About Enterprise Roofing Service

enterprise_crewSince we opened our doors in 1962, Enterprise Roofing Service has worked diligently to rise to the top of Northern California’s commercial and industrial roofing and waterproofing industry.

Over the years, Enterprise Roofing Service has installed thousands of roofs, encountering almost every conceivable roofing challenge. From the intricate high-tech roofs at Diablo Canyon Nuclear Power Plant, to the acres of built-up roofing at Sun Valley and Stoneridge Malls, we can do it all.

Our rock-solid reputation and longevity are a result of hard work and commitment to customer satisfaction. As a licensed, fully insured, professional roofing and waterproofing contractor, we get the job done on time, and we guarantee our work.

We have the experience and versatility you need. Enterprise Roofing Service is your full-service, single-source company for re-roofing and new construction roofing & waterproofing. We are the experts in cold and hot-applied built-up roofing, single-ply roofing, and all types of waterproofing, including patio deck coatings, podium deck, below-grade, air barrier, and blind-side applications. We are also certified applicators of clay and concrete tile, wood shake and shingle, and composition shingle roofing.


Company Information

Business & Financial Information

  • Incorporated: April 4th, 1963
  • State of Incorporation: California
  • California Contractor’s License: #221274; classifications C-39, C-43, B, ASB, C20
  • Nevada Contractor’s License: #12052; Class C-15 (No Limit)
  • Oregon Contractor’s License: #185389
  • S.I.C. Codes: 1761, 1522, 1541, 1542
  • Federal Tax I.D. 94-1551712
  • D&B No. 02-806-7338, Rating – Excellent
  • *MBE certified (Supplier Clearinghouse)


  • General Liability, Excess Liability, and Worker’s Compensation
  • Broker: Gallagher Construction Services (Arthur J. Gallagher Risk Management Services, Inc.)
  • Address: 3697 Mt. Diablo Blvd.; Lafayette, CA 94549
  • Telephone: (925) 832-8000
  • Contact: Allen Brooks


  • Carrier: Continental Casualty Company (a CNA Surety)
  • Broker: Andreini & Company
  • Bonding Capacity: $30 million (aggregate), $10 million (single job)
  • Address: 2603 Camino Ramon, Suite #200
  • Telephone: (925) 242-2377
  • Contact: Steve Passerine

Union Affiliations

  • International Union of Roofers, Waterproofers & Allied Workers: Locals #81, #40, and #95

Public Works Registration #

  • #1000000444

Professional Memberships and Affiliations

Operations Team

Lawrence T. Reardon



Mike O’Bryant

Estimator/Project Manager

Alan Matthews

Project Manager

Steve Reardon



Alex Sarmiento

Assistant Service Manager


Scott Lynd

Vice President


Chris Gonzalez

Estimator/Project Manager


Ken Nakao

Estimator/Project Manager


Armando Garcia Jr.

Service Manager


Production Team

Armando Garcia


Administrative Team

Wendy Hite

Administrative Assistant


Aubrey Shehorn

Vice President/Treasurer


Vicki Shehorn

Payroll Administrator


Mike Reardon

Corporate Secretary