John C. Grimberg Co., Inc.

Manassas, Virginia 20110
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Our Story

A family-owned and operated company, the John C. Grimberg Co. has served the Mid-Atlantic region providing complete general and mechanical contractor services to federal, state, and private offices since its founding in 1951.

One of the largest mechanical contractors in the Washington, DC area with a proven record with high profile clients and projects.

We have a management team to perform takeover projects for bonding agencies. Our management has the capability to perform Indefinite Quantity (IDIQ) contacts (Grimberg has extensive IDIQ contract experience with the Navy, FBI, GSA, NIH, National Gallery of Art, DC Air National Guard, and Architect of the Capitol).

What We Do

Products and Services

Blue Book Network Classifications

We can be found under the following Blue Book Network Classifications.

CSI Codes

Our standard scope of services includes the following CSI Master Format™ code(s).
01 35 16 - Alteration Project Procedures

Commercial Construction Project Specializations

Hospital / Nursing Home
Manufacturing Plant
Non-Building Construction
Office Building
Power Generation & Distribution
Storage Facility / Warehouse

Company Information

Year Established:
Labor Affiliation:
Not Provided Request
Annual Volume:
LEED Experience:
Company Size:
100-249 Employees
Service Sector:
Not Provided Request
Typical Project Size:
Not Provided Request
Project Types:
Not Provided Request

Associations & Memberships

Steamfitters & Pipefitters Union

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