Sr. Estimator

Quanta Services, Inc.; Channelview (TX); On-site; USD 85,000 - 120,000; Full time

Benefits offered by this job

401(k) with immediate matching

Comprehensive benefits packages

Short/Long-term benefits

Employee discounts

Job summary

NorthStar Energy Services, a Quanta Services, Inc. company, seeks an experienced Senior Estimator to join our Channelview, TX office.

The role supports estimating for oil & gas midstream/downstream projects with emphasis on mechanical, piping, civil, and structural scopes. The Senior Estimator will develop accurate cost estimates for EPC and design-build projects, interpret complex drawings, and collaborate with project teams to validate assumptions and strategies.

Qualifications

• Bachelor’s degree (or 10+ years in lieu of degree) in Construction Management, Engineering, or related field.
• 10+ years of estimating experience in industrial construction, with focus on mechanical/piping.
• Proven experience estimating midstream and downstream Oil & Gas projects (terminals, plants, pipelines, facilities).
• Strong knowledge of civil and structural construction methods and cost drivers.
• Advanced proficiency with Trimble Accubid and Microsoft Excel.
• Ability to interpret P&IDs, isometrics, civil drawings, and structural plans.
• Experience supporting EPC or design-build project delivery models preferred.

Responsibilities

• Prepare detailed cost estimates for civil, structural, and mechanical construction scopes, emphasis on piping and mechanical systems.
• Perform quantity takeoffs and develop labor, material, and equipment pricing using Trimble Accubid and Excel.
• Review drawings and scope documents to ensure accurate estimates.
• Collaborate with project teams to validate assumptions and execution strategies.
• Develop pricing for lump sum, unit rate, and time-and-materials proposals.
• Develop construction schedules in Microsoft Project.
• Analyze subcontractor and vendor quotes for alignment with scope and standards.
• Identify project risks, exclusions, and value-engineering opportunities.
• Support bid reviews, reconciliations, and handoff meetings.
• Maintain estimating databases and productivity benchmarks.

Skills

Analytical skills

Organizational skills

Communication skills

Estimating experience

Education

Bachelor’s degree in Construction Management or Engineering

10 years experience in lieu of degree

Tools

Trimble Accubid

Microsoft Excel

Job description

About Us

NorthStar Energy Services, a Quanta Services, Inc. (NYSE:PWR) company, is based in Channelview, TX and provides engineering, design, procurement, construction and support services to the chemical, petrochemical, pipeline, oil & gas, bulk storage and terminal industries throughout the country. We offer individual project services as well as turnkey EPC project implementation.

NorthStar possesses the skills and expertise to self-perform the design and installation of civil, structural, mechanical, piping, electrical, and instrumentation systems throughout a broad array of industrial applications.

Joining our team means being part of an organization that values drive and inclusion. We focus on career development and reward excellence, recognizing each team member's unique contributions. We're at the forefront of powering modern life. Discover how your skills and dedication can make a real difference to us.

About this Role

NorthStar Energy Services is seeking an experienced Senior Estimator to join our team in the Channelview, TX office. This role will support estimating efforts for industrial projects within the Oil & Gas midstream and downstream sectors, with a strong emphasis on mechanical and piping scopes, as well as civil and structural work.

The Senior Estimator will play a key role in developing accurate, competitive cost estimates for EPC and design-build projects. This position requires a deep understanding of industrial construction methods, material takeoffs, labor productivity, and cost controls.

What You'll Do

• Prepare detailed cost estimates for civil, structural, and mechanical construction scopes, with primary emphasis on piping and mechanical systems
• Perform quantity takeoffs and develop labor, material, and equipment pricing using Trimble Accubid and Microsoft Excel
• Review drawings, specifications, and scope documents to ensure accurate and complete estimates
• Collaborate with project management, engineering, and construction teams to validate assumptions and execution strategies
• Develop pricing for lump sum, unit rate, and time-and-materials proposals
• Develop construction schedules in Microsoft Project
• Analyze subcontractor and vendor quotes, ensuring alignment with project scope and estimating standards
• Identify project risks, exclusions, and value-engineering opportunities
• Support bid reviews, estimate reconciliations, and post-bid handoff meetings
• Maintain estimating databases, historical cost data, and productivity benchmarks

What You'll Bring

• Bachelor’s degree in Construction Management, Engineering, or related field. OR 10 years experience in lieu of degree.
• 10+ years of estimating experience in industrial construction, with a strong focus on mechanical/piping scopes
• Proven experience estimating midstream and downstream Oil & Gas projects (terminals, plants, pipelines, facilities)
• Strong working knowledge of civil and structural construction methods and cost drivers
• Advanced proficiency with Trimble Accubid and Microsoft Excel
• Ability to interpret P&IDs, isometrics, civil drawings, and structural plans
• Strong analytical, organizational, and communication skills
• Experience supporting EPC or design-build project delivery models, preferred
• Minimal travel for pre-bid site visits.

What You'll Get

As a Quanta Services employee, we offer a wide range of benefits to fit your needs.

• 401(k) with immediate matching and vesting
• Fully comprehensive benefits packages; Medical, Dental, Vision
  • Your choice of PPO, HSA, FSA
• Short term and long term benefits
• Employee discounts on consumer goods

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Equal Opportunity Employer

All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, national origin or ancestry, sex (including gender, pregnancy, sexual orientation, and/or gender identity), age, disability, genetic information, veteran status, and/or any other basis protected by applicable federal, state or local law.We are an Equal Opportunity Employer, including disability and protected veteran status. We prohibit all types of discrimination and are committed to providing access and equal opportunity for individuals with disabilities. For additional information or if reasonable accommodation is needed to participate in the job application, interview, or hiring processes or to perform the essential functions of a position, please contact us the Company’s Human Resources department.