Concrete contractor (C-8) in Walnut Creek, CA

4 licenses · checked Oct 27, 2026

There are 4 Concrete contractor (C-8) licenses with an address of record in Walnut Creek, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.5% of the 834 such licenses statewide; Walnut Creek ranks #61 of 354 CA cities for this license type. They are spread across 3 ZIP codes; the most common are 94595 (2), 94597 (1), 94596 (1). Most list Contra Costa County. By business type: Corporation 2, Sole Owner 1, Limited Liability 1. The median first-issue year is 2017; the oldest license dates from 2017. 2 of them come up for renewal or expiration in the next 12 months, so re-check status before you sign a contract.

What a Concrete contractor (C-8) license covers

Concrete (C-8) covers forming, pouring, placing and finishing concrete, such as slabs, driveways, footings and walls.

How to verify a license

Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Official lookup: CSLB Instant License Check.

Concrete contractor (C-8) licenses in Walnut Creek

Showing 4 of 4, A to Z. Listing order is alphabetical, not a recommendation.

Frequently asked questions

How many Concrete contractor (C-8) licenses are in Walnut Creek?

4 active licenses in the CSLB License Master data checked Oct 27, 2026 (0.5% of CA).

What does a Concrete contractor (C-8) license cover?

Concrete (C-8) covers forming, pouring, placing and finishing concrete, such as slabs, driveways, footings and walls.

How do I verify a Concrete contractor (C-8) license in Walnut Creek?

Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Use the license number shown here with the CSLB Instant License Check.

How many Walnut Creek Concrete contractor (C-8) licenses expire soon?

2 of 4 have an expiration date in the next 12 months. A license that lapses must be renewed before the holder can work under it again.

Other license types in Walnut Creek

General building contractor (46) · Electrical contractor (C-10) (9) · Painting contractor (C-33) (9) · General engineering contractor (8) · Plumbing contractor (C-36) (3) · Roofing contractor (C-39) (3) · Landscaping contractor (C-27) (3) · Cabinet and finish carpentry contractor (C-6) (3)

All Concrete contractor (C-8) licenses in CA →

Source: CSLB License Master. Licensed California is independent and not affiliated with the licensing agency. Data checked Oct 27, 2026.