Dey Mechanical Services Ltd
Registered name: DEY MECHANICAL SERVICES LTD
Dey Mechanical Services Ltd made £838k revenue and £55.8k profit in the year to 30 Jun 2025.
Dey Mechanical Services Ltd’s revenue grew 101% to £838k in the year to 30 Jun 2025, with £55.8k profit and 1 employee. The company is classified under “plumbing, heat and air-conditioning installation” and is based in Hemel Hempstead; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Hemel Hempstead, South East
- Age
- 10 yrs · since 2016
- Type
- Private Limited Company
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 30 Jun 2023 | 30 Jun 2024 | 30 Jun 2025 |
|---|---|---|---|
| Disclosure | No P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | — | £418k | £838k |
| Cost of sales | — | £391k | £708k |
| Gross profit | — | £26.9k | £130k |
| Operating profit | — | £20.1k | £73.2k |
| Profit before tax | — | £20.1k | £73.2k |
| Profit after tax | — | £13.9k | £55.8k |
| Profit (best available) | — | £13.9k | £55.8k |
| Staff costs | — | £222k | — |
| Employees (average) | — | 0 | 1 |
| Ratios | |||
| Profit margin | — | 3.3% | 6.7% |
| Gross margin | — | 6.5% | 15.5% |
| Revenue per employee | — | — | £838k |
| Profit per employee | — | — | £55.8k |
| Growth (year on year) | |||
| Revenue growth | — | — | ▲100.6% |
| Profit growth | — | — | ▲299.7% |
| Balance sheet — indirect signals, not revenue | |||
| Cash at bank | — | £72.7k | £57.1k |
| Net assets | £100 | £9.2k | £27.2k |
| Fixed assets | £0 | £0 | — |
| Current assets | £100 | £9.2k | £70.3k |
| Debtors | — | — | £13.2k |
| Source | FullAccounts · bulk data Aug 2024 | FullAccounts · bulk data Aug 2024 | FullAccounts · bulk data Sep 2025 |
How the business works
- Profit margin
- 6.7%
- Profit ÷ revenue.
- Gross margin
- 15.5%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £838k
- Revenue ÷ average employees.
- Profit per employee
- £55.8k
- 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
- 1.6%
- 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
- ▲196%
- Now £27.2k
- Cash at bank
- ▼22%
- Now £57.1k
- Headcount
- —
- Now 1
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Similar profitable businesses
- GT Mechanical Services LtdHornchurch · Plumbing, heat and air-conditioning installation
- Revenue
- £869k
- Profit
- £95k
- Staff
- 0
- Green Valley Builds LimitedStockport · Plumbing, heat and air-conditioning installation
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- Profit
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- Boilercare (UK) LimitedWymondham · Plumbing, heat and air-conditioning installation
- Revenue
- £688k
- Profit
- £114k
- Staff
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- Sim-Air LtdVirginia Water · Plumbing, heat and air-conditioning installation
- Revenue
- £675k
- Profit
- £9.1k
- Staff
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- Joe Drury Plumbing and Heating LimitedEastbourne · Plumbing, heat and air-conditioning installation
- Revenue
- £664k
- Profit
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- J Mechanical LtdRuislip · Plumbing, heat and air-conditioning installation
- Revenue
- £1.1m
- Profit
- £172k
- Staff
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Sources
Latest figures from FullAccounts for the year to 30 Jun 2025 (profit £55.8k), from the Companies House accounts bulk data published Sep 2025. 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.