Does a home energy audit in New Brunswick need to be done before and after insulation work to qualify for rebates?

Yes — for both the NB Power Total Home Energy Savings Program and the Canada Greener Homes Grant, a pre-retrofit EnerGuide evaluation must be completed before any insulation work begins. A post-retrofit evaluation is also required to confirm the improvements and unlock the rebate payment. If you start work before the pre-evaluation, you lose eligibility entirely — there is no exception to this rule.

How the Two-Evaluation Process Works

The EnerGuide evaluation is conducted by a Registered Energy Advisor (REA) certified by Natural Resources Canada. The advisor visits your home, performs a blower door test to measure air tightness (expressed in ACH50 — air changes per hour at 50 pascals of pressure), inspects your insulation levels, heating system, windows, and ventilation, and produces an EnerGuide rating for your home on a scale of 0 to 100. This pre-retrofit evaluation establishes your baseline — it is the legal starting point for both rebate programs.

After the insulation work is complete, the same advisor (or another REA) returns for the post-retrofit evaluation. They repeat the blower door test, verify the new insulation levels, and issue an updated EnerGuide rating. The improvement in your rating — combined with the specific upgrades completed — determines how much rebate money you receive. The bigger the improvement, the larger the rebate, up to the program maximums.

What Each Program Offers

NB Power Total Home Energy Savings Program offers rebates up to $5,000 for insulation upgrades. This is a provincial program administered through NB Power, and it covers attic, wall, basement, and crawl space insulation. The rebate amounts are tied to the specific measures installed and the improvement in your home's energy performance.

Canada Greener Homes Grant is a federal program offering grants up to $5,000 for eligible energy retrofits. It also requires pre- and post-retrofit EnerGuide evaluations. Critically, these two programs can be stacked — an NB homeowner who completes a comprehensive insulation upgrade can potentially receive $5,000 to $10,000 in combined rebates, which meaningfully offsets the project cost.

The EnerGuide evaluation itself typically costs $400-$600 in New Brunswick, but both programs provide a rebate on the evaluation cost as part of the overall incentive — so the out-of-pocket cost is often recovered.

The Sequence You Must Follow

Get your pre-retrofit EnerGuide evaluation scheduled and completed first. Then get your insulation quotes, choose your contractor, and complete the work. Then schedule the post-retrofit evaluation. Doing anything out of this order — particularly starting insulation before the pre-evaluation — disqualifies you from both programs with no recourse.

This matters a lot in NB because the average older home in Moncton, Fredericton, or Saint John built in the 1960s to 1980s typically has R-20 attic insulation, R-12 walls, and an uninsulated basement — and upgrading all three to modern code levels is a $15,000-$25,000 project. Leaving $5,000-$10,000 in rebates on the table because of a sequencing mistake is a costly error.

One Practical Note on Timing

NB winters are long, and many homeowners want insulation work done urgently when heating bills spike or they discover ice dams. Resist the urge to start work before the evaluation. A good energy advisor can often schedule a pre-retrofit evaluation within one to two weeks. The wait is worth it.

If you're ready to move forward, New Brunswick Insulation can match you with local insulation contractors who are familiar with the rebate process and can coordinate with your energy advisor. Browse insulation contractors through the New Brunswick Construction Network directory at newbrunswickconstructionnetwork.com/directory?category=insulation.