LogisVert Grant 2026: $1,500 for Roof Insulation and Caulking

Updated November 13, 2026, based on Hydro-Québec’s official LogisVert guide (version 1.10, September 15, 2026).

Do your windows let in cold air? Do you feel a draft near your electrical outlets or the attic hatch? Hydro-Québec pays $1,500 to homeowners who have their roof insulated and their home caulked under the LogisVert program. And if you combine this work with another measure, such as a heat pump, the total amount goes up by 5%.

The catch: the rules are strict, and many applications are refused because of an incomplete invoice or a missed item. In this guide, we explain exactly what Hydro-Québec requires, how to find out if your home qualifies, and how to put together an application that gets approved the first time.

Does the LogisVert program still exist in 2026?

Yes. LogisVert is Hydro-Québec’s residential grant program for energy efficiency work. The participation guide was updated on September 15, 2026 (version 1.10), and the program is still accepting applications.

A few recent changes to know about:

• The combined “heat pump + caulking” measure no longer exists. If you read elsewhere that you could get $140 per 1,000 BTU for a heat pump with caulking, that information is out of date. The heat pump is now a separate measure.
• The pool pump is being removed from the program on November 30, 2026.
• Hydro-Québec can change or end the program without notice. Always check the terms on logisvert.ca before signing a contract.

In short, be wary of articles promising “up to $8,000” or “$10,000” for caulking: those amounts don’t match the current rules.

The “Roof insulation and caulking work” measure: what Hydro-Québec requires

This is the only LogisVert measure that directly covers caulking. It has two parts, and both must be completed. If you only do the caulking, or only the insulation, you get nothing.

Part 1: roof insulation

• The roof must reach a minimum thermal resistance of RSI 8.8 (R-50) after the work.
• 100% of the roof area must be insulated (fibreglass wool or an equivalent material).
• The materials must not pose any health risk.

If your attic is already insulated to R-50 everywhere, the insulation part is a problem: the invoice must describe the work done and the new RSI or R-value. Have your attic assessed before you plan anything.

Part 2: caulking

The work must cover every spot where air leaks, plus each of the following items, whether or not they leak:

1. Windows
2. Exterior doors
3. Patio doors
4. Attic hatches
5. Range hoods
6. Bathroom fans
7. Electrical outlets
8. Fireplaces

This is where many applications get stuck. Caulking the windows alone, however well done, is not enough: the invoice must show that all eight items were treated.

What is not eligible

• Installing or replacing windows and doors. Replacing your windows is not caulking under the program.
• Work done by a company without the appropriate RBQ licence or not registered with the Registraire des entreprises du Québec.
• Caulking alone, without roof insulation.

The amount

Hydro-Québec pays $1,500 when all requirements are met. It’s a fixed amount: it doesn’t change with the size of the house or the cost of the work. However, the grant cannot exceed 100% of the cost of the work before taxes.

Is your home eligible?

For the roof insulation and caulking measure, check each condition:

• You are the owner (tenants are not eligible for this measure).
• It’s a house: single-family, semi-detached, row house, mobile home or cottage. Condos, multiplexes and apartment buildings are not eligible for this measure.
• Electricity is the main heating source.
• The house is in Québec, habitable year-round, and its construction is complete.
• You have never received this grant for this house (once per home).
• The work is done by RBQ-licensed companies registered with the Registraire des entreprises du Québec.

If you heat mainly with gas, oil or wood, this measure doesn’t apply. Other LogisVert measures, such as the heat pump, may still be relevant to you.

Combining measures: the 5% bonus

This is the part of the program few people take advantage of. If you submit at least two different measures in a single application, Hydro-Québec adds 5% to the total grant amount.

The conditions:

• The measures must be carried out in the same home.
• They must be grouped in a single application, submitted no later than 9 months after the first measure.
• Each measure must be accepted. If only one is approved after review, the bonus is lost.

Other LogisVert measures you can combine

Calculation example

An electrically heated single-family home has its roof insulated, its openings caulked and a cold-climate heat pump installed with a capacity of 24,000 BTU/h at –8°C:

The actual heat pump amount depends on its capacity at –8°C, shown on its spec sheet. Ask your installer for this number before signing.

The tip that makes a difference: even an induction range counts as a second measure. If you plan to replace yours in the coming months, include it in the same application as your caulking to get the 5%.

Documents and invoices: what gets an application refused

Most refusals come from incomplete supporting documents. Here’s what you need.

Proof of homeownership

• Your municipal tax bill, or the first page of your deed of sale.
• The name on the invoices must match a name on the proof of homeownership.

Caulking invoice

It must show:

• the invoice number and date;
• the date of the work;
• your name and the address of the work;
• the company name, its RBQ licence number and its GST and QST numbers;
• a detailed list of the caulking work done (all eight items must appear);
• the cost of the work.

Roof insulation invoice

Same information, plus:

• the material used;
• the new thermal resistance of the roof (RSI or R-value).

Keep in mind

• The invoices must show that they have been paid.
• An invoice that only says “house caulking” may be refused. Ask for the details.
• Keep before and after photos: they’re not required for this measure, but they protect you if Hydro-Québec has questions.

The application, step by step

1. Check your eligibility using the list in the section above.
2. Have your attic assessed to find out whether the insulation can reach R-50 over 100% of the area.
3. Get your quotes: caulking and insulation, each from an RBQ-licensed company.
4. Plan your other measures within a 9-month window to get the 5% bonus.
5. Have the work done and make sure all eight caulking items are covered.
6. Pay and get detailed, compliant invoices.
7. Create your profile at logisvert.ca and fill out the online form (applications sent by email or mail are not processed).
8. Upload your documents and submit the application.

After you apply

• If your file is incomplete, Hydro-Québec contacts you within about 20 business days.
• Processing takes 10 to 12 weeks from receipt of a complete file.
• Hydro-Québec may ask to visit your home within six months of the application to check the work.
• The grant is sent to you by cheque, to the address on your application.

To receive payment, Hydro-Québec also asks for your social insurance number (or a NEQ or QST number) to issue an RL-27 slip. A secure email explains how to send it.

Can you combine LogisVert with other programs?

The rule is simple: the same work cannot be subsidized twice. If you receive LogisVert for your caulking, you cannot claim another grant from Hydro-Québec or a government agency for that same work, and the reverse is also true.

Before applying elsewhere, compare the amounts and conditions of each program, then choose the best one for each type of work. Once the LogisVert grant is paid, you cannot pay it back to switch programs.

Is caulking worth it, even without a grant?

Let’s be honest: $1,500 doesn’t always cover the full cost of insulation and caulking. But good caulking remains one of the most cost-effective jobs on a house, with or without a grant:

• Fewer drafts near windows, doors and outlets.
• Less wasted heat: warm air that leaks out has to be replaced by cold air that must be heated.
• A more efficient heat pump: in an airtight house, it works less hard and holds the temperature better in extreme cold.
• Less water and insect infiltration around openings.
• A longer lifespan for your window and door frames.

If your home isn’t eligible for LogisVert (gas heating, condo, etc.), caulking is still an investment that pays off in comfort and energy savings. See how we handle caulking for doors and windows.

How Laplante Calfeutrage helps

Laplante Calfeutrage is a residential and commercial caulking contractor holding RBQ licence 5682-5383-01. We serve Montreal, Laval, the North Shore, the South Shore, Lanaudière and the Laurentians.

For a LogisVert application, we complete the entire caulking part required by Hydro-Québec, in a single visit:

Specifically, we offer:

• An inspection of your openings and every air leak.
• Caulking of all eight mandatory items, using professional sealants, plus any other spot where air gets through.
• An invoice that meets LogisVert requirements, with our RBQ licence, our tax numbers and a detailed list of every item treated. You don’t have to wonder whether something is missing from your file.
• Advice on grouping your measures (roof insulation, heat pump) to get the 5% bonus.

Plan now. Our schedule is full until winter. New projects are being booked for spring 2027, which gives you time to organize your other measures (insulation, heat pump) within the 9-month window.

Frequently asked questions

Get your free quote

Want to know if your home is eligible and what a complete LogisVert-compliant caulking job would cost? Projects are now being booked for spring 2027.

Laplante Calfeutrage · RBQ licence 5682-5383-01 · Montreal, Laval, North Shore, South Shore, Lanaudière, Laurentians

Sources

• Hydro-Québec, LogisVert Participation Guide for residential customers, version 1.10 (September 15, 2026)
• LogisVert program portal · Support: 1-833-396-1888
• Régie du bâtiment du Québec: check a licence

The amounts and conditions shown come from the official guide in effect on the update date. Hydro-Québec can change the program at any time: confirm the terms at logisvert.ca before starting your work.