UK Septic Tank Survey Price Index

The UK Septic Tank Survey Price Index carries 3 published figures read from 3 sources' own pages, from 250 to 350 GBP, read 27 October 2026.

250 to 350 GBP Range of the published figures 3 published figures, not one market: read the rows
3 Published figures from 3 source pages, read 28 Oct 2026
3 of 40 Sources read that publish one 8% publish a figure at all
  1. Septic Tank Emptying Services350 GBP
  2. How Much Does a Professional Septic Tank Survey Cost?300 GBP + VAT
  3. Draiange Surveys250 GBP
Every published figure, highest first.
Table view
RowValue
Septic Tank Emptying Services350 GBP
How Much Does a Professional Septic Tank Survey Cost?300 GBP + VAT
Draiange Surveys250 GBP

3 of the 40 named sources read in full publish a figure; 37 publish none, read 27 October 2026.

By survey-scope

BreakdownMedianRangeSources
survey-scopewritten-survey325GBP300 to 350GBP2
survey-scopevisual-check250GBP250 to 250GBP1

Every figure, with its source

One row per published figure: the figure as the source's own page publishes it, the page, and the day it was read. A figure that is not on a page we read is not on this one.

SourceFigureBreakdownRead
Septic Tank Emptying Services350GBPwritten-survey2026-10-27
How Much Does a Professional Septic Tank Survey Cost?300GBP + VATwritten-survey2026-10-27
Draiange Surveys250GBPvisual-check2026-10-27
The sentence each figure was read from (3)
  • Septic Tank Emptying Services, read 2026-10-27: Standard Domestic Property Survey – From £350
  • How Much Does a Professional Septic Tank Survey Cost?, read 2026-10-27: However, a professional septic tank survey typically starts from around £300 + VAT.
  • Draiange Surveys, read 2026-10-27: This gives those buying a house with an old septic system, cesspit or sewage treatment plant the comfort and assurance they need. If you would like us to just pop in and give the system a once over and verbally let you know the condition of the system we can do this for £250.

Read in full, publishes no figure

37 named sources were read in full on the dates shown and print no usable figure. They are counted, never filled in.

Methodology

Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2).

3 of the 40 named sources that could be read published a usable figure; 37 published none and are recorded as not published, never filled in; 4 could not be read (blocked, dead or unreachable) and count nowhere.

The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source in GBP (a source's median where its page yielded several accepted sentences), so N counts sources, never sentences; 86 candidate sentence(s) were refused by a reviewer with the reason recorded.

The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): the median and range of PUBLISHED septic tank and treatment plant survey fees across UK off-mains specialists that publish one, VAT basis stated, split by what the survey includes (visual inspection, emptying, CCTV, drainage-field test, written General Binding Rules opinion); beside it the share of specialists that publish any fee, and the awarded unit prices public bodies disclose in contract notices

86 candidate sentences on these pages were refused by a reviewer; each refusal and its reason is recorded in the review ledger.

Sources (44)
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The UK Septic Tank Survey Price Index carries 3 published figures read from 3 sources' own pages, from 250 to 350 GBP, read 27 October 2026.

3 of the 40 named sources read in full publish a figure; 37 publish none, read 27 October 2026.

UK Septic Tank Survey Price Index, survey-scope written-survey: median 325 GBP across 2 sources, read 27 October 2026.

UK Septic Tank Survey Price Index, survey-scope visual-check: median 250 GBP across 1 source, read 27 October 2026.

Cite as: "septictanksurveycost.co.uk UK Septic Tank Survey Price Index", updated 2026-10-28, https://septictanksurveycost.co.uk/datasets/uk-septic-tank-survey-price-index/.

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250 to 350 GBP

3 published figures, UK Septic Tank Survey Price Index, across 3 sources, read 27 October 2026

Source: septictanksurveycost.co.uk UK Septic Tank Survey Price Index

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