BUILT ON RELIABILITY.
DRIVEN BY QUALITY.
BACKED BY TRUST.
Commercial & INdustrial
Keystone provides reliable HVAC solutions for commercial and industrial facilities, from banks to utility infrastructure. We offer value engineering approaches that optimize cost, constructability, and long-term performance.
Federal
With more than a decade of federal HVAC contracting experience, Keystone has supported NAVFAC, USACE, NOAA, and other federal agencies. We streamline project execution for GCs, IDIQ/MAC holders, and Contracting Officers through proven processes, compliance-driven coordination, and clear communication.
Services
Heating, ventilation, air conditioning
Keystone is a Class A HVAC contractor with an experienced in-house mechanical team delivering high-quality HVAC systems across commercial and residential applications. From multi-head VRF systems, RTUs, and DOAS to full duct installations and retrofit work, we execute every project with precision
electrical
As Class A Electrical Contractor the Keystone team provides comprehensive commercial electrical services for new construction, renovations, and existing facilities. By self-performing electrical work, we eliminate the need for additional trades—reducing cost and simplifying coordination. We deliver interior and exterior lighting, LED retrofits, power distribution systems, panel and service upgrades, and dedicated power and communication wiring for HVAC equipment, controls, and building systems, along with troubleshooting and underground cabling installation and repair.
Gas
Keystone performs gas work as an integrated part of our mechanical scope, supporting HVAC equipment that relies on properly designed fuel systems. Our team completes gas piping, meter upgrades, and capacity modifications to serve RTUs and other gas-fired equipment. Handling this work in-house allows for tighter coordination with mechanical installations, fewer project delays, and systems that are sized and installed correctly from the start. Keystone is licensed to perform this work as a Class A gas contractor.
service & Preventative maintenance
Keystone provides ongoing service and preventative maintenance for commercial and federal facilities, backed by over a decade of operations and maintenance experience. Our approach focuses on reliability, transparency, and long-term asset performance—delivering straightforward maintenance programs without sales-driven tactics. We are experienced working within CMMS platforms, including IBM Maximo, allowing integration with existing asset management systems to support documentation, tracking, and lifecycle planning for building owners and tenants.
Value engineering & preconstruction
Keystone approaches every project with a value engineering mindset focused on maximizing competitiveness for the general contractor, builder, and ultimately the owner. Our dedicated preconstruction team develops thorough, clearly defined proposals that identify unnecessary scope, eliminate inefficiencies, and align system selections with project intent.
By analyzing constructability, performance, and lifecycle cost early in the process, we deliver solutions that reduce risk and cost while exceeding efficiency standards and project requirements. The result is a streamlined scope, predictable execution, and HVAC systems that perform as intended long after turnover.
OUR EXPERIENCE & CLIENTS:
Marriot
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chase bank
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bank of america
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centura college
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zumiez
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MEB
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Ocean construction
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rectenwald Brothers construction
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Tazewell Contracting
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taylor construction
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burdg-dunham
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builtech
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Marriot • chase bank • bank of america • centura college • zumiez • MEB • Ocean construction • rectenwald Brothers construction • Tazewell Contracting • taylor construction • burdg-dunham • builtech •
