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Yes, a grant can pay up to 50% of a foundation repair in Montreal: the City’s RénoPlex program subsidizes buildings with 1 to 5 dwellings, capped at $20,000 for a single-family home and $40,000 for a plex. Outside Montreal, the closest help is RénoRégion, which can cover up to 95% of the work (capped at $20,000) for low-income households in rural areas. Beyond that, there is the home equity line of credit, which lets you borrow up to 65% of your home’s value, and insurance, which covers only certain kinds of water damage.

These figures come from the City of Montreal, the Quebec government and the Financial Consumer Agency of Canada, and were checked in October 2026. Programs change: always confirm amounts with the organization before signing a contract. Here is how each option works, what it requires, and which trap to avoid.

Is There a Grant for Foundation Repair in Montreal?

Yes. RénoPlex, the City of Montreal’s program, subsidizes foundation work on buildings with 1 to 5 dwellings. The grant cannot exceed 50% of the actual cost of eligible work, with a minimum of $3,000 and a maximum of $20,000 for a single-family home or $40,000 for a building with 2 to 5 dwellings.

According to the program page (in French, updated June 19, 2026), owners of 1 to 5 dwellings in Montreal can apply online. The building’s property value must not exceed $3,860 per square metre to access blocks 1 and 3, and the City provides a tool to calculate that value. The $20,000 and $40,000 caps are published on the City’s pages for component 1 (single-family home) and component 2 (2 to 5 dwellings) (in French). The City also sets an amount for each type of work, which makes the grant predictable:

These amounts come from the City’s page on RénoPlex grant amounts per type of work (updated August 18, 2026). As an illustration, for a foundation with a 40 m perimeter, excavation (40 × $190), waterproofing (40 × $80) and a new French drain (40 × $60) give $7,600 + $3,200 + $2,400, or $13,200. That figure is only reached if the work costs at least $26,400, since the grant is limited to 50% of actual cost. This is an illustrative calculation, not a promise: the City confirms the final amount.

Two City rules prevent unpleasant surprises. First, the City requires you to wait until your application is confirmed as accepted before starting the work. Second, borough permits are mandatory. Allow 3 to 4 months for the answer, then 18 months to complete the work after conditional approval.

What Help Exists Outside Montreal?

RénoRégion, from the Société d’habitation du Québec, helps low-income owner-occupants in rural areas. It covers up to 95% of the recognized cost, capped at $20,000 ($25,000 for the lowest-income households), for work of at least $3,500 that corrects major defects.

The conditions, published on the program page (updated July 31, 2026; in French), are strict. The home must be your principal residence, its value cannot exceed $150,000, and the gap between household income and the applicable income level cannot exceed $12,000. Above all, the territory is limited to municipalities with fewer than 15,000 inhabitants, the Gaspé region and the Magdalen Islands, and areas not served by water mains or sewers in larger municipalities. Montreal, Laval and Longueuil are therefore generally not eligible. Structural work is among the eligible categories: ask your MRC whether your foundation repair qualifies.

Two other leads are worth a phone call. Cities like Laval or Longueuil may run their own programs: ask your city’s housing department. And after a flood recognized by the government, financial assistance for disaster victims may apply to your principal residence, including when water gets in through infiltration in the wake of the flood. It does not replace insurance: contact your insurer first. On the tax side, the situation depends on your file (principal residence, rental building, etc.): ask your accountant or Revenu Québec how to treat the expense and whether a credit applies in your case.

Does Home Insurance Pay for Foundation Repair?

Sometimes. According to CAA-Québec, some water damage is covered and some is not, and you should notify your home insurer as soon as possible. Your policy, more than the type of damage, settles it.

Take photos of the damage before any intervention and read your policy before getting repairs done. Our article on foundation repairs and home insurance in Quebec explains what is generally covered and what is not.

Can You Pay for the Work With a Home Equity Line of Credit?

Yes, if you have enough equity in the home. According to the Financial Consumer Agency of Canada (FCAC), a home equity line of credit lets you borrow up to 65% of your home’s value. You need at least 20% equity for a line combined with a mortgage, and more than 35% for a standalone line.

The rate is usually variable: the FCAC gives the example of the lender’s prime rate plus 1%, and it can change at any time. The risks are real since, as the agency points out, if you don’t repay the line, you could lose your home. Also plan for appraisal fees and legal fees. This option suits large projects that neither RénoPlex nor RénoRégion cover in full, as long as you can keep repaying if rates go up.

Which Option Should You Choose?

Start with the grant if you qualify, since it doesn’t have to be repaid, then fill the gap with insurance or a line of credit. Here are the four options side by side:

How Much Should You Budget, and How Do You Avoid Losing Aid?

According to CAA-Québec, sealing simple cracks from the inside costs between a few hundred and a few thousand dollars, while exposing the foundation, installing a membrane or repairing a drain can reach several thousand, even tens of thousands of dollars. The cost climbs with delay, as explained in the real cost of ignoring foundation problems.

Four habits protect your application. Document the damage with dated photos, since RénoPlex asks for photos of the elements concerned. Get written quotes from authorized contractors, which RénoRégion requires. Check the contractor’s RBQ license. And don’t start any major work before approval, except for emergency measures discussed with the organization.

Marco Réparation de Fondation visits in person for every estimate and every job site inspection. The company holds a valid license from the Régie du bâtiment du Québec (RBQ No. 5775-3246-01) and serves Montreal, Laval, the South Shore (including Longueuil and Brossard), the West Island and Salaberry-de-Valleyfield. See what to expect during an inspection, or learn to judge how serious a crack is before planning your budget.

Need an inspection to support an application?Contact Marco Réparation de Fondation for a free inspection and an honest opinion on the real cause and the urgency of the work.

Frequently Asked Questions

How long does RénoPlex take to respond, and how long do you have to do the work?

The City asks you to allow 3 to 4 months for confirmation of your application. Once you receive conditional approval, you have 18 months to complete the work.

Does RénoRégion apply in Montreal, Laval or Longueuil?

Generally not. The program targets municipalities with fewer than 15,000 inhabitants, the Gaspé region and the Magdalen Islands, and areas not served by water mains or sewers in larger municipalities.

What if the infiltration is urgent and the answer hasn’t arrived?

The City requires you to wait for confirmation before starting the work. If the situation can’t wait, contact the City’s housing department before you begin, protect what can be protected and keep dated photos, rather than launching major work without having spoken to anyone.