Our Business Hours
Monday - Friday: 6 AM - 5:30 PM
(Summer & Winter Closing Hours may vary)
Saturday: Closed
Sunday: Closed
Phone: (203) 755-5441 Fax: (203) 575-9431
80 Fulkerson Drive, Waterbury CT 06708
Site Content
Certifications & Memberships
Certifications & Memberships
Certifications & Memberships
History
Founded in 1956 by Walter A. Maknis, General Heat Treating Company, Inc. (GHT) moved to its current location in 1967 and was incorporated under the laws of the State of Connecticut in 1978. Larry W. Maknis joined his father in 1974 and took over as plant manager in 1977. Upon Walter's retirement in 1983, Larry assumed the position of company president.
In 1999, GHT completed its last expansion and currently boasts 10,000 square feet of state of the art vacuum furnaces and an ultrasonic cleaner. GHT meets the demands of national and international clientele with this commitment to delivering the highest quality service. Its clients include aerospace, automotive, government, medical device
In 1999, GHT completed its last expansion and currently boasts 10,000 square feet of state of the art vacuum furnaces and an ultrasonic cleaner. GHT meets the demands of national and international clientele with this commitment to delivering the highest quality service. Its clients include aerospace, automotive, government, medical device and commercial mfg. facilities. GHT's dedication to quality is reflected in its commitment to maintaining an ISO 9001 management system.
General Heat Treating relocation ribbon cutting ceremony
Left: Walter A. Maknis
Right: Former Mayor Frederick W. Palomba
Picture taken November 1967
Certifications & Memberships
ISO Certification
General Heat Treating is ISO 9001:2015 certified by Amtivo.
Initial Certification: Friday, December 17th, 2010
Expiry Date: Thursday, November 23, 2028
To get a copy of GHT's ISO Certification, please email us.
Thank you.
Membership
In 2025 General Heat Treating Co., Inc. became a member of the
Metal Treating Institute.