top of page

Trusted Insulation Company in Ottawa


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 you with insulation solutions that meet your needs. Since our inception, we've continued our commitment to offer the area's residents the latest insulation solutions.

We have the ability to work on all types of properties and offer an endless range of 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.



Choosing an insulation solution is one of the most important decisions you will make, and O’Reilly Brothers in the Ottawa area has the experience and knowledge to help you every step of the way.


In 1967, Richard O’Reilly of Ottawa, Ontario, founded a strong company that has now exceeded five decades in operation. It remains a family-owned and operated business committed to quality service and customer satisfaction.

This tightly-knit company is led by Terrence O’Reilly and Garth McKibbon, with combined experience exceeding 50 years. Assisting as estimators are Jason Grulke, Blake Saucier-Curtis, Steven Chitty, and Dale Kerr.



Quality insulation brings benefits to all buildings, whether they're family homes or downtown offices. In simple terms, insulation prevents inside air from leaving your home, and outside air from coming in. Therefore, it is important you only choose professionals for insulation installation. Doing so has many benefits, such as:


  • Experience: No amount of internet research can make up for the expertise that comes with years of on-hand experience. Insulation contractors have this experience and will get the job done right without wasting your time and money.

  • Knowledge: Laypersons do not have the adequate know-how to make decisions regarding your property's insulation while considering factors such as the building layout, area and the occupants' needs.

  • Tools: Most people don't have access to the tools required to install insulation correctly. Buying these tools for a one-time job is not financially prudent. The professionals, on the other hand, always have cutting-edge tools and quality materials with them.

  • Removal: Replacing old insulation requires the removal of old and outdated insulation. This task is hazardous because insulation traps dirt, debris, mould and other pollutants. Professionals understand these risks and follow relevant safety protocols.

  • Energy-efficiency: Seasoned insulation contractors will always seek to maximize your property's energy efficiency. They will make decisions that eventually lead to energy savings and less stress on your HVAC system.

  • Disposal: The removal of old insulation also requires safe disposal. As a layperson, you probably have no knowledge of the correct disposal procedures. Professionals will remove your insulation and disposal according to the relevant guidelines.

  • Eco-friendly: An expert insulation contractor will educate you about your options so that you can make an eco-friendly choice with your insulation. They can incorporate greener options in your insulation plan.

  • Insulation plan: Professional insulation contractors have the know-how to design a personalized insulation plan for your building. They will ensure that your insulation envelope is secure. This is particularly important for larger commercial buildings.

Would you like to know more about the benefits of working with professional insulation contractors? Please don't hesitate to speak to our experienced team. You can read our blog to access valuable information.


Since 1967 our successful company has grown significantly, expanding our service offerings and 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.

To see our projects through to successful completion, we rely on a strong team of more than 35 dedicated employees. Our trained technicians operate a fleet of 20 service vehicles to maximize each work day. Each job site has a team manager who labours as well as oversees the crew, ensuring that our work is done properly and efficiently.

Over the last 10 years alone, we have completed at least 1,000 residential jobs per year; totaling 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.

Needless to say, 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, and that has been more than enough. Our good reputation speaks for itself and satisfied clients are sharing our name and number.

We have an impressive history to back up 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, both in the heating and cooling seasons. You will have cost recovery for the new insulation, and in the event of selling your home, you may enjoy an overall higher list price.



Installed by professionals, new insulation helps to seal many areas in your home where air transfer happens. 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 is poorly installed, too old, or insufficient allows wind and rain right into your home. Having 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 over 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 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 pertaining to the work we completed at that site.

However, it can be concluded that our firm is of high repute 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, and 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 uniform, 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 being considered for employment will be contacted.

Estimator for Insulation

Join the O'Reilly Brothers Team

For over fifty years, O'Reilly Brothers has been a leader in providing top-quality insulation solutions. 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 are seeking 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 play a crucial role 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 in accordance with approved procedures.

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

  • Prepare accurate quantity take-offs of material and labor 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 project, 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 that is shaping a sustainable future.

O'Reilly Brothers is an equal opportunity employer.


At our company, we're always welcoming 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 know more about our insulation company in Ottawa. Besides this, you can read our FAQs section to acquire more information.




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

bottom of page