From mechanical systems to civil improvements, we bring multi-trade capability under a single prime contract — simplifying coordination and accountability for federal agencies.
New construction, additions, interior build-outs, and full-scale renovation projects executed to federal specifications with rigorous quality control, submittals, and documentation from mobilization through closeout.
Design, procurement, installation, and commissioning of HVAC systems, chiller plants, boilers, and mechanical equipment in occupied and unoccupied federal facilities — with full controls integration and startup documentation.
Road milling, full-depth reclamation, HMA paving, concrete flatwork, base repair, drainage improvements, and pavement marking on military installations, federal campuses, and government-owned properties.
Interior and exterior upgrades including roofing systems, building envelope improvements, window and door replacement, accessibility modifications (ADA), and energy efficiency retrofits for aging federal infrastructure.
Electrical distribution, lighting upgrades, panel replacements, generator systems, and utility infrastructure improvements performed by qualified electricians working to federal specifications and safety standards.
End-to-end federal project documentation management including RFIs, submittals, daily reports, as-built drawings, O&M manuals, and complete closeout packages that meet all agency and contracting officer requirements.
Every GCS project follows a structured process designed for the specific demands of federal contracting.
Pre-project orientation, subcontractor onboarding, site safety plan, submittal schedule, and coordination with the Contracting Officer's Representative.
Daily on-site supervision, quality control inspections, progress tracking, and proactive communication with the government point of contact.
All work inspected against spec before government walkthrough. Non-conformances addressed immediately. Zero punch list surprises at substantial completion.
Complete closeout package delivered promptly — as-builts, O&M manuals, warranties, and all required documentation — so agencies can close their contracts on schedule.
Tell us about your project and we'll get back to you within one business day. No project is too large or too remote — we're built for this work.