Smoke Control Services Limited
Registered name: SMOKE CONTROL SERVICES LIMITED
Part of Systemair Ab groupSmoke Control Services Limited made £6.9m revenue and a £87.1k loss in the year to 30 Apr 2025.
Smoke Control Services Limited’s revenue fell 46% to £6.9m in the year to 30 Apr 2025, with a loss of £87.1k and 53 employees. The company is classified under “other specialised construction activities” and is based in Cardiff; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Cardiff, Wales
- Age
- 33 yrs · since 1992
- Type
- Private Limited Company
Part of a group. The filing indicates this company sits within a group structure, so its results may depend on intra-group trading and it may be hard to replicate independently.
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 Mar 2022 | 30 Apr 2023 | 30 Apr 2024 | 30 Apr 2025 |
|---|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | £12.1m | £14.2m | £12.8m | £6.9m |
| Cost of sales | £8.7m | £10.3m | £8.4m | £4.5m |
| Gross profit | £3.4m | £3.8m | £4.4m | £2.4m |
| Profit before tax | £1m | £1.2m | £1.1m | −£116k |
| Profit after tax | £931k | £980k | £814k | −£87.1k |
| Profit (best available) | £931k | £980k | £814k | −£87.1k |
| Staff costs | £2.9m | £3.1m | £2.2m | £1.9m |
| Employees (average) | 61 | 59 | 54 | 53 |
| Ratios | ||||
| Profit margin | 7.7% | 6.9% | 6.4% | −1.3% |
| Gross margin | 28.4% | 27.1% | 34.3% | 34.8% |
| Revenue per employee | £199k | £240k | £237k | £131k |
| Profit per employee | £15.3k | £16.6k | £15.1k | −£1.6k |
| Growth (year on year) | ||||
| Revenue growth | — | ▲16.7% | ▼9.7% | ▼45.9% |
| Profit growth | — | ▲5.3% | ▼17% | ▼110.7% |
| Headcount growth | — | ▼3.3% | ▼8.5% | ▼1.8% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £173k | £399k | £1.3m | £0 |
| Net assets | £4.6m | £5.6m | £6.4m | £6.3m |
| Fixed assets | £23k | £32.2k | £41.2k | £0 |
| Current assets | £7.6m | £9.6m | £10.2m | £6.4m |
| Debtors | £2.9m | £4m | £3.1m | £0 |
| Deferred income | £236k | £350k | — | — |
| Source | Accounts · bulk data Jan 2024 | Accounts · bulk data Jan 2024 | FullAccounts · bulk data May 2025 | FullAccounts · bulk data Apr 2026 |
How the business works
- Profit margin
- −1.3%
- Profit ÷ revenue.
- Gross margin
- 34.8%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £131k
- Revenue ÷ average employees.
- Profit per employee
- −£1.6k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 0%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 0%
- Money owed by customers. Low = customers pay quickly.
Balance-sheet signals
Year-on-year changes in filed balance-sheet items. They can hint at momentum (or investment) but are not revenue or profit and must not be read as such.
- Net assets
- ▼1%
- Now £6.3m
- Cash at bank
- ▼100%
- Now £0
- Headcount
- ▼2%
- Now 53
- Deferred income
- —
- Now —
- Fixed assets
- ▼100%
- Now £0
Group structure
Ownership chain
- Systemair Ab (registered outside the UK register)ultimate parent75–100%
- SCS Engineering Limited75–100%
- Smoke Control Services Limitedthis company
Bands show the share of ownership each company holds in the one below it.
From the Persons with Significant Control register (corporate controllers only).
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Sources
Latest figures from FullAccounts for the year to 30 Apr 2025 (profit −£87.1k), from the Companies House accounts bulk data published Apr 2026. Spotted an error? Request a correction.
Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.