Write insurance supplements
in under 2 minutes.
WrenchWriter turns the damage you found during disassembly into a professional, adjuster-ready supplement narrative — instantly. Built for auto body shop estimators.
Watch a supplement
write itself
This is exactly what gets submitted to your adjuster. Hit generate and watch.
Enter the claim details and damage found
Shop, claim number, vehicle, and the additional damage you found during disassembly.
Hit generate
WrenchWriter writes the full narrative in under a minute.
Copy and submit to your adjuster
Paste the narrative into your estimating system or email it straight to the adjuster.
Built for body shop estimators
Not a generic AI chatbot — WrenchWriter is tuned specifically for collision repair supplements that adjusters approve fast.
OEM & I-CAR aware
References manufacturer repair procedures and I-CAR standards automatically when relevant to the damage you describe.
Under 2 minutes per supplement
Fill in claim and damage details, hit generate, and get a submission-ready narrative — no more starting from a blank page.
Add it to your home screen
Install WrenchWriter on your shop computer or phone like any other app — no App Store, no download, no IT setup required.
Supplements get written at the end of a long day, after the disassembly is done and the adjuster is waiting. A weak narrative gets kicked back and your shop eats the delay. WrenchWriter writes the narrative the way an experienced estimator would — clear, factual, and built to get approved on the first pass — so you can get back to the next car.
One price. Your whole shop. Unlimited supplements.
Less than the value of one approved supplement.
- ✓ Unlimited supplement narratives
- ✓ OEM & I-CAR standard references
- ✓ Every estimator in your shop
- ✓ Works on desktop, tablet, and phone
- ✓ No contract — cancel anytime
The math: The average supplement recovers $800+ in additional repair work. If WrenchWriter helps you write just one clearer narrative that gets fully approved, it's paid for itself for months.
Does it replace my estimating software?
No — it works alongside CCC ONE, Mitchell, and Audatex. WrenchWriter just writes the narrative.
Can my whole team use it?
Yes. One subscription covers every estimator in your shop.
What if the narrative isn't right?
You review and edit everything before submitting. WrenchWriter gets you 95% of the way in seconds — you keep full control.
Is there a contract?
No. Cancel anytime, no questions asked.
Is my data secure?
Yes — everything is encrypted and we never share your shop's information.