Trusted Insulation Contractors in Cornwall, ON

The highest-rated Spray Foam, Fiberglass & Cellulose Insulation companies out of 39 vetted & reviewed in the Cornwall area.

Spray-Tech Insulation

Spray-Tech Insulation

(17)
Polyurea Coatings, Insulation Removal, Spray Foam Flat Roofing
“The work was done just as advertised - in a very tight crawl space with very low ceilings and a tiny access port. The installation was done efficiently and there was no mess left behind - likely cleaner than it was found. Would highly recommended!”
In Business Since 2017
Free Initial Consultation
Serving Cornwall Area
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North Country Insulation Spray Foam

North Country Insulation Spray Foam

(9)
“Reputable and honest, excellent customer service! We have used this company multiple times and highly recommend North Country!”
Family Business
In Business Since 2021
Free Initial Consultation
Serving Cornwall Area
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Enviro-Tec Insulation

Enviro-Tec Insulation

(2)
“Very professional and did a thorough job in my cargo van. They even squeezed me in before the holidays - much appreciated!”
Serving Cornwall Area
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Tucker Construction Inc.

Tucker Construction Inc.

(15)
Residential
“We entrusted several projects small and large to Tucker Construction, they are on always time, on budget and professional! Shawn and Chris are all about the details and getting a job done right the first time, as a seasoned contractor myself of many ...”
Free Initial Consultation
In Business Since 2022
Family Business
Licensed
Serving Cornwall Area
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Decoste Construction Inc.

Decoste Construction Inc.

(1)
“Great workmanship with friendly competent staff. Easy to deal with and received updates on a regular basis and when requested. Addressed my concerns and proposing options that best suited my needs.”
In Business Since 2012
Free Initial Consultation
Serving Cornwall Area
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ACR Roofing Ottawa

ACR Roofing Ottawa

(50)
Insulation, Siding, Residential Roofing
“Hired ACR roofing to replace the shingles on my roof. They did a fantastic job, the roof looks great! Very knowledgeable and provided a quote in a timely manner. They removed an old leaking furnace exhaust and replaced the water damaged plywood. Woul...”
In Business Since 2020
Free Initial Consultation
2745 French Hill Rd, Ottawa, ON K4C 1L5
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Eric Dutton Insulation

Eric Dutton Insulation

(35)
Videos, Cellulose, Jobs
“The best insulation company in the region. Very professional and very courteous staff. They do incredible work at very competitive prices. I recommend.”
Free Initial Consultation
In Business Since 2015
Licensed
260 Rue Rodolphe-Besner, Vaudreuil-Dorion, Quebec J7V 8P2
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Markelangelo's Inc

Markelangelo's Inc

(48)
Ventilation Improvements, Attic Insulation, Roof Maintenance
“We have used Markelangelo's for both the replacement of our roof as well as moisture issues in our attic. They have been helpful, reliable and very professional. We are completely satisfied with their work and appreciate how diligent and considerat...”
In Business Since 2008
Serving Cornwall Area
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Foratech Isolation

Foratech Isolation

(40)
Insonorisation, Ignifugation, Isolation
“Saw their truck driving in our city and needed some work done. Called, received quote and work was completed quickly. Excellent suggestions, put up plastic to protect and they cleaned up after their sprayed the insulation. Recommend 100%! Positive...”
Licensed
Serving Cornwall Area
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Kluke's Roofing

Kluke's Roofing

(7)
Roof Snow & Ice Removal & Roof De-Icing, Shingles, Roof Repairs
“I had Klukes roofing install new steel shingles from Ideal roofing on my home. James and his crew did an excellant job. I would highly recommend this company. Positive Professionalism Services Roof installation”
Free Initial Consultation
In Business Since 2003
Family Business
Licensed, BBB Accredited
Serving Cornwall Area
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Execon Roofing and Solar

Execon Roofing and Solar

(22)
  • Questions
  • Electricity
  • Professional
“In the spring of 2021, we embarked on a project to install solar panels on our home. In keeping with our goals of minimizing our environmental footprint we wanted to generate our own electricity, but also stay connected to the grid as part of our bac...”
In Business Since 2012
Free Initial Consultation
Serving Cornwall Area
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Les Toitures Vallée & Fils

Les Toitures Vallée & Fils

(15)
Nettoyage de Gouttières, Entretien de Toiture, Installation de Toiture
“Excellent service and impeccable work, I recommend this family business. They are honest and give you the truth, I am very satisfied with my two roofs, a special thank you to Francois and his teammate!! You are the best!! Positive Punctuality, Profes...”
In Business Since 2012
Serving Cornwall Area
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Isolation C. Gill Valleyfield

Isolation C. Gill Valleyfield

(6)
Résidentiels, Industriels, Commerciaux, Agricoles et Institutionnels
“Simon gave me incredible advice and was very patient. Thank you”
In Business Since 2012
Licensed
695 Chem. Larocque Local 24, Salaberry-de-Valleyfield, QC J6T 6M6
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Paul Cuerrier Insulation Ltd

Paul Cuerrier Insulation Ltd

(5)
Spray Foam Insulation
“They will give you a warm and wooly feeling inside! Lol. Great team, great service, great prices!”
In Business Since 2009
Free Initial Consultation
Serving Cornwall Area
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Iso-Expert

Iso-Expert

(12)
  • Sympathetic
  • Work
  • Insulation
“Dburger had all its trucks done! Wow excellent work, professional and courteous service! Quite a businessman! I recommend to everyone without hesitation!!!”
Emergency Services
In Business Since 2019
Licensed
Serving Cornwall Area
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Couverture M L

Couverture M L

(3)
“Super professional thanks to Michel you are the best”
Licensed
59 Rue Saint-Philippe, Salaberry-de-Valleyfield, QC J6S 3G7
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Couvreurs Roofstarr Roofing Inc

Couvreurs Roofstarr Roofing Inc

(6)
Snow & Ice Removals, Roof Renovations & Re-Shingle, Inspections & Repairs
“These guys are amazing!! I highly recommend them. Andy and his team are exceptional workers they finished our roof, cleaned up and were done in one day!!!! Many Thanks Richard and Tammy”
Free Initial Consultation
In Business Since 2018
Licensed
Serving Cornwall Area
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Merkley Energy Solutions

Merkley Energy Solutions

(4)
“Very well informed gentleman. Very easy to work with.”
In Business Since 2009
Serving Cornwall Area
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Isolation Laurentides Inc.

Isolation Laurentides Inc.

(2)
“Excellent service! And fast ! I will definitely call them back for other jobs! Jeson is very professional. Follows up very well. Frederik is excellent at posing! Thank you! Positive Responsiveness, Quality, Professionalism, Value”
In Business Since 2013
Serving Cornwall Area
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Isolation Future

Isolation Future

(1)
“Best Sunday Ice Cream”
In Business Since 2019
Serving Cornwall Area
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Isolation Sud-Ouest

Isolation Sud-Ouest

(2)
“Great service, competitive price and really clean work!! Thank you for the beautiful work”
In Business Since 2014
Serving Cornwall Area
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Y. Rocque Construction Inc.

Y. Rocque Construction Inc.

(2)
“Mr. and Mrs. Meng would like to particularly thank Yves Rocque's company and these workers for the roofing project at 1634 Rue Lucien L'Orignal. It's a company that does good work, the workers are dynamic, friendly, as well as hardworking and very cl...”
In Business Since 2017
Serving Cornwall Area
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MRC Insulation & Waterproofing

MRC Insulation & Waterproofing

In Business Since 2021
Serving Cornwall Area
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Toiture & Rénovation Viau

Toiture & Rénovation Viau

(2)
  • Team
“Great service at a very reasonable price. We redid an attic, beautiful work and everything was clean after the work. I highly recommend this team! Positive Responsiveness, Punctuality, Quality, Professionalism, Value Services Roof repair”
31 Rue Albert, Salaberry-de-Valleyfield, QC J6S 4P1
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Insulation Services in Cornwall, ON Cost Estimates

Minimum cost
$669
Maximum cost
$4895
National Average
$2294
Avg Per Hour Rates
$92
$1440
$3312
Typical price range is based on 300 cost profiles
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Average Cost $2294
Minimum cost $669
Maximum cost $4895
Avg Per Hour Rates $92

Typical range $1440 to $3312 is based on 300 cost profiles.

Why these companies made our list

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