Nexus Group—Predicted Performance. Verified Results.

Nexus Group leverages critical contracting services—building commissioning/re-commissioning/retro-commissioning, performance contracting, energy services and measurement and verification—to provide building owners with confidence. Nexus will ensure building systems are manufactured and installed to specifications and are ready to operate as designed throughout their lifecycle.

Our mission is to provide independent, unbiased and best practice services to building owners and facility managers in the following areas:

  • Building spaces functions as specified
  • Systems (mechanical, electrical, automation/integration, fire and safety and specialty) function as specified and are compliant to applicable building codes
  • All systems optimized to save energy and reduce operational costs
  • Building environment is safe and healthy
  • Proper documentation from design through completion

Nexus Group is a Service-Disabled Veteran-Owned Business located in Wichita, Kansas. We serve the greater Wichita area and across the state of Kansas and surrounding states (Arkansas, Colorado, Missouri, Nebraska, Oklahoma and Texas).

Contact Nexus Group to learn more about our services.

Nexus Group Services

  • commissioning Nexus Group
    Commissioning

    The process of ensuring all building spaces and systems perform as designed
  • performance contracting Nexus Group
    Performance Contracting

    Contracting that couples performance-based solutions and guarantees
  • energy services Nexus Group
    Energy Services

    Energy managed to optimize efficiency, maximize results and mitigate risks
  • measurement and verification
    Measurement & Verification

    In order to effectively manage, an organization must measure performance. And to trust performance, an organization must verify results

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Nexus has broad market experience

Our industry experience is broad and extensive. We have helped owners and operators across many industries and have developed particular expertise in meeting the rigorous requirements of the medical industry.

  • Commercial office buildings
  • Industrial facilities
  • Hospitals, surgery centers and medical facilities
  • Schools and educational campuses
  • Churches and religious buildings
  • Government buildings
  • Retail buildings
  • Hotels

GREENsburg Hospital

A devastating EF-5 tornado decimated the town of Greensburg on May 4, 2007. The existing hospital protected those seeking shelter inside even as the force of the wind-driven debris destroyed it. A new facility needed to be constructed as quickly as possible.

Delivering for the Post Office

The U.S. Postal Service has undertaken an initiative to reduce energy consumption at its processing and distribution centers across the U.S.

Acknowledgement: Success stories represent the shared experiences of Phil Sewell and Central Mechanical Wichita LLC (CMW). Stories are published with permission from CMW and its ownership group.

Phil Sewell, president Nexus Group LLC

Phil Sewell


Owner / President

Nexus group is owned and operated by Phil Sewell, former owner of Central Mechanical Wichita (CMW) for 25 years. Sewell is a recognized leader in the mechanical systems contracting industry with more than 40 years of critical, hands-on work experience across many market segments.
“Whether it was doing the extra things it takes to make a quick deadline, being resourceful to get a project within budget, Phil never failed in making it happen for us or our clients.”

Rick McCafferty
Key Construction

“I have known and worked with Phil Sewell for over 30 years. As mechanical systems become more and more complex Phil has been a proven resource to ensure customers receive the highest value.”

Mark Hutton
Hutton Construction

“I personally and professionally recommend Phil Sewell. I can attest to the high standard of integrity he has always demonstrated.”

Rick McCafferty
Key Construction

"I have a high level of trust in Phil’s approach to the balance of sound engineering with reasonable cost. As a construction manager, he has supported numerous projects with a timely body of work that is understandable to my owners as well as our team."

Bob Simpson
Simpson Construction