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Safe and Warm

From abatement to new insulation, we take care of everything.


Insulation and Home Comfort Specialist

We offer you smart and well-tried insulation products that will keep you warm.


Keeping Safety First and Foremost

Our respectful and competent team guides you through every step of the abatement process.


Precision Removal That Lasts

We keep your walls and surfaces clean inside and out.

O'Reilly Brothers: Your Trusted Insulation Contractors in Ottawa

If you want to add comfort to a residential or commercial property in Ottawa, one of the first things that you need to do is to get good-quality insulation installed. With decades of experience in this industry and a skilled team, O'Reilly Brothers offer solutions to all your insulation needs. We can insulate your basements and other moisture-prone areas at your home. If you are not sure what type of insulation is appropriate for your home, allow us to take charge. We provide spray foam, blown cellulose and sprayed fireproofing insulation services as well as perform abatement and removal tasks to protect your health. 

Insulation is a vital component of any property’s efficiency. Commercial businesses can’t afford to lose valuable money on wasted energy. Likewise, homeowners deserve reliable protection for their investments. Insulation not only makes your house energy-efficient but also saves energy costs.

What’s more? Our excellent services do not burn a hole in your pocket. This is because before we start any job, our team will have an honest and open discussion with you about your budget. This will help us to provide you with economical options that will keep you warm but will also respect your purse strings.

Adapted To Your Needs and Budget

Home insulation does not necessarily have to be very expensive. Our team helps you pick a time and budget to fit your situation. With these concerns out of the way, you can focus on more important things. Let us show you just how helpful we can be with our efficient services. We’ll worry about energy concerns so you don’t have to. Call us for a free estimate.

The O’Reilly Name

Since 1967, our family company has served countless business owners and residents with a variety of insulation needs. Whether you need abatement, contaminant removal or insulation contractors for your residential or commercial property, count on us to help you preserve your investment.

We pride ourselves on the quality care we offer our customers. With industry knowledge and the skills to provide you with services that perfectly fit your needs, our team can accomplish any insulation-related task.



At O'Reilly Brothers, we understand that commercial insulation is a vital component of your business's efficiency. Our team of insulation contractors in Ottawa provides a range of commercial insulation services, including spray foam insulation, blown cellulose insulation, and more, to help you save on energy costs and improve the comfort of your workplace. From new construction to retrofitting, we have the experience and knowledge to get the job done right the first time.



O'Reilly Brothers offers comprehensive residential insulation services to help you keep your home warm in the winter and cool in the summer. Our insulation contractors in Ottawa specialize in spray foam insulation, blown cellulose insulation, and other types of insulation to help you save on energy costs and reduce your carbon footprint. Our team will work with you to find the right solution for your home and budget, ensuring that you get the best results possible.



Proper insulation is essential for any property to ensure a comfortable living or working environment while also reducing energy bills. Here are some of the benefits of proper insulation:

  • Energy efficiency: Proper insulation reduces the amount of heat that escapes from a building during winter and keeps it cool during summer. This translates to reduced energy consumption and cost savings on energy bills.

  • Enhanced comfort: Proper insulation ensures that indoor temperatures are consistent and comfortable, regardless of the weather conditions outside. This means that you and your family or employees can stay warm during winter and cool during summer.

  • Noise reduction: Insulation can also act as a sound barrier, reducing the amount of outside noise that enters a property. This is particularly useful for commercial properties located near noisy streets or highways.

  • Improved indoor air quality: Insulation also prevents the infiltration of outdoor pollutants, such as dust, dirt, and allergens, into a building. This helps improve indoor air quality, which is especially beneficial for individuals with allergies or respiratory problems.

  • Increased property value: A well-insulated property is more valuable than one that isn't. Proper insulation can increase the resale value of a property, making it a worthwhile investment.

  • Environmental benefits: Insulation reduces energy consumption and, therefore, greenhouse gas emissions. By reducing energy use, proper insulation helps to mitigate climate change and preserve the environment for future generations.


Getting your home insulated can provide you with the above advantages and more if you get it done by professional insulation contractors like O'Reilly Brothers in Ottawa. Call us for all types of insulation needs today!


There are many advancements happening in the field of insulation. One of them is spray foam insulation. In addition to more standard insulation practices, O’Reilly Brothers is also your source for spray foam insulation in Ottawa. Sprayed polyurethane foam offers many advantages when compared to other practices. As it’s sprayed, it expands, filling the space around it creating an air-tight seal even in hard-to-reach places. It provides insulation and acts as a barrier against air and liquids, making it extremely energy efficient. Spray foam is very tough and can last years after it is applied.

Want to learn more about spray foam in Ottawa? Check out our spray foam FAQ page now! If you have any more questions, don’t hesitate to contact O’Reilly Brothers today!


In addition to our wide range of insulation services, we also offer a number of services to enhance the safety of your property. From insulation to abatement to removal, we can do it all. We work hard to update our industrial equipment and knowledge to protect your home, office, or business.

Families, employees, and properties all benefit from safe insulation services. Additionally, the tools that we use are eco-friendly. This means that when you opt for our services, you not only keep yourself safe but also play a pivotal role in saving the earth.

Good Insulation Makes Sense

The team working with us at our family business can provide you with a host of services designed specially to cater to the needs of Ottawa’s residents. Trusting us for your insulation needs has many advantages:

We’ll save you money, help the environment, and give you a healthier home.

We frequently upgrade our knowledge and equipment.

Our Service personnel are certified and safety trained.

We offer multiple insulation services for one-stop service.

We care. Customer satisfaction is our top mandate.

You can learn more about our insulation products or about the risks of certain insulation materials by consulting our FAQ. Count on us when you’re looking for insulation contractors in Ottawa.

Professional Affiliations

Ottawa Construction Association (OCA)

Better Business Bureau (BBB)

Urethane Foam Consultants (UFC)

Grants, Rebates, and Loans

If you're looking to take advantage of grants, rebates and/or loans there is typically at least one program going on.  Give us a call, and an estimator will be able to advise you on your option(s) or learn about what's currently available at the below links:

Home Efficiency Rebate (HER)




We had the pleasure to work with many wonderful clients. Here are some of their thoughts on our services.

Knowledgeable Crew


“I would like to pass on my thanks to your crew for the great work they did on insulating the attic at my house. It was great from start to finish, beginning with Chris Auger, whose advice and knowledge was greatly appreciated. Chris is the most helpful estimator possible and as the person with whom we had the most contact, his presence was invaluable.

This is the second time that we have had your company handle an insulation job for us and it’s worth noting that when other contractors – roofers, drywallers and carpenters etc. knew we were having O’Reilly for this job, their response was, “the best in the city”.”


Keith, Customer



We offer you smart and well-tried insulation products that will keep you warm.



Our respectful and competent team guides you through every step of the abatement process.



We keep your walls and surfaces clean inside and out.



Our team has put together a bunch of information about insulation and insulation services in Ottawa.

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