Work 1Bathroom renovation
Bathroom quote calculator in Google Sheets and Excel
Room size in, materials, labour and a ready PDF quote out. Prices live on one tab, so the owner changes a rate once and every quote updates.



The problem
What it solves
Renovation companies usually put every quote together by hand after a site visit: measure, look up tile and adhesive prices, add labour, add VAT. It is easy to end up a box short or with last year’s rate.
The tricky part
What had to be right
Openings and rounding. Wall area must exclude doors and windows, and materials are sold by the box, not by the m². The sheet keeps exact areas for labour and rounded quantities for materials, so neither half of the quote is off.
Inside
What it does
- Calculator tab: room length, width, tiled height and openings in, floor and wall areas out
- Drop-downs for tile lines, adhesive, grout and waterproofing, rounded up to full boxes and bags
- Waste allowance by tile size: 10% standard, 12% large format
- Labour per m² for removal, waterproofing, floor and wall tiling, plus fixed jobs
- Price list tab with a “last updated” date for every price; VAT and quote validity in Settings
- Quote tab that saves a numbered PDF with the logo to Google Drive
What the owner gets
One file, prices changed in one place, and quotes that look the same every time.
Built with
- Google Sheets
- Excel
- Apps Script
- Data validation
- Protected ranges
More work
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