Mechanical Engineering

With extensive nation-wide project experience, Benchmark Group’s Mechanical team has the expertise and code knowledge to create sound, effective, and cost-efficient mechanical systems for your project. We can produce a more complete design with fewer changes required in the field during construction. This moves the project along smoothly with fewer delays and reduces the number of costly change orders during the building of the project.

Our team believes in high quality construction documents at a reasonable cost for every Client. This begins with open lines of communication, quick response time by us, and attention to details – all which set our highly skilled team above the competition. Maintaining long-term client partnerships through quality and client satisfaction are the foundation we were built on and continues to be our goal.


  • Automotive Fueling Systems
  • Code Research & Analysis
  • Combustible Dust
  • Commissioning
  • Compressed Air Systems
  • Cost Estimating
  • District Steam/Chilled Water Systems
  • Domestic Water System Design
  • Energy Modeling
  • Flammable Construction
  • Forensic Investigations
  • Functional Testing
  • Ground Source Heat Pump
  • Hazardous Material Storage & Handling
  • Heating & Chilled Water Systems
  • Heating, Ventilation & Air Conditioning (HVAC) Design
  • Heat Reclaim
  • Humidity Control
  • Indoor Air Quality
  • Industrial Ventilation
  • Mechanical System Survey
  • Natural Gas Systems
  • Plumbing Design
  • Rainwater Harvesting
  • Sanitary & Storm Drainage Systems
  • Sequences of Operation
  • Service Water Heating
  • Sustainable HVAC Design
  • Sustainable Plumbing Design
  • Value Engineering
  • Water Source Heat Pump

Client Testimonials

“GPW & Associates has worked with the Benchmark Refrigeration and Fire Protection Division for over 3 years on various Walmart Remodel and Sam’s Club Projects. Their teams are always responsive and perform with the highest level of professionalism. They are collaborative and efficient, and they always put the needs of their clients as their highest priority. We highly recommend them for projects related to the Big Box, Retail, and Grocery Store Markets.”

Gina Pacumbaba-Watson
President & CEO, GPW & Associates, LLC | Engineering Consultants


“Benchmark Group has become an extension to our company related to refrigeration design, engineering, and product collaboration. The team has gone above and beyond to assist with integrating our European products into the United States. By utilizing the Benchmark Group’s services, we have been able to eliminate multiple design errors and improve on our deliverables. We are very pleased with the responsiveness, and willingness to help and provide industry advice when we need a neutral point of view. We trust Benchmark and recommend using their services.”

Clay Galloway, C.E.M.
Director, Sales, AHT Cooling Systems USA, Inc.

“Guss Jahchan, AIA, and his team at Benchmark Group, have handled a crucial and important Value-Engineering exercise for one of our corporate stores in Virginia. They had developed and maintained our present corporate prototype, while they were able to point out areas of savings, without jeopardizing the aesthetics or the quality of our store.  We at Propelled Brands, have found the Benchmark team to be highly professional while keeping our interest at the forefront of their work.  Our plan is to continue to work with Benchmark Group for our architectural and engineering (A&E) needs and recommend them to others that need full professional A&E assistance.

Steve J. Elliott
Owner | Architect, SJE Architects

“Our Experience with the team at Benchmark was fantastic! They did a great job of interpreting what we wanted and suggesting what would be a good fit. The little details in design made a difference. They were responsive to questions, very accommodating to changes, and easy to do business with. We are very happy and would recommend their services.”

John Johnson
Co-Owner, D-BAT Northwest Arkansas

“Stephanie Whorton and Benchmark Group as a whole, have been super helpful, and I have really enjoyed working with them. Hopefully, we can do many more jobs together.”

Raymond Weaver
Owner, Weavers Farm & Furniture