4 S Air INC (CSLB #931194)
CSLB #931194
Rancho Cucamonga, CA · (909) 576-6586
License status
Active
Expires April 30, 2027 · Issued 2009
Expires April 30, 2027Issued April 14, 2009
BondContractor bond
$25,000
American Contractors Indemnity Co.
Workers' comp
On filePolicy on file
State Compensation Ins. Fund · to May 20, 2027State Compensation Ins. Fund Runs to May 20, 2027
ClassesClassifications
C-20 Warm-air heating, ventilating and air-conditioning
FROM THE CSLB FILE DATED NOV 6, 2026
Status can change the same day. We don't approve contractors; this is the state's public file.
Check this license at CSLB ↗CSLB file dated NOV 6, 2026 · Status can change the same day · Check at CSLB ↗
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Shelby Lynn Loster
Role: Officer
–
Spencer Loster
Role: Responsible managing officer, chief executive officer, president
Qualifies: C-20
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The full record
- Business address
- 9997 LANGSTON STREET, Rancho Cucamonga, CA 91730
- Phone
- (909) 576-6586
- Bond
- American Contractors Indemnity Company · $25,000
- Workers' comp
- State Compensation Insurance Fund · policy 9401845 · May 20, 2026 to May 20, 2027
About this license
4 S Air INC of Rancho Cucamonga, CA holds California contractor license #931194 in C-20 — Warm-air heating, ventilating and air-conditioning. The business phone on the license is (909) 576-6586. The license was issued April 14, 2009 and expires April 30, 2027, and the CSLB file lists it as active. Its contractor bond of $25,000 is with American Contractors Indemnity Company. Workers' compensation is with State Compensation Insurance Fund, policy dates May 20, 2026 – May 20, 2027. People on the license include Shelby Lynn Loster (Officer) and Spencer Loster (Responsible Managing Officer/Chief Executive Officer/President).