Best insulation companies in Greater Montreal

Customers generally praise Isolation Multi-Services for professional, high-quality insulation work at reasonable prices, but a notable minority report serious issues with customer service follow-ups, missed appointments, and unresolved installation problems.

Customers consistently praise EJA for their professionalism, attention to detail, and high-quality exterior cladding work, with Emir and Jeremie frequently noted for reliability and clear communication. One review raises concerns about material quality and management practices, but the overwhelming majority describe outstanding results and strong trust in the team.

Customers highly praise Isolation Smart Seal for their punctual, professional service and excellent results, particularly noting quick, clean installations and strong communication. A few reviewers mention isolated issues with customer service attitude and language barriers.

Customers overwhelmingly praise Isolation Solution Royal for professional, clean attic insulation work with transparent communication and fair pricing, though a small number of reviewers report post-payment follow-up issues and unmet contract terms.

Thermo Rad Inc. is highly regarded for fast, professional, and knowledgeable service, with particular praise for technician Jean-Philippe. A few customers have concerns about high pricing and occasional unprofessional experiences.

Most customers praise the professional, efficient installation and friendly crews, but a few report property damage, mess, and poor accountability.

Customers consistently praise Isolation Demrik for fast, courteous, professional service with honest advice and no sales pressure, though one review mentions a missed appointment with no follow-up call.

Customers consistently praise Expert Isolation for professional, high-quality insulation work delivered on time by courteous, knowledgeable staff, with one report of a missed appointment.

Customers overwhelmingly praise Eco Solution Canada for professional, high-quality roofing and insulation work led by Sasha and Emile, though one reviewer reported a serious reliability issue with a cancelled job and a questionable referral.

Customers consistently praise Isolam Inc. for professional, high-quality insulation work, punctuality, cleanliness, and honest, knowledgeable service with no surprise fees.

Customers consistently praise Isolation Secure for professional, high-quality insulation work that delivers noticeable comfort and energy savings, with many highlighting the courteous, thorough teams and fair pricing.

Customers consistently praise Metrotec / PGB Isolation for its professional, courteous, and efficient insulation work, with many long-term clients recommending the company without hesitation.

Customers rave about fast, high‑quality sealant work, friendly staff, and a solid warranty, though a few note missed appointments.

DuraClim is generally well-regarded for professional, courteous technicians and thorough cleaning work, but a notable minority of customers report serious issues including property damage, post-service leaks, messy work, billing errors, and poor follow-up when problems arise.

Customers consistently praise Vitrerie ABC for professional, pressure-free window and glass work with fair pricing, though a few reviewers report occasional communication or appointment reliability issues.

Customers generally praise the professionalism, courtesy, and efficiency of the teams, but some report significant problems with punctuality, communication, and inconsistent insulation workmanship.

Customers consistently praise Monsieur Calfeutrage for professional, precise, and clean caulking work at competitive prices, though one reviewer reported poor after-sales service when a leak was not resolved.

Customers generally praise the friendly, professional staff and quick loading, but many complain about long wait times, difficult truck access, and poor communication.

Nadeau Isolation is a Saint-Léonard facility valued for its professional, courteous staff and quick unloading, but it is a tight, challenging site for truckers with 53-foot trailers and has slow paperwork.

Customers are deeply divided: many praise professional, punctual technicians and effective solutions, while a significant portion report rude staff, repeated failed repairs, unprofessional conduct, and poor customer service.