California contractor license
GRELLA MICHAEL JEFFREY
- C20 Warm-Air Heating, Ventilating And Air-Conditioning
- C38 Refrigeration
GRELLA MICHAEL JEFFREY is a C20 Warm-Air Heating, Ventilating And Air-Conditioning and C38 Refrigeration contractor in Sylmar, Los Angeles County, licensed in California for 32 years (since 1994). As of Aug 31, 2026, the license is active with an expiration date of Aug 31, 2027 on record and a license bond is on file.
GRELLA MICHAEL JEFFREYC20 Warm-Air Heating, Ventilating And Air-Conditioning · C38 Refrigeration · checked Aug 31, 2026
ActiveLicense number#689942
Licensed sinceJun 8, 1994
Years licensed32 years
Expiration on recordAug 31, 2027
City and countySylmar, Los Angeles County
License bondOn file
ProjectsNone on file
Full record
Insurance, workers' comp, violations and permits.
Workers' comp, insurance policies, violations and full permit historyFree with your email. Shown on this page after you unlock.
LockedWorkers' compUnlock to view
Insurance policiesUnlock to view
Violations, complaints and disciplinary actionsUnlock to view
Full permit historyUnlock to view
5 free unlocks left today
Is this your business? Claim it free.
Claim your free profile to help keep your business details accurate. We'll verify you first.
Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated Aug 31, 2026.