Quoting app for concreters in Western Australia
Sumitt builds a sharp, professional concrete quote in minutes, then texts your client a link to accept, e-sign and pay the deposit up front.
The WAdeposit cap, licence line, payment-claim rules, variation rules and rates below are read from Sumitt’s own tables when this page renders, not written for it.
The rules in Western Australia that Sumitt already knows
Every rule below is read, when this page renders, from the tables the quote builder, the variation composer, the extension-of-time notice and the payment-claim generator run on. Sumitt warns and never blocks, and the page moves the day a table does.
Deposit cap in Western Australia
WA caps deposits at 6.5% on home-building contracts between $7,500 and $500,000.
Where no statutory cap applies, the builder still warns above the common-practice figure: “WA's 6.5% deposit cap covers contracts $7,500 to $500,000, and this job sits outside that band. Common practice is about 10%.”
Sumitt's default deposit is 10% of the total including GST. It warns you when a deposit goes over the line; it does not enforce it.
Home Building Contracts Act 1991 (WA)
Licence line in Western Australia
Sumitt's licence-line warning covers New South Wales, Victoria and Queensland today. It carries no line for Western Australia, so the licensing rules there stay yours to check.
Security of Payment claims in Western Australia
Security of Payment claims are built for New South Wales, Victoria and Queensland today. Western Australia is not covered yet, so an overdue invoice there runs up the follow-up ladder to the letter of demand instead.
Variations in Western Australia
In Western Australia the variation rules Sumitt shows are cited to Home Building Contracts Act 1991 (WA).
For contracts the Act covers ($7,500 to $500,000), variations belong in writing, signed by both parties.
State the price effect and any time effect before the work proceeds.
An unwritten variation in WA turns into a word-against-word dispute with the Building Commissioner. The signed record is what gets paid.
Signed before the work starts is the practice that wins disputes, and Sumitt flags a running job that has an unapproved variation on it.
Sumitt structures the variation and collects the signature, a record you keep, not legal advice. Where your contract sets its own variation process, follow it too.
Home Building Contracts Act 1991 (WA)
Extensions of time in Western Australia
In Western Australia the contract sets the extension-of-time window. Sumitt's notice defaults to 10 calendar days from the day the delay ended, shows the countdown, and asks you to check the contract's own figure.
A template you serve in your own name, not legal advice. Your contract's own extension-of-time clause governs the window and the grounds, so check it and keep a copy of everything.
Sumitt provides software and templates, not legal, financial or tax advice. Check what applies to your contract.
What the work costs in Perth / WA metro
Sumitt's Perth / WA metro card runs materials at 1.03 and labour at 1.02 against the national card at 1.00. Outside the metro the Regional (freight + travel) card applies: materials 1.08, labour 1.03.
| Job | Cost | Floor | Healthy | Premium | Healthy, Perth / WA metro | |
|---|---|---|---|---|---|---|
| Plain slab / pathper m² · benchmark scope: 40 m2 plain concrete | $111 | $130 | $158 | $184 | $162 | Check your rate |
| Exposed aggregate drivewayper m² · benchmark scope: 60 m2 exposed agg driveway 100mm | $134 | $157 | $191 | $223 | $196 | Check your rate |
| Shed slabper m² · benchmark scope: 50 sqm shed slab | $123 | $145 | $176 | $206 | $181 | Check your rate |
National figures per unit, ex GST, derived from Sumitt’s 2026 rate cards priced over the benchmark scope shown under each job; the last column prices the same scope on the Perth / WA metro card. Cost is the benchmark cost of doing the work before any margin, and Floor, Healthy and Premium are the sell rates that land those margins. Not a survey of what anyone else charges, and nothing here reflects what any Sumitt user charges. How to read it, and the method, are on the index.
Built for concreters
Every figure here is read from the Concrete & paving rate card, takeoff engine and hazard library inside Sumitt when this page renders, so it cannot say more than the product does.
The rate card
25 lines in 5 groups, 5 with a grade or billing basis to pick. Size field: Area (m²). Every rate editable.
- Concrete
- Reinforcement
- Base & site
- Finish
- Labour
The takeoff engine
Say it like this and the engine prices it off your card, deterministically.
- “60 m2 driveway 100mm”
- “12x10 exposed agg driveway 125mm pump”
- “50 sqm shed slab”
The safety pack
A SWMS drafted from the job you priced, with the concrete & paving hazard set:
- Deliveries & truck movements
- Formwork & site preparation
- Concrete pour & placement
- Cutting & finishing
3 site questions to confirm before sign-off.
You review it against the site, edit it and sign. Sumitt prepares the paperwork; it does not make your business compliant.
The full breakdown, with the graded options, the line-triggered hazards and the PPE, is on the concreters page.
Straight answers
What deposit can concreters take in Western Australia?
WA caps deposits at 6.5% on home-building contracts between $7,500 and $500,000. Under the Home Building Contracts Act 1991 (WA). Sumitt's default deposit is 10%. Sumitt warns you when a quote goes over it, it does not enforce it. Not legal advice.
Is there a licence threshold for concreters in Western Australia?
Sumitt's licence-line warning covers New South Wales, Victoria and Queensland today. It carries no line for Western Australia, so the licensing rules there stay yours to check. Not legal advice.
Can concreters make a Security of Payment claim in Western Australia?
Not yet. Security of Payment claims are built for New South Wales, Victoria and Queensland today. Western Australia is not covered yet, so an overdue invoice there runs up the follow-up ladder to the letter of demand instead. Not legal advice.
Do variations need to be in writing in Western Australia?
In Western Australia the variation rules Sumitt shows are cited to Home Building Contracts Act 1991 (WA). For contracts the Act covers ($7,500 to $500,000), variations belong in writing, signed by both parties. An unwritten variation in WA turns into a word-against-word dispute with the Building Commissioner. The signed record is what gets paid. Sumitt prices the variation and collects the client's e-signature, and flags a running job with an unapproved variation. Not legal advice.
Sumitt provides software and templates, not legal, financial or tax advice.
Built for AU concreters. GST, deposits and 2026 rates baked in.