I Asked ChatGPT for Handyman Estimates. The Prices Were Wrong.

I'll say the quiet part out loud: I tried ChatGPT for quoting.

I run Good Hands Handyman across Byron Bay and the Northern Rivers. I'm better with a circular saw than a spreadsheet. So when everyone started saying AI would do the admin, I pasted a job description in — kitchen doors, coastal humidity, return visit for hardware — and asked for an estimate email.

The wording? Fine. Polite. Professional. Better than my Sunday-night typing, honestly.

The prices? Wrong.

It guessed my rates. Guessed is not good enough.

It invented labour numbers that weren't mine. It missed how I think about call-out versus a return visit. Travel from Byron toward Ballina or Tweed wasn't right. Markup on materials didn't match what I actually charge when I pick up hinges, latch sets, or timber.

If I'd sent that quote, I'd either look expensive for the wrong reasons or cheap for the dangerous ones. Neither builds trust. A customer doesn't care that the email sounded clever if the number feels made up.

That's the whole story I wrote up properly here: ChatGPT got my estimates wrong. Short version for other tradies: AI can dress the email. It does not know your catalogue.

Why Northern Rivers pricing isn't a national average

Coastal work has its own costs. Salt air eats cheap hardware. Humidity swells doors. Decks need marine-grade products, not whatever was on special. Travel time between towns is real. A “typical Australian handyman rate” scraped from the internet doesn't know any of that about my week.

ChatGPT is trained on averages and confident prose. Your business runs on specific prices you've learned the hard way.

What I actually need on a job

When I'm in someone's kitchen in Mullumbimby or under a deck in Lennox, I need:

• My labour rates — not a national average
• My call-out / travel habits for this area
• Materials priced the way I buy and mark them
• A quote the customer can say yes to while I'm still there

That's why I moved to voice quoting with my rates. I talk the job. I verify every line against my own prices. Then I send. About thirty seconds when the job is clear — not because AI is magic, because the catalogue is mine.

Honest take on AI for tradies

Use ChatGPT if you want help wording a tricky email to a property manager. Use it to clean up a paragraph. Don't let it invent what a hinge job costs in Byron Bay salt air.

Your reputation sits in the number, not the adjectives. Customers remember whether the final invoice matched what they expected. They don't remember that your email used nice transitions.

I built SMASH for my own jobs after I got tired of pretty emails with wrong dollars. Other tradies can use it too — just don't confuse fluent sentences with real pricing.

A concrete example (without inventing dollars)

I gave ChatGPT a kitchen door job: coastal humidity, multiple doors, likely hinge replacement, possible latch adjustment, Byron Bay. It produced a tidy email with a confident total. The labour hours didn't match how long those doors actually take me when the chipboard is swollen. The materials line looked like a generic hardware-store guess. There was no sense of a return trip if the right hinges weren't on the van.

That's the trap. The email feels finished. The number isn't earned.

Catalog truth is boring — and that's why it works

My rates aren't exciting content. They're the boring truth of what I charge for labour, call-out patterns, and materials in this region. When I quote by voice now, I'm not asking an AI what a handyman “should” charge in Australia. I'm checking against what Good Hands actually charges on Tuesday in Lennox versus a quick job around the corner in Byron.

If AI helps you write the cover note, fine. Keep it away from the dollars unless you've pasted your real price list in — and even then, verify. I verify every time.

Bottom line for tradies reading this: keep AI in the wording lane. Keep pricing in your catalogue. Your customers hire you for judgement — including what the job is worth in this postcode, not what a chatbot averaged from the internet.