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California contractor license

Deep Elm Construction LLC

Deep Elm Construction LLC of San Francisco holds California license 1001057 (B General Building, C10 Electrical, C36 Plumbing). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Feb 28, 2027.

Active

Deep Elm Construction LLC, San Francisco

License
1001057
Class
B General Building; C10 Electrical; C36 Plumbing
Expires
Feb 28, 2027
Bond
$25,000
Workers' comp
Insured to Jan 9, 2027

CSLB file dated Oct 30, 2026

From the CSLB file dated Oct 30, 2026. Not a consumer report; check the board before you hire.

Has the board taken action on this license?

None in the CSLB file dated Oct 30, 2026. Confirm with the board: CSLB license check

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
InsuredState Compensation Insurance Fund, from Jan 9, 2026, to Jan 9, 2027

Who is on this license?

Responsible managing member
Matthew D. NicholsSince Feb 11, 2015

What work does this license cover?

Issued Feb 11, 2015.

Which other San Francisco businesses hold B General Building?

Electrical Contractors in San FranciscoCalifornia electrical contractorsPlumbing Contractors in San FranciscoCalifornia plumbing contractors

What should you check before hiring?

What to ask before you hire

  1. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  2. Check the class covers the job. A license for one trade doesn't cover another. California license classes
  3. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  4. 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.
  5. 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

  1. Don't sign or pay a deposit until the CSLB shows the license active again.
  2. 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.
  3. If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
  4. Check another contractor. California license lookup

Sources

  1. CSLB License Master (cslb.ca.gov, Oct 30, 2026)
  2. Contractors State License Board (CSLB)