- Companies
- Civil engineering
- William and Henry Alexander (Civil Engineering) Limited
William and Henry Alexander (Civil Engineering) Limited
- Company number
- NI013391
- Incorporated
- 26 Feb 197947 years trading
- Registered office
- 2 Waterworks Road, Omagh, Co.tyrone, BT79 7JS
- Nature of business
- Construction of other civil engineering projects n.e.c.
William and Henry Alexander (Civil Engineering) Limited is a 47-year-old private limited company registered in Co.tyrone, company number NI013391, one of the UK's civil engineering contractors. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £411K (+78.2%) on the year before, to £937K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £1.9M against £828K owed within a year: 2.4 times cover.
- 16 employees on average, up from 14 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £937K | £258K | £1.9M | £828K | 16 |
| 31 Mar 2024 | £526K | £129K | £1M | £324K | 14 |
| 31 Mar 2023 | £598K | £169K | £1.9M | £1.1M | 23 |
| 31 Mar 2022 | £707K | £223K | £3.7M | £2.8M | 28 |
| 31 Mar 2021 | £804K | £399K | £3.3M | £2.2M | 25 |
| 31 Mar 2020 | £662K | £107K | £1.6M | £695K | 20 |
| 31 Mar 2019 | £765K | £130K | £2.4M | £1.4M | 19 |
| 31 Mar 2018 | £523K | £395K | £2.5M | £1.7M | 19 |
| 31 Mar 2017 | £387K | £409K | £2.5M | £2M | |
| 31 Mar 2016 | £129K | £466K | £2.9M | £2.1M |
Public contracts won
William and Henry Alexander (Civil Engineering) Limited has 3 public sector contract awards on record, from 2016 to 2024. Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 2 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Fermanagh and Omagh District Council1 award
- Northern Ireland Electricity Networks1 award
- Sunderland City Council1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Fermanagh and Omagh District Council | Tender for the Procurement of Contractor Frameworks (3 Lots) | Ceiling, not shown | 6 Feb 2024 |
| Northern Ireland Electricity Networks | B930 (2018) Civil Engineering Works | Ceiling, not shown | 1 Aug 2018 |
| Sunderland City Council | Framework for the Provision of Civil Engineering and Infrastructure Works | Ceiling, not shown | 1 Apr 2016 |
Where William and Henry Alexander (Civil Engineering) Limited is registered
The registered office is in Co.tyrone (BT79), in the Fermanagh and Omagh local authority area, Northern Ireland. Show BT79 7JS on a map.
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Also registered at this address
2 other companies use the same registered office as William and Henry Alexander (Civil Engineering) Limited.
- Alexander Mills Civils LtdCivil engineering
- W & H Alexander LtdCivil engineering
What happens if William and Henry Alexander (Civil Engineering) Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- NI013391
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 February 1979 (47 years ago)
- Registered office
- 2 Waterworks Road, Omagh, Co.tyrone, BT79 7JS
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 31 December 2025
- Charges (mortgages)
- 1 outstanding of 4 registered
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies
Other active civil engineering contractors.
Frequently asked questions
When are William and Henry Alexander (Civil Engineering) Limited's accounts due?
William and Henry Alexander (Civil Engineering) Limited's next accounts are due at Companies House by 31 December 2026 (in 78 days), covering the period to 31 March 2026.
When is William and Henry Alexander (Civil Engineering) Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is William and Henry Alexander (Civil Engineering) Limited still trading?
William and Henry Alexander (Civil Engineering) Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does William and Henry Alexander (Civil Engineering) Limited do?
William and Henry Alexander (Civil Engineering) Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is William and Henry Alexander (Civil Engineering) Limited?
William and Henry Alexander (Civil Engineering) Limited was incorporated on 26 February 1979, 47 years ago.
Has William and Henry Alexander (Civil Engineering) Limited won public sector contracts?
Yes. William and Henry Alexander (Civil Engineering) Limited has 3 contract awards from public bodies on Contracts Finder and Find a Tender, most recently from FERMANAGH AND OMAGH DISTRICT COUNCIL.
What is the penalty if William and Henry Alexander (Civil Engineering) Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View William and Henry Alexander (Civil Engineering) Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.