Senior Estimator (Mechanical/Plumbing)

Williams Plumbing based in Belgrade Montana is looking for a Senior Estimator to lead the development of accurate, competitive cost estimates for large and complex mechanical and plumbing projects. This role goes beyond just building estimates - you’ll help shape bid strategy, mentor team members, and ensure consistency and quality across all estimating efforts.

If you have deep industry knowledge, strong analytical skills, and enjoy leading others while staying hands-on, this is a great opportunity to make an impact.

ABOUT WILLIAMS: 

Williams is the Northwest’s largest plumbing contractor. From hospitals to restaurants to high-end custom homes, we’re building Montana into the future. Our team is led by the most experienced plumbers in the industry. We have the largest apprentice program in the state. We have the manpower to take on the most exciting and ambitious projects. Plumbing is the foundation of our company and we take pride in training and retaining the best plumbers this side of the Rocky Mountains. 

Located in beautiful Belgrade, Montana, outdoor adventures surround us. There’s no better place to live than Big Sky Country. Together, we build and play in Montana. 

WHAT YOU'LL DO:

Provide oversight and final validation of complex estimates, ensuring accuracy, completeness, and alignment across all scopes

Lead bid strategy and risk assessment in partnership with Estimating Manager, shaping pricing approach for high-value projects

Perform deep analysis of construction documents to identify scope gaps, design risks, and cost exposures

Direct vendor and subcontractor strategy, including leveling, negotiations, and final buyout recommendations

Own final estimate development, including full cost modeling (labor, material, equipment, subcontractors, overhead, contingency)

Mentor the estimating team, driving standards, consistency, and continuous process improvement

WHAT YOU BRING: 

7+ years of estimating experience with a track record of leading large, complex mechanical/plumbing bids

Expert-level knowledge of HVAC, plumbing, and piping systems, including cost drivers, constructability, and installation methods

Proven ability to own and deliver full-scope estimates independently for high-value, multi-trade projects

Advanced expertise in interpreting drawings, specs, contracts, and identifying risk gaps before bid

Demonstrated experience in leading bid strategy, subcontractor/vendor negotiations, and final pricing decisions

Strong leadership presence with experience mentoring estimators and influencing team standards and performance

BENEFITS & PERKS

At Williams, we take care of our team with competitive benefits, growth opportunities, and a culture that values work-life balance. Here’s what you can expect:

1. Competitive Wage 

2. Comprehensive Health Coverage

Medical Insurance: Choose from 3 affordable plans (including HSA and FSA options)

HSA Employer Contribution: $600 for individuals, $1,200 for families (HDHP HSA plan)

Telemedicine

Dental & Vision Insurance

3. Financial & Retirement Support

401(k) Employer Match: Up to 8% (based on company profitability)

Company-Paid Life Insurance

Voluntary Accident, Short-Term, and Long-Term Disability Insurance

4. Time Off & Work-Life Balance

Paid Time Off (PTO)

6 Paid Holidays

Employee Assistance Program (EAP): Confidential support for mental health, financial planning, legal guidance, and more

5. Growth & Development

Williams Academy: In-person training, 60+ online courses, and ongoing professional development

Referral Bonuses: Get rewarded for bringing great people on board

6. Extra Perks & Fun

Pet Insurance

Company Events: Archery Tournament, Golf Tournament & more!

Perks include discounted gym memberships and savings on dog daycare and boarding

Live & Work in the "Last Best Place": Enjoy the beauty and adventure of Montana!

Join a team that values teamwork, individual responsibility, and commitment success while making sure you have the support and perks to thrive!