Welkin Mechanical
City-funded organization
Welkin Mechanical is a mechanical contractor based in College Point, NY specializing in heavy mechanical work, process piping, and water/wastewater treatment plant construction, including projects for the NYC Department of Environmental Protection such as the Tallman Island and Hunts Point water pollution control plants. It holds $521.6 million in active NYC contracts as of August 2026 across 2 contracts with DEP, out of $421,775,386 awarded since 2009.
- Industry (per city contracts)
- Construction Services
- City contracts (active)
- $521,617,438 · 3 contracts
- Awarded all-time
- $749,222,327 · 52 since 2009, incl. expired
- Paid to date
- $244,529,460
- Won without a fresh bid
- 1% of contract value · $10,891,248 · 14 contracts
- Based in
- College Point, NY
Holds contracts at
- Department of Environmental Protection City agency
City contracts
Registered city contracts, largest first by current contract value (not amount spent): running now, then registered to start later, then ended. Totals count every registered contract. Each line shows its Checkbook contract ID. The tag on each row is how it was awarded (“no-bid” = non-competitive).
- OH-88: Owls Head WWTP Final Settling System Rehabilitation Department of Environmental Protection · CT182620268808706 $326,448,000
- NR-111: Reconstruction of Tanks North River WPCP Department of Environmental Protection · CT182620268802390 $142,448,000
- TI-168: Headworks Improvements at Tallman Island WPCP Department of Environmental Protection · CT182620248804430 $52,721,438
- RECONSTRUCTION OF DEWATERING CONVEYOR BELT SYSTEM @ VARIOUS Department of Environmental Protection · CT182620131429733 · ended 2017 $23,452,572
- Dechlorination Facilities at North River & Coney Island Department of Environmental Protection · CT182620141424350 · ended 2020 $21,531,948
- Energy conservation at 3 WOH WWTPs, HVAC Department of Environmental Protection · CT182620191413023 · ended 2024 $21,283,800
- JOB ORDER CONTRACT FOR NORTH REGION PLUMBING Department of Environmental Protection · CT182620191420704 · ended 2021 $15,000,000
- RECONSTRUCTION OF PIPING SYSTEM Department of Environmental Protection · CT182620101423449 · ended 2013 $13,708,710
- NORTH RVR INSTALLATION OF THICKENING CENTRIFUGE Department of Environmental Protection · CT182620090027457 · ended 2014 $13,197,120
- Wiggins Type Gas Holder Repair, North River WWTP Department of Environmental Protection · CT182620171421590 · ended 2021 $12,157,188