COUNTYWIDE MECHANICAL SYSTEMS LLC

California contractor license #1111305 · El Cajon, San Diego County

License

License number
1111305
Status
Clear
Classifications
  • C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor
  • C-36 Plumbing Contractor
Business type
Limited Liability
Issued
Oct 12, 2023
Expires
Oct 31, 2027
Workers' compensation
Workers' Compensation Insurance — Continental Insurance Company (The)
Contractor's bond
$25,000 — Western Surety Company
DIR public works registration
Registered through Jun 30, 2027

From the California Contractors State License Board (CSLB) public license file, last updated Aug 17, 2026. Verify license #1111305 on CSLB's License Check.

California public works

COUNTYWIDE MECHANICAL SYSTEMS LLC appears on 106 public works projects registered with the California Department of Industrial Relations, 25 of them as the prime contractor, for 54 awarding bodies between 2018 and 2026. Projects it led total $1,276,907 in reported contract value.

Most recent public works projects
DateProjectAwarding bodyRoleContract amount
Sep 17, 2026Ductwork replacement @ District OfficeHVAC & mechanicalSouth Bay Union School DistrictPrime$29,980
Aug 18, 2026West City - HVAC CompressorsHVAC & mechanicalSan Diego Community College DistrictPrime$35,000
Aug 3, 2026Quarterly Mechanical Planned MaintenanceHVAC & mechanicalUniversity of California, Irvine Medical CenterPrime$81,714
Jul 30, 2026B21, Quarterly PM on Mechanical SystemsHVAC & mechanicalUniversity of California, Irvine Medical CenterPrime$83,714
Jul 21, 2026Preventative Maintenance for EMS ControlBuildings & facilitiesGrossmont-Cuyamaca Community College District-FacilitiesPrime$24,950
Jul 21, 2026Electric Heat Pump System ReplacementHVAC & mechanicalCity of Del MarPrime$30,995
May 27, 2026HVAC Maintenance ServicesHVAC & mechanicalEast County Advanced Water Joint Powers AuthorityPrime$192,206
Jan 30, 2026West Tower - CU 7 Circuit B Coil ReplaceOtherUC San Diego HealthPrime$74,299
Jan 30, 2026CU 7 Circuit A Coil ReplacementOtherUC San Diego HealthPrime$69,438
Jan 28, 2026Encapsulate Boiler Chemical TreatmentHVAC & mechanicalUC San Diego HealthPrime$21,850
Dec 16, 2025Energy Efficiency ProjectHVAC & mechanicalRipon Unified School DistrictSubcontractor$12,711,550
Dec 16, 2025Energy Efficiency Phase 2Buildings & facilitiesCounty of San Bernardino - Project Management DivisionSubcontractor$61,000,000
Nov 14, 2025LLUMC-Murrieta Additional I/P BedsBuildings & facilitiesLoma Linda University Medical Center-MurrietaSubcontractor$3,591,874
Oct 21, 2025Districtwide Thermostat ReplacementOtherNewark Unified School DirstrictSubcontractor$777,287
Aug 5, 2025CalSHAPE Ventilation Asmnt ImplementatnHVAC & mechanicalNewark Unified School DirstrictSubcontractor$992,621
Aug 5, 2025Thornton Radiology Equipment ReplacementTraffic & signalsUC San DiegoSubcontractor$475,000
Jul 23, 2025Provide & Install 4 Steel Service ValvesOtherUC San Diego HealthSubcontractor$23,410
Jun 17, 2025District Lighting and HVAC UpgradeHVAC & mechanicalLivingston Union School DistrictSubcontractor$5,214,169
Jun 13, 2025Replace Comp 1 on AH4OtherUC San Diego HealthSubcontractor$65,640
Jun 9, 2025Provide 3 Spare 25HP CompressorsOtherUC San Diego HealthSubcontractor$61,056
Jun 6, 2025Replace Compressor 2 on AH2OtherUC San Diego HealthSubcontractor$31,594
Jun 6, 2025Replace Both Compressors on AH3OtherUC San Diego HealthSubcontractor$99,517
May 27, 2025Pomona MPR/Fans, AVElectrical, low voltage & AVNewport-Mesa Unified School DistrictSubcontractor$1,079,596
May 27, 2025Pomona PlaygroundParks, landscape & fieldsNewport-Mesa Unified School DistrictSubcontractor$5,003,512
May 27, 2025Rea - Playgrounds/ShadeParks, landscape & fieldsNewport-Mesa Unified School DistrictSubcontractor$6,186,014

Most recent 25 of 106. Contract amounts are the whole project's, as the awarding body reported them to DIR (reported since July 2024); a role is "Prime" when the awarding body registered the contractor on the project.

Awarding bodies it works for most

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