Commercial Property Energy Audits: Finding Savings You're Currently Paying For

Commercial energy audits identify opportunities to reduce operating costs and improve building performance.

Commercial Property Services

Commercial buildings are responsible for approximately 30% of energy consumption in Ontario. Energy audits identify where energy is being consumed, where it's being wasted, and where cost-effective improvements exist.

A Level 1 energy audit (walk-through audit) reviews utility bills and conducts a site inspection to identify obvious efficiency opportunities. This level is appropriate for initial screening of portfolio properties.

Key Considerations

A Level 2 energy audit provides engineering analysis of building systems and energy use patterns. It quantifies energy savings potential and payback periods for specific improvement measures.

Common high-ROI findings in commercial energy audits include: lighting replacement to LED, HVAC scheduling and control optimization, building envelope air sealing, and HVAC system upgrades.

The Building Envelope's Role in Energy Performance

Mechanical upgrades get the attention, but the envelope determines how hard the mechanicals work. Air leakage at deteriorated door seals, failed window glazing units, and unsealed penetrations routinely accounts for 10–25% of commercial heating loads in our climate — and unlike equipment upgrades, sealing work is cheap, fast, and invisible to tenants.

Doors are the envelope's highest-traffic failure point. Worn sweeps, sprung closers, and misaligned commercial doors leak conditioned air every minute of the business day; loading dock doors and seals are the industrial equivalent, with bigger openings and bigger losses.

Fogged or failed insulated glass units are both an energy and a presentation problem. A commercial window survey identifying failed IGUs feeds both the energy retrofit plan and the curb appeal budget — one inspection, two business cases.

Acting on Audit Findings

Rank findings by simple payback and execute in waves: no-cost operational fixes first (scheduling, setpoints, controls), then low-cost envelope sealing and lighting, then capital items like equipment replacement — each wave funding confidence in the next. Audits that go straight to the capital ask without harvesting the easy savings tend to die in the owner's inbox.

Verify savings against weather-normalized utility data, not raw bills. A mild winter can flatter a mediocre retrofit; normalization keeps the program honest and supports the next round of funding.

Tie the energy program into physical maintenance. Sealant replacement, door hardware service, and envelope repairs are energy measures that live naturally inside an exterior maintenance plan — and a periodic property assessment catches the envelope deterioration between formal energy audits, when it is still a tube of sealant rather than a remediation project.

Working With D&D Commercial

LED lighting replacement in commercial buildings consistently delivers the strongest payback — often under 3 years including equipment and installation. Utility incentives through Ontario's Save on Energy program reduce payback further.

HVAC control improvements — programming setbacks, recommissioning economizer controls, calibrating sensors — often deliver significant energy savings at low or no capital cost. These operational improvements are the highest-priority findings.

Ontario's energy reporting requirements under O. Reg. 506/18 (mandatory energy and water reporting for large buildings) create administrative obligations and public reporting that give energy management organizational visibility.

Devon Moore, Operations Lead Co-Founder & Operations Lead — D&D Commercial Services

Devon Moore is the co-founder and Operations Lead at D&D Commercial Services, delivering professional commercial property maintenance across Waterloo Region.