Specialized contractor · RBQ 5839-3208-01 · APCHQ · IKO RoofPro 1 877 445-4610 · Financing available
Area · Montérégie

Insulation & roofing in Longueuil

Attic to roof: free detailed quote, grants handled for you, certified crews.

4.9 · 305 Google reviews 10 years of combined experience RBQ 5839-3208-01 Grants handled

On the South Shore, Longueuil's post-war housing stock benefits enormously from a roof redone by the book and an insulation upgrade.

From Old Longueuil to Saint-Hubert, the South Shore's post-war stock is aging: attics with settled wool, unsealed rim joists, tired shingles. A complete envelope upgrade radically changes comfort here, and the Hydro bill.

As a specialized insulation and roofing contractor, we serve Longueuil and the whole region (Montérégie): under-insulated attic, vermiculite to remove, roof at end of life. We take it all on, attic to roof, with a free detailed quote and your grants handled start to finish.

Our jobs in Longueuil

What we do in Longueuil attics

Taken from our installers' reports, job by job.

about1 in 11

of the attics we insulate needs the old insulation removed first

about1 in 6

of the attics we insulate needs decontamination first

Proportions based on our attic jobs in Longueuil. Every house is different: we measure everything on site.

Before and after

Attic before the work: old, compacted grey-beige loose-fill insulation with a grey flexible duct lying on it, between the roof trussesBefore
Attic after the work: a thick, even layer of pink blown-in fiberglass, with the same grey flexible duct rising out of itAfter
September 2026
Attic before the work: old pink batts, uneven and compressed, between the roof trussesBefore
Attic after the work: a thick, even layer of pale pink blown-in fiberglass between the roof trussesAfter
September 2026
Our services in Longueuil

Everything your home needs

From the attic to the roof, one specialist to protect and improve your property.

Grants

Grants in Longueuil: LogisVert and Rénoclimat

Up to $1,500 with Hydro-Québec's LogisVert, and we handle the applications for you, start to finish.

Hydro-Québec LogisVert
Hydro-Québec LogisVert

Up to $1,500 with LogisVert, and we file the application for you

Hydro-Québec's LogisVert program is the most popular insulation grant: up to $1,500 for owners of a house heated mainly with electricity, when the work combines roof insulation and air sealing, with no energy assessment required beforehand. At Toiture & Isolation Provinciale we don't just tell you about it: we fill out and submit the application on your behalf, from eligibility check to confirmation. You receive your reference number by email, zero paperwork on your end.

Complete application handled by our team
Rénoclimat
Rénoclimat program

Rénoclimat, mainly for a nearly empty attic

The Quebec government's Rénoclimat program pays up to $1,500 for the roof only if the insulation in place is R-12 or less ($750 or $250 above that). It requires an energy assessment before and after the work, by a recognized advisor. Our detailed reports are compliant and documented, and we support you at every step until approval.

Compliant reports · support at every step

Amounts, conditions, which one to pick: see our insulation grants guide.

Financing

And for the rest: from $17/month

Flexible financing with 3 months with no payments and no interest, so you can start your project right away. The grant arrives after the work. Subject to credit approval.

Get my detailed quote
How it works

Four steps, zero paperwork

From the assessment to the grant application, we take care of everything. You enjoy the result.

1

Visit within 24-48 h

Your request is taken care of within 5 minutes, and an expert comes in Longueuil within 24-48 h: inspection, measurements, photos: the real condition documented.

2

Quote handed over on the spot

A fixed-price contract, delivered at the end of the visit: scope described by square foot, products specified, one firm price. Zero waiting, zero surprises.

3

Certified work

Our accredited crews do the job cleanly, on the agreed schedule, and leave the site spotless.

4

Grant filed for you

We fill out and submit your LogisVert or Rénoclimat application. You receive your reference number by email, zero paperwork.

They trusted us

What our clients say

Hundreds of homeowners across Quebec put their trust in us.

Google Reviews
FAQ

Your questions in Longueuil

How much does attic insulation cost in Longueuil?

Every home is different. We come out to Longueuil, measure the existing insulation and you receive a free detailed fixed-price contract: scope by sq. ft., firm price, not a ballpark over the phone.

Do the grants apply in Longueuil?

Yes, anywhere in Quebec, if you own a house heated mainly with electricity: Hydro-Québec's LogisVert pays up to $1,500 for work that combines roof insulation and air sealing, with no prior assessment. Condos and plexes don't qualify. We check your eligibility and file the application for you.

Do you also replace roofs in Longueuil?

Yes. IKO RoofPro shingles and Soprema elastomeric membrane, coordinated with the insulation under one accountable contact.

Do you serve the area around Longueuil?

Yes, the whole region (Montérégie) and neighbouring municipalities. See the “nearby” section below.

A commercial or multi-unit building in Longueuil?

Building insulation with spray foam, flat roofs with elastomeric membrane, decontamination and code upgrades, a dedicated division, compliant and documented, with one accountable contact.

Multi-unit, commercial, industrial and institutional
Valid RBQ, CNESST and CCQ credentials, fully insured
End-of-work report and written warranties
See the commercial division
Nearby

Also near Longueuil

Ready to insulate your home in Longueuil?

Taken care of within 5 minutes, visit within 24-48 h, quote handed over on the spot, no pressure, no fees.

Get my detailed quote 1 877 445-4610