Supplement Writing That Recovers What Carriers Owe You

Carriers underpay every day. We find the missed line items, document them properly, and get you the money you're owed.

Why Choose Precision?

We Find What Carriers Miss

Carriers routinely underpay initial estimates. We audit every line item and identify every missed or underpaid scope item to build a complete supplement.

7,000+ Claims Experience

With thousands of supplements written, we know which items carriers fight and exactly how to document them to win approval.

Written by a Former Adjuster

Our team has worked on the carrier side before switching to advocate for contractors. That insider knowledge means stronger supplements.

Average Recovery Increase

Contractors who use our supplement service routinely recover thousands more per claim — money the carrier already owed them.

Fast Documentation

We deliver complete, ready-to-submit supplement packages quickly so you're not waiting on paperwork to close jobs.

White Label Available

We work under your brand. Your clients see only you — we handle everything behind the scenes.

Frequently Asked Questions

What is a supplement in insurance claims?

A supplement is a request to add or increase line items on an existing insurance estimate. Carriers often miss items, underprice materials, or leave off required code upgrades. A supplement recovers that money for the contractor and policyholder.

How much more can I expect to recover?

It varies by claim, but contractors typically see significant increases on supplemented estimates. We focus on documented, defensible line items — not inflated numbers that will get rejected.

What information do I need to provide?

We need the original carrier estimate, your inspection photos, Eagle View or Hover measurements, any subcontractor bids (if applicable), and notes on anything the adjuster missed during their inspection.

Will the carrier push back on supplements?

Some do. That's why our supplements are written with full documentation, code citations, and carrier-specific language that makes it hard for them to deny. We also offer carrier negotiation services if needed.

How long does supplement writing take?

Most supplements are completed within 24–48 hours of receiving all documentation. Complex commercial claims may take slightly longer.

Get Started

Send us a claim.
See what you've been missing.

No contracts, no minimums. Send us a scope of loss and we'll show you exactly what the carrier left off. If you like what you see, we'll talk about working together.

No contracts
No minimums
First claim reviewed free
Nationwide coverage
Precision Estimating and Supplements 612-800-7765 info@supplementestimator.com