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Commercial Custom Retrofit Program

Reduce energy costs faster with incentives for high-efficiency upgrades

The Commercial Custom Program helps you cut energy costs and boost comfort with generous incentives for high-efficiency upgrades. Whether you're retrofitting HVAC systems or optimizing controls, we’ll support your project every step of the way—so you can reduce emissions, improve performance, and see faster payback.

Types of retrofit projects

Building automation systems

Ventilation equipment and control upgrades

Boiler optimization

Heat recovery

Steam system efficiency enhancements

Learn about our 2025 Energy Conservation Programs

Download brochure

Incentives for custom retrofit projects

Standard custom retrofit incentives

$0.25/m3 for natural gas saved up to 50% of project upgrade costs, to a maximum of $100,000 per project!*


Standard custom retrofit incentives for institutional customers*

Get incentives up to $500,000 per project, up to 50% of project upgrade costs.

Get 0.25/m3 for the first 400,000 m3 of natural gas saved and $0.10/m3 for each m3 beyond 400,000 m3 saved.

Get up to 4X incentives for controls projects

Looking to add energy-efficient controls on your heating equipment or additional functionality to your existing control system? These incentives are for you. Eligible projects must involve equipment upgrade costs rather than repairs or replacement.

For institutional demand control ventilation (DCV) projects, please contact your Energy Solutions Advisor for eligibility criteria. 

Incentive Details
Enhanced incentive: Controls projects get incentives of $0.50/m3 for natural gas saved up to 50 percent of project upgrade costs, up to a maximum of $100,000 per project

Projects must be installed with required documentation submitted by Oct. 31, 2025
Controls bonus offer: Controls projects completed by Aug. 31, 2025 can access higher incentives! Get incentives of $1.00/m3 for natural gas saved up to 50 percent of project upgrade costs, up to a maximum of $100,000 per project.

Projects must be installed with required documentation submitted by Aug. 31, 2025

Is your project eligible?

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    Commercial buildings such as business, multi-unit residential, educational and institutional buildings.

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    Located in the Enbridge Gas service area, including areas previously served by Union Gas.

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    Project eligibility must first be confirmed by an Enbridge Gas Energy Solutions Advisor.

Why work with us?

From start to finish, our Energy Solutions Advisors are by your side. They’ll help you uncover energy-saving opportunities, calculate your potential savings, and secure incentives to make upgrading to high-efficiency equipment more affordable.

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    Free expert guidance from start to finish.

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    Identify and prioritize your energy-saving opportunities.

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    Translate upgrades into measurable cost and energy savings.*

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    Get hands-on support with incentive applications and documentation.

Success story

CLV Group / InterRent REIT prioritizes energy efficiency to lower operating costs

Ottawa-based CLV Group / InterRent REIT manages more than 10,000 residential rental units across Ontario and Quebec. With a Building Automation System (BAS) upgrade at their Burlington multi-unit residential tower, they’re able to maximize energy efficiency, reduce natural gas costs, improve resident comfort and make it easier for facilities staff to troubleshoot after-hours issues remotely.

$9,250
Enbridge Gas incentive

$22,140
annual natural gas savings

5 months
payback

Read the success story

How the program works

Number 1

Project scoping stage

Contact your Energy Services Advisor (ESA) early in the project planning stage to have your project pre-qualified and maximize the incentives available to you. We’ll estimate natural gas savings based on the project details and provide an incentive quote. If you haven’t already worked with an ESA, you’ll be provided with one for support every step of the way, at no additional cost.

Number 2

Purchase order stage

Contact your ESA and provide a copy of the purchase order. Submit required technical inputs with an estimated date of installation.

Number 3

Project Installation

After the energy efficiency upgrade is installed and in service, your ESA will confirm final project details through a site inspection and/or by requesting a copy of the project invoice.

Number 4

Incentive payment

Submit all required paperwork and receive your incentive cheque in 4 – 6 weeks. An independent evaluator may reach out to verify project details and your experience with the program.

Connect with an Energy Solutions Advisor

We’ll help you find ongoing savings and get your project underway.



Are you an affordable housing provider?

The Affordable Housing Multi - Residential program provides incentives for eligible energy-efficient upgrades in social, affordable and market-rate multi-family buildings.

* Institutional customers include universities, colleges, hospitals, military bases and district energy providers.

Terms and Conditions: 
Contact an Enbridge Gas Energy Solutions Advisor to confirm your project’s eligibility. All Commercial Custom Retrofit projects must be pre-approved by Enbridge Gas to qualify for incentives. HST will not be included in incentive payments. Incentives are only made available to customers where Enbridge Gas energy efficiency offer(s) have impacted the customer’s decision to proceed with the improvement(s). Incentive cannot exceed 50 percent of the energy efficiency upgrade costs (‘upgrade costs’ refer to the difference between the equipment and implementation costs of the energy-efficient option and those of the alternate option considered), to a maximum of $100,000 per project (for institutional customers, to a maximum of $500,000 per project). For all Enbridge Gas special offers/campaigns for commercial customers, please refer to the special offer/campaign terms and conditions for eligibility criteria, incentive rate and incentive maximum. To receive an incentive, a completed 2025 Commercial Custom application form and proof of purchase matched to installation address must be provided to Enbridge Gas. Incentive offers are available between Jan. 1, 2025 and Oct. 31, 2025.

Commercial controls offer is available to all Enbridge Gas commercial customers. For institutional demand control ventilation (DCV) projects, please contact your Energy Solutions Advisor for eligibility criteria. Incentives are calculated based on natural gas savings ($/m3 rate), up to 50 percent of energy efficiency upgrade costs, to a maximum of $100,000 per project. To qualify for $0.50/m3, equipment must be installed and submitted with required documentation by Oct. 31, 2025. To qualify for the bonus rate of $1.00/m3, equipment must be installed and submitted with required documentation by Aug. 31, 2025. "Installed" indicates that the upgrade is operational and functioning as expected. Incentive offers are subject to change based on budget availability. 

Disclaimers:
Any references to energy savings is based on the assumption that the participant is reducing their natural gas consumption through participation in the Commercial Custom Program. The savings claim for the featured case study is provided for informational purposes only and is based on estimated natural gas savings of 73,802 at $0.30/m3. These projections are specific to this example, and actual savings may vary for each project.

Any references to Greenhouse Gas Emissions (GHG) reductions are based on the assumption that participation in the Commercial Custom program results in reduced natural gas consumption. Enbridge Gas does not make any claims regarding the specific amount of GHG reductions achieved.