Hvac Case Study

Case Studies

Mesa Energy Systems is the leading mechanical, HVAC, and energy solutions company serving Los Angeles, San Francisco, and other major cities in California. We provide complete expert building automation systems and energy audits as well as HVAC design/build and installation services – such as Turbocor installs and industrial chiller services – that support your business instead of draining your bottom-line.

Click on the case study list on the left to learn more about the ways our creative mechanical construction solutions and customized sustainable energy services ensure high-performance BAS and commercial HVAC systems, comfortable and productive environments, and long-term investment protection.

As commercial HVAC contractors, we have the depth and breadth of experience to offer clients a complete package of services beyond the standard HVAC repair contractor. 

To request more information about any of these mechanical, heating, ventilation, air conditioning, and commercial refrigeration repair service projects, or to see how Mesa Energy Systems can help you focus on your core competencies, please email us. 

B/E Aerospace

The B/E Aerospace facility is an eight-building complex in North Carolina taking up more than 264,000 square feet of manufacturing floor space. Housing the company’s Seating Products and Design Studio division, the needs of this manufacturing are constantly changing.

Existing equipment was already 20 years old when they elected to partner with Piedmont for equipment maintenance over 10 years ago. 80% of the original equipment is still under contract and operating today (at 30 years old!). With every retrofit project, B/E Aerospace has recognized significant energy and operational savings. Automated Facility Solutions (AFS), a division of Piedmont Service Group, designed and installed a flexible HVAC control and energy management system using a single type of controller, keeping upfront costs to a minimum. As the aging HVAC equipment is replaced, B/E Aerospace maintenance staff can easily modify the controllers to reflect the new energy management and control strategies.

  • Annual Gas Savings:20%
  • Buildings in Complex:8
  • Area (Square Feet):264k

Eagle Transport

Eagle Transport has been a long term partner with Piedmont since 1990 and the service agreement has been self-funding since year one. The journey began with a service contract on the HVAC equipment.

In 1996 the pneumatic control system was replaced with a Novar Logic One full building control system. In 2010, the HVAC equipment serving the building was 23 years old and still running well. Piedmont performed an energy survey of the building to identify potential energy improvements. Faced with the opportunity to reduce their energy bills by 20%, Eagle Transport decided to replace the aging rooftop units with newer, high efficiency, environmentally friendly units. A lighting study was also performed to measure the lighting levels and density. Based on the results, Piedmont’s solution was to do a complete lighting retrofit and adjust the layout to better meet the current lighting requirements. As a result of these changes and improvements over the years, Eagle Transport scored an 87 on Energy Star.

  • Annual Energy Savings:$11,200
  • Annual Energy Savings:20%
  • Return on Investment:16.5%
  • ENERGY STAR Rating:87

Spectrum Properties

Spectrum Properties manages the prestigious Venture Center on the 1,120 acre Centennial Campus at NC State University. The 472,321 square foot Class A office complex recently won The Outstanding Building of the Year Award for 2011 in the Suburban Low Rise Office Park category awarded by the Raleigh-Durham BOMA chapter. Spectrum has partnered with Piedmont Service Group to provide ongoing maintenance services at these buildings.


  • Area (square feet):472,321
  • Office Building Classification:Class A
  • Buildings in Campus:5

PNC Bank

PNC Financial Services, headquartered in Pittsburgh, PA, is a diversified international financial services company. The PNC Financial Services Group, Inc. serves corporations, government and not-for-profit entities, middle-market companies, and institutional and retail clients through its branch network, call centers, and online banking channels. When PNC was looking for someone who could provide a comfortable and efficient environment for their customers and employees in the North Carolina area, they turned to Piedmont Service Group to maintain over 100 branches across the state.


  • Buildings Across the State of NC:100+
  • Service To insure uptime:24/7
  • Planned Energy Reduction:30%

The Umstead Hotel and Spa

The Umstead Hotel and Spa is a AAA Five Diamond rated luxury located in the heart of the triangle. They offer unparalleled luxury in an environment that expresses an appreciation for the arts and embraces the wonders of nature. The six-story hotel, nestled against a 3-acre lake, resides on 12 acres and is surrounded by plush gardens. It was only natural that when The Umstead was looking for a company to maintain all of their HVAC, Chilled Water, and Building Automation Systems, that they would look to Piedmont Service Group


  • Signature Forbes 5 Star Hotel:5 Star
  • Luxury Rooms:150
  • 5 Diamond Award:AAA
  • Green Plus Certification since 2010:Green+

Cary Towne Center / CBL Properties

Opened in 1979 as Cary Village Mall, Cary Towne Center is now over 1.1 million square feet and home to some of the largest brand names in the retail business. Managed by CBL Properties, the facilities and adminstration team has partnered with Piedmont Service Group to support their HVAC service, mechanical retrofit, and energy efficiency needs.


Liberty Property Trust

Liberty Property Trust was struggling with a failing controller on their existing automation system. PSG developed a solution involving TREND Controls, which provided the customer the ability to access their BAS from any computer with an internet connection. It also eliminated their dependency on Trane products as the Trend solution is an open protocol system. This solution will also help LPT reduce their future capital outlay for the facility because the Trend Controls are forward & backward compatible which won't require replacement due to obsolescence or software compatibility

Liberty Property Trust (NYSE: LPT) is a $8.8 billion real estate investment trust which owns 101 million square feet of industrial and office space throughout the United States and the United Kingdom.

  • Industrial & Office Space:101k sq. feet
  • Forward & Backward Compatibility :TREND Controls

ABNB Federal Credit Union

ABNB is a local credit union in the Hampton Roads area with its Corporate office located in Chesapeake and 14 locations throughout the Hampton Roads area. ABNB has been relying on Piedmont Service Group for all their HVAC needs for over 7 years.


  • Locations:14
  • PSG Customer since:2007

Henrico Medical Office Building

Henrico Medical Office Building, located in Richmond Virginia, was experiencing diculties with their aging HVAC equipment. After 30 years, parts were beginning to fail. Unable to shut down their building for extensive repairs Henrico MOB needed a company who could complete the renovations and replacements with little or no downtime. Piedmont Service Group was up to the challenge and completed the project to the highest standards.

Henrico Medical Offce Building is part of Henrico Doctor’s Hospital which is a 340-bed community hospital with the latest in advanced technology, a combination that enables us to deliver exceptional results.

  • Built in:1978
  • sq.ft.:38,000+

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