KNAUF INSULATION LIMITED
Get an alert when KNAUF INSULATION LIMITED files next
Leroy will email you the moment a new filing lands at Companies House — one short note per filing, nothing else.
Next accounts due
2026-09-30 (in 4mo)
Last filed for 2024-12-31
Confirmation statement due
2027-01-05 (in 8mo)
Last made up 2025-12-22
Watchouts
None on the register
Cash
£2M
-43.5% vs 2023
Net assets
£119M
+45% vs 2023
Employees
608
+2.7% vs 2023
Profit before tax
£46M
+3.1% vs 2023
Name history
Renamed 4 times since incorporation
- KNAUF INSULATION LIMITED 2002-12-18 → present
- KNAUFALCOPOR LTD. 2002-03-20 → 2002-12-18
- OWENS CORNING ALCOPOR UK LTD 2000-06-29 → 2002-03-20
- OWENS-CORNING BUILDING PRODUCTS (U.K.) LIMITED 1994-06-06 → 2000-06-29
- PILKINGTON INSULATION LIMITED 1985-06-27 → 1994-06-06
Net assets
2-year trend · vs Industrials median
Accounts
2-year trend · latest reflected 2024-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Turnover | £269,087,000 | £247,419,000 | |
| Operating profit | £43,967,000 | £45,741,000 | |
| Profit before tax | £44,449,000 | £45,827,000 | |
| Net profit | £37,626,000 | £36,997,000 | |
| Cash | £3,478,000 | £1,964,000 | |
| Total assets less current liabilities | £85,727,000 | £128,665,000 | |
| Net assets | £82,247,000 | £119,244,000 | |
| Equity | £82,247,000 | £119,244,000 | |
| Average employees | 592 | 608 | |
| Wages | £33,187,000 | £35,139,000 |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Operating margin | 16.3% | 18.5% | |
| Net margin | 14.0% | 15.0% | |
| Return on capital employed | 51.3% | 35.6% | |
| Current ratio | 1.17x | 1.10x | |
| Interest cover | 2198.35x | 384.38x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Auditor
- Grant Thornton UK LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“Based on the work we have performed, we have not identified any material uncertainties relating to events or conditions that, individually or collectively, may cast significant doubt on the company's ability to continue as a going concern for a period of at least twelve months from when the financial statements are authorised for issue.”
Significant events
- “During the year, the company completed a significant upgrade to its St Helens plant with a >£50m investment in a larger furnace and new UK-first forming technology.”
- “In May 2024 the company also announced a major investment of circa €200 million in a new state-of-the-art rock mineral wool factory to serve the UK market.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
6 active · 32 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| BIGNELL, Michael James | Secretary | 2021-09-01 | — | — |
| BOSSAN, Dominique François Henri | Director | 2024-02-16 | Mar 1965 | French |
| DUCARME, David Charles | Director | 2021-09-01 | Mar 1970 | Belgian |
| FLAHERTY, Lisa | Director | 2024-12-09 | Sep 1978 | British |
| HARGREAVES, Neil James | Director | 2011-05-01 | Oct 1976 | British |
| LAURENT, Alexandre | Director | 2019-03-15 | Feb 1982 | French |
Show 32 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| CORF, Derek | Secretary | — | 1994-07-19 |
| FRIMSTON, John Michael | Secretary | 1994-07-19 | 2000-08-21 |
| GRIMES, David Peter Justus | Secretary | 2003-04-07 | 2021-09-01 |
| ROGERS, Joseph Anthony | Secretary | 2000-08-21 | 2003-04-07 |
| BLACKBURN, Roland | Director | 1999-09-28 | 2000-08-21 |
| BRAKE, James Alan | Director | 1994-08-15 | 1997-12-03 |
| CARMAN, Thomas | Director | 1994-06-16 | 1997-06-17 |
| CLARKE, Roy | Director | — | 1994-06-02 |
| CORF, Derek | Director | — | 1994-07-19 |
| DAWSON, James Norman | Director | — | 1994-07-19 |
| DESLYPERE, Frédéric Marc | Director | 2018-08-21 | 2021-12-31 |
| FAIRLEY, Donald Grant | Director | — | 1998-06-29 |
| FORBES, John Durie | Director | — | 1999-09-28 |
| GRUNWELL, Peter Higson | Director | — | 1993-07-01 |
| HAVARD, Alan David, Dr | Director | — | 1994-06-02 |
| HOLTON, Keven Roy | Director | 1993-11-01 | 1999-09-28 |
| JEFFERIES, John | Director | 1997-06-17 | 2000-08-21 |
| KARCHER, Richard Whitmore | Director | 1998-09-04 | 1999-09-28 |
| KARCHER, Richard W | Director | 1994-06-16 | 1997-06-17 |
| KATSERS, Guy | Director | 2000-08-21 | 2002-09-30 |
| KNAUF, Carl Rudolf Thies | Director | 2015-12-22 | 2018-08-21 |
| KNOOP, Yoram | Director | 2000-08-21 | 2003-02-28 |
| KNOWLTON, Warren Decatur | Director | 1994-06-16 | 1997-06-17 |
| NIGHTINGALE, Glen | Director | 1993-07-01 | 1994-06-02 |
| NILSSON, Jens Olof | Director | 2011-05-01 | 2018-08-21 |
| ROBSON, Michael Anthony | Director | 2002-05-28 | 2015-12-18 |
| ROGERS, Joseph Anthony | Director | 1999-09-28 | 2011-12-29 |
| SANTICOLI, Jean Francois | Director | 2000-08-21 | 2002-12-31 |
| SEARSON, Hugh Mager | Director | — | 1994-06-02 |
| SINFIELD, John Haydn | Director | 2011-05-01 | 2019-02-28 |
| SOMERVILLE, Ronald Dennis Neale | Director | — | 1994-06-02 |
| VANDESTRICK, Pierre Yves | Director | 2000-08-21 | 2005-06-15 |
Ownership
Persons with significant control
Filing timeline
Last 20 of 170 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2025-12-29 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-09-19 | AA | accounts | Accounts with accounts type full | |
| 2025-01-03 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-12-10 | AP01 | officers | Appoint person director company with name date | |
| 2024-10-08 | AA | accounts | Accounts with accounts type full | |
| 2024-03-25 | AD01 | address | Change registered office address company with date old address new address | |
| 2024-02-16 | AP01 | officers | Appoint person director company with name date | |
| 2024-01-03 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2023-12-21 | CH01 | officers | Change person director company with change date | |
| 2023-12-21 | CH01 | officers | Change person director company with change date | |
| 2023-10-09 | AA | accounts | Accounts with accounts type full | |
| 2023-01-04 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-10-05 | AA | accounts | Accounts with accounts type full | |
| 2022-03-30 | TM01 | officers | Termination director company with name termination date | |
| 2022-01-20 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-01-13 | AP01 | officers | Appoint person director company with name date | |
| 2022-01-12 | AP03 | officers | Appoint person secretary company with name date | |
| 2022-01-12 | TM02 | officers | Termination secretary company with name termination date | |
| 2021-10-07 | AA | accounts | Accounts with accounts type full | |
| 2021-02-24 | CS01 | confirmation-statement | Confirmation statement with no updates |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 2
- Capital events
- 0
- Officers appointed
- 0
- Officers resigned
- 0
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.
Year-on-year
FY2023 → FY2024 · period ending 2024-12-31 vs 2023-12-31
-
Turnover
-8.1%
£269,087,000 £247,419,000
-
Cash
-43.5%
£3,478,000 £1,964,000
-
Net assets
+45%
£82,247,000 £119,244,000
-
Employees
+2.7%
592 608
-
Operating profit
+4%
£43,967,000 £45,741,000
-
Profit before tax
+3.1%
£44,449,000 £45,827,000
-
Wages
+5.9%
£33,187,000 £35,139,000
Each % is (latest − prior) ÷ |prior| for the line item as filed. The comparison is only shown when the latest and prior accounts cover broadly equal-length periods — short or long stubs (typical around incorporation or a year-end change) are suppressed rather than misrepresented. Lines a company doesn't report are omitted. About these numbers