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Drain Filling
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Drain filling checker

Answer a few short questions about the drains and chambers on your site. The result gives an initial indication of how likely it is that a drain has been left redundant and needs sealing. This is not a diagnosis: only a CCTV drain survey confirms what each pipe still carries.

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Planning tools

Could you have a redundant drain?

Has a building, extension or outbuilding been taken down, leaving a gully, manhole or pipe end behind?
Is there a manhole, gully or inspection chamber that no longer serves a working toilet, sink or downpipe?
Can you see a pipe end in a trench, a wall or the ground where a drain used to run?
Do your drainage plans show a pipe running under the area you plan to build on, or is a drain shared with a neighbour?
Is the ground dipping along an old pipe line, or is there standing water or a smell in a chamber you no longer use?

Ask about the job to get a confirmed answer. This tool gives a rough indication only; a site visit by a specialist is what settles the actual scope and cost.

Reading the levels

  1. Low likelihood The signs you have described suggest the drains are still in use or have already been dealt with. Keep your drainage plans accessible and request a CCTV survey if building work is planned nearby.
  2. Possible The combination of signs you have described is worth a proper look. A CCTV drain survey will show which pipes are active, which are redundant and which need capping before groundworks begin.
  3. Worth investigating The signs point to a redundant drain that is open or sits beneath planned construction. Arrange a survey promptly: sealing the pipe before groundworks start keeps the programme on track and the paperwork manageable.

Look-alikes

  • Drain in light use: A pipe serving an infrequently used fitting, such as an outside tap or a rarely used bathroom, can appear abandoned while still carrying flow and must not be sealed until a survey confirms otherwise.
  • Blocked drain: Water backing up inside a chamber generally indicates a blockage on a live drain that needs clearing, not a pipe that should be sealed off.
  • Soakaway or surface water pipe: A chamber that only receives rainwater runoff may still be serving the site, and the drainage plan will show whether it can safely be taken out of use.

No obligation

Get a free quote today

Tell a specialist what you have, where the property is, and what you need done. A free quote comes back before any work is agreed.

  • Free quote for your property
  • No obligation to proceed

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