CONTRACT FOR THE GRISWOLD VALVE REMOVAL PROJECT AT BOSTON CENTER NASHUA, NH. PROJECT IS TO SHUT DOWN AND DRAIN THE BOILER PLANT IN ORDER TO REMOVE TWO FLOW-RESTRICTING GRISWOLD VALVES, INSTALL FLOW MONITORING CAPABILITY, REFILL AND RESTART THE BOILE CORNERSTONE CONSTRUCTION SERVICES, LLC $90,603 FEDERAL AVIATION ADMINISTRATION FEDERAL AVIATION ADMINISTRATION — 238220 Plumbing, Heating, and Air-Conditioning Contractors Y1BC CONSTRUCTION OF RADAR AND NAVIGATIONAL FACILITIES May 6, 2026 Apr 29, 2026 Sep 14, 2026
REPLACEMENT OF THE REPUBLIC AIRPORT (FRG) AIR TRAFFIC CONTROL TOWER (ATCT) HEATING, VENTILATION AND COOLING (HVAC) IN FARMINGDALE, NY. SEE ATTACHED STATEMENT OF WORK (SOW) FOR COMPLETE WORK REQUIREMENTS. CORNERSTONE CONSTRUCTION SERVICES, LLC $954,683 FEDERAL AVIATION ADMINISTRATION FEDERAL AVIATION ADMINISTRATION — 236220 Commercial and Institutional Building Construction Z1BA MAINTENANCE OF AIR TRAFFIC CONTROL TOWERS Apr 24, 2026 Jul 23, 2025 Feb 8, 2033
THE TASK ORDER IS AWARDED TO CORNERSTONE CONSTRUCTION SERVICES IN THE AMOUNT OF $410,672.00. THE PROJECT IS FOR THE RENOVATION OF THE USBC OFFICE SPACE AT THE MCCORMACK FEDERAL BUILDING. CORNERSTONE CONSTRUCTION SERVICES, LLC $410,672 PUBLIC BUILDINGS SERVICE ADMINISTRATIVE OFFICE OF THE US COURTS — 236220 Commercial and Institutional Building Construction Z1AA MAINTENANCE OF OFFICE BUILDINGS Apr 17, 2026 Apr 17, 2026 Oct 16, 2026
SARATOGA NATIONAL PARK - RESTRIPE TRAFFIC AND BIKE LANE CORNERSTONE CONSTRUCTION SERVICES, LLC $49,000 NATIONAL PARK SERVICE NATIONAL PARK SERVICE — 236220 Commercial and Institutional Building Construction Z2LB REPAIR OR ALTERATION OF HIGHWAYS/ROADS/STREETS/BRIDGES/RAILWAYS Apr 10, 2026 Apr 10, 2026 Oct 30, 2026
TROUBLESHOOT AND REPAIR FIRE ALARM SYSTEM AT U.S. COAST GUARD, BASE BOSTON, BOSTON, MA PSN 19818513 CORNERSTONE CONSTRUCTION SERVICES, LLC $2,484,249 US COAST GUARD US COAST GUARD — 238210 Electrical Contractors and Other Wiring Installation Contractors Z2JZ REPAIR OR ALTERATION OF MISCELLANEOUS BUILDINGS Feb 12, 2026 Feb 12, 2026 Oct 20, 2026
REPLACE THE EXISTING FACILITY BACKFLOW PREVENTER AND REPLACE WITH ABOVE GROUND PREVENTER IN A HEATED ENCLOSURE. REPLACE THE FACILITIES MAIN WATER SHUTOFF VALVE. CORNERSTONE CONSTRUCTION SERVICES, LLC $498,857 FEDERAL AVIATION ADMINISTRATION FEDERAL AVIATION ADMINISTRATION — 237110 Water and Sewer Line and Related Structures Construction Y1NE CONSTRUCTION OF WATER SUPPLY FACILITIES Jan 29, 2026 Jan 29, 2026 Jan 30, 2026
631-18-003 CORRECT DEFICIENCY GENERATOR BUILDINGS 4A, 6A, 7A, 8A 12A CORNERSTONE CONSTRUCTION SERVICES, LLC $3,999,000 VETERANS AFFAIRS, DEPARTMENT OF VETERANS AFFAIRS, DEPARTMENT OF — 236220 Commercial and Institutional Building Construction Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Dec 11, 2025 Dec 23, 2025 Jun 26, 2027
PUMP REPLACEMENT AT THE NEW YORK TRACON, WESTBURY, NY CORNERSTONE CONSTRUCTION SERVICES, LLC $1,567,396 FEDERAL AVIATION ADMINISTRATION FEDERAL AVIATION ADMINISTRATION — 238220 Plumbing, Heating, and Air-Conditioning Contractors Y1BC CONSTRUCTION OF RADAR AND NAVIGATIONAL FACILITIES Dec 5, 2025 Dec 5, 2025 Jan 14, 2027
LIGHTING UPGRADE AND CHAMBERS REFRESH ON THE 3RD FLOOR OF THE PROVIDENCE COURTHOUSE IN PROVIDENCE, RI. CORNERSTONE CONSTRUCTION SERVICES, LLC $90,564 PUBLIC BUILDINGS SERVICE ADMINISTRATIVE OFFICE OF THE US COURTS — 236220 Commercial and Institutional Building Construction Z1AA MAINTENANCE OF OFFICE BUILDINGS Oct 31, 2025 Oct 30, 2025 Feb 27, 2026
IN ACCORDANCE WITH THE MACSPO SOW - CAMUS BOILER REPAIR B1604 AMENDED, THIS PROJECT IS INTENDED TO REPAIR AND START THE CAMUS BOILER AT B1604. CORNERSTONE CONSTRUCTION SERVICES, LLC $12,509 DEPT OF THE AIR FORCE DEPT OF THE AIR FORCE — 236220 Commercial and Institutional Building Construction Z2JZ REPAIR OR ALTERATION OF MISCELLANEOUS BUILDINGS Sep 26, 2025 Sep 26, 2025 Nov 10, 2025
631-22-010 B6-REPAIR MASONRY CORNERSTONE CONSTRUCTION SERVICES, LLC $1,710,000 VETERANS AFFAIRS, DEPARTMENT OF VETERANS AFFAIRS, DEPARTMENT OF — 236220 Commercial and Institutional Building Construction Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Sep 18, 2025 Oct 2, 2025 Oct 2, 2026
IN ACCORDANCE WITH THE STATEMENT OF WORK (SOW) DATED 7 DECEMBER 2021, THIS IDIQ IS FOR A BROAD RANGE OF COMMERCIAL SERVICES, SUPPLIES AND MAINTENANCE, REPAIR, ALTERATION, AND MINOR CONSTRUCTION PROJECTS ON REAL PROPERTY. CORNERSTONE CONSTRUCTION SERVICES, LLC $237,386 DEPT OF THE AIR FORCE DEPT OF THE AIR FORCE — 236220 Commercial and Institutional Building Construction J039 MAINT/REPAIR/REBUILD OF EQUIPMENT- MATERIALS HANDLING EQUIPMENT Sep 18, 2025 Sep 18, 2025 Sep 17, 2026
IN ACCORDANCE WITH THE REVISED STATEMENT OF WORK SOW DATED 11 AUGUST 2025, THIS PROJECTS INTENT IS TO ADDRESS LIFE SAFETY CONCERNS AND INSTALL NEW FIRE ALARMS AND CARBON DIOXIDE DETECTING SYSTEMS FOR ELEVEN CABINS AT FOURTH CLIFF. CORNERSTONE CONSTRUCTION SERVICES, LLC $111,661 DEPT OF THE AIR FORCE DEPT OF THE AIR FORCE — 236220 Commercial and Institutional Building Construction Z2JZ REPAIR OR ALTERATION OF MISCELLANEOUS BUILDINGS Sep 15, 2025 Sep 16, 2025 Feb 13, 2026
CONSTRUCTION SERVICES FOR 'FIRE RESTORATION' OF A BRICK BUILDING THAT SUSTAINED FIRE DAMAGE. SERVICES INCLUDE REMEDIATION OF FIRE DAMAGE. CORNERSTONE CONSTRUCTION SERVICES, LLC $323,374 VETERANS AFFAIRS, DEPARTMENT OF VETERANS AFFAIRS, DEPARTMENT OF — 236220 Commercial and Institutional Building Construction Z1DA MAINTENANCE OF HOSPITALS AND INFIRMARIES Jul 25, 2025 Jul 25, 2025 Jan 26, 2026
CONSTRUCTION SERVICES FOR CHILLER PIPING REPLACEMENT, GENERAL SERVICES ADMINISTRATION, JFK FEDERAL BUILDING, BOSTON, MA CORNERSTONE CONSTRUCTION SERVICES, LLC $1,505,996 PUBLIC BUILDINGS SERVICE PUBLIC BUILDINGS SERVICE — 236220 Commercial and Institutional Building Construction Z1AA MAINTENANCE OF OFFICE BUILDINGS Jul 22, 2025 Jul 22, 2025 May 15, 2026
IN ACCORDANCE WITH THE STATEMENT OF WORK (SOW) DATED 12 NOVEMBER 2024, THIS PROJECT IS INTENDED TO INSULATE WATER PIPES CONDENSING OFF AIR HANDLER UNIT NUMBER FOUR (4). CORNERSTONE CONSTRUCTION SERVICES, LLC $111,000 DEPT OF THE AIR FORCE DEPT OF THE AIR FORCE — 236220 Commercial and Institutional Building Construction Z2JZ REPAIR OR ALTERATION OF MISCELLANEOUS BUILDINGS Jul 18, 2025 Jul 18, 2025 Jan 31, 2026
VISN 1 CONSTRUCTION MATOC: TO - FIRE SMOKE DAMPER INVESTIGATION, TOGUS MAINE VA MEDICAL CENTER. CORNERSTONE CONSTRUCTION SERVICES, LLC $87,000 VETERANS AFFAIRS, DEPARTMENT OF VETERANS AFFAIRS, DEPARTMENT OF — 236220 Commercial and Institutional Building Construction Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Jul 9, 2025 Jul 9, 2025 Oct 17, 2025
TO REFURBISH PLAYGROUND AT THE ZBW ARTCC CORNERSTONE CONSTRUCTION SERVICES, LLC $87,431 FEDERAL AVIATION ADMINISTRATION FEDERAL AVIATION ADMINISTRATION — 238330 Flooring Contractors J078 MAINT/REPAIR/REBUILD OF EQUIPMENT- RECREATIONAL AND ATHLETIC EQUIPMENT Jun 12, 2025 Jun 12, 2025 Nov 28, 2025
ZBW CARPET REPLACEMENT CORNERSTONE CONSTRUCTION SERVICES, LLC $299,727 FEDERAL AVIATION ADMINISTRATION FEDERAL AVIATION ADMINISTRATION — 238330 Flooring Contractors Y1BC CONSTRUCTION OF RADAR AND NAVIGATIONAL FACILITIES Jun 12, 2025 Jun 12, 2025 Nov 28, 2025
IN ACCORDANCE WITH THE STATEMENT OF WORK (SOW) DATED, 21 NOVEMBER 2025, THIS PROJECT IS INTENDED TO REMOVE AND DISPOSE OF EXISTING FLOORING AND INSTALL NON-POROUS VINYL COMPOSITION TILE FLOORING WITH VINYL COVE BASE IN BUILDING 1725. CORNERSTONE CONSTRUCTION SERVICES, LLC $12,215 DEPT OF THE AIR FORCE DEPT OF THE AIR FORCE — 236220 Commercial and Institutional Building Construction Z2JZ REPAIR OR ALTERATION OF MISCELLANEOUS BUILDINGS Feb 11, 2025 Feb 11, 2025 Jun 11, 2025
FLAKING PAINT PROJECT AT ZBW CORNERSTONE CONSTRUCTION SERVICES, LLC $16,493 FEDERAL AVIATION ADMINISTRATION FEDERAL AVIATION ADMINISTRATION — 236220 Commercial and Institutional Building Construction J080 MAINT/REPAIR/REBUILD OF EQUIPMENT- BRUSHES, PAINTS, SEALERS, AND ADHESIVES Jan 7, 2025 Jan 7, 2025 Mar 21, 2025
BIL FUNDED REMOVE, DISPOSE, AND REPLACE TWO INCLINE STAIR LIFT AT THE BOSTON ARTCC, NASHUA, NH CORNERSTONE CONSTRUCTION SERVICES, LLC $282,187 FEDERAL AVIATION ADMINISTRATION FEDERAL AVIATION ADMINISTRATION — 238210 Electrical Contractors and Other Wiring Installation Contractors Y1BC CONSTRUCTION OF RADAR AND NAVIGATIONAL FACILITIES Dec 30, 2024 Dec 30, 2024 Apr 30, 2025
ANDOVER IRS EV CHARGING STATION INSTALLATION IN ANDOVER MASSACHUSETTS. CORNERSTONE CONSTRUCTION SERVICES, LLC $219,705 PUBLIC BUILDINGS SERVICE INTERNAL REVENUE SERVICE — 236220 Commercial and Institutional Building Construction Z2AA REPAIR OR ALTERATION OF OFFICE BUILDINGS Dec 16, 2024 Dec 16, 2024 Sep 2, 2025
REMOVE AND REPLACE SEWER LINE B221 CORNERSTONE CONSTRUCTION SERVICES, LLC $205,804 VETERANS AFFAIRS, DEPARTMENT OF VETERANS AFFAIRS, DEPARTMENT OF — 236220 Commercial and Institutional Building Construction Z1NZ MAINTENANCE OF OTHER UTILITIES Dec 5, 2024 Dec 5, 2024 May 30, 2025
SEWAGE PUMPING STATION REPLACEMENT PROJECT AT THE LAND PORT OF ENTRY IN DERBY LINE, VERMONT. CORNERSTONE CONSTRUCTION SERVICES, LLC $146,987 PUBLIC BUILDINGS SERVICE PUBLIC BUILDINGS SERVICE — 236220 Commercial and Institutional Building Construction Z1AA MAINTENANCE OF OFFICE BUILDINGS Sep 11, 2024 Aug 29, 2024 Jun 30, 2025