Practical guides written for auto body shop owners and estimators — covering supplement writing, denied claims, OEM documentation, ADAS calibration, and more.
19 articles
Most supplement letters get denied not because the damage isn't real — but because the letter doesn't speak the adjuster's language. Here's the exact structure that works.
A denial isn't the end of the road. Here's the exact playbook for fighting a denied supplement — from writing a rebuttal letter to escalating to the state insurance commissioner.
Insurance companies deny ADAS calibration supplements more than almost any other line item. Here's the documentation strategy that gets them approved.
The fight for OEM parts is one of the most common supplement battles. Here's the language and documentation that wins it.
An estimate is what you think the repair will cost before you start. A supplement is what you discovered after you started. Confusing the two costs shops thousands of dollars.
State Farm processes more auto claims than any other insurer in the US. Here's what their adjusters look for — and how to give it to them.
The challenge with hidden damage isn't proving it exists — it's proving it couldn't have been seen before teardown. Here's how to document it properly.
Corrosion protection is required by OEM procedures on virtually every structural repair — but most shops don't bill for it. Here's how to change that.
Adjusters routinely deny blend time as 'included.' It isn't. Here's the P-page citation that proves it — and how to use it in your supplement letter.
Restoration contractors leave thousands of dollars on the table every year because they don't know how to write supplement letters. Here's the guide.
Most shops accept a 60–70% supplement approval rate as normal. It isn't. Here are 10 strategies that consistently push approval rates above 85%.
I-CAR standards carry significant weight with insurance adjusters. Here are the specific standards that support the most common supplement requests.
A good template is better than a blank page. But an AI that writes the letter for you — with the right OEM citations for your specific vehicle — is better than any template.
Not all supplement software is created equal. Here's the feature checklist that separates tools that actually improve approval rates from those that just save formatting time.
Scanning is now required by most OEMs on every collision repair. Here's the documentation strategy that gets scan charges approved — and why skipping it exposes your shop to liability.
There are 8 operations that adjusters deny on almost every estimate — even though they're explicitly listed as non-included in the P-pages. Here's the citation for each one.
EVs and Teslas are the fastest-growing segment of collision repairs — and the most frequently under-supplemented. Here's what's different and how to get paid for it.
Frame rail replacement supplements are high-value and frequently disputed. Here's the documentation protocol that gets them approved — from teardown photos to OEM sectioning procedures.
Setup time is not included in structural repair time — but most shops either don't bill for it or accept the denial without a fight. Here's the P-page citation and the supplement language that wins.