(607) 432-1655


Manufacturing & Industrial Plumbing, HVAC and Electrical Contracting

Feature Project

Oneonta NY
New Ultra Capacity, Manufacture Facility

Built in 2011 A. Treffeisen & Sons installed the complete HVAC / Plumbing and electrical system for this new ultra capacity manufacturing facility. This company is continuously growing and A. Treffeisen & Sons has done several additional expansions

Additional Manufacturing & Industiral Facilities

Amphenol Aerospace – Sidney, NY
Sand Bed
Nitric Acid Repipe Project
Disconnect replacement exhaust system controls & wiring.
Flood Remediation
Lagoon Piping
Chiller Upgrades

Brewery Ommegang – Cooperstown, NY
Belame Brewery New Plant
Warehouse/Warming Facility

Brooks BBQ, Oneonta, NY
Sauce Plant Facility
Steam Boiler
BBQ Plant

Corning Glass – Oneonta, NY
Tool Room Addition
Maintenance Addition
Laboratory Addition

Covidian – Hobart, NY
Bldg. 9 Vault/Warehouse

CSW – Norwich, NY

Deltown Specialties – Delhi, NY
Production Addition

DMV International – Delhi, NY

Drytown Brewing Co. – Oneonta, NY
Drytown Brewing Plant

Dubois Stables – Downsville, NY
Stables / Office

First Choice Cleaners – Oneotna, NY
Dry Cleaning Plant

Friesland Campina – Frasier, NY

Graham Labs (Mallinckrodt)- Hobart, NY)
Pharmtech Packaging Plant

Horizons Unlimited – Morris, NY
Stables / Office

IBM – Fishkill, NY
Maintenance Facility

Ioxus – Oneonta, NY
New Facility
2012 Expansion
2013 Expansion

2014 Building 2

KRAFT Foods – Walton, NY
R.O. Building Addition
Ice Building Addition
Engine Room
Sour Cream Addition
Pinta Project
Wash Sinks

Karabinis Warehouse – Oneonta, NY
New Facility
50 Ton A/C Addition

Mallincrodt Pharmaceutical – Hobart, NY
Oral Dosage Liquid Line Project
Building 12 Warehouse
Building 12 Ventilation
Building Phase 1 Renovations
Kitchen Renovations
Pan Coater Project
Building 12C Production Room
Building 1 Nurses Station
Building 1 – Tait

Natural Mountain Spring Water – Harpersfield, NY
Bottling Plant

New York State Power Authority – Blenheim, NY
Control Room Renovation
HVAC Modifiction

NYNEX – Oneonta, NY
Chiller Replacement

Otsego Iron & Metal – Oneonta, NY
Fabrication Plant

P&R Truss – Sidney, NY

Paraco Gas – Cooperstown, NY
Fuel Island

Perry Buildings – Bainbridge, NY
Kiln Addition

Quality Hardwoods – Sidney NY
Process Boiler

SANYO Sewing America – Oneonta, NY
Loading Dock Addition
Warehouse Renovation
Production Renovation

Sportsedge – Delhi, NY
Manufacturing Plant
Addition – Phase 1 & Phase 2

Unison Industries – Norwich, NY
2000 AMP R+O HV Service

Wassahickson Spring Water – Harpersfield, NY
Bottling Plant