Mobilization costs are the expenses a contractor carries to start a job: moving equipment, setting up the site, insurance paperwork, first materials and early payroll. Wrenpeak Lending Group, a small-business funding broker in Lake Charles, Louisiana, explains how Calcasieu Parish contractors can size and fund that gap; lending partners make every credit decision and set every rate and term.
Why mobilization hits small Calcasieu Parish, LA contractors hardest
Calcasieu Parish had 419 construction employer establishments in 2023, and 205 of them had fewer than five employees; 266 were specialty trade contractors (U.S. Census Bureau, County Business Patterns 2023). Another 1,684 construction businesses in the parish ran with no paid employees in 2024 (U.S. Census Bureau, Nonemployer Statistics 2024), a separate program and year. Small firms like these rarely have the cash reserves to carry several weeks of job costs without strain, so the start of a large job is often their tightest moment.
What is included in mobilization costs?
- Hauling equipment to the site, or renting what you do not own.
- Site setup: temporary facilities, fencing, power and storage.
- Initial materials and deposits on items with long lead times.
- Early payroll and any travel or lodging for the crew.
- Paperwork required before work starts, such as insurance certificates.
- Demobilization at the end, which some contracts price separately.
Which of these you can bill as mobilization, and when, depends on the contract.
Mobilization as a percentage of construction costs
Many contracts include a mobilization line item, sometimes expressed as a percentage of the contract value and sometimes capped. There is no single standard; the owner or general contractor sets it, and some contracts pay it only after certain work is complete. Read three things in your contract: the mobilization amount or percentage, when it can be billed, and what must be done before it is paid. The answer decides how much of the start-up cost you carry yourself.
How to calculate the working capital a job needs
- List every cost due before the first payment arrives: payroll by week, materials by delivery date, equipment and setup.
- Add the expected payment dates from the contract, allowing for the general contractor's own pay cycle.
- Subtract any mobilization payment and the date it should arrive.
- Subtract retainage from each progress payment, since it is held until completion.
- The largest running shortfall is the working capital the job needs.
Do this for each active job, then add them up by week. Overlapping jobs often create a bigger gap than any single one. Keep the worksheet; a partner reviewing a line of credit request will ask for something very like it, along with the contracts behind it.
Funding the gap
A revolving business line of credit fits contractors who mobilize several times a year: draw at the start, repay when the first progress payment clears. A specific one-off gap can be bridged with working capital. If the job needs a machine you do not own, equipment financing keeps that cost out of the job's cash flow by spreading it over the machine's working life.
Contractor and construction financing covers what partners look for, including the backlog and receivables reports they usually request.
Questions to ask before you bid
- Is there a mobilization line, and when can it be billed?
- How long is the general contractor's pay cycle after a pay application?
- How much retainage is held, and when is it released?
- What equipment will you need that you do not own?
- Does this job overlap the busiest weeks of another?
Calcasieu Parish business counts put construction among the parish's six largest sectors. The rest of our notes for owners are on the Wrenpeak blog.
By Wrenpeak Lending Group · Updated