Commercial Construction Estimator – General Contractor

Commonwealth Building Inc.; Rockland (MA); On-site; USD 85,000 - 110,000; Full time

Job summary

Commonwealth Building, Inc. is seeking a Commercial Construction Estimator – General Contractor for a full-time, on-site position in Rockland, MA.

The estimator will review drawings, perform quantity take‑offs, and develop project budgets while coordinating with the team to align estimates with schedules, means and methods, and client expectations. The candidate should have strong estimating skills for commercial projects, experience with cost management, and the ability to communicate

Qualifications

• Experience in commercial projects and general contracting.
• Proficiency in quantity take-offs and estimating software/digital tools.
• Experience with cost management and project budgeting, including bid analysis.
• Strong communication with internal teams, clients, and subcontractors.
• Knowledge of means/methods, codes, and industry standards.
• Ability to read and interpret architectural/engineering drawings and specs.

Responsibilities

• Prepare detailed estimates for commercial construction projects.
• Review drawings and specifications for accuracy.
• Perform quantity take-offs and budget development.
• Solicit and analyze subcontractor and vendor pricing.
• Identify scope gaps and constructability issues; align with project schedules.

Skills

Estimating

Quantity take-offs

Cost management

Communication

Drawings reading

Analytical thinking

Education

Construction Management degree

Engineering degree

Equivalent industry experience

Tools

Estimating software

Digital tools

Job description

Company Description

Commonwealth Building, Inc. is a full-service commercial construction company serving clients throughout the New England region. The company delivers preconstruction planning, general contracting, design-build, maintenance, and special project services across retail, restaurant, corporate, and broader commercial market sectors. Team members work with an extensive portfolio of ground-up builds, fit‑outs, and renovations, supporting diverse client needs and project types. Commonwealth Building, Inc. is committed to strong, long-term relationships with clients, trade partners, and vendors, and is proud of its high level of employee retention and collaborative work culture.

Role Description

The Commercial Construction Estimator – General Contractor is a full-time, on-site role based in Rockland, MA. This role is responsible for preparing detailed and accurate estimates for commercial construction projects, including reviewing drawings and specifications, performing quantity take-offs, and developing project budgets. Day-to-day tasks include soliciting and analyzing subcontractor and vendor pricing, assessing scope gaps and constructability, and preparing clear proposal documents for clients and internal stakeholders. The estimator collaborates with the CBI team to align estimates with project schedules, means and methods, and client expectations.

Qualifications

• Strong construction estimating skills with experience in commercial projects and general contracting.
• Proficiency in quantity take-offs and the use of estimating software or digital tools.
• Experience with cost management and project budgeting, including analyzing bids and tracking historical costs.
• Effective communication skills for working with internal teams, clients, and subcontractors.
• Knowledge of commercial construction means and methods, building codes, and industry standards.
• Ability to read and interpret architectural and engineering drawings and specifications.
• Strong analytical, organizational, and time-management skills with attention to detail.
• Relevant education such as a degree in Construction Management, Engineering, or a related field, or equivalent industry experience.
• Experience in the New England commercial construction market and familiarity with local subcontractor networks is beneficial.