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At O'Reilly Brothers, we do everything to do with insulation. Whether you want to insulate your residential property or remove contaminated insulation from your office, we can help. What sets us apart is that we approach every client's needs with a different perspective. We take the time to understand your requirements and provide insulation solutions that meet your needs. Since our inception, we've continued to offer the area's residents the latest insulation solutions.

We can work on all properties and offer endless insulation options. Besides insulation, we can help you with abatement and removal services.

Please contact us if you'd like to work with or for our insulation company in Ottawa.



When selecting an insulation company, your choice is crucial. In Ottawa, O’Reilly Brothers is your trusted partner, offering decades of experience and unparalleled expertise to guide you through every step of the process.


Founded in 1967 by Richard O’Reilly in Ottawa, Ontario, our family-owned and operated company has thrived for over five decades. We are dedicated to delivering top-notch service and ensuring customer satisfaction.



Insulation is essential in maintaining comfortable indoor temperatures and reducing energy costs for buildings in Ottawa, whether residential homes or commercial offices. Hiring a professional insulation company for installation is essential for several reasons.


Firstly, professionals bring years of hands-on experience, ensuring the job is done efficiently and effectively. They possess the necessary knowledge to make informed decisions about insulation type, thickness, and placement, considering factors such as building layout, area, and occupants' needs. Additionally, professionals have access to top-notch tools and high-quality materials required for proper installation, which most individuals do not possess or are not cost-effective to purchase for a one-time job.


Moreover, professional insulation contractors are well-versed in safety protocols, especially when removing old insulation, which can trap dirt, debris, and pollutants. They also prioritize energy efficiency, designing insulation plans that maximize energy savings and reduce stress on HVAC systems. Furthermore, professionals ensure the proper disposal of old insulation, follow environmentally friendly practices and offer eco-friendly insulation options.


By working with a professional insulation company in Ottawa, you can rest assured that your building's insulation needs are expertly addressed, leading to improved comfort, energy efficiency, and environmental sustainability.



Discover why our insulation company in Ottawa is the top choice for residents:


  • A foundation of excellence: With years of experience, we have established a reputation for excellence in the insulation industry.

  • Save money: Our insulation solutions are designed to help you reduce energy costs, saving you money in the long run.

  • Help the environment: By enriching the energy efficiency of your home or business, you can work on your carbon footprint and help to protect the environment.

  • Protect your investment: Proper insulation can help protect your property from damage, preserving its value over time.

  • See our work: View our portfolio to see examples of our high-quality insulation installations.

  • Trusted by clients: Join the ranks of our satisfied clients who have had the experiences and the benefits of our insulation services.


Choose our insulation company in Ottawa for superior service and results.




Since 1967, our successful company has grown significantly, expanding our service offerings, continuously upgrading equipment and broadening employee training. O’Reilly Brothers prides itself on experienced project management, employment of qualified personnel, and an overall commitment to quality control. Our diverse list of satisfied clients grows locally, nationally, and internationally every year.


We rely on a strong team of 50+ dedicated employees to see our projects through to completion. Our trained technicians operate 20+ service vehicles to maximize each work day. Each job site has a team manager who labours and oversees the crew, ensuring our work is done properly and efficiently.


Over the last ten years alone, we have completed at least 1,000 residential jobs per year, totalling over 9,500 clients. This includes cottages and recreational vehicles. We have completed at least 600 commercial jobs, ranging from food production facilities to high schools and hospitals.


If we go back over our more than 55 years in the field, the number of projects we have completed is staggering. We mainly rely on word of mouth and our trucks to advertise our company, which has been more than enough. Our good reputation speaks for itself, and satisfied clients share our name and number.


Our impressive history supports the statement “The Leading Insulation Experts for Eastern Ontario.” Call today to benefit from our expert services.




All insulation is not equal. Insulation receiving a rating of high efficiency and R-value has a greater ability to reduce heat transfer and loss. Older homes are commonly insulated with outdated, under-performing insulation with lower than standard R-values.


With proper updated insulation, you can save hundreds of dollars in energy costs in heating and cooling seasons. You will have cost recovery for the new insulation, and if you sell your home, you may enjoy an overall higher list price.




Installed by professionals; new insulation helps seal many areas where air transfer happens in your home. Creating tight seals directly reduces the amount of greenhouse gases emitted from your property. We all need to do our part to protect the earth: this is a simple way to do so, and it benefits you directly by saving money.



Insulation that needs to be better installed, too old, or insufficient allows wind and rain into your home. Too much moisture in your house increases material and structural deterioration and can create health concerns.

Too dry an environment can be just as damaging and uncomfortable. Improving your insulation saves on heating and cooling costs, as they will never be in demand. Furthermore, your furnace or air conditioner will have a longer lifespan. Effective insulation helps to keep the value of your home from declining.




Watch the application of polyurethane spray foam insulation: the effect is immediate, the savings are long-term, and the product is superior.




Our most significant international venture occurred in July 2009 when O’Reilly Brothers sent a 3-man crew to the Canadian Embassy in Kabul, Afghanistan, for a 2-week duration. We remain bound by national security measures and can’t disclose any information about the work we completed at that site.


However, our firm is of high reputation, and we were honoured to be selected for a project of such magnitude and international importance.


Some of Our Clients:

  • Ottawa Hospital – General Campus

  • Ottawa Hospital – Civic Campus

  • Riverside Hospital

  • Royal Ottawa Hospital

  • Montfort Hospital

  • St. Joseph Catholic High School

  • All Saints Catholic High School

  • 75+ elementary schools in the region

  • Parliament Hill – Centre and West Blocks

  • Parliamentary Precinct

  • German Embassy

  • United States Embassy (both new and old)

  • Department of National Defense

  • Place de Ville

  • Place du Portage

  • Tunney’s Pasture

  • Environment Canada

  • Royal Canadian Mounted Police Headquarters

  • Ottawa Police Headquarters

  • Canadian Museum of Nature

  • Canadian Museum of Civilization

  • Royal Canadian Mint

  • Canadian War Museum (both new and old)

  • Canada Science and Technology Museum

  • Ottawa University

  • Carleton University

  • Algonquin College

  • Minto Place Towers

  • Hall Beach, Nunavut (government offices)



We are always looking for insulators, batters, spray foamers, and a support crew to join our busy team since we are busy year-round. Experience is a plus; some job components include working in attics, basements, and crawl spaces, as well as working with vapour barriers and air sealing. A valid driver’s license is preferred but not required. We offer permanent full-time employment that includes benefits, weekday work hours (7 a.m. to 3:30 p.m. Monday to Friday), free uniforms, the opportunity to work overtime, and paid staff training. If you take as much pride in your work as we do, we want to hear from you.


Please email your resume to


We thank all applicants, but only those considered for employment will be contacted.


Estimator for Insulation


Join the O'Reilly Brothers Team


O'Reilly Brothers has been a leader in providing top-quality insulation solutions for over fifty years. Our commitment to cutting-edge technology, eco-friendly practices, and customer satisfaction has transformed spaces into healthier, energy-efficient environments. We are dedicated to optimizing comfort, reducing energy consumption, and enhancing building performance, all while contributing to a greener and more sustainable future.


Date Posted: January 19, 2024


Job Type: Full-time Employment


Benefits: Dental, Vision, and Extended Health Care


Job Location: 55 Capital Drive, Ottawa, ON K2G 0E7


​Job Description:


We seek a motivated Estimator to join our estimating team. The ideal candidate will possess strong computer and organizational skills, with a focus on multitasking and attention to detail. As an Estimator, you will be responsible for scheduling projects, completing take-offs, managing clients, and interfacing with field crews. Additionally, you will be crucial in managing and coordinating the internal scheduling system and handling Proposals/Tenders as required.




  • Assist in the preparation of project estimates and requests for proposals.

  • Complete take-offs as directed by senior/lead estimators.

  • Process estimates and complete all paperwork under approved procedures.

  • Schedule your time effectively, prioritizing opportunities based on importance and value.

  • Prepare accurate quantity take-offs of material and labour costing.

  • Provide final cost estimates and bid submission documents for the scope of work.

  • Schedule work upon project award.

  • Verify and confirm project bookings before deploying the team.

  • Create projects, work plans and budgets.

  • Identify risk factors associated with work plans.

  • Ensure compliance with work plans.

  • Maintain accurate and transparent records of quotes for future use/reference.

  • Maintain strong relationships with clients.




  • 3-5 years of estimating experience with a construction contractor in a similar capacity is preferred.

  • Ability to work independently in a deadline-driven work environment.

  • Driver's license with a clean abstract.

  • Clear criminal background check.

  • Team player with an open-minded attitude.


Join O'Reilly Brothers and contribute to our legacy of excellence in insulation solutions. Apply today and be part of a team shaping a sustainable future.

O'Reilly Brothers is an equal opportunity employer.



At our company, we always welcome new clients. Whether you're a homeowner or a commercial property manager, our team can provide you with insulation solutions that add value and functionality. Apart from insulation, we can help you with your removal and abatement needs.

Please contact us to learn more about our insulation company in Ottawa. Besides this, you can read our FAQs section to acquire more information.



O'Reilly Brothers is your go-to insulation company in Ottawa. We're always welcoming new clients.

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