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Septic tank emptying and installer directory

A starter list of 43 real local firms in five rural English counties: name, town, website, phone and Environment Agency waste carrier number. Details checked October 2026.

• Devon

  8 firms. Devon has a lot of homes on septic tanks and treatment plants, from Dartmoor farms to East Devon villages. These firms are based in the county.

• Cornwall

  8 firms. Much of rural Cornwall is off mains sewerage. These firms are based in the county.

• Norfolk

  9 firms. From the Broads to the Brecks, many Norfolk villages have no mains sewer. These firms are based in the county.

• Herefordshire

  9 firms. Herefordshire is one of England's most rural counties. Most firms below are based in the county; two are based just outside and say they cover it.

• Shropshire

  9 firms. Shropshire's hills and villages rely heavily on private drainage. Most firms below are based in the county; one is based just over the Welsh border.

How this list works

Every firm here is real. We took each name, town, website and phone number from the firm's own website, then looked the business up on the Environment Agency public register of waste carriers. Nobody paid to be listed. We have not used them and we are not recommending one over another.

Check a carrier before they empty your tank

Under the general binding rules, the firm that takes your sludge away must be a registered waste carrier. Ask for their carrier number, or ask the tanker driver to show the certificate. Then search the number or name on the EA register. Registration numbers starting CBDU are upper tier, the tier normally needed to carry other people's waste as a business. Keep your emptying receipts: buyers' solicitors ask for them.

Run a firm listed here and want a detail corrected or removed? Email hello@offmainsdrainage.co.uk.