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Company No. 01481063 · Incorporated 22 Feb 1980

Derry Building Services Limited

Registered name: DERRY BUILDING SERVICES LIMITED

Part of Bowmer and Kirkland Limited group

Derry Building Services Limited made £80.2m revenue and £1.4m profit in the year to 31 Aug 2025.

Derry Building Services Limited’s revenue fell 5% to £80.2m in the year to 31 Aug 2025, with £1.4m profit. The company is classified under “electrical installation” and is based in Newark; we hold 3 years of its filed accounts.

Full P&L filedSIC 43210Electrical installationSIC 43220Plumbing, heat and air-conditioning installation
Status
Active
Location
Newark
Age
46 yrs · since 1980
Type
Private Limited Company
Latest accounts · year to 31 Aug 2025

Key figures

Revenue
£80.2m
Growth ▼4.9%
Profit
£1.4m
Growth ▲3.9%
Profit margin
1.7%
Gross 11.8%
Employees
—
Change —
Profit / employee
—
 
Profitable streak
3yrs
Consecutive profitable years in our data
3 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Aug 202331 Aug 202431 Aug 2025
DisclosureFull P&LFull P&LFull P&L
Profit & loss
Revenue (turnover)£69.3m£84.3m£80.2m
Cost of sales−£60.6m−£76m−£70.7m
Gross profit£8.7m£8.3m£9.5m
Operating profit£2.3m£1.2m£1.4m
Profit before tax£2.8m£1.8m£1.9m
Profit after tax£2.2m£1.3m£1.4m
Profit (best available)£2.2m£1.3m£1.4m
Employees (average)———
Ratios
Profit margin3.1%1.6%1.7%
Gross margin12.6%9.8%11.8%
Growth (year on year)
Revenue growth—▲21.6%▼4.9%
Profit growth—▼38%▲3.9%
Balance sheet — indirect signals, not revenue
Net assets———
SourceAccounts · bulk data Apr 2025Accounts · bulk data Apr 2025Accounts · bulk data Apr 2026
Derived from the latest filing

How the business works

Profit margin
1.7%
Profit ÷ revenue.
Gross margin
11.8%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
—
Revenue ÷ average employees.
Profit per employee
—
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
—
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
—
Now —
Cash at bank
—
Now —
Headcount
—
Now —
Deferred income
—
Now —
Fixed assets
—
Now —
Corporate ownership

Group structure

Ownership chain

  1. Bowmer and Kirkland Limitedultimate parent75–100%
  2. Derry Building Services Limitedthis company

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

Sister companies (30)

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

Sources

Companies House profile Filing history & original accounts

Latest figures from accounts for the year to 31 Aug 2025 (profit £1.4m), from the Companies House accounts bulk data published Apr 2026. Spotted an error? Request a correction.

Updated from Companies House on 22 Oct 2026

Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.