Donald S Mac Lean Inc
concrete contractor in San Francisco, California 94134
- Address
- 150 Executive Park Blvd # 4575, San Francisco, CA 94134
- Open
- 7 days a week
- Website
- dsmconcrete.com/
- Service area
- San Francisco, Bay Area
- Phone
- (415) 468-7161
About
Donald S Mac Lean Inc has served the Bay Area since 1985, specializing in commercial concrete construction and general engineering. The company operates 24/7 and can be reached at (415) 468-7161. The team takes pride in delivering high-quality concrete work.
For inquiries or to schedule a consultation, contact the San Francisco office at 150 Executive Park Blvd, Suite 4575, or visit their website.
Services
- Commercial concrete construction
- General engineering
Service Area
Serving San Francisco, Bay Area.
Frequently Asked Questions
What hours does Donald S Mac Lean Inc operate?
The company is open 24/7, every day of the week.
Hiring a Concrete Contractor in San Francisco, California
In California, concrete contractors must hold a state license. The Contractors State License Board (CSLB) classifies concrete work under the C-8 Concrete Contractor license type. Before hiring any contractor, verify their license status through the CSLB online database at cslb.ca.gov. You can search by license number (an 8-digit number found on the contractor's pocket license), business name, or owner name.
Building permits are required for most concrete work in California. The California Building Standards Code requires a separate permit before any structure can be erected, constructed, enlarged, altered, repaired, moved, improved, removed, converted, or demolished. Permit requirements vary by city and county, so check with your local San Francisco building department to determine what permits your project needs.
When selecting a contractor, ask to see their active license and verify it with the CSLB. Review your contract carefully before signing, and ensure the agreement covers scope of work, timeline, and payment terms. The CSLB website has resources on home improvement contracts and hiring practices.
What license type do I need to verify for a concrete contractor in California?
Look for a C-8 Concrete Contractor license. You can verify the license number and status through the CSLB online database at cslb.ca.gov. [1, 4]
How do I check if a concrete contractor is licensed?
Visit the CSLB Check A License page at cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. You can search by the 8-digit license number on their pocket license, their business name, or the owner's name. The search will also show any complaint disclosures. [4]
Do I need a building permit for concrete work in San Francisco?
According to the California Building Standards Code, a building permit is required before most concrete structures can be constructed or altered. Requirements vary by city and county, so contact your local San Francisco building department to confirm what permits your specific project requires. [3]
What should I ask a concrete contractor before hiring?
Ask to see their active C-8 license and verify it through the CSLB database. Review the contract carefully to understand the scope of work, timeline, payment schedule, and any guarantees. The CSLB website has a detailed Hiring a Contractor guide with information on contracts and binding agreements. [2, 4]
Sources
- California CSLB — licensing classifications (read 2026-09-21)
- California CSLB — hire a licensed contractor (read 2026-09-21)
- California CSLB — do I need a building permit? (read 2026-09-21)
- California CSLB — check a license (read 2026-09-21)
Contact Information
Address: 150 Executive Park Blvd # 4575, San Francisco, CA 94134
Phone: (415) 468-7161
Website: http://www.dsmconcrete.com/
Business Hours
| Monday | 12 AM – 11:59 PM |
|---|---|
| Tuesday | 12 AM – 11:59 PM |
| Wednesday | 12 AM – 11:59 PM |
| Thursday | 12 AM – 11:59 PM |
| Friday | 12 AM – 11:59 PM |
| Saturday | 12 AM – 11:59 PM |
| Sunday | 12 AM – 11:59 PM |