Our History



In 1945, Schweiger Heapy and Associates is established. Marv Heapy served as the first President.

On November 1, 1945, the 1st office was opened on the 5th floor at the corner of Second and Main Streets. It then moved to West Third and Broadway Streets in 1947.

Initial capital investment of $1,500 was divided equally among three initial partners.

The first full-time employee was hired in June of 1947.


In 1950, the firm had five employees. By 1952, the firm had grown to twelve employees.

Major Projects Included:
Grant Hospital
Mercy Medical Center
Mount Carmel Medical Center
Mount Carmel East
Doctors North & Doctors West
Mercy in Mount Vernon
Good Samaritan (Dayton & Zanesville)
Ohio Valley in Steubenville
Scioto Memorial in Portsmouth
Wilson Memorial in Sidney
Bucyrus Hospital in Bucyrus
Piqua Memorial Hospital in Piqua


Schweiger Heapy and Associates became Heapy and Associates. In 1960, the firm had 20 colleagues.
In 1962, Heapy & Associates, along with Lorenz + Williams, designed the over-all site and the first building (Allyn Hall) for the newly established Dayton Campus of Miami University / Ohio State University later renamed Wright State University.
In 1965, the firm moved to 24 N Jefferson StreetSam Moorman took over Managing Partner / President duties from Marv Heapy in 1967.


In 1973, Heapy & Associates established its first regional office in Columbus, Ohio. Also in 1973, the firm created its Field Inspection Department.
In 1975, Heapy & Associates had 33 collegues.
In 1976, Tom Ferdelman became company President.
In 1970, the number of projects listed totaled 56. These numbers grew to over 200 in 1976 and to almost 300 in 1979. The majority of these projects were in the healthcare market.


In 1980, Heapy and Associates was renamed Heapy Engineering.
Heapy Engineering moved into a newly built Headquarters that received an International ASHRAE Energy Award as one of the most energy efficient office buildings in the world.
In 1981, Heapy Engineering creates a Special Project’s Team to provide Commissioning, Energy Analysis and Master Planning Services.
In 1985, Heapy Engineering had 89 colleagues.


Heapy Engineering continues to grow with 110 colleagues by 1998.
In 1992, Heapy Engineering becomes fully “computerized” and establishes an IT Department to support internal technology needs.
In 1998, Rick Weber became company President.
Heapy Engineering creates a Technology Services Department to address expanding client needs as many MEP systems become computer based.


In 2001, Heapy Engineering moves to new Headquarters which receives: Governor’s Award for Excellence in Energy Efficiency and AIA Design Excellence Award.
Heapy Engineering starts Indiana operations in 2004.
In 2005 Rick Pavlak is elected company President. Heapy Engineering has 136 colleagues.
In 2005, Heapy Engineering becomes an ISO Certified Company FS-98575 to ensure delivery of high quality while providing innovative and creative concepts on all projects.


Heapy Engineering expands to reach over 165 colleagues. Total number of offices increases to five.
In 2010, Heapy Engineering opens third and fourth regional offices in Cleveland and Findlay, Ohio.
In 2011, Heapy Engineering Headquarters receives LEED Platinum.
In 2012, Heapy University is offered as a series of technical classes focused on teaching our staff the “Heapy way” of MEP design principles to keep our staff at the top of the industry.


Heapy Engineering is now HEAPY.  Sustainability and Energy Services along with Commissioning have become core disciplines.  The firm has now reached over 200 employees with Over 400 LEED Projects and Over 100 LEED AP’s.
In 2020, HEAPY  celebrated 75 YEARS of REAL COLLABORATION in the MEP Consulting Business, REAL  PERFORMANCE in energy and renewable solutions and REAL INSPIRATION in the environments we design.
Mark Brumfield was elected the new Chief Executive Officer.
HEAPY is now open in Raleigh, North Carolina. This newest office will fuel the continued growth of HEAPY and accelerate smart technology integration within the built environment.


HEAPY is registered to perform Engineering services in the following states:

  • Alabama
  • Arizona
  • Arkansas
  • California
  • Colorado
  • Connecticut
  • Delaware
  • Dist. of Columbia
  • Florida
  • Georgia
  • Hawaii
  • Idaho
  • Illinois
  • Indiana
  • Iowa
  • Kansas
  • Kentucky
  • Louisiana
  • Maine
  • Maryland
  • Massachusetts
  • Michigan
  • Minnesota
  • Mississippi
  • Missouri
  • Nebraska
  • Nevada
  • New Jersey
  • New Mexico
  • New York*
  • North Carolina
  • Ohio
  • Oklahoma
  • Oregon
  • Pennsylvania
  • Rhode Island
  • South Carolina
  • South Dakota
  • Tennessee
  • Texas
  • Utah
  • Vermont
  • Virginia
  • Washington
  • West Virginia
  • Wisconsin
  • Wyoming

*Providing services through Heapy Professional Services, Inc.

Thought Content

Seasonal Maintenance Increases Efficiency and Improves Indoor Air Quality

By: Ryan Hoffman

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