MWH TREATMENT LIMITED
Company number 01535477 · Monitor this company
Executive summary
MWH Treatment Limited presents as a low-risk entity primarily due to its established operating history in the essential water infrastructure sector and its ownership by a deep-pocketed global parent, Stantec. While the current dataset lacks granular financial figures to independently verify liquidity, the substantial share capital, full accounts filing status, and up-to-date regulatory compliance suggest a well-managed subsidiary. The primary focus for further due diligence should be on obtaining the detailed financial statements to review intercompany dependencies and working capital dynamics.
Overview
- Company type
- Private Limited Company
- Incorporated
- 1980-12-17
- Registered office
- Spring Lodge 172 Chester Road, Helsby, Cheshire, England, WA6 0AR
- Postcode
- WA6 0AR
- Capital
- 4,851,000 GBP
- Accounts category
- Full
- Charges
- 2 outstanding
Accounts
- Last made up to
- 2025-03-31
- Next due by
- 2026-12-31
- Financial year end
- 31 March
Confirmation statement
- Last statement dated
- 2026-08-12
- Next due by
- 2027-08-26
Nature of business (SIC)
- 42910 Construction of water projects
- 43999 Other specialised construction activities not elsewhere classified
Officers 8 current · 49 resigned
Group structure 1 subsidiary
Controlled by MWH UK ACQUISITIONS LIMITED — since 2018-11-02
From persons-with-significant-control filings on the public register.
Licensed visa sponsor
Licensed by the Home Office to sponsor worker visas: Skilled Worker (Worker (A rating)).
Matched by registered name to the register of licensed sponsors (Home Office, updated daily) — check the register itself before relying on it. Contains public sector information licensed under the Open Government Licence v3.0.
Modern slavery statement
Registered a modern slavery statement for 2026 (period to 2026-03-31) — 7 years on the registry.
Read the statement summary on the government modern slavery statement registry. Contains public sector information licensed under the Open Government Licence v3.0.
Data protection registration
Registered with the ICO as a data protection fee payer — Z1797602 (Tier 3), registered since 2009.
Information Commissioner's Office register of fee payers, licensed under the Open Government Licence.
Gender pay gap
28.7%
Women's median hourly pay below men's, 2025/26 · in the bottom quarter for parity
Previous company names
| Name | Date changed |
|---|---|
| STANTEC TREATMENT LIMITED | 2018-12-05 |
| MWH TREATMENT LIMITED | 2017-12-29 |
| BIWATER TREATMENT LIMITED | 2010-12-29 |
| BIWATER EUROPE LIMITED | 1997-07-10 |
| BIWATER TREATMENT LIMITED | 1993-01-01 |
Previous registered addresses 7
| Address | Changed on |
|---|---|
| BUCKINGHAM COURT KINGSMEAD BUSINESS PARK, LONDON ROAD, HIGH WYCOMBE, BUCKINGHAMSHIRE, HP11 1JU | 2018-12-12 |
| EGISTERED OFFICE CHANGED ON 13/03/2015 FROM, TERRIERS HOUSE 201 AMERSHAM ROAD, HIGH WYCOMBE, BUCKINGHAMSHIRE, HP13 5AJ | 2015-03-13 |
| BIWATER PLACE GREGGE STREET, HEYWOOD, LANCASHIRE, OL10 2DX | 2011-01-05 |
| GREGGE ST, HEYWOOD, LANCS, OL10 2DX | 2009-08-06 |
| GREGGE ST, HEYWOOD, LANCS, OL10 2DX | 2009-08-06 |
| BIWATER HOUSE, STATION APPROACH, DORKING, SURREY RH4 1TZ | 1988-09-23 |
| BIWATER HOUSE, STATION APPROACH, DORKING, SURREY RH4 1TZ | 1988-09-23 |
Among its peers
The oldest
of 16 similar companies in WA, trading since 1980
The class of 1980
49%
of the 8,850 companies incorporated in 1980 are still active today; 42% have since been dissolved.
A fact about the year, not a forecast for this company.
Property in England & Wales 1 title
- Leasehold
- 1
- Most recent registration
- 2024-12-10
- Where
- City Of Derby
| Title number | County | Tenure | Registered | Price paid |
|---|---|---|---|---|
| DY586203 | City Of Derby | Leasehold | 2024-12-10 | — |
For addresses and the authoritative register entry, use HM Land Registry's official search (£3 per title).
Information produced by HM Land Registry. © Crown copyright 2026. Dataset as at 2026-08.
Businesses that transport or deal in waste must register with the Environment Agency. You can check this company on the official register of waste carriers, brokers and dealers.