Stone and worktops
Quote calculators for worktop companies
Customers price their worktop on your website, and you get their details with the job already priced.
What is a worktop quote calculator?
A tool on your website that turns a customer’s choice of stone, size and options into a price there and then. It’s for stone and worktop companies, and a simple calculator starts from £500.
Castia Marble
For Castia Marble, the instant-quote calculator produced £6,559,011 in worktop quotes from November 2025 to September 2026, tracked in Google Ads. That’s quote value, not sales: a quote only counts when a customer has priced a job and left their details.
Castia also has a stone visualiser, so customers can see a stone before they choose it.
worktop-compare.com
Prad’s own comparison site, worktop-compare.com, helps people get stone worktop quotes from UK suppliers.
What you get
A calculator built around the way you price worktops.
- A calculator on your own website, built around your stones, sizes and prices.
- An instant price for the customer, and their details for you when they ask for the quote.
- A stone visualiser, if you want customers to see a stone before they choose it.
- Hosting, software and fixes while the monthly running cost is in place, at about £50 a month.
How it works
A simple calculator typically goes live from one week, depending on complexity.
Tell us how you price
The choices a customer makes, the rules behind your prices and what you need to know before you quote.
We build it into your website
It sits on the site you already have, as Castia’s does at castiamarble.co.uk/quote, so customers price the job without leaving it.
Customers price their own jobs
They get a price there and then, and you get their details with the job they priced.
Questions before you start
- How much does it cost?
- A simple calculator starts from £500, plus about £50 a month to run. A calculator with more options and rules costs more.
- How long does it take to go live?
- From one week, depending on complexity.
- Do I own it?
- Yes. You own everything we build, including the accounts and the data.
- Can I change it myself?
- Mostly, yes. We set things up so that most clients can make changes themselves, and we show you how it works.
- What happens if it breaks?
- While the monthly running cost is in place, we fix it. Without it, you can pay for a one-off fix. The monthly cost covers hosting, software and fixes, normally with a six-month minimum term.
Try a worktop calculator
These run on real websites today.