Estimator, Engineering, Civil Engineering

Based in St. Louis, Core & Main is a leader in advancing reliable infrastructure with local service, nationwide. As a specialty distributor with a focus on water, wastewater, storm drainage and fire protection products and related services, Core & Main provides solutions to municipalities, private water companies and professional contractors across municipal, non-residential and residential end markets, nationwide. With over 370 locations across the U.S., the company provides its customers local expertise backed by a national supply chain.

Core & Main's 5,700 associates are committed to helping their communities thrive with safe and reliable infrastructure. Visit to learn more.

This position is a Full time; remote role based out of our Falmouth VA branch.

Salary plus bonus, Health, Dental, Vision, matching 401K, 9 Holidays, 3 weeks PTO, and more!

We are seeking a detail-oriented and experienced Estimator to join our Waterworks team in Falmouth, VA. This individual will be responsible for preparing accurate and competitive cost estimates for water, sewer, and stormwater infrastructure projects. The Estimator will work closely with sales teams, project managers, engineers, and vendors to support bid preparation, pricing strategy, and project planning.

This is a critical role that directly supports our mission to deliver industry-leading solutions to municipalities, contractors, and utility companies.

• Analyze project plans, specifications, and other documentation to prepare time, cost, material, and labor estimates for waterworks construction and distribution projects.
• Collaborate with sales representatives, branch staff, and customers to identify project requirements and ensure accurate takeoffs.
• Perform detailed material takeoffs using digital and manual tools.
• Source vendor quotes and pricing for pipes, valves, fittings, meters, and related products.
• Develop and submit competitive bids and proposals in a timely manner.
• Maintain and update pricing databases, bid logs, and project tracking tools.
• Attend pre-bid meetings and work closely with customers to understand scope and constraints.
• Monitor awarded projects to ensure accuracy of estimated vs. actual costs.
• Partner with operations and procurement teams to support post-award project execution.

• 3+ years of estimating experience in the construction, civil, or waterworks industry.
• Strong knowledge of water, sewer, and stormwater materials, industry standards and construction methods.
• Ability to read and interpret civil site plans and technical drawings.
• Proficient in Microsoft Excel and estimating software (e.g., Bluebeam, Auto Bid, or similar tools).
• Excellent organizational skills and attention to detail.
• Strong written and verbal communication skills.
• Ability to manage multiple deadlines and shifting priorities.
• Education: High School diploma or GED required
• Must be able to pass a background check.

Core & Main is an Equal Employment Opportunity employer. Employment at Core & Main is based solely on a person's merit and qualifications directly related to professional competence. Core & Main does not discriminate against any employee or applicant on the basis of race, creed, color, religion, national origin, nationality, ancestry, age, disability, veteran status, pregnancy or related condition (including breastfeeding), affectional or sexual orientation, gender identity or expression, marital status, status with regard to public assistance, citizenship, or any other basis protected by law.

None of the questions in this application are intended to elicit information regarding any protected characteristics, nor imply any limitation, illegal preferences or discrimination based upon non-job-related information or protected characteristics.

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