48 years of engineering, fabrication, and delivery experience — with the range and depth to handle virtually any prefabricated enclosure requirement in the United States and beyond.
Every JQMC building starts with structural steel — welded and certified to AWS D1.1. We engineer for the full range of environmental loads: wind speeds from 130 to 180 MPH ultimate, all seismic design categories, and floor and roof loads tailored to your specific equipment and climate zone. Single-module or multi-module configurations, with architectural facade options including brick veneer, metal panels, and custom coatings.
Buildings leave our Denver facility fully wired, terminated, and tested — not partially assembled. Protective relay panels, switchgear, motor control centers, power distribution, SCADA, and communications equipment are all integrated under one roof by our in-house electrical team. Dielectric testing, megger testing, polarity verification, and full operational checkout happen before the building ever leaves the factory floor.
From the Mojave Desert to Alaska, our buildings are engineered for the actual conditions they'll face. Precision HVAC sizing based on real equipment heat loads — not rules of thumb. Hazardous location compliance for oil and gas environments, EMI shielding for sensitive electronics, and thermal envelopes that exceed IECC minimums. Every environment has different demands, and every JQMC building is designed to meet them.
Our central U.S. location means efficient transport to any site in the country. We handle DOT permitting, wide-load logistics, and coordinate directly with rigging and crane crews for final placement. Our own installation team has decades of experience setting buildings on piers, pads, and steel — so when the truck arrives, we're there to land it right. Find our enclosures anywhere from Denver to Guam, Alaska to New Jersey, and 15+ countries worldwide.
Every JQMC enclosure is engineered, fabricated, and tested under one roof.
ClickTap any card below to explore what goes into it.
Click any of the seven cards above to see the components, codes, and capabilities that define that system.
JoaQuin's integrated teams maintain quality and accountability at every project stage — from the first design review to the final bolted connection on site.
A dedicated team understands your exact specifications and develops a personalized, unique estimate for every project — not a cookie-cutter template. Experienced reviewers ensure you get exactly what you need, with pricing and delivery to match. Every project is then managed individually to ensure timeline, paperwork, and documentation meet contract requirements.
Our experienced CAD Design team dedicates itself to each custom project to ensure exact requirements are met with the highest safety and quality. Every design goes through internal approval, customer approval, state approval (where required), and Professional Structural Engineer approval. We handle all submittals and maintain close working relationships with PEs and state agencies — we take care of it for you.
A full electrical design team with two Master Electricians ensures every piece of electrical in our buildings is fully installed, integrated, and operational to code. We work directly with your teams so all electrical functions are completed before the building arrives — from power to controls to full relay panel and BESS integration.
Our Supply Chain team has deep knowledge of the products and materials required in your buildings, ensuring you receive the highest quality materials. Strategic relationships and partnerships with trusted suppliers provide the best support, pricing, quality, and delivery. JQMC works to source U.S. materials whenever possible.
Our Production team brings 48 years of experience in tried-and-proven manufacturing of the highest quality buildings in the industry. Manufacturing spans three key areas: structural, finishing/coating, and full electrical. A 95%+ on-time delivery record testifies to the pride our production team takes in their work — capable of building any structure with any design.
ISO 9001:2015 certified and certified through many customers' quality systems. The quality team performs 100% inspection on every building — structural, paint, electrical, and everything in between. Quality documentation accompanies every building, with state certification where required. Our team maintains close connections with all relevant state authorities. Every JQMC building is covered by a comprehensive manufacturer's warranty — specific terms documented per project, available on request.
JQMC handles all shipping through close partnerships with carriers equipped for our wide-load specifications. DOT-compliant transport, route planning across all 50 states and 15+ countries worldwide, and direct coordination with rigging crews — so your building arrives on schedule and intact, no matter the destination.
Our experienced offload team is on site for every delivery — coordinating crane service, supervising building placement on piers, pads, or anchor-bolt foundations, and running final operational testing to confirm every system is live before we leave. Your site is one step closer to commissioning the moment we pull out.
Real specs, real challenges, real outcomes. Click any project to expand the full engineering and delivery story.
A utility client needed a substation control building for an extreme wind exposure site — fully integrated with protective relay panels, SCADA, dual HVAC, BESS and battery systems, and tertiary disconnects. The building had to arrive site-ready with zero field electrical work required.
JQMC delivered a pre-wired, factory-tested substation building on a welded steel skid with integrated foundation package. Insulation exceeded IECC minimums, structural steel was engineered to ASCE 7 wind loading, and the entire electrical system — relays, panels, conduit, and controls — was installed, terminated, and tested in our Denver facility before shipment.
Our in-house electrical team handles protective relay panel integration on every project — so the building arrives commissioned, not half-finished. Pre-wired, terminated, and factory-tested in Denver, every time.
An electric utility required a multi-bay switchgear building housing medium voltage breakers, metering, and protective devices — with proper arc flash boundaries, ventilation sized to actual heat loads, and maintenance access from multiple sides.
JQMC engineered the building around the customer's equipment submittals — coordinating bus duct penetrations, cable entry points, and floor openings with the switchgear manufacturer before steel was cut. The result was a pre-wired enclosure where every clearance, every raceway, and every ventilation path was right the first time.
We handle the full voltage range from 208V to 138kV, and our buildings support equipment loads well beyond what most fabricators can accommodate. Submittal coordination with your switchgear manufacturer happens before steel is cut — on every project.
A transit authority needed multi-module traction power substations for a streetcar extension through an urban corridor. The buildings had to convert utility AC power to DC traction power while meeting strict FTA/APTA standards and blending into the surrounding streetscape with architectural finishes.
JQMC delivered TPSS enclosures with architectural brick veneer facades, dielectric flooring, specialized ventilation for rectifier heat loads, and noise-attenuating wall assemblies — all factory-tested before placement adjacent to active rail corridors.
We handle the full traction power range from 600V to 1500V DC, and AC distribution up to 138kV. Every transit building leaves Denver factory-tested — buildings range from compact signal houses to 90'+ multi-module configurations.
An industrial client needed a power control center building housing motor control centers, VFDs, panelboards, and transformers — with floor loading engineered for heavy equipment, multiple cable entry points, and a complete pre-wired electrical system ready for immediate connection.
JQMC designed the building around the actual equipment layout — reinforced floors for heavy MCC lineups, dedicated cable trenches, overhead busway provisions, and HVAC sized to real heat dissipation requirements.
Every power control center leaves Denver factory-tested and ready for energization. We support the full amperage range of 200A–8000A+ and voltage from 208V through 138kV — engineered around your actual equipment layout, not a generic template.
The FAA required instrument landing system and approach lighting shelters for a regional airport runway approach upgrade — built to stringent FAA Advisory Circular requirements with redundant environmental controls, EMI shielding, and certified lead- and asbestos-free construction. The shelters had to be fully pre-wired and ready to deploy within a fixed runway closure window.
JQMC fabricated the glide slope and localizer shelters with precision thermal management, generator and UPS backup power integration, clean copper grounding, and hardened security provisions — all factory-tested before delivery to the airfield. The shelters arrived ready for foundation set and immediate energization, eliminating prolonged on-site construction adjacent to active aviation operations.
JQMC has been the trusted FAA shelter manufacturer since 1978 — nearly half a century of continuous supply to the aviation industry, deployed across the Continental United States, Alaska, Hawaii, Guam, Germany, and beyond. We build ALSF, ALS, and ILS shelters in configurations from compact single-room units to multi-room equipment buildings. If it protects aviation electronics, we've built it.
An electric utility needed a SCADA and fiber communications hub at a transmission substation — requiring precision thermal control for sensitive electronics, integrated EMI bonding and grounding, NERC CIP compliant layout, and hardened physical security.
JQMC delivered a fully climate-controlled, security-hardened communication shelter with clean copper ground grid, integrated cable tray routing with proper bend radius provisions, and R56-compliant grounding and bonding.
Our communication shelters protect everything from SCADA systems to fiber distribution to radio and microwave equipment — in configurations from compact relay houses to multi-room communication centers, with R56 grounding and NERC CIP layout discipline on every build.
A renewable energy EPC needed collector substation buildings for a utility-scalesolar facility in the desert southwest — engineered for extreme heat, remote site access, and integration with inverter systems and step-up transformers.
JQMC delivered pre-wired solar control buildings with HVAC systems sized for continuous desert heat loads, seismic bracing per site-specific requirements, and full NEC electrical integration.
We build for the full range of renewable energy applications — solar control buildings, wind farm substations, BESS enclosures, and collector station buildings. Every building arrives factory-tested and ready for immediate energization, even at the most remote project sites.
A data center infrastructure contractor needed 16 fully built-out enclosures delivered on a rolling monthly schedule — structural, electrical, HVAC, fire suppression, cable management, and finishes complete — with consistent quality across every unit and zero tolerance for missed delivery dates.
JQMC engineered, fabricated, and fully integrated all 16 units from our Denver facility, delivering turnkey enclosures sequentially over five months. Each building shipped complete — switchgear installed, cable trays loaded, HVAC commissioned, and factory tested before leaving the floor. American steel was specified throughout with pricing locked at purchase order to eliminate tariff exposure.
Our facility supports high-volume sequential production of complete data center buildings — switchgear houses, cooling enclosures, power distribution centers, UPS buildings, and BESS (battery energy storage) enclosures — with ISO 9001 QC documentation on every unit and American steel pricing locked at PO.
An oil and gas operator needed equipment enclosures for wellpad operations in a Class I Division 2 environment — requiring explosion-proof electrical systems, gas detection integration, and construction rated for extreme temperature swings and corrosive atmospheres.
JQMC delivered hazardous-rated enclosures with Class I Division 1 and Division 2 compliant electrical systems, integrated gas detection, specialized ventilation, and corrosion-resistant construction.
We build for the full spectrum of oil and gas applications — from compact instrument shelters to large MCC and power distribution buildings. Every building is engineered to the specific hazard classification of your site, with the documentation packages EPC contractors require.
A military installation needed a microgrid control building integrating solar generation, BESS (Battery Energy Storage Systems), backup generators, and grid-tie controls into a single pre-commissioned enclosure — capable of islanding operation and seamless source switching.
JQMC delivered a factory-tested microgrid control building housing inverters, transfer switches, BESS and battery management systems, SCADA controls, and generator interconnections. The building was pre-wired and commissioned in Denver — the military installation crew simply connected external feeds and the system was operational.
We build microgrid enclosures for military, industrial, campus, and remote community applications — fully pre-commissioned in Denver so site teams plug in feeds and energize, not assemble systems from scratch.
A transit authority needed signal houses and wayside equipment buildings deployed along an active light rail corridor — built to withstand constant vibration, meet FTA compliance, and minimize the on-site construction window adjacent to live tracks.
JQMC delivered factory-complete signal houses and wayside buildings that required only foundation placement and external connections on site — eliminating months of trackside construction.
We build the full range of transportation infrastructure from compact signal houses to 90'+ multi-module TPSS configurations, all engineered for the vibration, noise, and safety demands of active rail corridors. If it powers or controls a transit system, we build it.
48 years of engineering, fabrication, and delivery — to the industries that can't afford to get it wrong.