Contracts & Pricing
October 2026
5 min read
The cheapest contract on the table is rarely the cheapest build. Here is how a genuinely fixed price protects your budget — and the warning signs of a quote that is not as fixed as it looks.
Most horror stories you hear about building start the same way: the contract price looked great, and then the variations started arriving. A genuinely fixed-price contract is the single best protection a homeowner has, because it forces every uncertainty to be priced, discussed and documented before you sign rather than discovered mid-build.
At GWS Build we prepare fixed-price tenders only after the site has been properly investigated and the design has been resolved. That takes us longer than quoting from a floor plan, and it is deliberate — soil, access, services and engineering all get priced into the contract instead of surfacing as "unforeseen conditions" on your final account.
A fixed price is only as strong as its allowances. We itemise every prime cost and provisional sum so you can see exactly what has been budgeted for tiles, appliances and fittings, and we tell you honestly when an allowance is tight. If your selections come in under allowance, the saving is yours — that is how a transparent contract should work.
Our position is simple: if a builder cannot tell you what a variation will cost before it happens, they should not be starting the work. Every variation on a GWS Build site is documented and signed before we proceed, and that discipline is why our clients' final accounts match their contracts.
A practical note on how allowances behave once construction starts. When you select a tap for $180 against a $200 allowance, the contract adjusts by the difference — and on our projects that adjustment arrives on a one-page document you sign, not buried inside a progress claim. Selections made early almost always land under allowance, because you have the whole contract period to shop rather than a panicked afternoon mid-build. Clients who use that time consistently save money; clients who leave selections to the final fortnight consistently do not.
Second, understand what a fixed price does not cover. Every honest contract excludes work nobody could have known about — asbestos behind cladding, termite damage inside a wall, council-required upgrades triggered by the works. What separates a professional builder is not the absence of these events but the paperwork that surrounds them: photographs, a written scope, a signed variation, and a realistic price. If a contract is silent on how variations are handled, ask for that to be fixed before you sign, not after.
KEY TAKEAWAYS
- A real fixed price is built on proper site investigation, not guesswork
- Ask what every allowance covers — and what happens if it is exceeded
- Variations should always be documented and signed before work proceeds
- If the contract price is far below other quotes, the variations are where the difference hides
