Engineering Services

Sigma's engineers are experts in the fields of electrical, mechanical, civil/site, and structural engineering.

Electrical Engineering

Sigma’s electrical engineers possess experience in field investigations, testing, studies, design, oversight, and implementation of a wide variety of systems. We have conducted short circuit analyses, power factor studies, energy audits, and load flow analyses as well as designed complete systems and system components.

Mechanical Engineering/HVAC/Plumbing

Sigma’s mechanical engineers perform sizing and layout of equipment and pipes for various types of process and treatment facilities from room sized units to building and campus-wide systems. These services include security preventions and protection design, evaluation, and testing to ensure systems are properly maintained. Our HVAC services include everything from energy audits, plant ventilation analysis, and evaluations, through design, equipment selection, installation oversight, testing, tuning, and training on new and installed units.

Civil/Site & Structural Engineering

Sigma provides complete civil/site/structural services including analysis, planning, design, regulatory compliance, and permitting reviews, as well as oversight for construction and maintenance of building structures and facilities, such as roads, railroads, airports, bridges, power plants, water, and wastewater systems.

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With resources throughout the United States and our offices in the Midwest and Mid-Atlantic, we possess the capabilities to mobilize quickly to service our clients' needs.

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We offer more than the sum of our services

Sigma has the versatility to satisfy client needs through varied project delivery methods.

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Experience. Accountability. Quality.

Delivering engineering support throughout all phases of a project from concept, planning and design, through integration, construction, startup, training, and on-call maintenance.

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