Insights

Electrical Contractor Cash Flow: Service vs Construction

Service tickets pay in days; construction pay applications settle a month or two later, less retainage. How an electrical contractor's cash flow carries both.

Ask an electrical contractor how business is going and you can get two true answers from the same person. The service department is fine — trucks rolling, tickets closing, the card reader busy all week. The new-construction side is also fine — real backlog, bids still landing. And yet the account both sides share is tighter than either answer suggests. That is not a bookkeeping error. It is what happens to cash flow when two different receivable clocks run through one bank account.

The mix itself is the mechanic worth understanding. Service work and new-construction work are not just different job types — they are different receivable profiles, and the way they interact inside one shop explains most of the cash strain electrical contractors bring to us.

Service money moves in days; construction money moves in months

A service call converts to cash almost immediately. The ticket is priced, the work is done, and the customer pays at the door — card, check, or an invoice that clears within days. There is no approval chain, no lien-waiver exchange, no committee standing between finishing the work and being paid for it.

A new-construction contract runs on an entirely different clock. You bill monthly for work in place through a pay application; the application moves through the general contractor's review; payment lands thirty to sixty days later if everything is clean; and retainage — commonly five to ten percent of the contract — is withheld from every draw until final completion and acceptance. On the electrical scope specifically, the costs stack early: rough-in is material-heavy, and the wire, conduit, and gear get bought and installed months before the trim-out and final inspection that release the last of the money.

The service department quietly becomes the construction lender

Here is the part that catches mixed shops. When the construction book grows, the money that pays Friday payroll on those jobs does not come from those jobs — not for the first sixty to ninety days. It comes from wherever cash actually is, and in a service-and-construction shop, cash is the service department. Every week that construction work in progress grows, service tickets are funding it.

Run the shape with hypothetical numbers. Say the service side deposits a steady $60,000 a month, and the shop signs a new-construction contract that burns $50,000 a month in labor and material through rough-in. The first pay application goes in at the end of month one; the first draw lands, less retainage, in the middle of month three. In between, somewhere around $100,000 to $125,000 of construction cost has to come from somewhere — and the only other till in the building belongs to the service department.

This is why a mixed shop can feel poorest in its busiest quarter. The construction side's profit is real, but it is sitting in submitted-not-yet-paid applications and a growing retainage stack. What is spendable is the service float — and once that has been absorbed into construction work in progress, the whole shop is illiquid while both sides are profitable on paper. Owners usually say it in one sentence: busier than ever, and payroll is tight. It is one of the most common opening lines we hear from electrical contractors, and it describes a timing gap, not a failing business.

On a bank statement, the mix has a signature — name it

From the underwriting side, a mixed electrical shop produces a recognizable pattern: a steady floor of smaller card and check deposits running all month, with occasional five-figure draw spikes on top and quiet stretches while applications sit in review. Read cold, the spikes and the gaps look like volatility. Read with two lines of context — this share of revenue is service work, and these deposits are draws on these jobs — the same statement reads as structure. Consistency of deposits matters more to a decision than their size, and the service floor is the consistency.

That floor does real work in a funding decision. A payment has to be comfortable in a week when no pay application lands, and the weeks the service department reliably produces are what make that true. Two shops with identical annual revenue — one eighty percent service, one eighty percent new construction — are different files, because one of them has a floor a lender can size against and the other has mostly clocks and retainage.

Price the carry before you sign the next contract

1. 1

   Map the burn to the first clean draw

   Take the contract's monthly labor and material cost through rough-in, then count the months until the first pay application is actually paid — submission, plus review, plus payment terms. That total is what the job will borrow from the rest of the shop before it starts feeding itself.

2. 2

   Add the retainage stack across open jobs

   Retainage is earned money that sits outside your deposits until closeout, and with several contracts open at once the accumulated total can quietly approach a month of costs. Know the stack's number — it is the invisible half of the gap, and stating it makes your file more legible, not less.

3. 3

   Decide who funds the gap on purpose

   Three honest options: the service float, if it covers the deepest month with room left to keep the trucks stocked; working capital sized to that deepest month and paid down early when a heavy draw lands; or a pass on the bid. What does not work is the default — letting the service department fund it by accident.

One more thing worth knowing if you bridge with working capital: a shop paid in draws often finds itself able to clear a facility early when a heavy application lands. Ask your advisor about early-payoff discounts — they are negotiated rather than automatic, and project-paid businesses are often well placed for them.

When bridging the mix is the wrong move

A bridge assumes the far bank exists. Before funding the gap between service cash and construction receivables, be honest about which gap you actually have.

• If the construction jobs are underpriced — if closeout math on the last few contracts shows the service department did not just carry them but subsidized them — borrowing scales the loss. That is an estimating and terms problem, and the fix lives in your bids, not in capital.
• If the plan is to shrink service work to chase bigger construction tickets, weigh what you would be giving up: the receivable profile that pays this week. A shop that trades its floor for backlog is trading away the thing payroll — and a funding decision — can actually count on.
• If the money would go toward payments on an existing advance, that is stacking, and it turns a bridge into a hole. Pay a position down first, then revisit.

Where the mix is healthy and the gap is structural — real profit on both sides, slow clocks on one — this is exactly the shape revenue-based working capital fits: sized to the deepest month — and many project-paid shops choose to pay it down early when a heavy draw lands — with the service floor keeping the payment comfortable in between. The published basics are $250,000 or more in yearly revenue, a year or more in business, and funding from $10K to $350K sized to what your deposits support. Bring the mix named — service share, open contracts, retainage stack — and the file reads as structure rather than volatility. Complete files see money in as little as 24 to 48 hours. The mix itself does not need fixing — it needs to be named, measured, and funded on purpose.

Keep reading

Industry

Plumbing & Electrical Contractor Funding

Use case

Progress Billing and Cash Flow: The Mid-Project Gap

Glossary

Retainage

Calculator

Payment Fit Calculator