Every Electrical Construction Contractor should have sample estimates and guides for training new estimators and updating experienced estimators. Lack of time often prevents the preparation of such material, with the result that many unnecessary mistakes are made and much estimating time is lost.
Electrical Construction Estimating is a process with proven functions and calculations which take into account not only material prices but also the productive efficiency of the total business.
Successful Electrical Construction Estimating allows for constant changes in methods of construction, tools, equipment, and many other items that affect labour costs and must constantly conduct labour-cost studies in order to know the efficiency of the electrical installation methods.
The functions of an electrical estimate are difficult to outline the various parts of the electrical estimating system. In general we can list them under certain categories:
1. Electrical Estimator Requirements:
The following attributes of an electrical estimator should be natural possession that training and experience will develop:
Ingenuity and Initiative. Estimators have to be ready to meet varying conditions by creating new methods of installing materials and expediting work.
Diplomacy and Tact. Keeping in harmony with the organization, contacting customers, expediting work, and handling workers, all require diplomacy and tact.
Vision and Imagination. To establish labour costs accurately, one must be able to visualize working conditions and to calculate what effect the activities of other trades will have on progress of the work he/she is estimating.
An Analytical and Creative Mind. Detailed drawings are not always supplied. Careful analysis of the situation is required. There are no labour units that universally applicable to all work.
Self Confidence and Fortitude. Contracting is basically a gambling Business. The job is figured out and the bid made on a gamble that the work will follow the anticipated schedule. The way to improve results is to proven established labour units for different installations conditions.
Executive and Promotional Ability. Being familiar with phases of the work, an estimator was usually the logical person to be put in charge of such an organization.
2. Electrical Estimating Tools:
Essential electrical estimating tools are:
- A desk to accommodate A1 size
- Scale Ruler with common scales of 1:100; 1:200; 1:500
- Metric Scale Map measuring wheel for measuring lengths of cables, cable ladder/tray, conduit
- Highlight pens of various
- Pencils and eraser
- Standard Calculator
- AS/NZS3000:2007 Wiring Rules
- AS/NZS3008.1.1:2009 Electrical installations – Selection of cables
- Laptop Computer to accept Microsoft Word and Excel programs
- Access to Internet for sending and receiving emails, and use File Sharing Software such as DropBox.
- Electrical Estimating Software System
3. Provision of notes and records:
Taking notes and highlighting important items in the electrical specification and drawings become useful for material procurement, establishing labour costs and analyzing the project as a whole.
A preliminary study of the electrical specification and drawings usually gives the electrical estimator a good idea of the job whether or not the job will fit into the organizations program.
4. Project requirements:
- Duration of the project
- Scheduling number of electricians required
- Potential hazards:
- Electrical Safety
- Delays to the project caused by other trades
- Weather conditions
- Cost of procuring material
- Cost of labour requirements
- Extension of time restrictions
5. Technical electrical design verification requirements:
Checking specification and drawing to statutory standards and design outcomes.
6. Establishing estimated quantities and costs such as:
- Material quantities and costs
- Direct labour costs for different installation conditions
- Indirect labour costs such as supervision and job
- General overhead costs such as administration and
7. Take off quantity and subcontract
Evaluation is required whether sections need to be subcontracted out or do the activities in-house.
8. Obtain and evaluate prices.
Comparing material prices between suppliers and subcontractors not only best price but delivery capabilities and past history.
9. Co-ordination and phase review
Estimate phase reviews will need to be carried out throughout the tender such as:
- Register tender and categorize
- Do we tender?
- Review Tender – Technical and Commercial
- Technical Review and breakdown
- Is submission satisfactory?
- Co-ordination meeting; review of the total tender information prior to
10. Electrical Estimating Training
ARE YOU READY TO GO TO THE NEXT LEVEL IN ELECTRICAL ESTIMATING FOR DOMESTIC, MULTIPLE DOMESTIC, COMMERCIAL AND INDUSTRIAL CONSTRUCTION PROJECTS?
If your answer is YES then our simple-to-use step-by-step training is for you!
You have two options:
Option 1. is the online training click the link below:
Online Electrical Estimating Course
Option 2. is the face-to-face with ELECTROGROUP click the link below to send your expression of interest: ELECTROGROUP By the Industry, For the Industry