How much does Berks Insulation Limited make?

Berks Insulation Limited reported revenue of £37.1m and £6m profit in the year to 30 Nov 2025, according to its accounts filed at Companies House.

How many employees does Berks Insulation Limited have?

Berks Insulation Limited reported an average of 24 employees in the year to 30 Nov 2025.

Is Berks Insulation Limited profitable?

Yes — Berks Insulation Limited reported a profit of £6m in the year to 30 Nov 2025.

Company No. 08783848 · Incorporated 20 Nov 2013

Berks Insulation Limited

Registered name: BERKS INSULATION LIMITED

Part of Berks US Holdings Ltd group

Berks Insulation Limited made £37.1m revenue and £6m profit in the year to 30 Nov 2025.

Berks Insulation Limited’s revenue fell 54% to £37.1m in the year to 30 Nov 2025, with £6m profit and 24 employees. The company is classified under “plumbing, heat and air-conditioning installation” and is based in Slough; we hold 5 years of its filed accounts.

Full P&L filedSection F · ConstructionSIC 43220Plumbing, heat and air-conditioning installation

Status: Active
Location: Slough, South East
Age: 12 yrs · since 2013
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. From the filing: “Berks US Holdings Ltd”

Latest accounts · year to 30 Nov 2025

Key figures

Capital-lightBoring industryCash flow filed

Revenue

£37.1m

Growth ▼54.3%

Profit

£6m

Growth ▼53.8%

Profit margin

16.2%

Gross 29%

Employees

Change ▲14.3%

Profit / employee

£251k

Revenue/employee £1.5m

Profitable streak

5yrs

Consecutive profitable years in our data

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

5 filed years

Financial history

Multi-year financials, oldest to newest
Year to	30 Nov 2021	30 Nov 2022	30 Nov 2023	30 Nov 2024	30 Nov 2025
Disclosure	Full P&Lread from filing text	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£17m	£13.5m	£63.6m	£81.2m	£37.1m
Cost of sales	£12.9m	£10.8m	£41.3m	£60.5m	£26.4m
Gross profit	£4.1m	£2.6m	£22.3m	£20.7m	£10.8m
Operating profit	£2.2m	£1.1m	—	£17.2m	£7.6m
Profit before tax	£2.2m	£1.1m	£18.9m	£17.4m	£8m
Profit after tax	£1.7m	£879k	£14.5m	£13m	£6m
Profit (best available)	£1.7m	£879k	£14.5m	£13m	£6m
Staff costs	£480k	£554k	£887k	£1.1m	£1.3m
Employees (average)	25	17	21	21	24
Ratios
Profit margin	10.2%	6.5%	22.9%	16.1%	16.2%
Gross margin	24.1%	19.7%	35.1%	25.5%	29%
Revenue per employee	£682k	£791k	£3m	£3.9m	£1.5m
Profit per employee	£69.7k	£51.7k	£692k	£621k	£251k
Cash conversion	−148%	−482.3%	—	97.8%	−2.4%
Growth (year on year)
Revenue growth	—	▼21.1%	▲372.5%	▲27.8%	▼54.3%
Profit growth	—	▼49.5%	▲1554%	▼10.3%	▼53.8%
Headcount growth	—	▼32%	▲23.5%	0%	▲14.3%
Balance sheet — indirect signals, not revenue
Cash at bank	£1.4m	£1.3m	£10.4m	£13.6m	£11.6m
Net assets	£6.2m	£3.1m	£13.1m	£19.8m	£24.3m
Fixed assets	£383k	£286k	£620k	£726k	£598k
Current assets	£8.3m	£6.3m	£23.3m	£28.3m	£31m
Debtors	£837k	£2.3m	£4.5m	£14.7m	£19.3m
Deferred income	£914k	£1.4m	—	—	—
Cash from operations	−£3.2m	−£5.3m	£16.6m	£16.8m	−£179k
Source	FullAccounts · bulk data Nov 2023	FullAccounts · bulk data Nov 2023	FullAccounts · bulk data Nov 2024	FullAccounts · bulk data Aug 2025	FullAccounts · bulk data Sep 2026

Derived from the latest filing

How the business works

Profit margin: 16.2%; Profit ÷ revenue.
Gross margin: 29%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £1.5m; Revenue ÷ average employees.
Profit per employee: £251k; Profit ÷ average employees.
Cash conversion: −2.4%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 1.6%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 52%; 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: ▲23%; Now £24.3m
Cash at bank: ▼15%; Now £11.6m
Headcount: ▲14%; Now 24
Deferred income: —; Now —
Fixed assets: ▼18%; Now £598k

Corporate ownership

Group structure

Ownership chain

Berks US Holdings Ltdultimate parent75–100%
Berks Insulation Limitedthis company

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

Sister companies (1)

Berks Properties LtdFigures 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 30 Nov 2025 (profit £6m), from the Companies House accounts bulk data published Sep 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.