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Company No. 10230076 · Incorporated 14 Jun 2016

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.

Full P&L filedSection F · ConstructionSIC 43220Plumbing, heat and air-conditioning installation
Status
Active
Location
Hemel Hempstead, South East
Age
10 yrs · since 2016
Type
Private Limited Company
Latest accounts · year to 30 Jun 2025

Key figures

IndependentSmall teamOperating leverageBoring industry
Revenue
£838k
Growth ▲100.6%
Profit
£55.8k
Growth ▲299.7%
Profit margin
6.7%
Gross 15.5%
Employees
1
Change —
Profit / employee
£55.8k
Revenue/employee £838k
Profitable streak
2yrs
Consecutive profitable years in our data

Badges are automated estimates derived from the filed figures — not statements of fact about the company.

3 filed years

Financial history

Multi-year financials, oldest to newest
Year to30 Jun 202330 Jun 202430 Jun 2025
DisclosureNo P&LFull P&LFull 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)—01
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
SourceFullAccounts · bulk data Aug 2024FullAccounts · bulk data Aug 2024FullAccounts · bulk data Sep 2025
Derived from the latest filing

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.
Indirect — not revenue

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 —
Same industry, similar size

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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.