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The mission of Harold G. Butzer, Inc.
is to serve a customer in such a manner as to become the preferred provider of plumbing, heating, ventilating, air conditioning, piping, sheet metal and refrigeration systems. In order to gain preferred provider status, the Company will, after a discussion of needs or problem, offer one or more cost effective solutions for customer consideration.
Harold G. Butzer, Inc. is the leading design-build mechanical contractor in Central Missouri.
Our staff includes five mechanical engineers, one environmental control technology manager and one civil engineer.
We provide prompt 24/7 service in Jefferson City and the Surrounding areas for:
- Plumbing, including sewer work
- Heating, Air Conditioning
- Refrigeration.
We offer sales, service and installation for residential, commercial, industrial and institutional uses. Design and installation of energy solving efficient temperature control systems for new or existing installations.

1. Award for Outstanding Mechanical Installation
for: Harry S. Truman, State Office Building, State of Missouri. Awarded by Mechanical Contractors Association of St. Louis Industry Benefit Fund. 1984
2. Award for Outstanding Mechanical Installation
for: John C. Christy, Municipal Building, City of Jefferson, MO. Awarded by Mechanical Contractors Association of St. Louis Industry Benefit Fund. 1984.
3. Award for Outstanding Mechanical Installation
for: Teva Pharmaceutical USA. Awarded by Mechanical Contractors Association of Easter Missouri Benefit Fund. 2004
4. Award for Outstanding Mechanical Installation
for: Walthall M. Moore, Small Animal Research Facility, Lincoln University. Awarded by Mechanical Contractors Association of St. Louis Industry Benefit Fund. 1982
5. Award for Outstanding Mechanical Installation
for: Harper Army Dental Clinic, Fort Leanord Wood, MO. Awarded by Mechanical Contractors Association of St. Louis Industry Benefit Fund. 1978
6. Award for Outstanding Mechanical Installation
for: Unilever Americas, Project Spartacus. Awarded by Mechanical Contractors Association of Eastern Missouri Industry Benefit Fund. 2010