Mobilization Is a Bid Line Roofers Name Differently, So Compare It First

A roof bid is usually a stack of lines: tear-off, underlayment, shingles, flashing, cleanup, and somewhere near the top a line for getting the job started. Some roofers call it mobilization. Others call it setup, job start, or crew move-in, and some fold it into labor. The name matters less than what the line covers, because it usually pays for the truck, the dumpster delivery, the ladders, the hoist if one is needed, and the hours before the first shingle comes off. If two bids differ on this line, the totals will not compare cleanly until you know why.

This page is for a St. Louis homeowner who has two or three written bids on the table and is trying to decide which one to take. The question here is narrow: what does each roofer's mobilization line include, and where does it end?

Roofer comparison

Start by finding the line on each bid. Some proposals list it plainly as mobilization or job setup. Others hide it inside a general labor figure, or split it across a delivery charge and a dumpster charge. A few bids have no line at all, which does not mean the work is free. It means the cost sits somewhere else on the page, and you need to find it.

Once you have the line, write down three things for each bid: the dollar amount, what the amount is said to cover, and whether it is a flat fee or tied to a number. A flat fee is simple. A line tied to crew days or hours is different, because a longer tear-off can raise it.

Next, check what sits beside it. A roofer who prices mobilization separately may also list separate lines for material delivery, the dumpster, and permit handling. A roofer who folds everything into one number may carry the same costs, just shown in a different place. Compare the sum of the related lines across bids, not one line against another.

What it costs

Mobilization is usually a modest line next to the shingles, decking, and labor, but it is not a small one on a St. Louis house with a tight lot. A roof on a corner lot in a dense neighborhood, or on a lot where the trucks have to stage a block away, can need more setup time than a roof with a wide driveway at the curb. That extra time should show up somewhere in the bid, and it is fair to ask where.

Watch for a line that grows with the calendar. If the bid says the mobilization charge is per day of setup, ask how many days it assumes and what happens when the crew comes back on a later day to finish flashing or cleanup. If the line is flat, ask whether a return visit after a weather stop is billed again. Either answer is acceptable as long as it is written down.

Also ask whether the mobilization figure changes if the start date moves. Bids written in fall for a spring start sometimes carry a price that was set against last year's delivery costs. The number may still be correct, or it may need a refresh. A written answer tells you which.

What to ask

Put these questions to each roofer in the same words, and write down the answers as they come:

• What is the exact name of the line on your bid, and what does it cover from the first truck to the last rake?
• Is it a flat fee, or does it depend on days, hours, or the size of the roof?
• Does it include the dumpster placement and the first pickup, or is that a separate line?
• If a hoist, a lift, or a second truck is needed, is that inside this line or added on?
• If the crew has to come back for a weather stop or a missed flashing, is mobilization billed again?
• Does the number hold if the start date moves into a different month?

Write the answers next to each bid. A roofer who answers in the same terms as the bid is giving you something you can compare. A roofer whose answer differs from what the bid says is giving you a reason to ask for a revised page.

Why the wording matters on a St. Louis roof

The freeze-thaw cycle is a reason to pay attention to what the setup line covers in late fall and early spring. A roof started in a cold week may need extra time to stage materials on a frozen lawn, and a thaw can leave soft ground that changes where the trailer can sit. A bid that says nothing about those conditions is not necessarily wrong, but it leaves the question open. Ask how each roofer treats a delay caused by the weather, and whether that delay touches the mobilization line.

Hail season has its own effect. After a storm, the crews that take calls can be busy for weeks. The setup line on a bid written in that rush may not match the time the crew will actually spend on your lot, especially if the work is scheduled between other jobs. Ask each roofer how many days their mobilization figure assumes and whether the crew will arrive once or in pieces.

Permit timing matters too. In St. Louis County, a roof may need approval from the municipal permit desk before the trucks arrive, and a delayed approval can push the start. If the bid's setup line is tied to a start date, ask what happens to that line when the start moves because the permit is still open. The permit process does not change your bid, but your bid should say what happens to the number when the calendar does.

What a written answer looks like

A good answer names the line, names what it covers, and names what would change it. For example, a roofer might say the mobilization line covers the crew's truck, equipment staging, ladder setup, and dumpster placement for a single start, and that it is a fixed figure unless the start moves past a stated date. That answer can be checked against the bid, and it can be compared with another roofer's answer, which is the point.

A vague answer sounds like this: the setup is included, it is just part of the job. That may be true, but it gives you nothing to compare. Ask again, in writing, and say you are comparing bids.

Keep the answers together with the bids. If a roofer's answer later changes, you will have the dated version to hold against the new one. The same habit applies to any line you ask about, whether it is the mobilization charge, the dumpster, or the cleanup.

Where to start

Before you add up any totals, pull the mobilization line from each bid and set the three answers side by side: the amount, the coverage, and the rule that moves the number. Then compare the related lines that sit beside it. Only after that should you read the totals. If a roofer cannot show you where the setup cost sits on their own paper, that is worth noting before you sign.

If you have questions about the bid you are holding, Keys Roofing can be reached at (314) 220-2333. Ask the same questions you asked the other roofers, and compare the answers on paper.