Senior Estimator — Mechanical/Plumbing

Job overview

The Senior Estimator — Mechanical/Plumbing role is onsite in Belgrade, MT. Compensation is not specified. Williams Plumbing, described as the Northwest’s largest plumbing contractor, is based in Belgrade, Montana. The estimator leads accurate, competitive estimates for complex mechanical and plumbing projects, shaping bid strategy and supporting consistent estimating standards. The role combines hands-on cost modeling with risk analysis, vendor and subcontractor coordination, and mentoring of the estimating team.

What you'll do

• Validate complex estimates for accuracy and scope alignment
• lead bid strategy and risk assessment with the Estimating Manager
• analyze construction documents for scope gaps, design risks, and cost exposures
• direct vendor and subcontractor strategy, leveling, and negotiations
• develop full-scope cost models
• mentor estimators and improve team standards and processes.

What we're looking for

Skills & competencies

senior estimator

mechanical/plumbing

belgrade mt

williams plumbing

construction

hvac

plumbing systems

bid strategy

cost estimating

subcontractor negotiations

health coverage

401(k) match

paid time off

professional development

Work arrangement

• Weekend coverage required

Benefits & perks

• Medical insurance with HSA and FSA options
• employer HSA contribution
• telemedicine
• dental and vision insurance
• 401(k) match
• company-paid life insurance
• disability insurance
• paid time off
• six paid holidays
• employee assistance program
• training and professional development
• referral bonuses
• pet insurance.

Why this role

Leads estimating for large, complex mechanical and plumbing bids and mentors team members.

About the employer

Williams Plumbing / Williams Civil Construction is hiring for this role. Industry: Plumbing, Heating, and Air-Conditioning Contractors. Sector: 23.