How much does Warmflow Engineering Co.limited make?

Warmflow Engineering Co.limited reported revenue of £20.3m and £2.1m profit in the year to 30 Jun 2025, according to its accounts filed at Companies House.

How many employees does Warmflow Engineering Co.limited have?

Warmflow Engineering Co.limited reported an average of 83 employees in the year to 30 Jun 2025.

Is Warmflow Engineering Co.limited profitable?

Yes — Warmflow Engineering Co.limited reported a profit of £2.1m in the year to 30 Jun 2025.

Company No. NI016292 · Incorporated 1 Dec 1982

Warmflow Engineering Co.limited

Registered name: WARMFLOW ENGINEERING CO.LIMITED

Warmflow Engineering Co.limited made £20.3m revenue and £2.1m profit in the year to 30 Jun 2025.

Warmflow Engineering Co.limited’s revenue was £20.3m in the year to 30 Jun 2025, with £2.1m profit and 83 employees. The company is classified under “manufacture of central heating radiators and boilers” and is based in Lisburn; we hold 4 years of its filed accounts.

Full P&L filedSection C · ManufacturingSIC 25210Manufacture of central heating radiators and boilers

Status: Active
Location: Lisburn, Northern Ireland
Age: 43 yrs · since 1982
Type: Private Limited Company

Latest accounts · year to 30 Jun 2025

Key figures

IndependentCapital-lightOperating leverage

Revenue

£20.3m

Growth ▲0.4%

Profit

£2.1m

Growth ▲108.8%

Profit margin

10.5%

Gross 38.5%

Employees

Change ▲3.8%

Profit / employee

£25.6k

Revenue/employee £244k

Profitable streak

4yrs

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	30 Jun 2022	30 Jun 2023	30 Jun 2024	30 Jun 2025
Disclosure	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£17.8m	£19.4m	£20.2m	£20.3m
Cost of sales	£11.7m	£12.1m	£12.9m	£12.5m
Gross profit	£6.1m	£7.3m	£7.3m	£7.8m
Operating profit	£1.6m	£2.8m	£1m	£2.4m
Profit before tax	£1.6m	£2.9m	£1m	£2.4m
Profit after tax	£1.5m	£2.6m	£1m	£2.1m
Profit (best available)	£1.5m	£2.6m	£1m	£2.1m
Staff costs	£2.9m	£3.1m	£3.3m	£3.5m
Employees (average)	80	84	80	83
Ratios
Profit margin	8.6%	13.6%	5%	10.5%
Gross margin	34.4%	37.8%	36.1%	38.5%
Revenue per employee	£222k	£231k	£253k	£244k
Profit per employee	£19.1k	£31.4k	£12.7k	£25.6k
Cash conversion	43.4%	−17.5%	209.4%	—
Growth (year on year)
Revenue growth	—	▲9.2%	▲4.1%	▲0.4%
Profit growth	—	▲72.9%	▼61.4%	▲108.8%
Headcount growth	—	▲5%	▼4.8%	▲3.8%
Balance sheet — indirect signals, not revenue
Cash at bank	£1.5m	£579k	£2.3m	£2.7m
Net assets	£10.4m	£12.7m	£13.4m	£15.3m
Fixed assets	£667k	£322k	£399k	£1.4m
Current assets	£12.2m	£15.1m	£16.5m	£17.7m
Debtors	£2.6m	£2.9m	£2.9m	£2.6m
Deferred income	£429k	£458k	£631k	£696k
Cash from operations	£678k	−£497k	£2.1m	—
Source	FullAccounts · bulk data Mar 2024	FullAccounts · bulk data Mar 2024	FullAccounts · bulk data Mar 2025	FullAccounts · bulk data Mar 2026

Derived from the latest filing

How the business works

Profit margin: 10.5%; Profit ÷ revenue.
Gross margin: 38.5%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £244k; Revenue ÷ average employees.
Profit per employee: £25.6k; Profit ÷ average employees.
Cash conversion: —; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 6.8%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 3.4%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 12.9%; 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: ▲14%; Now £15.3m
Cash at bank: ▲17%; Now £2.7m
Headcount: ▲4%; Now 83
Deferred income: ▲10%; Now £696k
Fixed assets: ▲247%; Now £1.4m

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 30 Jun 2025 (profit £2.1m), from the Companies House accounts bulk data published Mar 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.