Calculate your project now
Open the interactive estimator, select this project and adjust the country, size and finish level.
Open the free calculator →How the calculation works
Add at least 15–20% contingency to the project estimate, then compare it with available cash without exhausting emergency savings.
Realistic example
A 20,000 project should ideally retain around 4,000 for unexpected costs.
Common mistakes
- Using the emergency fund
- Ignoring borrowing interest
- Paying too much upfront
Regional price differences
Labour availability, transport, taxes, product standards, climate and local building requirements can materially change the result. Use the country selector for a broad comparison, then verify current prices with local suppliers and at least two suitably qualified professionals.
When professional advice is necessary
Seek qualified advice where the work affects structure, electricity, gas, plumbing, drainage, fire safety, waterproofing, asbestos, planning permission or building approval.