Job Description WHAT''S THE JOB Working at National Defence project sites, the HVAC-R Technician is responsible for diagnostics, preventative and corrective maintenance, installation, and repair of HVAC-R and related building systems.

This includes refrigeration equipment, boilers, heating systems, BAS controls, life safety devices, and associated facility equipment to ensure safe and efficient operations.

Enjoy a strong total rewards package starting on day one, including extended health and dental coverage.

This role offers a consistent Monday

Friday daytime schedule for routine work (with occasional emergency support as needed), helping you maintain a healthy work-life balance.

Youll also be fully equipped for success with company-provided tools and uniforms.

Key Responsibilities Perform planned preventative and reactive maintenance on HVAC and mechanical systems including HRVs, hot water tanks, boilers, furnaces, smoke and CO detectors, and air conditioning systems.

Conduct filter changes, coil cleaning, belt and pulley replacements, bearing and pump seal repairs, combustion testing, balancing, and system adjustments.

Diagnose and repair refrigeration and HVAC equipment, including leak detection and system testing.

Ensure compliance with all applicable codes, regulations, safety standards, TSSA requirements, and company procedures.

Conduct risk assessments and develop pre-work safety and job plans.

Review and manage assigned work orders using CMMS/work order software.

Estimate time and materials required for repairs and coordinate material ordering with planners.

Transport tools and materials to job sites as required.





Maintain professional and courteous communication with clients, contractors, vendors, and colleagues.

Provide guidance and mentorship to junior technicians and apprentices.

Skills & Abilities Ability to read mechanical, electrical, and control drawings.

Working knowledge of building automation, life safety, electrical, and environmental systems.

Strong organizational and task management skills.

Ability to prioritize multiple tasks and work effectively under time constraints.

Strong communication and interpersonal skills.

Ability to work independently and within a team environment.

Calm and professional demeanor in high-demand situations.

Basic computer skills including Microsoft Office and CMMS systems.

Robust troubleshooting and problem-solving skills.

Ability to follow oral and written instructions.

Qualifications WHO ARE WE LOOKING FOR? Must be able to obtain a secret level security clearance with defense Canada under the Government legislation Red Seal 313A Refrigeration & Air Conditioning Certification required.

Gas Fitter 2 certification minimum (Gas Fitter 1 preferred).

Ozone Depletion Prevention (ODP/ODS) certification.

Minimum 3 years of related experience.

Post-secondary technical education preferred.

Valid drivers license with clean drivers abstract.

Working at Heights certification.

Health & Safety Awareness Training. WHMIS/MSDS Training.

First Aid certification considered an asset.

Ability to read, write, and speak English fluently.

Working Conditions Frequent walking, bending, stooping, crawling, and reaching.

Ability to lift up to 50 lbs.

Comfortable working at heights and on ladders.

Ability to work independently with minimal supervision.

📌 HVAC-R Technician (Dartmouth)
🏢 Dexterra Group
📍 Dartmouth