Compare septic tank and treatment plant quotes
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Free tool Installer quote comparison
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How the comparison works
Enter up to three written quotes. For each one, type in the company, the total exactly as written and whether it includes VAT, then mark what the quote says about each item on the list: included, not included or not stated.
The tool lines the quotes up in a table, flags the rows where they differ and lists the questions to ask each installer about anything missing. It has no built-in prices or "typical" costs: every figure comes from the quotes you have.
Why totals alone can mislead
Two quotes for what sounds like the same job can cover very different work. One may include the drainage field, the electrics and putting the garden back; another may leave them out or not mention them. Anything left out may be charged later, so get it in writing before you choose.
Before you sign
Check what the official rules for your nation say about your system with the rules checker, and ask who will apply for any permit, registration, consent or building control sign-off. We don't recommend installers or take payment from them. Your quotes are kept in this browser on this device and are never sent anywhere.