You loaded the van before six, rolled at 6:07, and stood on the fourth floor east at 6:52. The ceiling grid wasn't hung.
The super said give it a week. Two electricians turned around, drove back, and unloaded at the shop.
Nine days later you did the whole trip again. Now you're on the invoice deciding whether to add a line for the wasted one.
That line is an electrical contractor mobilization and remobilization charge, and on most commercial jobs it is a legitimate charge. When it gets rejected, the dollar amount is usually not the problem.
The problem is that the line reads Remobilization — $815.50 — the example trip priced out below — and there is nothing behind it. The GC's PM has no way to reconstruct what happened, so it reads like padding.
The charge was fair. The explanation was missing.
This post gives you the whole method: what remobilization is, what a return trip actually costs an electrical sub, the causation test that decides whether it's billable, the record that makes it collectible, contract wording you can paste into your next proposal, and what to send when the PM says no.
What Is a Mobilization Charge, and When Does It Become a Remobilization?
Mobilization is the cost of getting your crew, tools, material and equipment to a jobsite and set up to work. Remobilization is doing all of it again after you have already mobilized once and left.
On a prime contract, mobilization is normally a schedule-of-values line item billed on the first pay application — the AIA G702/G703 format most GCs use.
Federal construction contracts spell it out. DFARS 252.236-7004 pays a portion of the mobilization and demobilization price when equipment is mobilized and holds the balance until demobilization is complete.
None of that helps an electrical sub much, because a sub rarely gets to set a line on pay application one. Your remob shows up later, as a change order or a T&M ticket, on a job that has already started.
| Term | What it covers | How it usually gets billed |
|---|
| Mobilization | First arrival: crew, tools, gang box, lift, material staging, badging, site orientation | SOV line item on the first pay application, or built into the bid |
| Remobilization | Returning to a site you already mobilized to and left | Change order or T&M ticket, unless pre-negotiated as a unit price per trip |
| Demobilization | Pulling off: de-staging carts, releasing lifts, hauling the box out, site cleanup | Paired with mobilization, or held as retainage-style release at closeout |
| Trip charge | A flat fee for showing up, common in service work | Standing rate on the service agreement, per visit |
A trip charge and a remobilization are cousins, not twins. A trip charge covers the truck showing up; a remobilization covers the truck, the crew, the equipment re-delivery, the re-staging, and the lost restart.
Why Electrical Subs Mobilize Eight Times on One Job (and Bill for One)
Electrical is a phase trade. You are not on a job once — you are on and off it for the life of the schedule, and each return is its own small mobilization.
Some of those returns are planned and priced into the bid:
- Temp power and site distribution
- Underground and slab rough
- Wall rough-in
- Ceiling rough above grid
- Gear set and terminations
- Trim, devices, fixture hang
- Final, inspection, and punch
- Warranty callbacks after closeout
Then there are the unplanned ones, and those are where the argument lives:
- The ceiling grid wasn't hung when you were called in
- Drywall wasn't closed, or was closed early over your rough
- The slab wasn't poured, or the trench wasn't open
- Gear or fixtures weren't on site
- The floor was locked, no elevator, no lift access
- Another trade's inspection failed and stopped the sequence
- The GC pulled you in early to look busy for an owner walk
That last part is the whole issue. Half-day trips nobody documented look like nothing on the day and look like an invented number in month four.
What a Remobilization Trip Costs an Electrical Sub (Worked Example)
A remob trip costs far more than the hours your crew stood on site, because most of the cost happens off site: drive time, load and unload, equipment re-delivery, material restocking, and the slow first hour back.
Here is the arithmetic with every input visible. These are example numbers, not a benchmark — swap in your own crew size, bill rate, drive time, and equipment.
Example inputs: two electricians, 45-minute drive each way, one van, one scissor lift released back to the rental house on this trip and redelivered nine days later, $600 of material returned to the supply house. Example clock: load and stage at the shop 5:37a–6:07a, depart 6:07a, arrive on site 6:52a, on site 6:52a–7:37a, depart 7:37a, back at the shop 8:22a. That is 2.75 hours each, which is exactly what the table below bills.| Cost component | Example input | Example amount |
|---|
| Round-trip drive time | 2 electricians × 1.5 hr = 3.0 crew-hr @ $95/hr | $285.00 |
| Load and stage at the shop | 2 × 0.5 hr = 1.0 crew-hr @ $95/hr | $95.00 |
| On-site assess, de-stage carts, secure | 2 × 0.75 hr = 1.5 crew-hr @ $95/hr | $142.50 |
| Van roll | Flat $65 per trip | $65.00 |
| Scissor lift redelivery | Second delivery + new weekly rental minimum | $180.00 |
| Material restocking | 8% restocking fee on $600 returned | $48.00 |
| Example total for one return trip | $815.50 |
Two things that table does not capture, and you should price them separately or fold them into a minimum.
Restart loss. The first hour back is not full production. You re-open the box, re-find your circuits, re-verify terminations you already made, and re-confirm nothing walked off. On a floor you left half done, that is real time. Re-badging and orientation. On secured or union-controlled sites, a returning crew often re-badges, re-signs, or sits through a site-specific orientation again. Thirty minutes per man, per trip, is common enough to write into the rate sheet.The clean way to handle both is a stated minimum: two hours per worker per remobilization trip, plus actual travel, plus documented equipment and restocking charges. Put that number in the proposal so it is agreed before it is owed.
Billable or Absorbed: The Causation Test
A remobilization is recoverable when the reason you left and came back was outside your control. It is absorbed when the cause was your own incomplete or defective work.
That is the whole test — the same test a constructive-change argument turns on: whether the condition that stopped you was one you controlled. Run every trip through it before it goes on the invoice.
| Why you had to come back | Whose condition it was | Typical treatment |
|---|
| Another trade's work not complete (grid, drywall, slab, ceiling) | GC sequencing | Billable — change order or T&M ticket |
| No access, no elevator, no lift, area locked | GC site control | Billable |
| Owner-directed change or scope hold | Owner | Billable — change order |
| Owner-furnished gear or fixtures not delivered | Owner / GC | Billable |
| GC called you in ahead of the agreed date | GC | Billable, if you can show the confirmed call-in |
| Your inspection failed on your own work | You | Absorbed |
| Your material wasn't ordered or wasn't on the truck | You | Absorbed |
| Your crew missed devices and has to return to finish | You | Absorbed |
| Warranty callback on a defect in your install | You | Absorbed |
| Warranty callback that turns out to be someone else's damage | Other party | Billable, if you documented what you found |
Notice that the same record works in both directions. If the GC ever back-charges you for a delay, the trip log that proves the grid wasn't hung on August 4 is your defense, not just your invoice backup.
Be honest with the absorbed column. A contractor who bills only the trips he can defend gets the defensible ones approved faster than one who bills all of them and gets the whole batch challenged.
Two Ledgers: What You Charge the GC and What You Owe the Electrician
One wasted trip creates two separate obligations, and they are not the same number. Keep them on separate lines, in separate systems, and never let one justify the other.
The billing right is what you can charge the GC for the wasted mobilization: crew time, travel, equipment, restocking, minimums. The payroll obligation is what you owe the electrician who showed up and got sent home. That is governed by your state's reporting-time or show-up-pay rules and your CBA if you have one — not by whether the GC ever pays your change order.You may owe the man show-up pay under your state's reporting-time rule and still recover the example trip's $815.50 from the GC (two electricians, 45-minute drive, van roll, lift redelivery, 8% restocking on $600 — itemized above). You may owe him show-up pay and recover nothing, because the trip was your own miss. Those outcomes are independent.
Two related posts go deeper on each side: what you owe a worker sent home covers the payroll obligation, and charging for the wait on site covers standby, which is what you bill when the crew stays instead of going home.
The Record That Makes a Remobilization Charge Collectible
A remob charge sticks when you can show, dated the day it happened, why you left, who was on the truck, what you found, and what you did about it.
Look at the same trip billed two ways — the example trip priced out above. Same crew, same day, same dollars.
What loses:Remobilization ....................... $815.50
Remobilization — Bldg A, 4th Flr East — return trip 8/04
Reason: Area not ready at scheduled start; ceiling grid not installed.
Notified: J. Ruiz, GC superintendent, on site 6:52a 8/04, released crew for day.
Crew: 2 electricians, 5:37a–8:22a (2.75 hr each, incl. shop load and travel).
Work done: De-staged 2 carts and gang box to 4th flr storage; released
scissor lift to rental; verified circuits 12–18 left terminated
and capped.
Equipment: Van roll; lift redelivered 8/13 (second delivery + rental min).
Backing: Field trip log 8/04, photo 6:51a of open grid, RFI-041.
Amount: $815.50 — see T&M ticket 1187
Identical charge. The second one is not more expensive, it is more explainable. The PM can check every line against his own daily report, and once he can check it, he stops treating it as a negotiation.
Six fields carry the whole thing:
- Date and clock times — arrival, notification, departure
- Who was on the truck — names, count, classification
- Why you returned or why you left — the condition, in plain words
- What you found — the specific incomplete condition, not "not ready"
- What you did — de-staged, released, verified, secured
- Who you told — name, title, time, and how (in person, text, email)
If you want to see what documented labor backup looks like as a finished page a customer can read, there is an annotated sample billing packet with no signup on it.
The Hard Part Is Getting Anyone to Write It Down
None of this is difficult. It is just that the moment a remob record needs to be written is the worst possible moment to ask anyone to write anything.
The crew is annoyed. They got up at five for nothing. They are in the van, the radio is on, and the last thing on anybody's mind is documentation.
So make it one line, said out loud, before the van pulls out of the lot:
"6:52, fourth east, grid's not up, Ruiz sent us home, we pulled the two carts and released the lift."
One man types that into the crew group text. The phone timestamps it for free, and the text thread is dated evidence nobody edited later.
That is the entire discipline. Not a form, not a portal, not a meeting — one sentence, before the truck moves, while everyone can still see the condition out the windshield.
Anything longer than that gets skipped, and a skipped record is a charge you will not bill.
How to Bill It: T&M Ticket, Change Order, or a Negotiated Remob Line
Which path you use depends on your contract type, and picking the wrong one is how a good charge gets rejected on a technicality.
| Contract type | How the remob rides | What has to happen first |
|---|
| Lump sum / fixed price | Change order request | Written notice of the condition, usually within the notice period in your subcontract |
| T&M | Line on the T&M ticket for the trip date | Signed or acknowledged ticket the same day, with the condition stated on it |
| Unit price / service agreement | Stated trip charge or remob unit price | The unit price is in the agreement before the trip |
| Pre-negotiated remob allowance | Draw against the allowance, itemized per trip | Allowance and per-trip rate agreed at contract signing |
The best of these is the fourth, because the argument happens at signing instead of at invoicing. Ask for a remobilization allowance on any job with a phased or stacked schedule, and offer to return the unused portion. The GC is agreeing to a capped number he can carry in his own budget, not to an open-ended charge he will have to defend to the owner later.
On lump-sum work, the sequence matters more than the wording. Notice first, then the trip record, then the change order request with the record attached — not a change order that shows up cold.
If your super already got a verbal yes on site, write it up the same day and send it. Verbal change order documentation covers the same-day confirmation email that turns a hallway conversation into something enforceable, and change order time tracking for electrical subs covers keeping change hours separate from base-contract hours so the billing doesn't blur.
Contract and Proposal Language You Can Copy
Most remob fights happen because the subcontract is silent. Put these in your proposal and they get negotiated once, in an office, instead of ten times in a hallway.
This is example wording to adapt, not legal advice. Have your attorney review anything before it goes into a signed subcontract.
Site readiness / return trip clause:Work is scheduled in phases per the attached sequence. If Contractor's crew arrives at a date and time confirmed by Contractor and the work area is not ready for the scheduled electrical scope — including ceiling grid not installed where above-grid rough is scheduled, walls not framed or not closed ahead of rough-in, slab not poured or trench not open, gear or fixtures not delivered, energized-panel access not provided, temporary power not available, or a preceding trade's inspection not passed — Contractor will notify the Owner or General Contractor in writing the same day, and the resulting return trip will be billed as a remobilization at the rates in Exhibit A. No remobilization charge applies where the cause is Contractor's own incomplete or defective work.Minimum trip charge:
Each remobilization is billed at a minimum of two (2) hours per worker at the applicable labor rate, plus travel, plus actual equipment redelivery charges, lift and rental minimums, and material restocking fees supported by supplier invoices.Notice provision (the one that makes GCs comfortable):
Contractor will provide notice of any condition giving rise to a remobilization charge within two (2) business days of the affected trip, with the field trip record attached. Remobilization charges not noticed within that period are waived.
That last clause looks like it costs you something. It buys you more than it costs, because it tells the GC he will never be surprised by an old charge, and it forces your own shop to write the record while it is still true.
T&M work authorization line, for the bottom of the field ticket:Signature confirms the crew, hours, and site conditions recorded on this ticket as observed. Signature is an acknowledgment of the record only and is not an admission of liability for the underlying condition.
That second sentence is why supers sign. A super will not sign a line that reads like agreeing to pay. He will sign a line that says he saw an open ceiling grid at 6:52, because that is a fact he can defend to his own PM.
What to Send When the GC Says No
The standard rejection is "we're not paying a trip charge, that's your cost of doing business." Answer with the record, not with an argument.
Send the trip log, the photo, and the notice, with a short note like this one, written from the example trip above:
Attached is the trip record for 8/04. Our crew arrived at 6:52a for the scheduled ceiling rough on 4E. The grid was not installed, and your superintendent confirmed the area was not ready and released the crew for the day. We de-staged two carts and released the scissor lift, which we redelivered on 8/13 at a second delivery charge.>
Our scope and crew were ready on the date you confirmed; the area was not. The charge is $815.50 under the return-trip provision of our subcontract, itemized on ticket 1187 with supplier and rental invoices attached.>
If it's easier going forward, we're glad to hold each phase until you release the area in writing. That costs both of us less than the trip did.
Three things make that note work. It states a checkable fact, it names the person who was there, and it ends with a way to prevent the next one instead of a demand.
If the charge is disputed rather than refused, what an invoice argument actually costs walks through pricing out the back-and-forth so you can decide whether to hold the line or trade it for something on the next job.
A Remobilization Trip Log You Can Start Monday
You do not need software to do any of this. You need one row per trip, filled in before the van leaves the site.
Keep these columns:
| Column | Example entry |
|---|
| Date | 8/04 |
| Job / area | Bldg A — 4th Flr East |
| Trip # this job | 3 |
| Crew (names, count) | M. Alvarez, D. Cole — 2 |
| Left shop / arrived / left site | 6:07a / 6:52a / 7:37a |
| Condition found | Ceiling grid not installed, 4E |
| Who confirmed / released | J. Ruiz, GC super, on site 6:52a |
| Work performed | De-staged 2 carts + box to storage; released lift |
| Equipment / material impact | Lift redelivery 8/13; $600 returned to supply house |
| Cause code | Others' work incomplete — billable |
| Photo / RFI ref | IMG_0651; RFI-041 |
Run it on a clipboard in the truck, in a shared spreadsheet, or in the crew group text — the format matters far less than whether it gets filled in the same day. Some shops run it out of a phone app instead; FieldTimesheet is one, where the app asks "what did you work on?" at clock-out and the note prints on a customer-facing billing packet next to the hours and the bill rate. Pick whichever version your crew will actually use, because a paper log that gets filled in beats a system that doesn't.
The T&M Billing Backup Kit has printable sheets that pair with this — a labor backup sheet, a daily field report, a change-order log, and a T&M work authorization — and there are more free timesheet templates if you just need something to hand the foreman tomorrow. Nothing is gated.
If you want the accounting side of it, job costing for electricians covers pulling these trips into your cost per phase so the next bid carries the right number of mobilizations instead of one.
Frequently Asked Questions
How much should an electrical contractor charge for a remobilization trip?
Charge what the trip costs, itemized, rather than a round number. Build it from crew hours including travel, a van or truck roll, equipment redelivery and rental minimums, material restocking, and a stated minimum per worker.
Using the example inputs above — two electricians, 45 minutes each way at a $95/hr bill rate, one van roll, one lift redelivery, and 8% restocking on $600 — the trip works out to about $815. Run it with your own rates and drive times; the point is that every number on the line can be checked.
Is a trip charge the same as a remobilization charge?
No. A trip charge is a flat fee for showing up, common on service agreements, and it usually covers the truck and a short window of labor.
A remobilization covers everything involved in re-establishing the crew on a job you already mobilized to: travel, re-staging, equipment redelivery, restocking, re-badging, and lost restart time. On construction work, a flat trip charge almost always under-recovers.
Can I bill a remobilization charge on a fixed-price job?
Yes, but it has to ride as a change order, not as an extra line on the invoice. On lump-sum work your contract price covers your scope, so the recovery comes from the condition that changed — the area not being ready, the access not being provided, the owner-directed hold.
Give notice within the period your subcontract requires, attach the field record, and submit it as a change order request. A remob that first appears as a surprise invoice line on a fixed-price job gets rejected on process alone.
Can I charge for remobilization if my contract doesn't mention it?
You can ask, and it is worth asking, but a silent contract puts the whole weight on your documentation and your relationship. Without a clause, you are arguing that the condition was a constructive change and that you are owed the added cost.
That argument is won or lost by the record: same-day notice, a dated field log, a named person who released the crew. Then put a return-trip clause in your next proposal so the next one isn't a negotiation.
What documentation do I need to prove a remobilization charge?
Six things, all dated the day of the trip: clock times, crew names, the specific condition you found, what you did about it, who confirmed it, and any equipment or restocking invoices generated by the trip.
A photo of the condition with the phone's own timestamp is worth more than a paragraph written later. So is a same-day text or email to the superintendent, because it proves the notice happened when you say it did.
Who pays remobilization when another trade caused the delay?
You bill the party you have a contract with, which for a sub means the GC. Whether the GC then back-charges the drywall contractor or the owner is his problem, not yours, and you should not wait on that resolution to submit.
What you owe him is proof that the condition existed and that it wasn't your work. That is exactly what the trip log is for.
Is remobilization a change order or a T&M ticket?
It depends on the contract. On T&M work it is a line on the ticket for that trip date, signed or acknowledged the same day. On lump-sum work it is a change order request, preceded by written notice.
On a service agreement or unit-price contract it should be a stated remob or trip unit price agreed before the work starts, so nothing has to be argued after the fact.
What do I say when the customer says "you already billed me to mobilize"?
Say that the first mobilization got the crew to the job, and that this line is a second trip that happened because the area wasn't ready on the date they confirmed. Then show the two dates side by side.
The objection almost always dissolves when they can see that trip one and trip three are different days with different conditions and a named person who sent the crew home. It survives when the invoice says "remobilization" and nothing else. T&M billing best practices covers the same principle applied to the rest of your invoice.
The Point
A remobilization charge is not a fee you invent when a job goes sideways. It is the real cost of a trip that produced no installed work, and on most jobs it is recoverable.
What makes it recoverable is not the number. It is a sentence written in the van at 6:52 in the morning, while two electricians can still see the open ceiling grid through the windshield.
Write that sentence every time, and the charge stops being a negotiation.