Job Description

Build the Future of Sustainable Construction with Quantum Passivhaus

Quantum Passivhaus is seeking an experienced "Estimator" to support our growing portfolio of high-performance residential and commercial projects including construction and deep energy retrofit projects.

Since 2017, we have delivered advanced panelized solutions that combine modern prefabrication with leading building science practices.

Our panelized systems enable durable, low-carbon building envelopes designed to meet Net Zero, Net Zero Ready, Passive House, and other high-performance standards.
If you're ready to work at the forefront of sustainable construction and contribute to the industry's shift toward smarter, more resilient building solutions, we want to hear from you.

About the Role

We are seeking a highly organized and detail-driven Construction Estimator to support our residential, multi-unit and commercial prefabricated construction projects across Ontario. This role will be responsible for accurate cost estimating, procurement coordination, and continuous process improvement to support efficient, high-quality project delivery. The ideal candidate brings strong technical knowledge, excellent analytical abilities, and a collaborative mindset.

Key Responsibilities:

Estimating & Procurement

Prepare detailed cost estimates for residential, multi-unit, and prefabricated projects, with a focus on trade scopes and panelized construction requirements. As the design progresses, conceptual construction budgets are developed and continuously updated. The estimator interprets all project documentation--including drawings and specifications--and consistently defines and refines the project scope. Review all budget quotes from trade contractors and carefully check submissions for discrepancies to ensure the full scope of work is accurately covered. Perform quantity takeoffs in coordination with the Design team, accurately assessing materials, labour, timelines, and production requirements. Ensures take-offs are well noted for hand-over to the project team. Monitor bidding platforms and construction media for new bidding opportunities and incoming RFQs. Track supplier and material cost fluctuations to ensure competitive and up-to-date pricing. Maintain, update, and refine estimating templates, tools, and cost databases to support consistent and accurate estimates. Updates trade contractor, supplier, and vendor prequalification lists. Manage procurement activities including issuing purchase orders, securing quotes, negotiating contracts, and ensuring on-time, specification-compliant deliveries. Oversee inventory management; document all purchasing activity and change orders. Support vendor sourcing and maintain strong relationships with suppliers and subcontractors across Ontario.

Process Improvement & Coordination

Implement and optimize workflows for estimating and procurement using digital tools and construction management software. Collaborate closely with Design, Project Management, Production, and Site teams to ensure seamless project execution from estimate through delivery. Provide recommendations and feedback to improve internal processes, cost accuracy, and project efficiency. Process changes orders and support project managers in aligning budget adjustments with schedule and scope updates.

What You Bring

Credentials & Experience

Degree or diploma in Construction Management, Engineering, Architecture, or a related field--or an equivalent combination of education and industry experience. Minimum 3+ years of experience in construction estimating, preferably within wood-frame, prefabricated, panelized, or ICI environments. Strong knowledge of MasterFormat, National Master Specifications, CCDC contracts, Ontario Building Code compliance, and standard tendering practices. Professional estimating certifications (CEC, PQS, GSC, or equivalent) or willingness to obtain certification within a reasonable timeframe are an asset.

Skills & Traits

Highly independent, detail-oriented, and capable of leading the estimating function with minimal oversight. Proficient with construction software such as BuilderTrend, and digital takeoff tools; comfortable working in Google Workspace, and advanced Excel skills. Strong ability to read, interpret, and analyze architectural, structural, mechanical, and site drawings. Solid understanding of construction workflows, permitting processes, subcontracting, and various project delivery methods. Excellent negotiation, communication, and vendor management skills. An interest or background in sustainability, prefabricated construction and or Passive House / net zero/ net carbon design is considered a strong asset.

What We Offer

Competitive salary Comprehensive benefits package i.e., dental, vision, extended health, life insurance, wellness program, and EAP. Paid time off and company-covered travel expenses. Regular team-building events and a supportive, inclusive company culture. Opportunities for continuous learning, innovation, and career growth in a diverse and mission-driven team

How to Apply

Please submit your resume and a brief cover letter outlining relevant experience. Only qualified candidates will be contacted for interviews.

Quantum Empowered Employees

Quantum Passivhaus is committed to creating a diverse and inclusive workplace. We encourage applications from all qualified applicants. Accommodations are available upon request throughout the hiring process, in accordance with the Accessibility for Ontarians with Disabilities Act (AODA).

Join us--and help revolutionize how construction is delivered and be a part of creating a more equitable future for all.

Job Types: Full-time, Fixed term contract
Contract length: 12 months

Pay: $24.00-$38.00 per hour

Expected hours: 42.5 per week

Benefits:

Casual dress Company events Dental care Employee assistance program Extended health care On-site parking Vision care Work from home
Ability to commute/relocate:

Minden, ON: reliably commute or plan to relocate before starting work (required)
Experience:

Construction: 1 year (required)
Location:

Minden, ON (preferred)
Work Location: Hybrid remote in Minden, ON