How Roofing Contractors Leave 8–15% on the Table in Uncaptured Supplements

Most roofing contractors who run insurance restoration work believe they have a sales problem or a production problem. After working inside those P&Ls — including our own — I can tell you the more common reality: they have a documentation problem, and it's quietly costing them 8–15% of revenue on every job over $15,000.

What a supplement actually is

The carrier's initial scope is an opening offer, not a final number. It's written by an adjuster who spent twenty minutes on the roof — or who never left the office. Code-required items, steep and high charges, proper tear-off counts, drip edge, valley metal, ventilation matching: the gaps between what the adjuster scoped and what the job actually requires are recoverable. A supplement is simply the documented request to pay for the work the policy already covers.

The carriers know most contractors won't ask. The contractors who don't ask are subsidizing the ones who do.

Why the money leaks

Nobody owns it. The salesperson considers the job sold. Production considers it built. The office considers it invoiced. The supplement lives in the seams between those three, which means it lives nowhere.

Documentation happens too late. A supplement written after the shingles are on is an argument. A supplement built from photos taken during tear-off — decking condition, layer counts, code items exposed — is an invoice. The evidence window is measured in hours, and most crews are never told it exists.

Xactimate fluency is treated as optional. If your team can't speak the carrier's pricing language — line items, codes, and local price lists — every negotiation starts from the adjuster's version of reality.

What a working supplement system looks like

The fix is a workflow, not a hire. One person owns supplements end to end, with a checklist that starts at the initial inspection, a photo protocol the crew runs during tear-off, a 48-hour clock from build day to supplement submission, and a tracking sheet that treats every open supplement like a receivable — because it is one. On $15K+ insurance jobs, a functioning version of this system reliably recovers an additional 8–15% of contract value.

Run the math on your own book: if you did $4M in restoration revenue last year and captured supplements casually, the leak is somewhere between $300K and $600K — at nearly 100% margin, because the work was already performed.

The supplement isn't extra money. It's your money, sitting in the carrier's account, waiting for paperwork.

If you want to know what your own leak looks like, that's exactly the kind of thing a Quick Business Review surfaces in two business days — with your real numbers, not industry averages.