Matrix Developments LLC.

The state lists Alexander Siekerman and Joshua Sumner as principals since 2026. Washington records the business under a single general contracting specialty rather than any specific trade, and the Idaho registration followed later the same year. Matrix Developments says it travels about 25 miles from its base, which covers Spokane, Spokane Valley, Liberty Lake, Mead, Cheney and Airway Heights on the Washington side. A crew this size suits smaller residential projects where the person bidding the job is the same person doing it. A general contracting registration is the right fit for coordinating and building, but it isn't a substitute for a licensed electrician, plumber or HVAC contractor on work that calls for one, so specialized trade jobs belong with a firm registered for that trade. Small fixes and big projects call for different hires. A door frame, a deck repair or a bit of drywall is a short visit, and a small general contractor can often fit it in quickly. A kitchen remodel or an addition in an older Spokane house is a different job: it usually needs permits, inspections and several trades lined up in order, and the contractor's job becomes scheduling as much as building. For larger work, ask who pulls the permit, which licensed subcontractors will handle electrical and plumbing, and how the crew's size affects the timeline. Those answers tell you whether a small shop or a bigger firm fits the job.