Door Systems Of Charleston, LLC
North Charleston, SC Doing business as Overhead Door CO. Of Charleston
- UEI
- DMHSH7MV4ME7
- CAGE
- 36QS1
- Primary NAICS
- 238290 Other Building Equipment Contractors
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Partnership or Limited Liability Partnership
- SAM.gov registration date
- Physical address
- 2260 Technical Pkwy, North Charleston, SC 29406, USA
- Website
- overheaddoorcocharleston.com
- Founded
- 1996
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 17 Special Trade Contractors
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $18,475 |
| FY2025 | $17,900 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Transportation | $18,475 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
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About the company
Door Systems Of Charleston, LLC, doing business as Overhead Door CO. Of Charleston, is a for-profit limited liability company based in North Charleston, South Carolina, that provides commercial garage door installation, replacement, and repair services to federal agencies exclusively as a prime contractor under small-business set-asides and full-and-open competition. The vendor has maintained a federal contracting footprint since 2005, operating across 15 awards with a combined potential value of $135 thousand and a current active portfolio that includes a $18,475 firm fixed-price contract awarded by the Federal Aviation Administration on April 8, 2026, to replace an elevator equipment room fire door at the Charleston Air Traffic Control Tower, with a May 15, 2026 completion deadline.
Door Systems of Charleston's customer base fragments across six federal agencies, with the Department of Homeland Security US Coast Guard dominating by dollar value (3 awards, $38 thousand combined potential value), followed by the Department of the Interior Fish and Wildlife Service Region 4 (2 awards, $29 thousand) and smaller single-award relationships with the FAA Southwestern Region, the Department of Justice Bureau of Prisons Federal Correctional Institution Jesup, and the Department of the Navy Information Warfare Systems Command. By award count, the Navy holds five awards but carries the lowest dollar share at $16 thousand combined potential value, indicating a pattern of frequent small-dollar purchase orders. The top five customers account for 80% of recent awards and 88% of combined potential value, reflecting highly fragmented customer concentration typical of small-dollar facilities maintenance work.
Activity has been episodic: two awards in 2018, two in 2020, one in 2021, dormancy from 2022 to 2024, and reactivation in 2025 and 2026. The vendor competes entirely on small-business set-asides and full-and-open vehicles, with recent awards split between total small business set-asides (FAA elevator door project) and unrestricted competition (Federal Correctional Institution rollup door purchase order and Coast Guard precedent work). Primary NAICS classification runs to 232450 (Other Building Equipment Contractors), with secondary activity in industrial and institutional building construction. The vendor operates with a small footprint — no federal IDIQs, GWACs, or BPAs — and places all work on individual purchase orders and definitive contracts issued directly by customer agencies.
Quick answers
Is Door Systems Of Charleston, LLC registered in SAM.gov?
Yes. Door Systems Of Charleston, LLC's SAM.gov registration is active through October 23, 2027.
What is Door Systems Of Charleston, LLC's CAGE code?
Door Systems Of Charleston, LLC's CAGE code is 36QS1, and its Unique Entity ID (UEI) is DMHSH7MV4ME7.
How much has Door Systems Of Charleston, LLC received in federal contracts?
Federal contracts obligated $17,900 to Door Systems Of Charleston, LLC in fiscal year 2025 and $36,375 in fiscal years 2023 through 2027.
What is Door Systems Of Charleston, LLC's most recent federal award?
Door Systems Of Charleston, LLC's most recent federal contract award is Elevator equipment room fire door replacement project (697DCK26C00091), from Southwestern Region (FAA), on April 8, 2026.
On GovTribe
See Door Systems Of Charleston, LLC's full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors