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Best insulation companies

Looking for the best insulation companies? We rank insulation companies on verified customer reviews and the Prix Excellence Client award, so you can choose with confidence, not guesswork.

91
Insulation companies
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Winners
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Mentions
4.7
Avg. rating
  1. Nadeau Isolation

    Nadeau Isolation

    3.843 reviews
    Saint-Leonard
    5% review reply rate9 years of activity on Google

    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.

    54/100

    InputKit score

  2. Pro Énergie Tech inc.

    Pro Énergie Tech inc.

    4.823 reviews
    Lac-Mégantic
    4% review reply rate9 years of activity on Google

    Customers consistently praise Pro Énergie Tech for fast, professional, and courteous service, with technicians often arriving the same day and clearly explaining their work.

    53/100

    InputKit score

  3. Ventilation Volmair Inc.

    Ventilation Volmair Inc.

    3.540 reviews
    Mirabel
    8 years of activity on Google

    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.

    53/100

    InputKit score

  4. Isolation Anacam Inc

    Isolation Anacam Inc

    4.946 reviews
    Saint-Jean-sur-Richelieu
    52% review reply rate

    Customers rave about Isolation Anacam’s courteous, family‑run crew, clear communication, quick and tidy installations, and fair prices.

    58/100

    InputKit score

  5. Climat-ISO

    Climat-ISO

    3.920 reviews
    Blainville
    4 years of activity on Google

    Customers generally praise the team's professionalism, communication, and heat-pump service, but a few report serious issues with high-pressure sales tactics and unprofessional behavior from some representatives.

    52/100

    InputKit score

  6. Prévention Isolation

    Prévention Isolation

    4.353 reviews
    Boucherville
    6% review reply rate2 years of activity on Google

    Prévention Isolation is widely praised for professional, efficient insulation work and outstanding customer service, but a minority of customers report serious issues with follow-up, reliability, and incomplete work.

    52/100

    InputKit score

  7. IsoTrust

    IsoTrust

    5.023 reviews
    Boucherville

    Customers consistently praise IsoTrust for professional, efficient attic insulation and sealing work, highlighting courteous staff, thorough communication, and helpful guidance on available subsidies.

    51/100

    InputKit score

  8. A1 isolation - Varennes

    A1 isolation - Varennes

    4.731 reviews
    Varennes
    10% review reply rate

    Customers praise A1 Isolation for its professionalism, clear pricing and high‑quality foam work, though a few note occasional scheduling hiccups.

    54/100

    InputKit score

  9. Abri Spec

    Abri Spec

    4.420 reviews
    Gatineau
    2 years of activity on Google

    Abri Spec is widely praised for professional, knowledgeable, and courteous work across insulation, renovation, and water-damage projects, but a few customers report serious issues with communication, delays, and rude conduct from the owner.

    50/100

    InputKit score

  10. Aluma Systems (Industrial Services)

    Aluma Systems (Industrial Services)

    4.057 reviews
    Laval

    Customers like the friendly staff and quick loading, but many complain about slow service and one problematic driver.

    53/100

    InputKit score

  11. Dispro Inc

    Dispro Inc

    4.057 reviews
    Anjou

    Customers praise the friendly staff and quick unloads when docks work, but many complain about poor dock layout and long wait times.

    53/100

    InputKit score

How we rank insulation companies

Rankings combine verified Google reviews, InputKit membership, NPS, CSAT, review reply rate, recovery time, and the InputKit Prix Excellence Client award, built on 12 months of real customer-experience data. Businesses can't pay to rank higher.

Understanding the ranking process →

Frequently asked questions

How are best insulation companies ranked?
We combine verified Google reviews, InputKit membership, NPS, CSAT, review reply rate, recovery time, and the InputKit Prix Excellence Client award, using 12 months of real customer-experience data. Position on this list cannot be bought.
How many insulation companies are on this ranking?
This page currently ranks 91 insulation companies that meet our guide visibility criteria. The list updates as reviews and award data change.
Can a business pay to rank higher?
No. Advertising or sponsorship does not change ranking position or Prix Excellence Client eligibility.
Where does the data come from?
Public Google review signals plus InputKit customer-experience data (including CSAT, NPS, and recovery) collected over the last 12 months.