Electrical Estimating Methods

Although each of these methods below offers advantages, not all advantages are created equal. Sometimes the sole advantage is speed, which is rarely the top objective when attempting to produce a great estimate where the details matter.

This is a game for experts. Although we don't advise using guesstimation as your first or even second line of defence, it can be effective if you're an expert at cutting a thin slice. However, if you've performed enough projects of a similar nature and have faith in the expertise of your team, guesstimation is a speedy method to get through the estimating process and get to work.

In the per-point calculation, each fixture counts for points with a fixed monetary value. This entails evaluating each and every piece of equipment used in the operation, from switches and sensors to lighting and fans. It also entails attaching the right dollar cost.

For instance, if you're estimating a project with a total of 90 points and you choose a point value of $100, your estimate for the project would be $9,000 in this case. 

The per-point method is rapid and provides the sense of analytical understanding. However, issues arise when taking into account the needs of a specific project. This approach is frequently overly generic, which can cause delays and money running out.

You'll need a thorough understanding of every area of the project, including labour costs, materials, equipment, and means and methods of design, in order to execute a design and construct process efficiently. Visual assistance are useful in this procedure. 

The complexity of this approach is a disadvantage because it will simply not work for every project or contractor.

The labour unit technique values the human labour necessary to install and repair hardware rather than placing a value on the hardware itself. 

This approach can more precisely reflect the amount of work needed to perform a specific assignment. Although it is more specifically customised to the specifics of each project, issues can still occur if the estimate does not take adverse working conditions into consideration.

As the units that go into the estimate are for a whole assembly or construction of a project, this method enables you to create more complex takeoffs. These assemblies account for all the supplies and labour needed to complete a project. 

The pre-build or assembly approach still carries the per-point method's and carries the possibility of inaccurate measurements. This makes sense because, in many respects, the pre-build method is merely a more intricate variation of the per-point method. In both approaches, missed external job costs for a project might reduce earnings.