Specified is an established, well-respected building envelope contractor delivering commercial and institutional roofing, cladding and waterproofing projects across Ontario. As part of our continued growth, we are expanding our Waterproofing division to take on a broader range of building envelope and below-grade projects, and we are hiring a Senior Estimator to lead its estimating function.

This is an opportunity to play a key role in a growing division inside a stable company: you will influence estimating processes, develop industry relationships, and contribute directly to the division’s long-term success.

Position Summary
Reporting to the Vice President, Estimating & Preconstruction, the Senior Estimator will lead estimating for commercial waterproofing and related building envelope projects. The role requires deep technical knowledge of waterproofing systems, strong commercial awareness, and the ability to prepare accurate, competitive estimates while supporting the division’s strategic growth. You will be equally comfortable preparing detailed estimates, engaging with clients and consultants, evaluating subcontractor and supplier pricing, identifying project risk, and helping improve estimating procedures and best practices.

Key Responsibilities

Lead estimating for commercial and institutional waterproofing projects

Review tender documents, specifications, architectural and structural drawings, geotechnical information and contract requirements

Prepare detailed quantity take-offs for labour, materials, equipment and subcontracted work

Solicit, review, evaluate and negotiate quotations from suppliers and subcontractors

Develop accurate project budgets, cost estimates and competitive tender submissions

Identify value engineering opportunities and alternative waterproofing solutions

Assess project risk, site conditions, constructability and appropriate pricing strategies

Attend pre-tender meetings, site visits and client or consultant meetings as required

Work closely with project management to ensure a smooth handover following award

Build and maintain relationships with general contractors, consultants,



architects, engineers, suppliers and manufacturers

Help develop estimating systems, cost databases, productivity rates and standard costing models

Monitor market conditions, material pricing, labour costs and industry trends

Provide technical input on waterproofing specifications, system selection and installation requirements

Mentor junior estimators and support the development of estimating capability as the division grows

Contribute to business development, client presentations and strategic planning

Maintain a high standard of professionalism, accuracy and confidentiality throughout the tendering process

Required Qualifications

8+ years of estimating experience in commercial waterproofing, below-grade waterproofing, roofing or building envelope construction

Robust technical knowledge of commercial waterproofing systems, including: below-grade and foundation waterproofing; hot-applied rubberized asphalt waterproofing; cold-applied liquid and fluid-applied membranes; self-adhered sheet membranes; bentonite systems; plaza deck, podium, balcony and traffic-bearing waterproofing; pedestrian and vehicular traffic coatings; dampproofing and foundation protection; drainage boards, protection boards and insulation; air barriers and related building envelope systems

Thorough understanding of commercial construction practices, waterproofing specifications and contract documentation

Ability to read and interpret architectural, structural, civil and shop drawings

Experience estimating projects ranging from approximately $250,000 to $10 million or more

Strong understanding of waterproofing installation methods, sequencing, site conditions and constructability

Excellent mathematical,



analytical and problem-solving skills

Strong communication, negotiation and relationship-building abilities

Highly organized, with exceptional attention to detail and the ability to manage multiple tenders under deadline

Proficient with Microsoft Office, particularly Excel

Experience with Bluebeam, AutoCAD, estimating software or similar take-off tools is an asset

Preferred Qualifications

Diploma or degree in Construction Management, Civil Engineering, Architectural Technology or a related discipline

Previous experience mentoring or managing estimating staff

Established relationships with general contractors, consultants, engineers and waterproofing manufacturers in the commercial construction market

Familiarity with applicable building codes and industry waterproofing standards

Who You Are

Self-driven and committed to continuous improvement

Takes ownership and accountability for estimating accuracy and results

Commercially minded, analytical and solution-focused

Understands the importance of risk management and sound pricing strategy

Enjoys developing processes and improving estimating systems

Communicates effectively with clients, consultants, suppliers and internal teams

Works independently while contributing to a collaborative culture

Thrives in an entrepreneurial environment where you can make a meaningful impact

What We Offer

Salary range of $110,000 – $130,000, commensurate with experience

Performance-based bonus opportunities

Comprehensive health and dental benefits

A stable, well-established company with an excellent industry reputation

The opportunity to contribute to the growth of an expanding waterproofing business

Supportive leadership and the autonomy to influence estimating processes and departmental development

Long-term career growth within a growing construction organization

This posting is for a newly created position. Specified Roofing Inc. is an equal opportunity employer; accommodations are available on request throughout the recruitment process.

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📌 Estimator – Waterproofing (Ontario)
🏢 Specified
📍 Ontario