Do you enjoy hands-on work where you can see the results of your effort every day? Can you see yourself working as a skilled Heat & Frost Insulator, installing and maintaining insulation systems that support critical infrastructure and safe operations? Do you like working in a role where precision, craftsmanship, and safety come together to make a real impact? If you answered yes, then this may be the job for you!

What will you be doing!

Performing the recognized duties of a journeyman heat and frost insulator.
Installing and removing insulation materials on piping, vessels, tanks, boilers, and ductwork.
Preparing and applying insulation materials using proper fastening techniques.
Cutting and fitting insulation on valves, fittings, and irregularly shaped equipment.
Applying insulation cement and finishing coats to ensure proper insulation protection.
Installing finishing covers and fabricating metal coverings as required.
Estimating quantities and selecting appropriate insulation materials for various jobs.
Safely handling and disposing of asbestos and other insulating materials.
Maintaining a clean, safe, and organized work environment.
Assisting in the training and development of apprentices and new employees.
Other duties as assigned by your manager.

What we are looking for:

Education
- Completed apprenticeship or equivalent as a Heat & Frost Insulator.
Experience
- Experience performing insulating work in an industrial or plant environment.
Knowledge, Skills & Abilities
- Ability to read and interpret blueprints, drawings, and specifications.
- Demonstrated knowledge of insulation materials, applications, and installation methods.
- Skilled in understanding piping systems, heat transfer properties, and plant systems.
- Knowledge of safety practices, including working with hazardous materials such as asbestos.
- Experience using hand and power tools safely and effectively.
- Ability to fabricate metal coverings and perform layout work.
- Strong attention to detail and craftsmanship in installation work.
- Ability to work independently with minimal supervision.
- Strong commitment to maintaining a safe work environment.
Security Clearance Eligibility Required
- Reliability Status with Site Access Security Clearance (SASC), which has a minimum requirement of 3-5 years of verifiable history in Canada, Australia, New Zealand, the United States and/or the United Kingdom. CNL implements security screening in accordance with the Treasury Board of Canada Secretariat's “Standard on Security Screening” and the “Policy on Government Security.”

Working Conditions:

Working schedule: Four (4) days per week, ten (10) hours per day for a forty (40) hour work week
This position is part of the M&E Union and is governed by the terms and conditions outlined in the M&E Collective Agreement. As a member of this bargaining unit, you’ll benefit from clear expectations around hours of work, wages, vacation, and other conditions that support a fair and consistent working environment.
This position requires physical fitness and the ability to work in environments that may include temperature extremes, confined spaces, heights, and exposure to industrial conditions.

Why CNL?

Does the idea of working with a dynamic team across Canada to advance nuclear science and technology for a clean and secure world excite you? At CNL, we’re reinventing ourselves to be industry leaders—pioneering solutions to the problems that matter most.

From building the next generation of clean nuclear and hydrogen energy technologies, to developing targeted cancer treatments, to continuing our global leadership in environmental remediation—we are driven by impact, innovation, and purpose.

What We Offer: A Total Rewards Package

We believe in taking care of our people. Here’s what you can expect as part of our team:

Paid time off: vacation, sick, personal, and floater days
Benefits effective Day One – no waiting period
Tuition support to help you keep learning and growing
A defined-benefit pension plan or a defined-contribution pension plan, depending on your employee group, to support your long‑term financial security

Do Our Priorities Resonate with You?

Delivering clean energy for today and tomorrow
Restoring and protecting the environment
Contributing to the health of Canadians

If so, you’ll feel right at home at CNL!

Location: Onsite

Located in the heart of the Ottawa Valley, our Chalk River site offers a beautiful natural setting with forests, lakes, and wildlife, right at your doorstep. Surrounded by welcoming communities such as Deep River, Petawawa, and Pembroke, you’ll have access to unparalleled outdoor adventures and a fantastic work-life balance.

Please note: This is a fully on-site position based at our Chalk River Laboratory in Ontario.

Our Commitment to Equity, Diversity & Inclusion

At CNL, we are committed to fostering an environment that promotes equity, diversity, and inclusion. We celebrate and welcome employees, stakeholders, and partners of all backgrounds and identities. Click here to read all about it!

We are proud to uphold a workplace culture grounded in our Core Values:

Respect
Teamwork
Accountability
Safety
Integrity
Excellence

These values drive our employment practices and ensure meaningful career development opportunities and accommodations for all employees.

CNL is an equal opportunity employer. If you require accommodation during any phase of the hiring process, please let us know via jobs@cnl.ca. All requests will be handled with confidentiality.

CNL operates on sites located on the traditional lands, waterways and ceded and unceded territories of Indigenous peoples. CNL recognizes and affirms all First Nations, Métis communities and Inuit in this land we now know as Canada. We acknowledge, respect and seek to better understand Indigenous history, rights and title on the lands where we work and develop projects. We honour and respect the importance of the relationship between Indigenous peoples and their lands, waters and territories.