Retro-commissioning existing buildings is the systematic investigation of a building’s current mechanical performance, with corrective scope ranked by ROI. Retro-commissioning existing buildings typically returns 5-15% energy savings within the first year, against a fraction of the cost of equipment replacement.
How retro-commissioning existing buildings works
First, our agent walks the asset, meets with operations, and pulls trend data from the BAS. Then field work verifies sensor calibration, sequence behavior, and equipment performance. Additionally, every finding lands in a master issues log with priority, owner, and fix path.
When retro-commissioning existing buildings makes sense
Specifically, three triggers justify the work: an energy bill that climbs without a load change; recurring tenant complaints that PM cycles do not resolve; and a planned retrofit that needs a baseline before scope gets set. Furthermore, retro-commissioning existing buildings often saves money even when no retrofit is planned.
What retro-commissioning existing buildings delivers
Therefore, the deliverable is what owners use for years. Every page shows a tested value next to a target. Additionally, ENERGY STAR, ASHRAE 100, and most utility programs reward documented retro-commissioning existing buildings work.
When this work makes financial sense
Three building conditions justify the investment most clearly. First, an unexplained climb in the utility bill — typically 10-25% above prior-year baseline with no load change. Second, recurring tenant or operator complaints that PM cycles never fully resolve. Third, a planned capital retrofit that needs a baseline before scope and budget get set. ENERGY STAR Portfolio Manager scores often climb 10-30 points after this work, which raises asset valuation under most green-lease frameworks. Utility incentive programs (Georgia Power, Cobb EMC, Sawnee EMC) frequently cover 20-50% of project cost.
Talk to us about a project
Send the mechanical drawings and a schedule outline, and you will hear back within one business day with a fixed-price proposal.
Request a proposal Call 800-883-6040
Related reading
Want the full picture? See our pillar page on HVAC commissioning & retro-commissioning existing buildings.
