- Companies
- Civil engineering
- Ballymena
- Gilmore Engineering Ltd
Gilmore Engineering Ltd
- Company number
- NI663021
- Incorporated
- 16 Jul 20197 years trading
- Registered office
- 10C Dromona Road, Cullybackey, Ballymena, BT42 1NT
- Nature of business
- Construction of other civil engineering projects n.e.c.
Gilmore Engineering Ltd is a 7-year-old private limited company registered in Ballymena, company number NI663021, one of 13 civil engineering contractors in Ballymena. 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 down £60K on the year before, to -£60K.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £35K against £104K owed within a year: 0.3 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | -£60K | £184 | £35K | £104K | 4 |
| 31 Mar 2024 | £3 | £21K | £73K | 4 | |
| 31 Mar 2023 | £20K | £24K | £68K | 9 | |
| 31 Mar 2022 | £13K | £35K | £103K | 9 | |
| 31 Mar 2021 | £66K | £104K | £126K | 7 | |
| 31 Mar 2020 | £39K | £93K | £74K | 4 |
Where Gilmore Engineering Ltd is registered
The registered office is in Ballymena (BT42), in the Mid and East Antrim local authority area, Northern Ireland. Show BT42 1NT on a map.
Other trade companies in BT42
- Roco N.I. LtdInstallers
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- Solarflexx (NI) LtdElectricians
- Oskars Carparts LimitedMotor traders
- Bishops Auto Services LimitedMotor traders
- D G & R Services LimitedJoiners and carpenters
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What happens if Gilmore Engineering Ltd 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
- NI663021
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 July 2019 (7 years ago)
- Registered office
- 10C Dromona Road, Cullybackey, Ballymena, BT42 1NT
- 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
- 5 August 2025
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 in Ballymena
Other active civil engineering contractors registered in Ballymena.
- Kelly Civil & Utilities Pty Ltd2020
- Mte Solutions Limited2026
- MTM Utilities Limited2023
- Octagon Global Consulting Limited2023
- PMC Developments Ltd2007
- Railway Plant Services Ltd2008
- RF Groundwork Solutions Ltd2025
- RPM Un Ltd2009
All civil engineering contractors in Ballymena · All trades in Ballymena · Civil engineering across the UK
Frequently asked questions
When are Gilmore Engineering Ltd's accounts due?
Gilmore Engineering Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Gilmore Engineering Ltd'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 Gilmore Engineering Ltd still trading?
Gilmore Engineering Ltd is listed as active on the Companies House register (checked 13 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 Gilmore Engineering Ltd do?
Gilmore Engineering Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Gilmore Engineering Ltd?
Gilmore Engineering Ltd was incorporated on 16 July 2019, 7 years ago.
What is the penalty if Gilmore Engineering Ltd 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 Gilmore Engineering Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.