Tolin Mechanical Systems Company, LLC

Tolin Mechanical Systems Company, LLC, operating as a Honeywell Authorized Dealer and a subsidiary of Mshc, Inc. (Service Logic), is a for-profit limited liability company based in Denver, Colorado that delivers HVAC, refrigeration, and mechanical systems installation, maintenance, and emergency repair services to civilian federal agencies as a prime contractor (96% of awards) with no SBA set-aside profile. The vendor competes full-and-open across all customer categories and does not hold 8(a), HUBZone, SDVOSB, or other SBA certifications.

The top customer concentration is steeply tilted toward the National Science Foundation Ice Core Facility, the Indian Health Service, and the U.S. Geological Survey. The Department of the Interior's U.S. Geological Survey Office of Acquisitions and Grants accounts for nine awards and $1.5 million in combined potential value (16% of portfolio), while the Department of Health and Human Services Indian Health Service holds four awards and $1.2 million, and the Bureau of Reclamation and Environmental Protection Agency round out the active agency set. However, the General Services Administration Federal Acquisition Service dominates the potential-value ranking, anchoring 94% of portfolio dollars with a single Federal Supply Schedule contract (47QSMS24D008M) valued at $5.8 million and running through June 2029. This GSA MAS vehicle, awarded June 13, 2024, covers HVAC installation, maintenance, and repair services nationwide under SIN 561210FAC and carries HVAC Technician labor at $157.98 per hour (high school education, one year experience, no clearance required). The vendor also participates in three agency-specific indefinite delivery contracts with USGS, Bureau of Reclamation, and the Environmental Protection Agency, though task-order volume across these vehicles is minimal.

Tolin Mechanical's core competency portfolio centers on preventative maintenance, emergency repair, and system upgrade of HVAC and CO2 refrigeration infrastructure at federal civilian facilities. Representative work includes a $502,171 time-and-materials contract with USGS (on behalf of NSF) for ongoing maintenance of the Ice Core Facility's freezer building and refrigeration systems in Denver through November 2026 (now in option period four), a $526,597 six-month rental and maintenance agreement with the Indian Health Service for an HVAC chiller unit in Parker, Arizona (awarded July 2025, running through November 2026), and a $142,000 operations-and-maintenance contract awarded September 2025 by USGS for a CO2 refrigeration plant supporting the NSF Ice Core Facility. These contracts reflect the vendor's specialization in high-precision refrigeration requiring 99.5% system uptime and strict temperature control to preserve scientific samples valued at approximately $750 million. The vendor also handles emergency mechanical repairs and equipment rental; recent examples include $238,578 in emergency chiller repair and $163,520 in emergency chiller rental and repair services at IHS facilities in 2023–2024, and a $11,306 humidifier installation order from the Federal Highway Administration in February 2026.

Activity has been modest and episodic—two awards in 2021 and 2023 respectively, three in both 2024 and 2025, and one in early 2026—with three awards (combined potential value $1.2 million) reaching ultimate completion within the next twenty-four months and therefore facing recompete. SCI-reportable data is sparse and shows zero invoiced revenue across FY2022–FY2024 (the contracts above the $150,000 threshold do not appear in SCI federal-service-contract reporting), though FY2024 SCI records show 3.1 FTEs delivered on one prime record. The vendor subcontracts minimally; two recent sub awards under Asrc Federal Facilities Logistics for humidifier installation and split-system replacement work indicate occasional sub-tier engagement but do not characterize primary business posture. Tolin Mechanical's customer base spans 17 distinct agencies across civilian infrastructure and research missions, with geographic work concentration in the Rocky Mountain region (Colorado, Arizona) and a stated track record with the Bureau of Prisons, the Department of Veterans Affairs, and the Department of Homeland Security alongside the primary USGS and IHS relationships.