The SMI Group provides our clients with NEBB Certified sound level measurement testing services complete with 1/3 octave center band frequency data in unweighted, A-weighted levels and in A-weighting response correction.

In August 2015, Lyndon McGill became a Business Partner in The SMI Group. As the President of The SMI Group, Mr. McGill approaches his role through a respectful, constructive, and energetic style guided by the objectives of the company.

The SMI Group provides our clients with NEBB Certified sound level measurement testing services complete with 1/3 octave center band frequency data in unweighted, A-weighted levels and in A-weighting response correction.

Approved access to government facilities based on personal background checks completed by both SMI Group, Inc. and/or the United States Government (US Government entities, subsidiaries, or approved organizations).

Approved access to government facilities based on personal background checks completed by both SMI Group, Inc. and/or the United States Government (US Government entities, subsidiaries, or approved organizations).

For over 25 years SMI Group, Inc. has consistently developed a reputation of excellence. As a company we take pride in going beyond what is required and raising the standard associated with the Testing, Adjusting, and Balancing portion of the construction field.

The SMI Group empowers our employees to inspire our clients and be inspired daily by our ever evolving field. If you are interested in a career with the industry’s leader in the Testing, Adjusting, and Balancing (TAB) of Commercial and Industrial Mechanical HVAC Systems, feel free to view our current available position (s) below.

Send Us A Message We are here to answer any questions you may have about our services. Reach out to us and we will respond as soon as we can. Additionally, you can find our mailing address, phone number or email in the contact info section.

The S MI Group provides carefully tailored and affordable services while exceeding the expectations of our clients. With over 25 years of industry experience, our company is comprised of National Environmental Balancing Bureau (NEBB) Certified Professionals (CPs) and Technicians (CTs).

HVAC Forensics consists of detailed investigations associated with all aspects of an HVAC system to determine the causes resulting in diminished operational capacities of systems. At times, slight modifications can be implemented for reducing the energy foot print of a building by fine tuning the HVAC systems within the Direct Digital Control (DDC) network. In-depth system …