About Basement Tanking Cost
Joseph Ellul (5 Dolce Vita Corte, Triq San Mikiel, San Gwann, SGN 2303, Malta). We run this site and pass each enquiry to basement waterproofing contractors covering the enquirer's area.
Why this site exists
We read 57 waterproofing pages on 28 October 2026 and only 3 firms print a rate of their own, so the only way to see the spread is to read all of them and show the working. That is what this site is: one table, every source named, dated.
Who it is for
Anyone about to buy this service who wants to know what it costs before they ask, and who would rather see the published prices than a range somebody made up.
What is on this site
One question, "basement tanking", answered with a quote form that works on the page with no account, 5 guides on the questions around it, a data table you can cite (the figures and their method), and the sources every figure rests on.
- Basement tanking rates: every per m² figure a UK firm publishes: Every UK waterproofing firm we read that publishes its own per square metre rate for basement tanking, the rate, and the day we read it.
- Who publishes a price, and who makes you ask: 3 of 57 waterproofing pages read for basement tanking publish a rate of their own. These are the firms that price only after a survey.
- Basement tanking cost per m²: what UK firms publish, by system: Basement tanking cost per m² in the UK by system, from firms' own pages: Type A tanking £40 to £100, cavity drain membrane £70 to £150, external £90 to £180.
- Basement waterproofing: Type A, B and C under BS 8102, and what each costs: Basement waterproofing types under BS 8102: barrier tanking (A), structurally integral (B) and drained cavity (C), what each suits and the per m² rates firms publish.
- Cellar tanking cost: what tanking an old brick cellar costs in the UK: Cellar tanking cost in the UK: £3,000 to £8,000 for a single room cellar with cementitious tanking, more for living space, at £40 to £100 per m² from firms' own pages.
What it does not do
- No ranking, no best-of list and no scores: the table is sorted by the figure, not by us.
- No paid placement, no affiliate links and no sponsored rows.
- No invented figure: a provider that publishes nothing is listed as publishing nothing.
Who answers for it
Joseph Ellul-Turner, the person who runs this site.
Reach us
Contact for a question about the site, or enquiries@basementtankingcost.co.uk. The legal terms are on Terms and Privacy.
Basement Tanking Cost is a free introduction service operated by Joseph Ellul (5 Dolce Vita Corte, Triq San Mikiel, San Gwann, SGN 2303, Malta). We pass your details to basement waterproofing contractors covering your area, who quote you directly; we may receive a fee from them, and you pay nothing and are under no obligation. We do not do the work ourselves. It carries no advertising, no sponsored placement and no affiliate links, and no provider in the table has paid to be there or can pay to be removed. Every figure is read from the named provider's own public page on the date shown and is what that provider advertises, not a quote for your job. Prices move; check the source before you rely on a row.