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California contractor license
Biological Technology Inc
Biological Technology Inc of Oakhurst holds California license 477941 (A General Engineering, C34 Pipeline, C42 Sanitation System, C57 Well Drilling). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Mar 31, 2028.
Licensed 41 years, longer than 90% of 21 active Oakhurst general contractors.
Active
Biological Technology Inc, Oakhurst
- License
- 477941
- Class
- A General Engineering; C34 Pipeline; C42 Sanitation System; C57 Well Drilling
- Expires
- Mar 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to May 1, 2027
CSLB file dated Oct 29, 2026
From the CSLB file dated Oct 29, 2026. Not a consumer report; check the board before you hire.
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Western Surety Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredSouthern Insurance Company, from May 1, 2026, to May 1, 2027
Who is on this license?
- Officer
- Steven R. ChildressSince Mar 18, 2024
- Responsible managing officer
- Don R. BalesSince Aug 9, 1985
- CEO and president
- Joel P. BalesSince Mar 27, 2018
What work does this license cover?
Issued Aug 9, 1985. Reissued Mar 27, 2018.
- A General Engineering
- C34 Pipeline
- C42 Sanitation System
- C57 Well Drilling
Which other Oakhurst businesses hold A General Engineering?
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
- Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.
If the license is lapsed
- Don't sign or pay a deposit until the CSLB shows the license active again.
- Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Oct 29, 2026)
- Contractors State License Board (CSLB)