
HVAC controls and building automation
Good equipment with bad controls wastes energy and money. We install, upgrade and troubleshoot controls so your system does what it’s supposed to.
What we do
- New building automation systems for new construction and retrofits
- Replacing aging or unsupported controls
- Troubleshooting schedules, setpoints, sensors and sequences
- Thermostat and zoning upgrades for smaller buildings
- Getting trend data and energy data out of your system for compliance reporting
The short version
What are HVAC controls?
Controls tell your equipment when to run, how hard, and to what setpoint: thermostats, unit controllers, building automation systems, sensors, actuators and variable frequency drives (VFDs).
Why it matters
- Bad schedules and broken sensors are some of the most common causes of wasted energy
- Working controls keep comfort steady and equipment from short cycling
- Trend data supports Clean Buildings energy management plans
- Old, unsupported controls become a single point of failure
Who it’s for
- Owners with an aging or unsupported BAS
- Buildings with comfort complaints nobody can fix
- Restaurants with walk-in and kitchen exhaust controls
- Small buildings that need smart thermostats and scheduling
What we can do for you
- Plant and building controls replacements
- Thermostat, zoning and scheduling upgrades
- VFD troubleshooting and replacement
- Valve actuators, sensors and sequences
- Walk-in and refrigeration controllers
- Smoke control and fan interlocks
- Air balancing and damper setup alongside controls work
Work we’ve done
- Replacing a plant controls system on a Seattle waterfront building
- Mechanical work for a smoke control upgrade in Bellevue
- Fixed a dehumidifier that was reading mixed air by relocating its sensor
- Diagnosed a VFD fault on a restaurant extractor fan
- Replaced locked-out and failed thermostats in offices and shops
Real Omni jobs. We don’t name customers.
What we see most
Equipment running 24/7
Schedules lost after a power outage or never set. One of the cheapest fixes in a building.
Hot and cold complaints
Bad sensors, stuck dampers and valves, or sequences fighting each other.
Unsupported old controls
Panels nobody can program and parts that aren’t made anymore. We’ll lay out a replacement path.
Plant controls
Boiler and hydronic plant controls replaced and sequenced so the plant runs efficiently.
Data for compliance
Getting trend and energy data out of your system for Clean Buildings and BEPS reporting.
Smart thermostats
For smaller buildings, programmable thermostats and zoning go a long way.
Controls and compliance
Washington’s Clean Buildings law and Seattle’s BEPS both reward buildings that run efficiently. Fixing schedules and sequences is often the cheapest energy savings in a building. We’ll find it.
Our work






How it works
Call or send a request
Tell us the equipment, what it’s doing, and how urgent it is.
We come look
A field-experienced tech or estimator sees it in person. Most diagnostics take 30 minutes or less.
Straight price first
You get what’s wrong, what it takes, and what it costs before we start.
Done right, written up
We finish clean, test it, and leave a written record of what we did.
What our clients say
Common questions
Can you work with our existing controls system?
In most cases, yes. We’ll tell you whether yours is worth keeping or due for replacement.
Do you do controls on small buildings?
Yes. Smart thermostats, zoning and simple scheduling can make a big difference in small commercial spaces too.
Will a controls upgrade lower my energy bill?
Usually. Bad schedules and broken sensors are some of the most common causes of wasted energy we find.
What is a BAS or BMS?
A building automation system (BAS), also called a building management system (BMS), is the central control system that runs schedules, setpoints and sequences for HVAC equipment and lets you see what it’s doing.
Where we do this work
Ready when you are
Tell us what’s going on. We get back to you as fast as we can.
Licensed, bonded & insured · WA Contractor License OMNIMMI779PR · WA Electrical Contractor (HVAC/Refrigeration) EC OMNIMMI740OS · Commercial financing available

