Building Automation System Upgrades & Retrofits

Liable Controls specializes in BMS upgrading and retrofitting Building Automation Systems (BMS) to improve performance, reliability, and energy efficiency.

Many existing systems are outdated, difficult to maintain, or no longer supported. We provide modern solutions that extend system life without requiring a full replacement.

When to Upgrade Your BMS

Frequent system failures

Obsolete or unsupported hardware

Limited monitoring or visibility

High energy usage

Difficulty troubleshooting issues

No remote access capability

Our Upgrade Approach

  • Evaluate existing system and infrastructure
  • Identify reusable components
  • Replace outdated controllers and devices
  • Upgrade sensors and field equipment
  • Implement modern control strategies
  • Provide updated graphics and remote access

Benefits of a BMS Upgrade

  • Improved system reliability
  • Reduced maintenance costs
  • Better energy efficiency
  • Enhanced monitoring and alarms
  • Remote access with secure connections

Multi-Brand Experience

BMS upgrade and integrate systems from

Johnson Controls-Liable Building Energy HVAC Controls

Frequently Asked Questions

Yes. Most systems can be upgraded while reusing wiring, panels, and some field devices.

Project timelines vary depending on system size, but upgrades can often be phased to minimize disruption.

Yes. Upgrades typically reduce energy costs, improve reliability, and extend system life.

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