See the cost drivers before the site visit.
Build a realistic early range, test layout and finish choices, then download a clear plan or pass it to tradies for a formal quote.
What are you changing?
Start broad. Your range will react as you add detail.
Space size
Plan with fewer unknowns
A useful answer now, and a clearer conversation when a tradie inspects the job.
Who it is for
Australian homeowners, landlords and renovators planning a bathroom upgrade.
The problem
People search for a single bathroom renovation price, but real pricing changes with size, finish level, waterproofing, plumbing moves, access and hidden site conditions.
What it gives you
The calculator gives a broad planning range, shows the biggest cost drivers and converts the assumptions into a practical brief for a licensed tradie to review.
The result is a planning estimate only. Waterproofing, plumbing, electrical work, structural changes and product selections can change the final quote.
How the result is calculated
The model starts with a broad Australian planning range, then adjusts it for renovation scope, room size, finish level, moved services, feature upgrades, site access and older-property risk. Results are rounded to the nearest $500 and deliberately shown as a range.
Common questions this tool helps answer
When to use it
- Compare refresh, full renovation and layout-change scenarios
- Understand whether premium finishes or moving services are likely to drive the budget
- Prepare a clearer brief before asking plumbers, waterproofers, tilers or builders to quote
Questions people ask before quoting
Can a bathroom renovation calculator give an exact quote?+
No. It can help with planning, but a formal bathroom quote needs a tradie to review site conditions, waterproofing requirements, product selections, access and any compliance issues.
What usually changes the cost of a bathroom renovation?+
The biggest variables are the size of the room, whether plumbing or electrical services move, the finish level, waterproofing scope, access, demolition and hidden issues in older properties.
Why does KeyTrade use a range instead of one number?+
A range is more honest at the early planning stage. It helps you understand likely budget movement before a tradie inspects the site and gives a formal quote.