C202059 - REPURPOSE OF AIR HANDLER UNIT, BUILDING 12B CHAPPELLE MECHANICAL SERVICES LLC $298,915 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES May 28, 2026 May 28, 2026 Nov 15, 2026
NIH CRC STEAM SYSTEM REPAIRS & UPGRADES, BUILDING 10-65 CHAPPELLE MECHANICAL SERVICES LLC $277,791 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES May 22, 2026 May 22, 2026 Sep 30, 2026
NIH CRC STEAM SYSTEM REPAIRS & UPGRADES, BUILDING 10-33 CHAPPELLE MECHANICAL SERVICES LLC $231,457 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES May 19, 2026 May 19, 2026 Jun 30, 2026
INSTALLATION OF TWO DUCTED DIFFUSERS WITH DAMPERS CHAPPELLE MECHANICAL SERVICES LLC $68,643 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES May 12, 2026 May 6, 2026 Sep 25, 2026
C201969 - DRAIN PIPE LEAK REPAIR, BUILDING 14B CHAPPELLE MECHANICAL SERVICES LLC $29,137 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Apr 27, 2026 Apr 28, 2026 Jun 30, 2026
C202098 - LAB 3E41 AHU-16 AHU REPLACEMENT, BUILDING 13 CHAPPELLE MECHANICAL SERVICES LLC $108,850 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Apr 22, 2026 Apr 15, 2026 Aug 15, 2026
C201982 - SEWAGE EJECTOR PUMP REPLACEMENT, BUILDING 35 CHAPPELLE MECHANICAL SERVICES LLC $42,516 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Apr 15, 2026 Apr 15, 2026 Jul 15, 2026
C201831 - REPLACE CHILLED WATER COILS, BUILDING 14B CHAPPELLE MECHANICAL SERVICES LLC $88,788 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Apr 15, 2026 Apr 15, 2026 Aug 15, 2026
REPAIR REHEAT SYSTEM, B1N264, BUILDING 10 CHAPPELLE MECHANICAL SERVICES LLC $57,452 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Mar 31, 2026 Apr 1, 2026 May 1, 2026
REPLACE AND SERVICE VFD UNITS CHAPPELLE MECHANICAL SERVICES LLC $71,669 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Mar 26, 2026 Mar 25, 2026 Aug 10, 2026
C201488 ANIMAL CAGE WASH INSTALLATION IN BASEMENT ROOM 111, BUILDING 8 CHAPPELLE MECHANICAL SERVICES LLC $100,520 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Feb 27, 2026 Mar 2, 2026 Jul 31, 2026
REPLACE AND SERVICE FAN COIL UNITS CHAPPELLE MECHANICAL SERVICES LLC $64,500 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Feb 24, 2026 Feb 23, 2026 Jul 27, 2026
M32868461 CHILLED WATER PIPE REPLACEMENT FOR BUILDING 1. CHAPPELLE MECHANICAL SERVICES LLC $23,888 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Jan 28, 2026 Jan 27, 2026 Apr 21, 2026
C201716 - EMERGENCY REPAIRS FOR THE CENTRAL UTILITY PLANT CHAPPELLE MECHANICAL SERVICES LLC $150,000 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Dec 9, 2025 Dec 9, 2025 Mar 31, 2026
C201628 - BUILDING 82 CHILLER REPAIRS CHAPPELLE MECHANICAL SERVICES LLC $22,400 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Oct 30, 2025 Oct 30, 2025 Feb 28, 2026
REPAIR AND SERVICE 7 DEHUMIDIFIER SYSTEMS, BUILDING 38 CHAPPELLE MECHANICAL SERVICES LLC $510,366 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Sep 4, 2025 Sep 4, 2025 Aug 15, 2026
M32030438 - WELDING OF HOT WATER PIPE, BUILDING 10 M31734832 - PREHEAT WATER LINE REPAIR, BUILDING 10 COR: RICCARDO MISTICHELLI CHAPPELLE MECHANICAL SERVICES LLC $48,104 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Jun 12, 2025 Jun 14, 2025 Sep 14, 2025
M31096814 BLDG. 13 RM. STAIR B1.1 PUMP SEAL REPLACEMENT - TRANISHA FISHER CHAPPELLE MECHANICAL SERVICES LLC $18,689 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Jun 6, 2025 Jun 11, 2025 Aug 11, 2025
VALVE REPLACEMENT CHAPPELLE MECHANICAL SERVICES LLC $21,633 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES May 23, 2025 May 22, 2025 Jul 22, 2025
C201224 - REPLACE CAGE WASH HOT WATER HEATER, BLDG 30, MIKE WERNER REQ#: COR: JIN KANG CHAPPELLE MECHANICAL SERVICES LLC $74,800 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES May 13, 2025 May 13, 2025 Aug 21, 2025
C201245 - THE CONTRACTOR SHALL PROVIDE LABOR AND MATERIALS TO REPLACE THE CRACKED CHILLED WATER COIL INSIDE AIR HANDLER UNIT #1 (AHU1) CHAPPELLE MECHANICAL SERVICES LLC $30,935 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES May 12, 2025 May 12, 2025 Jul 11, 2025
M31879660-THE EXISTING EXPANSION/AIR SEPARATOR HAS FAILED AND IN NEED OF REPLACEMENT - REQ#: 7189895 COR: RICHARD PHILLIPS CHAPPELLE MECHANICAL SERVICES LLC $13,980 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES May 2, 2025 May 5, 2025 Jun 5, 2025
M31709017 -REPAIR AHU 2-1 COR: RICHARD PHILLIPS CHAPPELLE MECHANICAL SERVICES LLC $16,212 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Apr 15, 2025 Apr 16, 2025 May 16, 2025
M30787934- CHILL WATER PUMP/VALVE REPLACEMENT COR: DERRICK BATTLE CHAPPELLE MECHANICAL SERVICES LLC $49,938 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Apr 10, 2025 Apr 10, 2025 Jun 11, 2025
THE CONTRACTOR SHALL PROVIDE ABSL-3 SURVEY & REPAIRS FOR NEXT ANNUAL HVAC AND FACILITY VERIFICATION - MAKE NECESSARY REPAIRS TO AHU-9 TO SUPPORT RESEARCH ACTIVITIES IN THE ABSL-3 SUITE IN BLDG. 50. CHAPPELLE MECHANICAL SERVICES LLC $278,422 NATIONAL INSTITUTES OF HEALTH NATIONAL INSTITUTES OF HEALTH — 238220 Plumbing, Heating, and Air-Conditioning Contractors Z2DA REPAIR OR ALTERATION OF HOSPITALS AND INFIRMARIES Apr 8, 2025 Apr 2, 2025 Oct 31, 2025