Mechanical Estimator – Water/Wastewater Infra

Gilder Search Group; Mississauga; On-site; CAD 75,000 - 110,000; Full time

Job summary

Gilder Search Group is seeking a Mechanical Estimator (Water/Wastewater) in the GTA, Ontario. The role focuses on preparing accurate, competitive estimates and supporting tender processes from identification to handover.

Candidates should have 4+ years of estimating experience with mechanical contractors, knowledge of municipal/water infrastructure, and proficiency with Accubid/SmartBid. Degree or diploma required; professional membership preferred.

Qualifications

• 4+ years of estimating experience with a mechanical contractor.
• Experience estimating mechanical construction projects involving municipal, or water/wastewater infrastructure.
• Diploma or degree in Mechanical Engineering, Construction, or related field.
• Professional membership with organizations such as PEO, OACETT, or AACE.
• Strong understanding of construction methods, estimating principles, and cost control.
• Experience preparing quantity take-offs and developing complete bid packages.
• Working knowledge of construction scheduling concepts (CPM).
• Proficiency with estimating software such as Accubid, SmartBid, or similar platforms.
• Strong analytical, organizational, and communication skills.
• The ability to manage multiple tenders while meeting critical deadlines.

Responsibilities

• Preparing detailed cost estimates for mechanical construction projects including labour, materials, equipment, subcontractors, and indirect costs.
• Reviewing drawings, specifications, and contract documents to identify project requirements, risks, and opportunities.
• Performing quantity take-offs and labour calculations.
• Soliciting, evaluating, and leveling subcontractor and supplier quotations.
• Preparing RFIs and clarifications during the bidding process.
• Coordinating bid submissions, tender documentation, and pricing strategies.
• Participating in site visits, pre-bid meetings, and post-tender reviews.
• Supporting procurement activities and maintaining relationships with suppliers and subcontractors.
• Assisting with project turnover by converting successful estimates into budgets and handover packages.
• Working with operations teams to support project execution, productivity tracking, change pricing, and claims when required.

Skills

Analytical skills

Organizational skills

Communication skills

Multitasking

Education

Diploma or degree in Mechanical Engineering/Construction

Tools

Accubid

SmartBid

Job description

Gilder Search Group is seeking a Mechanical Estimator (Water/Wastewater) in the GTA, Ontario. The role focuses on preparing accurate, competitive estimates and supporting tender processes from identification to handover.

Candidates should have 4+ years of estimating experience with mechanical contractors, knowledge of municipal/water infrastructure, and proficiency with Accubid/SmartBid. Degree or diploma required; professional membership preferred.