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OReilly Brothers

Keep Your House Warm

O’Reilly Brothers offers you all sorts of insulation services.


Are you planning on having your home or business insulated with spray foam insulation in Ottawa? It is likely that you have encountered various forms of insulation for your home or business. Among the most technologically advanced methods of insulation is spray foam insulation, which is accessible to Ottawa residents. This method of insulation is extremely reliable as spray foam provides multiple layers of coverage that automatically fit the shape of your property.


For over 50 years, the team at O’Reilly Brothers has provided clients with the best products and installation methods. Effective insulation is something every home and shop deserves to have for comfortable summers and winters. So why should you settle for burning a hole in your pocket to have your premises insulated? Our lightweight, high-quality spray foam insulation in Ottawa comes at great prices and works well for areas in your house or office that demand large coverage. Best of all, this kind of foam yields one of the longest lifespans in the industry, and who wouldn’t want that? Get in touch with us today to have your home insulated with our energy-efficient spray foam insulation in Ottawa.


Since 1967, we have offered spray foam insulation services in Ottawa and other locations. As a result, we are among the numerous trustworthy and dependable insulation providers available. We have almost 10,000 happy customers - what's stopping you from being one of them? Take a look at our insulation services today.


Polyurethane spray foam is a versatile insulation material that is widely used in construction and other industries. It is a two-component system that consists of an isocyanate component and a polyol resin component. When these two components are mixed together, a chemical reaction occurs, resulting in the expansion and curing of the foam.


The application process involves spraying the mixed components onto the desired surface using specialized equipment. As the foam is sprayed, it expands rapidly, filling gaps, cracks, and cavities to create a seamless and airtight insulation layer. The foam adheres to most surfaces, including wood, metal, concrete, and more, providing excellent thermal insulation and air sealing properties.

One of the key advantages of polyurethane spray foam is its ability to expand and conform to irregular shapes and surfaces. This allows for precise application and coverage, ensuring maximum insulation performance. The foam hardens within a short period, typically within minutes, and forms a durable and long-lasting insulation barrier.

Undoubtedly, spray foam insulation in Ottawa comes with many features that make it the preferred choice for the residents of Ottawa and the surrounding regions. Some of the most useful characteristics of spray foam insulation for your Ottawa home include:

  • Material rigidity: Spray foam insulation is one of the strongest, most durable types of insulation - retaining its original shape and effectiveness, even decades later.

  • Closed cellular structure: This gives your insulation a higher R-value and can also help keep that annoying moisture out.

  • Lightweight foam: It is easier to install and handle.

  • Seamless application: Spray foam lets you insulate your home more easily, even in the most hard-to-reach areas.

  • Complete foam coverage: With traditional insulation, you have to compromise with not being able to cover all the spots in your structure. Spray foam lets you insulate your entire home or business easily and non-intrusively.

To learn more about the benefits and applications of polyurethane spray foam insulation, contact our team of experts for professional advice and assistance.



By now, you may have noticed that spray foam insulation offers numerous advantages compared to other products like fibreglass and cellulose. Here's a closer look at why it's a great choice for insulating your home.

  • Lower energy use and cost: After installing polyurethane spray foam insulation, buildings are able to maintain consistent temperatures throughout the year, whether it's hot or cold outside. This results in lower energy bills and the creation of a protective air barrier in areas such as attics, walls, and floors.
  • Versatile: This product can be used for both interior and exterior spaces. It allows more flexibility in creative design while maximizing the interior area.
  • Reduces noise: As there are no openings and cracks, outside noise is reduced. This is thanks to the closed cellular structure we took a look at earlier. This particular feature makes your house more peaceful and private.
  • Strengthens your home/business: Many people are not aware that spray foam contains highly adhesive materials that can enhance the strength of a structure. This is particularly useful in areas where different building materials meet.
  • Reduced carbon footprint: Taking a look at the bigger picture, the level of insulation provided by spray foam helps you save a lot of money on energy. This directly helps the environment by reducing your dependence on heating and cooling devices.

Get in touch with us today to insulate your home with our trustworthy spray foam insulation service in Ottawa.




Check out some of our frequently asked questions about spray foam insulation in Ottawa.


Can I Install Spray Foam Insulation Myself?

While the installation is possible, it is not advisable. The polyurethane spray foam insulation process requires expensive equipment, thorough knowledge of the installation process, and trained and licensed contractors. Our staff have the necessary training and protective gear to apply spray foam insulation.

Can I stay at home when polyurethane spray foam insulation is installed?
Spray foam insulation undergoes a number of chemical reactions during the installation process. As a result of these, a number of gases are released. You must consult your contractor before you and your family can enter your home during and following installation.

What should be done if I smell odor after the insulation is done?
Get in touch with the team of experts at O’Reilly Brothers if you have concerns about the odour and/or if the odour persists.


Is spray foam insulation safe?

Yes. Spray foam is safe. Certain individuals may smell the fumes during the installation process. This is called off-gassing, and this is why it’s recommended that the inhabitants leave the house for at least 12-24 hours after the spraying is complete. After the foam has had a chance to totally off-gas, the house will be perfectly safe to live in.


How much does spray foam insulation cost?

Spray foam insulation costs twice as much as typical fibreglass insulation, but there are a variety of factors that influence the cost. Spray foam work will cost more or less depending on the scale of the job, the kind of foam being sprayed, whether or not it needs the removal of existing insulation, and many other factors. As us about getting an accurate price estimate.

Can Spray Foam Insulation Cause Allergic Reactions?

Spray foam insulation is generally considered safe and does not typically cause allergic reactions. However, some individuals with specific sensitivities or allergies may experience mild respiratory irritation or discomfort during the installation process due to the release of fumes. It is important to discuss any allergies or sensitivities with your contractor beforehand to ensure proper precautions are taken.

Is Spray Foam Insulation Effective in Extreme Temperatures?

Yes, spray foam insulation is highly effective in extreme temperatures. It acts as a barrier against heat transfer, helping to keep your home warm in the winter and cool in the summer. Its superior insulation properties and air-sealing capabilities make it an ideal choice for both hot and cold climates.

Does Spray Foam Insulation Prevent Mold and Moisture Issues?

Spray foam insulation has moisture-resistant properties that can help prevent mold growth and moisture-related issues. The foam creates an airtight seal, reducing the entry of moisture into your home. However, proper installation is crucial to ensure the effectiveness of moisture prevention. It is important to address any existing moisture issues before installing spray foam insulation.

If you have additional questions, please check out our frequently asked questions page. If you still can't find the information you need, don't hesitate to reach out to us in Ottawa. We are happy to assist you.



Upgrading your insulation to spray foam has numerous advantages. Ottawa residents and business owners can call us to learn more about spray foam insulation in Ottawa or any of our other services such as asbestos removal, mould, and lead removal. O’Reilly Brothers has the experience and the expertise to insulate your home, keeping you comfortable while saving you money.

For more information, you can also fill out our online form, and we will get back to you.



Being in the industry since 1967 has made us acquainted with all forms of insulations including spray foam and more. For more than 50 years, our thriving company has developed substantially, extending our services, modernizing our equipment, and training our employees. O'Reilly Brothers boast a proven track record in project management, with an increasing number of contented customers both domestically and abroad. Our loyal clientele put their trust in our abilities and frequently recommend us to others.


Looking for energy-efficient spray foam insulation in Ottawa? Choose O'Reilly Brothers. With over 50 years of experience, we provide top-quality products and installation methods. Our spray foam insulation conforms to your property's shape, ensuring optimal coverage. Stay comfortable year-round and save on energy costs. Contact us today to have your home insulated with our reliable spray foam insulation in Ottawa. Upgrade your insulation with O'Reilly Brothers.

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