal included. Thick slabs, slabs full of steel and back yards where everything leaves by wheelbarrow sit at the upper end. We handle tear-out and haul-away ourselves.
How much does stamped concrete cost compared with plain? What about color or stain?
Stamped concrete is published at $8 to $19 per square foot, compared with $6 to $10 for a plain driveway and $4 to $12 for a plain patio. Listed examples are $3,200 to $7,600 for a 20x20 stamped patio, $6,900 to $10,400 for a two-car stamped driveway and $800 to $1,700 for a 4x20 stamped walk. For color or stain on its own there is no published upcharge, so we print no figure. We price it once you have picked a color and we have seen the surface.
How much does a concrete walkway cost?
The national figure for a concrete walkway is $7 to $17 per square foot installed. At the usual 4-foot width that is $28 to $68 per running foot, and the average job is listed at $1,400 to $3,400. A public sidewalk panel in Santa Rosa also carries the cost of the city encroachment permit.
How much does a concrete retaining wall cost?
A concrete retaining wall cost is published at $3,000 to $10,000 for an average job, or $45 to $270 per linear foot, or $15 to $45 per square foot of face. Hillside walls on the east side of Santa Rosa that need an engineer's design and a building permit carry those fees on top.
How much does a parking pad or sidewalk cost for a small business?
No national figure was published for commercial parking pads or lots, so we give no number. For a small business the price depends on truck weights, drainage, the accessible route from parking to the door, and any work in the city right of way. We price it after walking the site. For a plain private walk, the walkway range above is a fair starting bracket.
My three quotes for the same patio are far apart. Which one should I believe?
Believe the one that tells you what is under the concrete. When three quotes for one patio land far apart, the contractors are rarely pricing the same job. One has allowed for digging out clay and bringing in compacted rock. Another plans to pour on what is there. Line the quotes up and compare depth of excavation, base rock, slab thickness, steel, joint spacing, finish and haul-away. On Santa Rosa clay the base is the part that decides whether the patio stays flat.
The contractor now wants extra for a gravel base after demolition. Is that fair?
It can be fair if the ground turned out worse than anyone could see, and it should have been covered in the quote. Under old slabs here we sometimes find wet clay, old fill or roots. More rock is then a real cost. A careful quote names a unit price for added base before the job starts. If you are asked to pay extra for the gravel base with nothing on paper, go and look at the exposed ground, ask for the quantity and price in writing, and sign the change before the rock arrives. The Contractors State License Board advises homeowners to get every change in writing.
How do I know if a concrete quote is fair?
A concrete quote is fair when it falls within the published range for that kind of work and shows its parts. Expect to see the area, thickness, excavation and base, reinforcement, joints, finish, removal, permit fees and cleanup, plus a payment schedule that follows California's deposit limit. A single lump sum with no breakdown cannot be judged at all.
The real number for your property comes from a free on-site estimate with measurements and a written quote. Call (707) 385-5837, or text a photo of the area.