One system for every room, plant and meter in your building.

We design, install and support building automation that keeps people comfortable, cuts energy waste and gives your team a single place to see what is happening.

Demo: Level 2 control panelLive
Open office
Room temp 73°F
70°F
Idle
Meeting room 2.4
Room temp 72°F
72°F
Idle
Server room
Room temp 71°F
68°F
Idle
Estimated HVAC load0 kW
20+years in controls engineering and IT
350buildings under management
24/7remote monitoring and call-out
Up to 30%typical energy saving after tuning

Control what matters, from plant room to front door

Each building is different, so we scope the systems you need now and leave room to add more later without replacing what is already working.

Heating, cooling and ventilation

Controls for boilers, chillers, air handling units and fan coils, programmed around how your spaces are really used rather than a fixed timetable.

  • Occupancy and CO₂ based ventilation
  • Weather compensation and optimum start
  • Fault alerts before tenants complain

Energy and sub-metering

Track electricity, gas, water and heat by floor or tenant. Spot overnight waste, then prove the savings once it is fixed.

Lighting control

Daylight dimming, presence detection and scenes that staff can change from a wall panel or phone.

Government projects

Controls for municipal, state and federal facilities, delivered to public-sector procurement, cybersecurity and reporting requirements.

Remote monitoring

Our engineers see alarms and trends as they happen, fix many faults remotely and arrive on site with the right parts.

AI monitoring tools

Software that learns how each building normally behaves, then flags what is out of pattern so your team can act before comfort or equipment suffers.

  • Fault detection for stuck valves, drifting sensors and wasted runtime
  • Early warning on equipment likely to fail
  • Ranked alerts, so the costliest problems come first

Projects completed

A selection of buildings we have delivered controls for.

St Mary's Snow Logos

Building automation project

Henry Ford Hospital

Columbus, MI

Talon

Detroit, MI

Phina

Building automation project

Bostick

Building automation project

Horizon East

Building automation project

Horizon West

Building automation project

See our systems at work

Short films showing how we control, monitor and improve real buildings.

Open protocols, so you are never locked in

BACnetModbusKNXLonWorksM-BusMQTT

From first walk-round to handover

A clear path with a named engineer at every stage.

Survey

We walk the site, review drawings and existing controls, and agree what you want to achieve.

Design

You get a fixed scope, a points list and a clear price, with options priced separately.

Install and commission

We wire, program and test each system with minimal disruption to occupants.

Support

Training for your team, then planned maintenance, seasonal tuning and out-of-hours cover.

Built for buildings that cannot afford downtime

We work with owners, facilities teams and main contractors across these sectors.

Offices

Comfort that follows attendance, with tenant-level energy reporting.

Healthcare

Stable temperature, pressure and air change rates with full alarm history.

Education

Zoned schedules for term time, holidays and out-of-hours lettings.

Retail and leisure

Smart lighting and HVAC that adapt to footfall and opening hours.

Data and tech

Precise cooling control and early warning for critical rooms.

Industrial

Plant monitoring and process interfaces alongside building services.

Tell us about your building

Share a few details and an engineer will reply within one working day to arrange a survey.

Phone: +1 517 410 4920
Email: ganesh@grcsusa.com
Address: Add your office address here
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