Mobilization Cost Gap in Electrical Deposit Sizing

How should an electrical contractor primarily determine the appropriate amount to charge a customer for a deposit or mobilization payment?

A deposit or mobilization payment is money the customer pays after field work on the electrical project has already begun.

Match each aspect of managing a mobilization payment to its practical description.

You have just signed a contract for a large commercial lighting upgrade and need to secure upfront funding to avoid cash flow issues. Arrange the steps you should take to properly establish and utilize a mobilization payment.

An electrical contractor analyzes the initial requirements for a new $60,000 contract. They determine that a standard 10% upfront charge ($6,000) will fall short of the $9,500 required for municipal permits, engineering coordination, and lift rentals. By rejecting the arbitrary percentage and instead invoicing the customer for the precise $9,500 needed to cover these actual pre-construction costs, the contractor is properly structuring the project's ____.

Three electrical contractors each win a $45,000 commercial tenant-improvement project requiring $2,400 in permits, $3,100 in engineering coordination, $4,200 in initial material procurement, and $1,800 in equipment rental before any field work can begin. Each contractor sets a different deposit policy:

• Contractor A charges a flat 10% deposit ($4,500) because it is a common industry rule of thumb. • Contractor B itemizes the actual pre-construction costs ($11,500) and invoices the customer for that exact amount as the mobilization payment. • Contractor C charges no deposit, planning to bill everything on the first progress invoice 30 days after work starts.

Which contractor's deposit policy is the most financially sound, and why?