Rilmac Insulation Limited
Registered name: RILMAC INSULATION LIMITED
Part of Rilmac Holdings Limited groupRilmac Insulation Limited made £14.9m revenue and £41.7k profit in the year to 31 Aug 2025.
Rilmac Insulation Limited’s revenue fell 9% to £14.9m in the year to 31 Aug 2025, with £41.7k profit and 94 employees. The company is classified under “other construction installation” and is based in Lincoln; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Lincoln
- Age
- 55 yrs · since 1971
- Type
- Private Limited Company
Key figures
Financial history
| Year to | 31 Aug 2023 | 31 Aug 2024 | 31 Aug 2025 |
|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | £18.5m | £16.3m | £14.9m |
| Cost of sales | £13m | £12.3m | £11.2m |
| Gross profit | £5.5m | £4m | £3.7m |
| Operating profit | £272k | £268k | £205k |
| Profit before tax | £74.1k | £56.6k | £59.4k |
| Profit after tax | £42.3k | £42.5k | £41.7k |
| Profit (best available) | £42.3k | £42.5k | £41.7k |
| Employees (average) | 89 | 99 | 94 |
| Ratios | |||
| Profit margin | 0.2% | 0.3% | 0.3% |
| Gross margin | 29.8% | 24.5% | 24.8% |
| Revenue per employee | £208k | £165k | £159k |
| Profit per employee | £475 | £429 | £444 |
| Growth (year on year) | |||
| Revenue growth | — | ▼11.7% | ▼8.6% |
| Profit growth | — | ▲0.4% | ▼1.8% |
| Headcount growth | — | ▲11.2% | ▼5.1% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data May 2025 | Accounts · bulk data May 2025 | Accounts · bulk data Jun 2026 |
How the business works
- Profit margin
- 0.3%
- Profit ÷ revenue.
- Gross margin
- 24.8%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £159k
- Revenue ÷ average employees.
- Profit per employee
- £444
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- —
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- —
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- —
- 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
- —
- Now —
- Cash at bank
- —
- Now —
- Headcount
- ▼5%
- Now 94
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- Rilmac Holdings Limitedultimate parent75–100%
- Rilmac Insulation Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (3)
- Rilmac Scaffolding LimitedRev. £11.2m · Profit £38.3k
- Rilmac Fabrication LimitedFigures not disclosed
- Rilmac Scaffold Hire LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Sources
Latest figures from accounts for the year to 31 Aug 2025 (profit £41.7k), from the Companies House accounts bulk data published Jun 2026. Spotted an error? Request a correction.
Updated from Companies House on 19 Oct 2026
Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.