AI prompts for builders: copy, fill in the brackets, get back on site

How to use these prompts

1. Copy the whole prompt (press and hold on your phone, or tap Copy prompt).
2. Paste it into your AI assistant. The free versions are fine.
3. Fill in every [bracket]. Delete any that don't apply.
4. Leave out client surnames, phone numbers and full addresses. Add those in your own software.
5. Check every number, measurement, date and rule reference yourself.
6. Make it sound like you, then send it from your usual app (Xero, Tradify, Fergus and so on).

Set up your "builder profile" once

1. Write 6 lines: business name, region (NZ or AU state), the work you do (new builds/renos/decks/commercial), contract type you usually use, your tone, and your standard exclusions.
2. Save it in your phone notes.
3. Paste it above any prompt below.

1. Quote or estimate from site walk-through notes

Section: Quotes & estimates

Copy this prompt and fill in the [square brackets]:

You're helping a [NZ/Australian] builder write a client [quote/estimate]. Label it clearly as a QUOTE or an ESTIMATE. From my notes, write: a 2-line summary for the homeowner, scope by stage (e.g. demolition, framing, cladding, linings, finishing), inclusions, exclusions, assumptions and provisional sums as [PS $___]. Leave every price blank as [$___]. Don't invent prices, materials or work. Notes: [paste notes or voice-note text]

Tip: Long jobs? Use scope of works first, then this prompt.

2. Exclusions & misunderstanding check

Copy this prompt and fill in the [square brackets]:

Here's a draft building quote. List anything a homeowner might misunderstand, and suggest exclusions or assumptions I may have missed (e.g. consent fees, engineer's fees, ground conditions, asbestos, landscaping, making good, client-supplied items). Don't change my prices. Quote: [paste]

Tip: This one question heads off most disputes before they start.

3. Quote cover letter

Copy this prompt and fill in the [square brackets]:

Write a warm, plain-English cover letter for my [quote/estimate] for [first name]'s [project] in [suburb]. Cover: what's included in one paragraph, the main assumptions, how long the [quote/estimate] is valid ([days]), and the next step: [e.g. sign and return / meet on site]. Under 200 words. Don't add any prices.

Tip: Put the price in your own quote document. Keep the letter about trust and next steps.

4. Variation notice

Section: Variations & progress claims

Copy this prompt and fill in the [square brackets]:

Write a clear variation notice for [first name]. Original scope: [x]. What changed and why: [e.g. rotten bearer found under bathroom floor]. Effect on time: [days]. Effect on consent: [none / needs checking]. Cost: [$___ I'll add]. Ask for written approval before I proceed. Plain English, calm, not defensive.

Tip: Get approval in writing before you do the extra work. For the full routine see variations and progress updates. Rules on variations differ in NZ and each AU state (verify).

5. Weekly progress update

Copy this prompt and fill in the [square brackets]:

Turn these bullet points into a short weekly update email for [first name]: what got done this week, what's next week, anything I need from them (e.g. [selections due by date]), and any delays with the reason. Friendly and honest. Bullets: [paste]

Tip: Same day each week. Clients who hear from you regularly complain less.

6. Progress claim cover note

Copy this prompt and fill in the [square brackets]:

Write a short cover note to go with my progress claim for [stage, e.g. frame complete] on [first name]'s project. Say which stage is complete, what the claim covers, and when payment is due under our contract: [terms]. Don't calculate any amounts. I'll attach the claim from my accounting software.

Tip: In NZ, payment claims under the Construction Contracts Act have set wording and notice requirements. AU states have their own security-of-payment rules. Check with your contract and the official guidance (verify).

7. First reply to a new build or reno enquiry

Section: Customers

Copy this prompt and fill in the [square brackets]:

Write a friendly reply to this enquiry [paste, details removed]. Thank them and ask the questions I need answered before I can quote: rough budget range, timeline, whether they have plans or consent yet, who makes decisions, and the suburb. Under 120 words, not corporate.

Tip: Asking about plans and budget early saves wasted site visits. See reply to enquiries.

8. Delay or bad-news message

Copy this prompt and fill in the [square brackets]:

Help me tell [first name] that the job is delayed by [time] because [reason, e.g. weather / late materials / an inspection rebooked]. Be honest, not defensive. Explain what we're doing about it and the new expected date. 3 short paragraphs.

Tip: Send bad news early and by phone first if you can. Use the text as the written follow-up.

9. Handover / practical completion message

Copy this prompt and fill in the [square brackets]:

From my notes, write a handover message for [first name]: what's complete, care and maintenance tips for [e.g. new deck, cladding], warranty and guarantee documents they'll receive, and how to report defects in the first [period]. Notes: [paste]

Tip: Check which documents you must give clients at handover in your region (verify).

10. Consent / permit document checklist

Section: Consents, compliance paperwork & records (admin only)

Copy this prompt and fill in the [square brackets]:

Make a plain checklist of documents I usually need to gather for a [building consent (NZ) / building permit (AU state: ___)] application for [type of work], so I can check it against my council's own list. Mark everything as "confirm with council". Don't tell me whether consent is required.

Tip: Always use your council's or authority's current checklist. Whether you need a consent is their call, not the AI's (verify).

11. LBP record of work / inspection reminder list

Copy this prompt and fill in the [square brackets]:

From this list of jobs, make a to-do list of: which still need my [record of work (NZ LBP) / required certificates (AU)] done, upcoming council inspections and dates, and any [home warranty / building guarantee (verify)] paperwork outstanding. Jobs: [job ref, stage, dates].

Tip: AI only builds the reminder list. You complete and lodge every record yourself, the way the rules require (verify).

12. Tidy the site diary

Copy this prompt and fill in the [square brackets]:

Tidy these site notes into a dated site diary entry: weather, who was on site, work done, deliveries, inspections, issues and instructions received. Copy my facts exactly. Don't add or guess anything, and mark unclear bits as [CHECK]. Notes: [paste]

Tip: A good diary is your best friend if there's ever a dispute. Write it daily.

13. SWMS / site safety plan starter

Section: Safety & technical

Copy this prompt and fill in the [square brackets]:

Draft a starting-point Safe Work Method Statement / site safety plan for [task, e.g. roof framing on a two-storey house / demolishing an old lean-to] in [NZ/state]. Include task steps, hazards (e.g. working at height, asbestos, excavation), controls and who's responsible, as a table. Mark site-dependent items [CHECK ON SITE]. Note that a competent person must review it.

Tip: See our H&S paperwork tutorial. Suspected asbestos needs proper testing first (verify the rules for your region).

14. Technical question, checked (see the safety box above)

Copy this prompt and fill in the [square brackets]:

I'm a [licensed builder / LBP]. Explain in plain terms the general factors to consider for [e.g. a deck joist span / a rafter angle on a lean-to]. Don't give final sizes, spans or angles. List which sections of [NZS 3604 / NCC / the relevant standard] or the manufacturer's tables I should check myself, and say clearly where you're unsure or where an engineer is needed.

Tip: Use this to jog your memory, never to size or set out anything. Use the standard's tables, the plans and the engineer's design.

15. Review request + project post

Section: Reviews, marketing & hiring

Copy this prompt and fill in the [square brackets]:

Write (1) a short text asking [first name] for a Google review after their [project], with [review link], under 50 words; and (2) a short Facebook post about the finished [project] in [suburb], friendly, no client names, with a call to action to [message/call].

Tip: Get the client's OK before posting photos of their home. See review requests.

16. Apprentice or hammerhand job ad

Copy this prompt and fill in the [square brackets]:

Write a job ad for a [apprentice carpenter / experienced hammerhand / leading hand] at a small [residential/commercial] building business in [town]. What a typical week looks like, what we're looking for (reliable, safe, keen), and how to apply. Casual but professional.

Tip: Check training details with your apprenticeship provider and current employment rules (verify).

Not sure which AI tool suits your building business?

Take the free 6-question quiz. Pick "Builder", and if you mostly do multi-day jobs it will usually suggest a tool that's good with long documents.

Tools these prompts work with

• Claude: long scopes, variations and documents
• ChatGPT: quick replies and updates
• Gemini: can read photos of plans and site notes (features change, so check what the current version can do)
• Xero · MYOB: quotes, progress claims and invoices
• Tradify · Fergus: job and quote software where you paste scopes
• Zapier · Make: log enquiries and send reminders automatically
• Google Calendar: inspections and site meetings

Can AI tell me if my job needs a building consent or permit?

No. Only your council or building authority can confirm that. AI can help you gather documents once you know.

Can AI work out spans, timber sizes or roof angles?

Don't rely on it. AI makes maths mistakes and may quote overseas rules. Use NZS 3604 or the NCC and Australian Standards, the plans and your engineer (verify).

Can AI write my LBP record of work or variation notices?

It can draft the wording from your notes. You check it, complete the official form and sign it yourself (verify).

What's the best AI app for builders?

A free assistant (Claude, ChatGPT, Gemini or Grok Bot) covers most writing. Claude is good with long documents. Take our quiz for a stack matched to your business.

Is it safe to put client details into ChatGPT?

Leave out surnames, phone numbers and full addresses. Add them in your own software. See safe AI habits.

Do I need to pay for AI to use these?

No. Every prompt here works in the free versions.