Commercial HVAC Incentives in Ontario: What to Check Before an Upgrade

A commercial HVAC upgrade should start with a clear picture of the building's needs, the available options and the cost of completing the work. Incentives and financing belong in that discussion early.

For Ontario building owners, several programs may support qualifying energy-efficiency projects. The right fit depends on the building, the proposed improvements and the savings they can deliver. Application timing also matters: an equipment order or signed contract can affect eligibility.

Here are three avenues to investigate before committing to a project.

1. Enbridge Gas: projects that reduce natural gas use

The Commercial Custom Retrofit Program supports eligible projects in the Enbridge Gas service area, including commercial, institutional and multi-residential buildings.

Potential improvements include building automation systems, ventilation and control upgrades, heat recovery and variable frequency drives. Incentives depend on calculated natural gas savings and program requirements.

Enbridge requires preapproval for Commercial Custom Retrofit projects. Speak with an Energy Solutions Advisor early to confirm eligibility, the applicable offer and the documentation required.

Before setting a budget, clarify which costs qualify. Enbridge's terms distinguish the incremental cost of the energy-efficient option from the cost of the entire project.

2. Save on Energy: projects that reduce electricity use

The Save on Energy Retrofit Program offers incentives for qualifying improvements that produce measurable electricity savings.

Its Prescriptive stream covers defined measures with set incentives. Its Custom stream addresses more complex projects assessed against actual operating conditions. Eligible measures include certain HVAC controls, chillers, heat pumps and variable frequency drives. The proposed equipment and application must satisfy the relevant requirements.

Timing deserves particular attention. The program requires an application and acceptance of its Participant Agreement before a binding commitment, such as issuing a purchase order or signing an installation contract.

The program's FAQs explain that work may begin after submission, before preapproval, at the applicant's risk. Waiting for preapproval provides greater certainty about eligibility and the expected incentive.

3. Retrofit financing for eligible buildings

Some projects need financing alongside an assessment of available incentives.

The Canada Infrastructure Bank's Building Retrofits Initiative provides financing for eligible projects that improve building efficiency and reduce emissions. Its scope includes privately owned commercial, industrial and multi-unit residential buildings.

For eligible multi-unit rental properties, CMHC's MLI Select offers mortgage loan insurance advantages based on qualifying commitments, including energy efficiency, affordability and accessibility.

These options require a financing discussion with the relevant provider or lender. Include borrowing costs, repayment obligations, qualification requirements and supporting assessments in the business case.

Build the project around the building

Before comparing offers, assemble the information needed to evaluate the work:

• Existing conditions: equipment inventory, service history, utility consumption and known operating problems.
• A clear scope: the equipment, controls, installation and commissioning work being proposed.
• Comparable options: what each option costs and what it is expected to improve.
• Program requirements: application dates, eligible costs, approval steps and evidence needed after completion.
• A practical schedule: procurement, access, shutdowns and documentation responsibilities.

Calculate the business case using confirmed assumptions. Show any incentive separately until its amount and conditions are established. Ask program representatives about combining funding sources rather than assuming every offer can be added together.

Plan your next HVAC investment

For building owners in Toronto, the GTA and Kingston, an early review can make the next capital decision easier to assess. RackAir's energy audits and analysis can help establish the building's operating needs and identify improvements to investigate.

Start with a clearly defined scope, then confirm which incentive or financing options fit that project.

Planning an HVAC upgrade? Contact RackAir to discuss your building, your equipment and the work you are considering.

Program information reviewed October 28, 2026. Confirm current eligibility, terms and availability with the relevant program administrator before making a commitment.