Mechanical estimating expertise drives accurate budgets, quantity take-offs, and bid submissions at EllisDon across complex construction projects. This role is client-facing.
As an Intermediate or Senior Mechanical Estimator, you will prepare estimates throughout project lifecycles and phasing. Your work spans hard-bid, construction management, design-build, and stipulated-price submissions. You will coordinate mechanical scopes with architectural, civil, structural, and electrical estimators while supporting subcontractor buyout.
Key Responsibilities: Prepare pre-construction estimates, budgets, and guaranteed maximum price submissions
Complete quantity take-offs for labor, equipment, and materials
Review drawings, tender documents, contracts, and scope narratives
Coordinate scope delineation and estimating matrices with multidisciplinary estimators




Organize subcontractor quotes and support negotiations and buyout
Requirements: Intermediate or senior mechanical contracting or construction estimating experience
Knowledge of estimating strategies, techniques, and construction contracts
Ability to read engineering drawings and calculate mathematical extensions
Experience estimating mission-critical, industrial, pharmaceutical, or life-science projects
Knowledge of plumbing, fire protection, HVAC, and BAS/BMS systems
Apply mechanical estimating, construction contracts, and quantity take-off expertise to EllisDon’s pre-construction and bidding work.

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📌 Mechanical Estimator Pre-Construction (Ontario)
🏢 18 EllisDon Construction Services
📍 Ontario