Split system air conditioning installation (7 figures)

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).

4 of the 18 named sources that could be read published a usable figure; 14 published none and are recorded as not published, never filled in; 2 could not be read (blocked, dead or unreachable) and count nowhere.

The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source for each breakdown it prices, in GBP (a source's median where its page yielded several accepted sentences for one breakdown), so a page that gives figures for several breakdowns gives one for each and N counts 7 figures, never sentences; 168 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, minimum and maximum PUBLISHED price per job - a single-split supply and fit at 9,000 and 12,000 BTU, a multi-split, an annual service, an F-gas leak check, a call-out, a compressor replacement - across every company that publishes one, with VAT stated and the unit separated from the labour; the derivations nobody has are the installed price per kW, the ratio of labour to hardware, the London premium against the rest of GB, and the share of installers that publish a price at all

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