Best insulation companies in Greater Montreal

Les Couvertures A9 is widely praised for fast, honest, and high-quality insulation and roofing work, though a few customers report poor communication and unfulfilled scheduling commitments.

Customers consistently praise The Attic Army for professional, high-quality attic and asbestos removal work, fair pricing, and outstanding communication from owner Hamid and his team.

Confort Prestige receives strong praise for professional, attentive staff and high-quality installations, but a notable minority of customers report serious issues with after-sales service, poor finishing work, and unreturned communications.

Customers overwhelmingly praise RPM @ Home Team for professional, clean attic insulation work and responsive service, though a small number of reviewers report serious communication and warranty issues.

Customers are overwhelmingly pleased with Mon Confort's heat pump installation service, frequently praising the professionalism, courtesy, and expertise of the sales and installation teams. A small minority reported post-installation issues, but overall satisfaction remains very high.

Les Entreprises Kass Inc is overwhelmingly praised for its professional, high-quality insulation and attic work, with exceptional customer service and integrity. One serious complaint about a furnace installation and after-sales service stands out as an anomaly.

Customers consistently praise Climax Inc for fast, professional, and courteous installation of heating and cooling systems, with standout after-sales support and competitive pricing.

Customers consistently praise owner Jean-François for his honesty, deep insulation expertise, and thorough communication, along with competitive pricing and meticulous, clean workmanship.

Customers largely praise Systèmes Sous-sol Québec for professional, patient staff and high-quality basement waterproofing work, but a notable minority report pushy sales tactics, poor after-sales follow-up, and unmet scheduling commitments.

Customers consistently praise this company for its professional, reassuring service from initial contact through project completion, with particular recognition for staff availability, clear communication, and meticulous cleanup.

Customers overwhelmingly praise NeoClimat for professional, friendly service, fast and clean heat pump and insulation installations, and helpful support with subsidy applications. A small number of reviewers report serious issues with installation quality or contractor reliability.

EcoRenov is highly praised for professional, thorough asbestos/mold removal and attic insulation, with exceptional customer service and fair pricing. A small number of reviewers report unresolved post-work issues and aggressive billing responses.

Customers consistently praise Isolation Équinoxe Plus for professional, thorough insulation work—especially spray foam basement insulation—delivered by a friendly, meticulous owner and team at competitive prices, with many reviewers highly recommending them.

MAG-MTL Projets Inc. is highly regarded for effective noise-reduction window installations, with most customers reporting dramatic sound reduction and professional, courteous service. A few recurring concerns involve long-term durability of soundproof panels and post-warranty service costs.

Customers overwhelmingly praise Solution Isolation for professional, courteous staff who deliver quality insulation work and thorough cleanup. A few reviewers reported issues with inaccurate subsidy estimates, disorganized scheduling, and subcontracted sealing work.

Customers consistently praise EcoRenov for professional, efficient mold/asbestos remediation and insulation work, supported by outstanding communication and customer service from staff like Lorianne.

Customers consistently praise Isolation Toit for highly professional attic insulation, window and door caulking work, with excellent communication, competitive pricing, and meticulous cleanup. The team, especially Alexandru, is noted for being punctual, knowledgeable, and responsive, often exceeding expectations.

Climax Inc. is highly regarded for professional, efficient HVAC installations and outstanding after-sales service, though a few customers reported missed appointments and poor follow-up.

LG4 Isolation delivers fast, professional spray-foam installation with courteous, meticulous crews and competitive pricing, earning strong customer loyalty. However, a notable minority report rude or dismissive representatives, billing disputes, and occasional quality issues like missed insulation or post-work moisture problems.

Customers highly praise Denkaey MRM Renovation for meticulous, professional renovation work—especially bathrooms and basements—with strong communication, cleanliness, and reliability, though one reviewer reported serious issues with work quality and billing practices.