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Construction estimators

OaSIS code 22303.00

Construction estimators analyze costs of and prepare estimates on civil engineering, architectural, structural, electrical and mechanical construction projects.


Also known as

  • Chief estimator - construction
  • Construction estimator
  • Cost estimator - construction
  • Principal estimator - construction
  • Professional quantity surveyor
  • Quantity surveyor - construction

Main duties

This group performs some or all of the following duties:

  • Prepare estimates of probable costs of materials, labour and equipment for construction projects based on contract bids, quotations, schematic drawings and specifications
  • Advise on tendering procedures, examine and analyze tenders, recommend tender awards and conduct negotiations
  • Establish and maintain tendering process and set up cost monitoring and reporting systems and procedures
  • Prepare cost and expenditure statements and forecasts at regular intervals for the duration of a project
  • Prepare and maintain a directory of suppliers, contractors and subcontractors
  • Liaise, consult and communicate with engineers, architects, owners, contractors and subcontractors, and prepare economic feasibility studies on changes and adjustments to cost estimates
  • Manage and coordinate construction projects and prepare construction progress schedules.

Additional information

  • Progression to more senior positions in this unit group, such as senior estimator or to construction management positions is possible with experience.
  • Estimators may specialize in estimating costs for structural, electrical or mechanical construction projects.

Similar occupations classified elsewhere


  • Civil engineers (21300)
  • Architectural technologists and technicians (22210)
  • Civil engineering technologists and technicians (22300)
  • Construction managers (70010)

NOC hierarchy breakdown

NOC version

NOC 2021 Version 1.0

Broad occupational category

2 – Natural and applied sciences and related occupations


2 – Occupations usually require a college diploma or apprenticeship training of two or more years; or supervisory occupations

Major group

22 – Technical occupations related to natural and applied sciences

Sub-major group

223 – Technical occupations related to engineering

Minor group

2230 – Technical occupations in civil, mechanical and industrial engineering

Unit group

22303 – Construction estimators

Occupational profile

22303.00 – Construction estimators

Work characteristics

Work characteristics gathers the various components describing the work environment of each occupation, such as employers, work activities, and the work context. Each category displays up to 10 descriptors in descending order based, firstly, on their attributed ratings by the level of complexity (for Work Activities) or other measurement dimensions (for Work Context), and secondly, in alphabetical order. The whole list of descriptors and their ratings can be expanded at the bottom of each page.

Work Activities

Proficiency or complexity level
Analyzing Data or Information
5 - Highest Level
Estimating the Quantifiable Characteristics
5 - Highest Level
Clerical Activities
4 - High Level
Communicating with Persons Outside Organization
4 - High Level
Getting Information
4 - High Level

Work Context

Structural Job Characteristics

Structured versus Unstructured Work
Degree of freedom to determine tasks and priorities
3 - Moderate amount of freedom
Work Week Duration
Worked hours in a typical week
2 - Between 35 to 40 hours

Physical Work Environment

Physical Proximity
Physical distance from others
3 - Somewhat close (e.g. share office)

Physical Demands

4 - More than half the time
3 - About half the time
Bending or Twisting the Body
1 - Very little time

Interpersonal Relations

Contact with Others
4 - Every day, a few times per day
4 - More than half the time
Work with Work Group or Team
3 - Important
3 - Once a week or more but not every day


  • Commercial construction companies
  • Industrial construction companies
  • Major electrical, mechanical and trade contractors
  • Residential construction companies
  • Self-employed

Skills and abilities

This section displays the various competencies required for an occupation. Each category displays up to 10 descriptors in descending order based, firstly, on their attributed ratings by the level of proficiency (for Skills and Abilities) or importance (for Personal Attributes) and secondly, in alphabetical order. The whole list of descriptors and their ratings can be expanded at the bottom of each page.


Proficiency or complexity level
Mathematical Reasoning
5 - Highest Level
Numerical Ability
5 - Highest Level
Categorization Flexibility
4 - High Level
Deductive Reasoning
4 - High Level
Information Ordering
4 - High Level


Proficiency or complexity level
Management of Financial Resources
5 - Highest Level
Management of Material Resources
5 - Highest Level
4 - High Level
4 - High Level
Systems Analysis
4 - High Level

Personal Attributes

Analytical Thinking
5 - Extremely important
Attention to Detail
5 - Extremely important
4 - Highly important
4 - Highly important
4 - Highly important