Data Cleansing Services
Whether it’s a customer list merged from three systems, so the same person appears four times under three spellings. Maybe half the postcodes ended up in the date’s column. Whatever the specifics, the effect is the same: you can’t report on it or import it anywhere until someone sits down and fixes it — and nobody wants to be that someone.
The usual routes don’t help much. Online software hands you a licence and a learning curve, and at the end of it you’re still the one doing the work. Doing it in-house means days of a capable person’s time spent on find-and-replace instead of their actual job. Neither of those is a solution; they’re both just a different way of owning the problem.
With our data cleansing service, you simply send us the spreadsheet, CSV or database export and we send it back clean — duplicates gone, formats consistent, invalid records flagged, ready to use. There’s no software to buy, no subscription, no credits to top up, and nothing to learn. One file, one fixed price. It really is that simple…
Transparent Data Cleansing Pricing
Our data cleansing pricing works on two things: how many columns need attention and how many rows you have. We only charge for the columns that need cleansing, so simply enter the number of messy columns, not the total.
For example, you have a 20-column file with 2,000 rows. Simply enter the number of messy columns, for instance 3, plus the total number of rows – 2,000.
You’ll see the full price before you speak to anyone. No quote form to fill out, no “contact us for pricing”.
A few example prices
| Columns | Rows | Total |
|---|---|---|
| 1 | 500 | £50 |
| 3 | 500 | £100 |
| 5 | 500 | £150 |
| 1 | 2,000 | £150 |
| 3 | 2,000 | £200 |
| 5 | 2,000 | £250 |
| 1 | 5,000 | £302 |
| 3 | 5,000 | £352 |
| 5 | 5,000 | £402 |
| 1 | 20,000 | £610 |
| 3 | 20,000 | £660 |
| 5 | 20,000 | £710 |
Please use the calculator below for your exact figures.
1 to 10. The first column is free.
500 to 100,000.
Estimated total
£175
Over our online range — please contact us for a quote.
Minimum job £50. Over 100,000 rows or 10 columns, please contact us for a quote.
What Types of Messy Data We Cleanse
Most files have some combination of the following:
Duplicate records. The same customer entered four times under three spellings, repeated invoice numbers, rows that look different but aren’t. We identify genuine duplicates and merge or remove them without losing the good data attached to each one.
Inconsistent formatting. Dates written as 01/12/2024 and 12/01/2024 in the same column. “Ltd” and “Limited” and “LTD”. Phone numbers as 07700-900-123 and 07700900123. We pick one standard and apply it throughout.
Trailing spaces and hidden characters. Dull, invisible, and by a distance the most common problem we see — more than half of all the issues we encounter across client datasets. They’re also the reason your lookups fail and your duplicate counts are wrong.
Missing values. Blank phone numbers, absent transaction dates, empty fields that break your reporting. We flag what’s missing, fill what can be derived from elsewhere in the data, and tell you plainly what can’t.
Invalid emails and bad addresses. Misspelled domains (gmial.com), malformed entries etc. Cleaning these protects your sender reputation before it takes a hit.
Errors and typos. Misspelt names, transposed digits, prices with the decimal in the wrong place. The kind of thing that survives every automated check and only surfaces when a customer complains.
Structural problems. Merged cells, data in the wrong columns, everything crammed into one field. We normalise the structure, so the file behaves like a database rather than a document.
How Our Data Cleansing Works
- Send us the file. Excel, CSV, a database export — whatever you have. If it’s sensitive, we’ll sort a secure transfer via our SharePoint. You do not need a SharePoint account or a Microsoft licence to use this service—we provide a secure, encrypted link that allows you to upload or download files directly.
- We tell you the price. Fixed, in writing, before any work starts.
- You get the file back. Clean, in the format you sent it.
We’re a UK business, GDPR-compliant, and we handle client data under formal agreement as a matter of course. Work can be a one-off tidy-up or a periodic cleanse — quarterly, annually, before each campaign — whatever suits.
Ready to Get Your Data Cleansed?
Please use the calculator above for an instant price or contact us below.
From a 500-row mailing list to a hundred thousand-record database, the process is the same and so is the promise: you send it dirty, we send it back clean. It really is that simple…

