Fast, repeatable supplements.
Backed by real OEM proof.
WrenchWriter turns what your tech found on teardown into an adjuster-ready narrative in under five minutes — flags every operation the manufacturer requires for the repair, and backs each one with a real OEM position statement, quoted and dated.
Start with a 14-day free trial.
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 a couple of minutes.
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, and written to follow I-CAR-recognized repair methodology so the documentation reads the way adjusters expect.
OEM requirements checklist — nothing billable left off
As you enter the damage, WrenchWriter surfaces the operations the manufacturer requires for that repair — pre- and post-repair scans, ADAS calibrations, corrosion protection — and flags the ones missing from your estimate, each tied to a verified position statement.
OEM Shield — the manufacturer's own words
Backs the damage you describe with real OEM position statements — quoted and dated, straight from the carmaker. When a manufacturer revises one, we supersede it and keep the history, so you always cite the version that was current. It never fabricates a citation, so what you submit holds up when the adjuster pushes back.
Under 5 minutes per supplement
Fill in claim and damage details, hit generate, and get a submission-ready narrative — no more starting from a blank page.
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. Generous monthly usage.
Try it free for 14 days, then $69/month.
- ✓ Generous monthly usage
- ✓ 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.
Tell us what would make this better
Missing an OEM statement for a make you work on? A feature that would save you time? We read every note — your input shapes what we build next.