BuildWhiz is an Australian builder quote review tool that helps homeowners find missing items, vague inclusions, and hidden contract risks before signing.

You’re about to spend $350k–$600k on your build — make sure nothing is missed before you sign

BuildWhiz reviews your builder quote and highlights items worth clarifying — so you can avoid unexpected costs and make confident decisions.

Takes 3 minutes · Could save you thousands
The average home build in Australia costs $350k–$600k. BuildWhiz starts at $29 to help you review your quote before committing.

📊 See a real report before you upload →
✅ Make decisions with more clarity before signing🔒 Secure upload and private analysis🇦🇺 Tailored for Australian residential builds⚡ Analysis in minutes — no manual review needed

Built on real builder quotes and industry-standard checklists.

BuildWhiz product walkthrough
📋180+ checklist items analysed
📍Personalised to your build type and location
🗺️Region-specific checks for every Australian state

SEE WHAT BuildWhiz CATCHES BEFORE YOU SIGN

Here's what we flag in real quotes

Most quotes look complete — until the variations start. We check every line to catch what's missing, unclear, or likely to cost more later.

📋 All Items — 117 checked
🚨
Waterproofing (wet areas)
missing

Not listed anywhere in the contract. Waterproofing wet areas is mandatory under the NCC — missing it almost always leads to a costly variation.

In plain English
Your builder hasn't included waterproofing for bathrooms and wet areas. This is required by law — if it's not in the contract, you'll be billed for it as an extra after you've already signed.
💬 Ask your builder
"Can you confirm waterproofing for all wet areas is included in the contract price, and show me where it's listed?"
🗣️ What to say to your builder
"I noticed waterproofing isn't listed in the quote. It's a mandatory code requirement — can we add it as a line item so it's clearly covered before I sign?"
🚨
Landscaping and garden beds
missing
🚨
Termite protection
missing
⚠️
Site costs — allowance $8,000
vague
⚠️
Structural framing specifications
vague
⚠️
Driveway and crossover
vague
Foundation and footings
included
Concrete slab
included
+ 109 more items checked

OTHER COMMON PATTERNS WE FLAG:

MISSING

Landscaping

Not mentioned anywhere in the quote. Often left out or deferred, meaning you'll need to budget for it separately later.

VAGUE

Soil conditions

"Site conditions may vary" — wording like this leaves room for additional costs once work begins.

INCLUDED

Included — but limited

"Flooring included" — often only covers basic materials, not installation or upgrades.

Your report checks your entire quote — not just these examples.

Check My Quote Before I Sign

Upload your quote and get your report in minutes

See what your report looks like

Your full report shows what's missing, what's unclear, and where you may be exposed to extra costs — before you sign.

64%
Coverage Score
Needs improvement
50 included29 vague38 missing
🎯 Priority 12
✨ Interests
📁 Category
📋 All 117
💰 Costs
🔍 Discover
🚨
Waterproofing (wet areas)
missing
⚠️
Site costs — allowance $8,000
vague
🚨
Landscaping
missing
Foundation and footings
included
+ 113 more items checked
64%
Coverage Score
50 incl.29 vague38 miss.
🎯 Priority 12
✨ Your Interests
📁 By Category
💰 Variable Costs
🔍 Discoveries
🎯 Priority Items 12
🚨
Waterproofing (wet areas)
missing
⚠️
Site costs — allowance $8,000
vague
🚨
Landscaping
missing
⚠️
Structural framing specifications
vague
Foundation and footings
included

Based on a real anonymised quote analysis.

YOUR REPORT ALSO INCLUDES:

Your Interests

Items matched to your build type and what you said matters most — so you see what's relevant to you, not just a generic list.

💰

Variable Costs

Which allowances are likely to blow out, and how much room the builder has left themselves to charge more once work begins.

🔍

Discoveries

Hidden insights pulled from the contract language — things most people sign without noticing until the variations arrive.

Check My Quote Before I Sign

Upload your quote and get your report in minutes

Or see the full demo report first →

ASK ANYTHING ABOUT YOUR QUOTE

BuildWhiz quote assistant

Not sure what a term means? Worried about a line item? BuildWhiz knows your specific document and answers in plain English — so you go into negotiations prepared.

  • 🧠
    Answers from your actual quote
    Not generic advice — specific to what's in your document.
  • 💬
    Plain English explanations
    Demystifies contract jargon so you know what you're actually signing.
  • 🎯
    Tells you what to ask your builder
    Walk into every conversation knowing exactly what to push back on.
💬
BuildWhiz Assistant
Online
What does "provisional sum" mean in my quote?
A provisional sum is an amount your builder has estimated for work they can't price accurately yet — like site works or tiling. If the real cost ends up higher, you pay the difference. Your quote includes 3 provisional sums totalling $24,000.
Is $8,000 for site costs realistic?
For a flat block with easy access, $8k may be fine. For sloped or reactive-soil sites, $15k–$30k is more common. I'd ask your builder what soil conditions and site access they've assumed in this figure.

Now that you've seen what it finds — these are the patterns we see again and again in real quotes:

Gaps in coverage

Key items left out of the quote that you'll need to pay for later — landscaping, driveways, connection fees, blinds. They add up fast.

Low allowances

Amounts that look fine on paper but won't cover what you actually want. A $15,000 kitchen allowance might barely cover flat-pack — let alone installation.

Unclear scope

Vague wording that gives room for costly variations during the build. "Soil conditions may vary" could mean an extra $30,000. Better to catch it now.

What you get in your report

📊

Coverage Score

A single percentage showing how much of your build is covered by the quote.

🚩

Missing, Unclear & Flagged Items

Every item that's missing, vague, or unclear — with plain-English explanations of why it matters.

💰

Variable Cost Breakdown

See every allowance, provisional sum, and prime cost — and whether they look realistic.

🎯

Priority Action List

Your top issues ranked by impact, so you know where to focus first.

✉️

Email Your Builder + Negotiation Scripts

BuildWhiz generates a professional email listing every issue, plus word-for-word scripts for each conversation.

🔍

Contract Discoveries

Hidden clauses, unusual wording, and items buried in the fine print — spotted automatically so nothing slips past you.

How BuildWhiz checks your quote

Three steps. Three minutes.

1

Tell us about your build

We tailor the checklist to your project, location, and priorities.

2

Upload your builder's quote

BuildWhiz reads every line — extracting items, allowances, and wording — so nothing important is missed.

3

Get your report

See what's missing, unclear, or risky — before you sign.

Why homeowners trust BuildWhiz

Reads like an expert

Understands builder terminology — allowances, provisional sums, exclusions — and reviews your quote line by line.

Structured, not guesswork

Uses a detailed checklist tailored to your build type, location, and priorities — so nothing important is overlooked.

Minutes, not weeks

Get a full analysis in minutes. No waiting on consultants or back-and-forth emails.

Fraction of the cost of a QS

Get similar insights to a professional review — without paying thousands upfront for a preliminary check.

Built for Australian homeowners

Our checklist includes state-specific items — from cyclone ratings in the north to bushfire assessments in the south — so BuildWhiz knows what to look for based on where you're building.

"Picked up missing site costs and vague allowances I would have missed completely. Saved me thousands in potential variations."

Sarah M.
Homeowner, NSW

"I thought my quote was solid — turns out three key items weren't even included. Glad I checked before signing."

James T.
First-time builder, VIC

"The email to my builder was worth it alone. He came back with a revised quote the next day."

Lisa K.
Homeowner, QLD

Check My Quote Before I Sign

Know what's missing before you sign

Check My Quote Before I Sign

Most people only find these issues after they've signed.

Once the contract is signed, these become variations.