San Lorenzo Unified School District

338 public works projects registered with the California Department of Industrial Relations, 2012–2025 · San Lorenzo, Alameda County. Reported contract value: $2,493,875.

Projects by year

YearProjectsReported contract value
202526$1,490,153
202430$973,722
202324—
202228—
202120—
202018—
201918—
201840—
201761—
201646—
201514—
20141—
20121—

DIR has published contract amounts since July 2024; earlier years count projects only.

Types of work

  • Buildings & facilities · 82
  • Other · 74
  • Parks, landscape & fields · 40
  • Painting & flooring · 32
  • Paving & streets · 29
  • Roofing · 18
  • HVAC & mechanical · 15
  • Electrical, low voltage & AV · 15
  • Solar, EV & energy · 9
  • Traffic & signals · 6
  • Design, inspection & consulting · 5
  • Water · 4

Inferred by Atriam from each project's name and description, not reported by the agency.

Contractors it awards most

Prime contractorProjectsReported contract value
ALL COUNTY FLOORING8$206,037
B T MANCINI CO INC4$159,540
CATO'S PAVING4$146,687
TSE CONSTRUCTION2$77,982
MBS ENGINEERING, INC.2$73,000
LOS LOZA INC2$50,900
DAVE BANG ASSOCIATES INCORPORATED OF CALIFORNIA1$139,946
OPENING TECHNOLOGIES INC1$71,915
COMTEL SYSTEMS TECHNOLOGY, INC1$52,806
ATR Ventures1$50,400
COPELAND MECHANICAL INC1$48,500
BEST CONTRACTING SERVICES INC1$29,437
ENGIE1$20,020
GRAHAM CONTRACTORS INC1$18,775
FIELDTURF USA, INC.1$9,300

Latest projects

DateProjectPrime contractorContract amount
Nov 5, 2025Advanced Tile Restoration-SLZ KitchenPainting & flooringATR Ventures$50,400
Oct 22, 2025Opterra Energy_Solar InstallSolar, EV & energy—$144,629
Oct 22, 2025B-Line_AHS,SLZ_ScoreboardsBuildings & facilities—$72,036
Oct 22, 2025Opening Technologies_BAYBuildings & facilitiesOPENING TECHNOLOGIES INC$71,915
Oct 8, 2025Comtel _ KIPPBuildings & facilitiesCOMTEL SYSTEMS TECHNOLOGY, INC$52,806
Oct 1, 2025Opterra Energy Service AgreementSolar, EV & energy—$400,195
Jul 1, 2025Los LozaFire & life safetyLOS LOZA INC$29,500
Jul 1, 2025R26-00284Water—$33,276
Jul 1, 2025All County Flooring - BMSPainting & flooringALL COUNTY FLOORING$16,436
Jul 1, 2025Los Loza_ AHS, SLZParks, landscape & fieldsLOS LOZA INC$21,400
Jul 1, 2025Martell Water Systems_SLZWater—$33,276
Jul 1, 2025R.F Mac Donald _AHSHVAC & mechanical—$22,091
Jul 1, 2025All County Flooring - ROYPainting & flooringALL COUNTY FLOORING$39,051
Jun 26, 2025RMA Grou p - WMS Charging StationsDesign, inspection & consulting—$13,228
Jun 25, 2025RMA Group - BAY Charging StationsDesign, inspection & consulting—$13,228
Jun 18, 2025All County Flooring_ROY_FRCPainting & flooringALL COUNTY FLOORING$39,051
Jun 1, 2025All Country Flooring _ AHSPainting & flooringALL COUNTY FLOORING$42,212
May 20, 2025B-Line_SLZ_ JVTraffic & signals—$59,997
May 20, 2025B-Line_SLZ_SoftballTraffic & signals—$54,482
May 20, 2025B.T. Mancini SLZBuildings & facilitiesB T MANCINI CO INC$58,295
May 20, 2025B.T Mancini Co., Inc. for Arroyo High ScBuildings & facilitiesB T MANCINI CO INC$58,245
May 20, 2025B-Line_SLZ_VarsityTraffic & signals—$59,160
Apr 3, 2025Copeland Mechanical_ArroyoHVAC & mechanicalCOPELAND MECHANICAL INC$48,500
Mar 5, 2025All County Flooring - Bus. ServicesPainting & flooringALL COUNTY FLOORING$20,182
Jan 29, 2025Arroyo High School 1-25Buildings & facilities—$7,125

Source: California Department of Industrial Relations public works project registrations (PWC-100), updated daily by Atriam.