Contact Us:
A. Treffeisen & Son, LLC
204 Roundhouse Road
Oneonta, New York 13820
Phone: (607) 432-1655
Fax (607) 432-7344
Member of:
Featured Project
A. Treffeisen & Son, LLC
Educational & Institutional Plumbing, HVAC and Electrical Contracting
Featured Project:
Oneonta Boys & Girls Club
Oneonta, NY
Built in 1998, this project included a new girls wing, gym with aerobics and locker rooms. Also included in this project was the renovations of the existing boys gym, boys locker rooms and offices. A. Treffeisen and Sons also installded a new heating plant and preformed all the plumbing and electrical.
Additional Educational & Institutional Facilities:
Andes School - Andes, NY
Modular addition/renovations
Alliance Church - Sidney, NY
Bainbridge-Guilford Central School - Bainbridge, NY
Vo-Tech Building
Broome Developmental - W. Street Hostel, Oneonta, NY
Electric Service Entrance
HVAC Renovations
Catskill Rec. Center - Arkville, NY
New Facility
Charlotte Valley Central School - Davenport, NY
Classroom / Auditorium Additions
Home Eco. Renovations
Chenango County Center of the Act - Norwich, NY
HVAC System
Cobleskill Richmondville CSD - Cobleskill, NY
Renovations
Cobleskill Methodist Church - Cobleskill, NY
HVAC Renovations
Delhi Central School - Delhi, NY
Boiler Replacement
Bus Garage Addition/Renovations
DCMO BOCES - Norwich, NY
2002 Capital Improvements
Renovations Project
Foothills Performing Arts - Oneonta, NY
Addition
2nd Floor
Franklin Central School - Franklin, NY
Oil Tank Replacement
Fuel Island
Bus Garage Reconstruction
1998 Capital Improvements
Glimmerglass Opera - Cooperstown, NY
Administration Building
Grand Gorge BOCES - Grand Gorge, NY
Boiler Replacement
GMU - Gilbertsville, NY
LED Light
Hartwick College - Oneonta, NY
Lietzell Hall Renovations
Fitness Center Renovations
Town House Renovations
Binder Gym Renovations
Fitness Center
Middleburgh Central School - Middleburgh, NY
Science Classrooms
Milford BOCES - Milford, NY
Addition/Renovations
Roof Drain Replacement
Electric Upgrades
National Baseball Hall of Fame - Cooperstown, NY
Phase I
Phase II
Babe Ruth Room
Snow Melt System
Masonville CSD - MasonVille, NY
Renovations
National Soccer Hall of Fame - Oneonta, NY
Service Entrance
Ford Ave. Renovation
NYS Dept. of Environmental Conservation
Swart-Wilcox Museum, Oneonta, NY
Belleayre Mtn. Ski Center Com presserer
Cooler
Belleayre Mtn. Ski Center Air Cooler
Belleayre Mtn. Ski Center Lodge HVAC Reno.
Beaverkill Campground Bathhouse
Fishcreek Campground Bathhouse
Gilbert Lake State Park Restrooms
Happy Valley Campground Bathouhouse
Littlepond Campground Bathhouse
Limekil Campground Bathhouse
Mongaup Pond Campground Bathhouse
Northville Hdgt HVAC Modifacations
Roger's Environmental Center Bathrooms
Saranac Fish Hatchery
Sacondaga Campground Bathhouse
Stamford Hdgt HVAC Renovations
Warrenburg Hdgt HVAC Renovations
Woodland Valley Campground Bathhouse
Nicks Lake Old Forge
Meachum Lake Campground
Northville Maintenance
Ogden B. Free Library - Walton, NY
Renovations
Oneonta City School - Oneonta, NY
Bus Garage
Riverside School Security Systems
Bus Garage Fire Alarm
Softball Field Renovations
Kitchen Renovations
Roof project P/H/E
Heating Plant upgrades
Oneonta Job Corps - Oneonta, NY
HVAC Renovations
Security Cameras
Fuel Conversion
Boilers
Water Heaters
Laundry Room
Barhroom Renovations
Smart Grid
Steam Boilers
Attic Fans
Oneonta Women's Shelter - Oneonta, NY
HVAC Renovations
Richfield Springs School - Richfield Springs, NY
Stage lighting
HVAC upgrades
Saint Mary's - Oneonta, NY
New School
Schenevus Central School - Schenevus, NY
Bus Garage
Sidney Central School - Sidney, NY
Bus Garage
Sharon Springs Central School - Sharon Springs, NY
Gym Alterations
Science Classroom
South Kortright School - S. Kortright, NY
Mechanical Renovation
Bus Garage and HVAC upgrades
Stamford School - Stamford, NY
Renovations Project
SUNY Cobleskill - Cobleskill, NY
Safety Phase V
Recreation / Tennis Building
Bouck Hall Cafe
Curtis-Mott Renovations
Parsons Hall Renovations
SUNY Delhi - Delhi, NY
Campus Wide ADA Renovation
Gerry Hall Renovation
Service Complex Renovation
Decker Auto Lab Upgrade
Wall Complex
Clark and Wall Service Additons
SUNY Oneonta - Oneonta, NY
Bugbee Hall ADA Upgrade
Bugbee Hall HVAC Modifications
Hunt College Bookstore
Hunt College Chiller Replacement
Hunt College Kitchen Renovations
Goodrich Theater Bathroom Renovations
Morris Hall HVAC Renovations
MTW Lines
Schumacker Hall Computer Labs
Schumacker Hall Food Service
Service Building Modifications
Textile Lab Fume Hood
Computer Lab A/C
Goodrich Theatre Renovations
Hamblin Theater Renovations
Hops House
Hulbert Hall Renovations
Telecom Phase II
Phone-A-Thon Room Renovations
Mills Hall Kitchen Renovations
UPD HVAC Renovations
Information Commons Renovations
Presidents Residents Renovations
IRC Commons Renovations
Telecom Project
Heating Plant Boiler Replacements
Fine Arts Phase 2
Fine Arts Window
Chase PE
Research Lab
ADA Modifications - Wrestling Room
Swartt-Wilcox Museum - Oneonta, NY
Renovations
Town of Otego - Otego Town Hall
Otego Community Pool
UCCCA Wilber Mansion - Oneonta, NY
HVAC
Unatego Central School - Otego, NY
Otego Elementary School HVAC
Unadilla Renovations
High School Renovations
United Presbyterian Church - Oneonta, NY
Worcester Central School - Worcester, NY
Science Classrooms Alterations
Bus Garage
Walton School - Walton, NY
Mechanical upgrade
Exhaust Hoods
2006 Flood Repairs
Renovations
Bus Garage Renovaitons
2013 Renovations