How much does J Mechanical Ltd make?

J Mechanical Ltd reported revenue of £1.1m and £172k profit in the year to 31 Aug 2025, according to its accounts filed at Companies House.

How many employees does J Mechanical Ltd have?

J Mechanical Ltd reported an average of 5 employees in the year to 31 Aug 2025.

Is J Mechanical Ltd profitable?

Yes — J Mechanical Ltd reported a profit of £172k in the year to 31 Aug 2025.

Company No. 10326607 · Incorporated 12 Aug 2016

J Mechanical Ltd

Registered name: J MECHANICAL LTD

Part of MJ Holdings (Ruislip) Limited group

J Mechanical Ltd made £1.1m revenue and £172k profit in the year to 31 Aug 2025.

J Mechanical Ltd’s revenue fell 6% to £1.1m in the year to 31 Aug 2025, with £172k profit and 5 employees. The company is classified under “plumbing, heat and air-conditioning installation” and is based in Ruislip; we hold 4 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 43220Plumbing, heat and air-conditioning installation SIC 43390Other building completion and finishing

Status: Active
Location: Ruislip, London
Age: 10 yrs · since 2016
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.

Latest accounts · year to 31 Aug 2025

Key figures

Small teamBoring industry

Revenue

£1.1m

Growth ▼5.6%

Profit

£172k

Growth ▲6.3%

Profit margin

16.1%

Gross 52.1%

Employees

Change 0%

Profit / employee

£34.3k

Revenue/employee £213k

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.

4 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 Aug 2022	31 Aug 2023	31 Aug 2024	31 Aug 2025
Disclosure	No P&L	No P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	—	—	£1.1m	£1.1m
Cost of sales	—	—	£577k	£511k
Gross profit	—	—	£553k	£556k
Operating profit	—	—	£238k	£244k
Profit before tax	—	—	£220k	£229k
Profit after tax	—	—	£161k	£172k
Profit (best available)	—	—	£161k	£172k
Employees (average)	6	5	5	5
Ratios
Profit margin	—	—	14.3%	16.1%
Gross margin	—	—	48.9%	52.1%
Revenue per employee	—	—	£226k	£213k
Profit per employee	—	—	£32.3k	£34.3k
Growth (year on year)
Revenue growth	—	—	—	▼5.6%
Profit growth	—	—	—	▲6.3%
Headcount growth	—	▼16.7%	0%	0%
Balance sheet — indirect signals, not revenue
Cash at bank	£269k	£168k	£132k	£109k
Net assets	£765k	£505k	£404k	£426k
Fixed assets	£91.2k	£165k	£194k	£153k
Current assets	£896k	£555k	£474k	£532k
Debtors	£475k	£237k	£148k	£208k
Source	FilletedAccounts · bulk data May 2024	FilletedAccounts · bulk data May 2024	FilletedAccounts · bulk data May 2025	FullAccounts · bulk data Feb 2026

Derived from the latest filing

How the business works

Profit margin: 16.1%; Profit ÷ revenue.
Gross margin: 52.1%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £213k; Revenue ÷ average employees.
Profit per employee: £34.3k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 14.3%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 19.5%; 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: ▲6%; Now £426k
Cash at bank: ▼18%; Now £109k
Headcount: 0%; Now 5
Deferred income: —; Now —
Fixed assets: ▼21%; Now £153k

Corporate ownership

Group structure

Ownership chain

MJ Holdings (Ruislip) Limitedultimate parent75–100%
J Mechanical Ltdthis company

Bands show the share of ownership each company holds in the one below it.

Sister companies (1)

MJ Properties (Ruislip) LimitedFigures not disclosed

From the Persons with Significant Control register (corporate controllers only).

Same industry, similar size

Similar profitable businesses

Industry benchmarks →

Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Aug 2025 (profit £172k), from the Companies House accounts bulk data published Feb 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.