H & H Mechanical Corporation
Austell, GA
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- SAM.gov registration date
- Physical address
- 3270 Humphries Hill Rd, Austell, GA 30106, USA
- Website
- hhmec.com
- Founded
- 1983
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 76 Miscellaneous Repair Services
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 | $11,745 |
| FY2025 | $32,640 |
| FY2024 | $49,091 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Interior | $11,745 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Central Heating & Cooling Inc. | Mountain Home, AR | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
| Equitech LLC | Carolina, Carolina | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
| Elite Mechanical Services LLC | Lacey, WA | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
| D And D Mechanical | Kerrville, TX | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
| Perdido Heating And Air Conditioning | Pensacola, FL | 238220 Plumbing, Heating, and Air-Conditioning Contractors |
About the company
H & H Mechanical Corporation, a Georgia-based small business, provides HVAC maintenance, repair, replacement, and equipment rental services to the National Park Service as a prime contractor under Total Small Business set-asides. The company operates exclusively in the heating, ventilation, and air-conditioning trade (NAICS 238220, Plumbing, Heating, and Air-Conditioning Contractors) and has received eight purchase orders from the NPS Southeast Region totaling $127 thousand in combined potential value since October 2021.
All eight awards originate from a single customer agency — the Department of the Interior's National Park Service Southeast Region — which accounts for 100% of H & H Mechanical's recent federal footprint. The work spans facility maintenance and energy-efficiency upgrades across multiple park properties in the Southeast, anchored by repeated HVAC contracts at Kennesaw Mountain National Battlefield Park. Representative awards include a $28,895 purchase order (December 2024, ultimate completion June 2025) for boiler unit rental, removal of an existing 500K BTU boiler, and plumbing work at a visitor center in Luther, Iowa; a $52,836 Total Small Business set-aside purchase order (March 2024, completed April 2025) for commissioning, inspection, preventive maintenance, and repair services across multiple NPS buildings; a $13,879 repair and maintenance contract at Martin Luther King Jr. National Historic Site (April 2022); and a recent $8,141 purchase order (August 2026) to replace a mini split HVAC system in curatorial storage at Kennesaw Mountain, completing in October 2026.
Activity has remained flat, with two awards per year in 2021 and 2022, a gap in 2023, and two awards each in 2024 and 2026. One award (the $8,141 Kennesaw curatorial storage replacement) reaches ultimate completion within the next twenty-four months. H & H Mechanical does not hold seats on government-wide IDIQs, GWACs, or BPAs; all work is placed as direct purchase orders. The vendor operates as a 100% prime contractor with no subcontract exposure in the source data. Award sizes cluster in the low tens of thousands of dollars, reflecting the tactical, facility-level scope of NPS maintenance work.
Quick answers
Is H & H Mechanical Corporation registered in SAM.gov?
Yes. H & H Mechanical Corporation's SAM.gov registration is active through October 7, 2027.
What is H & H Mechanical Corporation's CAGE code?
H & H Mechanical Corporation's CAGE code is 6FZ91, and its Unique Entity ID (UEI) is CTPMU2R4J634.
How much has H & H Mechanical Corporation received in federal contracts?
Federal contracts obligated $32,640 to H & H Mechanical Corporation in fiscal year 2025 and $93,476 in fiscal years 2023 through 2027.
How does H & H Mechanical Corporation rank among federal contractors?
H & H Mechanical Corporation ranked #42 in PSC W045 in FY2025.
What is H & H Mechanical Corporation's most recent federal award?
H & H Mechanical Corporation's most recent federal contract award is EO 14398, replace mini split HVAC system in curatorial storage (R9), kennesaw mountain national battlefield park… (140P5126P0081), from Southeast Region (NPS), on August 19, 2026.
On GovTribe
See H & H Mechanical Corporation's full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors