204 Roundhouse Road
Oneonta, New York 13820
(607) 432-1655  Fax (607) 432-7344


Manufacturing & Industrial Facilities

Graham Lab (Mallinckrodt) Pharmaceutical
Hobart, New York

Pharmtech Packaging Plant

Built in 1992 A. Treffeisen & Sons installed the complete HVAC / Plumbing and electrical system for this pharmaceutical packaging plant.
Home  Hospital & Health Related Services
Retail & Service Facilities
Municipal Facilities
Offices & Financial Institutions
Education & Institutional Facilities
Hotel & Housing Facilities


Additional Manufacturing & Industrial Facilities:


Amphenol Aerospace
Sidney, NY

Sand Bed
Nitric Acid Repipe Project
Disconnect replacement Exhaust System
controls & wiring

Flood Remediation

Lagoon piping

Brewery Ommegang
Cooperstown, NY

Belame Brewery New Plant

Warehouse/Warming Facility

Brooks BBQ

Sauce Plant Facility

Corning Glass
Oneonta, NY

Tool Room Addition
Maintenance Addition
Laboratory Addition

Covidien

Hobart, NY

Bldg. 9 Vault/Warehouse

Pumphouse



Deltown Specialties
Delhi, NY

Production Addition

DMV International

Renovations

Drytown Brewing Co.
Oneonta, NY

Drytown Brewing Plant

Dubois Stables
Downsville, NY

Stables / Office

First Choice Cleaners
Oneonta, NY

Dry Cleaning Plant
Laundromat

Graham Labs (Mallinckrodt)
Hobart, NY

Pharmtech Packaging Plant

Horizons Unlimited
Morris, NY

Stables / Office

IMB
Fishkill, NY

Maintenance Facility

KRAFT Foods
Walton, NY

R.O. Building Addition
Ice Building Addition
Engine Room
Sour Cream Addition
Pinta Project

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 Modification

NYNEX
Oneonta, NY

Chiller Replacement

Otsego Iron & Metal
Oneonta, NY

Fabrication Plant

P & R Truss
Sidney, NY

Addition

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

Wissahickon Spring Water
Harpersfield, NY

Bottling Plant


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