Calidus Mechanical, LLC.

Calidus Mechanical is a young outfit, formed in 2026, and the state puts the crew at one to three people, so the person quoting a furnace swap is likely the same one setting it. The state lists Steven Leist, Eric Morman and Justin Avey as principals. Beyond installs and repairs, the company says it handles system design and diagnostics, and it describes itself as family-owned with a dependable service guarantee. It lists residential, commercial and light industrial buildings among the places it works. This is a heating and cooling shop first. Homeowners in Spokane Valley or Liberty Lake replacing an aging furnace, adding central air, or chasing better indoor air will find that squarely in its lane. Although the registration is filed under electrical, the state's risk classes point to HVAC rather than wiring, so a new-construction electrical rough-in or heavy metal fabrication is a better fit for a different trade. Spokane-area winters are long and cold enough that a furnace failing in January is a real problem, and installers are busiest once the first hard freeze arrives. Late summer and early fall are the easier windows to replace a heating system or get a tune-up before demand peaks. Dry, hot stretches in July and August do the same for air conditioning, so spring is a good time to have cooling installed or checked. Wildfire smoke in recent summers has also made filtration and indoor air quality worth raising when a system is being sized or replaced.