Healthcare Electrical Contractor

Healthcare electrical construction is defined by the codes that govern it. H&M Electric designs and installs essential electrical systems in strict conformance with NFPA 99 and NEC Article 517, separating the life-safety, critical, and equipment branches so that generators, transfer switches, and branch distribution behave predictably under fault and outage conditions.

Our field crews and project managers understand what the code language means at the device level: how quickly a transfer switch must restore power, where a branch may and may not be bonded, and how to keep the emergency system electrically and physically isolated from the normal source. That fluency is why general contractors and hospital facilities teams trust H&M with the branches that patient survival depends on.

Every installation is documented for the authority having jurisdiction and for the facility's own compliance record, so commissioning, inspection, and Joint Commission readiness proceed without surprises.

Operating rooms, hybrid ORs, and other wet procedure locations demand ungrounded isolated power systems with line isolation monitoring. H&M installs isolated power panels, reference grounding, and monitoring so that a single fault cannot interrupt a procedure or introduce a shock hazard around the patient.

We coordinate isolated power layouts with the surgical equipment, booms, and integration systems that share the room, and we test and document line isolation monitor performance before the space is turned over. The result is a procedure environment that meets code and gives clinical staff confidence in the power under their feet.

Diagnostic and interventional imaging is among the most demanding electrical work in the building. H&M has powered MRI, CT, and angiography suites, electrophysiology labs, and cardiac catheterization labs where equipment power quality, grounding, and shielding coordination are non-negotiable.

MRI rooms in particular require close collaboration with the vendor and the RF shield contractor: penetrations, waveguides, filtered power, and quench-vent-adjacent conduit routing all have to be resolved before rough-in. We plan these interfaces early so the magnet arrives to a room that is ready for it.

For EP and cath labs, we bring dedicated equipment branch power, isolated grounding references, and precise coordination with the imaging gantry, hemodynamic systems, and boom-mounted displays. Our experience across multiple Puget Sound imaging and interventional projects means fewer field conflicts and a cleaner startup.

Most healthcare work happens in a live building with patients on the other side of the wall. H&M plans and executes to Infection Control Risk Assessment (ICRA) requirements, maintaining barriers, negative pressure, and clean routing so construction dust and activity never reach patient areas — and, where the work affects life-safety systems, to the facility's Interim Life Safety Measures (ILSM) so egress, alarm, and suppression coverage stay intact.

We sequence outages, temporary power, and cutovers with the facilities team so that critical branches are never dark, and we perform disruptive work in off-hours windows when a department can be safely taken down. Careful phasing is what lets a hospital keep operating while a wing, floor, or suite is rebuilt around it.