Commercial HVAC · Controls · BAS

Peak performance.
Zero downtime.

Commercial HVAC and controls for Spokane and the Inland Northwest, with work across Washington, North Idaho, and Montana. We service all brands. Systems dialed in. Facilities that stay online.

Prompt Field response
All brands Service & install
BAS / DDC Controls integration
Calibrated for the facility
HeatingVentilationAir ConditioningControls BAS / DDCRetrofitCommissioningAll Brands HeatingVentilationAir ConditioningControls BAS / DDCRetrofitCommissioningAll Brands
What we do

Comprehensive HVAC solutions

Same core work that keeps commercial buildings running — service, install, retrofit, and controls — executed with a tighter, more technical posture.

01 / SERVICE

Service & Repair

Service and repair for all makes and models. Prompt response for commercial facilities to keep downtime short.

  • Rooftop units, boilers, chillers, VRV/VRF
  • Diagnostics, compressors, VFDs, pumps
  • Scheduled and priority commercial service
02 / BUILD

Installation & Retrofit

New system design, installation, and upgrades. Energy-efficient solutions tailored to the building, not a catalog page.

  • Design-assist and plan-and-spec install
  • Equipment replacement with minimal disruption
  • Refrigerant transitions and efficiency upgrades
03 / CONTROL

Controls & Automation

Building automation systems, DDC controls, and smart integration for maximum efficiency and comfort.

  • Multi-vendor DDC and building automation
  • VAV, AHU, plant sequences, graphics
  • Commissioning, troubleshooting, migrations
We service and install all major commercial HVAC and controls platforms — whatever is already in the building.
Optimum Mechanical Systems logo
The standard

Tuned systems. Measured results.

Optimum Mechanical Systems is a registered DBA in Washington, Idaho, and Montana. We deliver commercial HVAC and controls for facilities in the Spokane area and the Inland Northwest, with additional work across the three-state region. From routine maintenance to system overhauls and controls migrations, the work is built for uptime and long-term reliability.

Commercial focus

Office buildings, schools, hospitals, airports, and industrial sites — facilities where comfort and uptime are not optional.

All brands. No exceptions.

Technicians trained across major mechanical and controls platforms so existing equipment stays in the fight.

Energy that shows up on the bill

Modern controls, sequences, and efficient equipment that lower operating cost year after year — not just at startup.

PromptField response
AllMakes & models
BASMulti-vendor controls
WA · ID · MTRegistered to work
Where we work

Built for demanding facilities

Commercial specialists based in the Spokane area. Serving Washington, North Idaho, and Montana — service, install, and controls.

01

Education

K-12 and campus systems, VAV, unit ventilators, and controls that survive a school year.

02

Healthcare

Critical environments, pressure relationships, and equipment that cannot wait until Monday.

03

Aviation & civic

Airports, municipal buildings, and public projects with spec discipline and prevailing-wage literacy.

04

Industrial

Process spaces, plants, warehouses — mechanical and controls that keep production on schedule.

Dispatch

Ready to tighten the system

Free consultation or quote. Tell us the building, the equipment, and how soon it needs to run right.

Talk to a tech, not a script

Commercial HVAC, retrofit, and controls. Spokane and the Inland Northwest first, with coverage in Washington, North Idaho, and Montana.

RegionSpokane and the Inland Northwest · WA, ID & MT
Shop
Spokane-area location coming online. Call or email and we will meet you on site.
ResponsePrompt commercial service
Start the request
Opening a message to info@optimum-mech.com. If nothing pops up, email us directly.