
Mechanical & Piping
Steam piping, condensate piping, hydronic systems, plumbing, mechanical equipment, and associated infrastructure.
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Eighty-Nine Enterprises, LLC
A Service-Disabled Veteran-Owned Small Business specializing in government construction — providing construction, mechanical, piping, excavation, and infrastructure services for government, institutional, and commercial clients.
Government construction
Eighty-Nine Enterprises, LLC specializes in government construction and is proud to be a Service-Disabled Veteran-Owned Small Business (SDVOSB). We provide construction, mechanical, piping, excavation, underground utility, and facility improvement services for government and institutional facilities.
Our team understands the demands of working in active government facilities, including strict safety requirements, project documentation, submittals, RFIs, quality control, scheduling, shutdown coordination, and communication with contracting officers, CORs, engineers, and facility personnel.
Who we are
Eighty-Nine Enterprises is committed to completing challenging construction projects safely, efficiently, and professionally. We plan the work, staff it with experienced people, and stay accountable from mobilization through closeout.

What we do
Self-performed field work and coordinated trade management across mechanical, underground, and general construction scopes.

Steam piping, condensate piping, hydronic systems, plumbing, mechanical equipment, and associated infrastructure.
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Underground piping, utility installation, excavation, trenching, backfill, and restoration.
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Construction, renovation, repairs, demolition, concrete, site work, and facility improvements.
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Construction and infrastructure services for federal, state, and local government facilities.
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Excavation, trenching, utility installation, manholes, concrete structures, grading, and restoration.
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Mechanical upgrades, piping replacements, equipment replacement, structural repairs, and facility improvements.
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Owners, engineers, and facility teams need a contractor who shows up prepared and finishes the work.
Safety is incorporated into planning and execution from the beginning of every project.
Projects are managed by experienced construction professionals who understand field conditions and project requirements.
We focus on completing work correctly while meeting plans, specifications, and applicable codes.
We coordinate manpower, materials, subcontractors, shutdowns, inspections, and project milestones to keep work moving.
Complex construction projects require practical field solutions. We work collaboratively with owners, engineers, subcontractors, and facility personnel to solve problems.
Service area
Eighty-Nine Enterprises, LLC (89 Enterprises) provides commercial, industrial, and government contracting services throughout the Mid-Atlantic region. We are experienced in performing work on active government and commercial facilities and are available to pursue projects throughout these four states.
As a Service-Disabled Veteran-Owned Small Business (SDVOSB), 89 Enterprises specializes in government contracting.
Primary service area
Project experience
Federal and VA construction experience across mechanical, steam, chilled water, and underground utility infrastructure.

Martinsburg, West Virginia
Major steam and condensate infrastructure project involving underground pre-insulated piping, utility excavation, manholes/vaults, tunnel piping, shutdown coordination, equipment connections, concrete restoration, and work within an active VA medical campus.
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Martinsburg, West Virginia
Chilled water infrastructure upgrade performed for the Department of Veterans Affairs at the Martinsburg VA Medical Center.
View projectHave a project in Maryland, Virginia, West Virginia, or Pennsylvania? Contact 89 Enterprises to discuss your upcoming construction needs.
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Safety
89 Enterprises takes a proactive approach to construction safety through planning, employee training, daily coordination, hazard analysis, inspections, and field supervision. Safety requirements are built into how the work is sequenced, not added afterward.
Experience managing work involving
Federal contractor
Eighty-Nine Enterprises, LLC is an experienced government contractor serving federal, commercial, and institutional clients throughout the Mid-Atlantic region.
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Whether you need mechanical construction, underground utilities, facility improvements, excavation, or general construction services, contact Eighty-Nine Enterprises to discuss your project.