- Companies
- Builders
- Magherafelt
- Duffin Construction Services Ltd
Duffin Construction Services Ltd
- Company number
- NI661131
- Incorporated
- 3 May 20197 years trading
- Registered office
- 23A Belagherty Road, Magherafelt, BT45 6JJ
- Nature of business
- Construction of commercial buildings
Duffin Construction Services Ltd is a 7-year-old private limited company registered in Magherafelt, company number NI661131, one of 48 building contractors in Magherafelt. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £809 (-92.4%) on the year before, to -£1,685.
- Net assets rose in 1 of 6 year-on-year comparisons on record.
- Current assets of £3,664 against £376 owed within a year: 9.7 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | -£1,685 | £3,664 | £376 | 0 | |
| 30 Sep 2024 | -£876 | £5,693 | £373 | 0 | |
| 30 Sep 2023 | -£6 | £7,538 | £336 | 0 | |
| 30 Sep 2022 | £978 | £18K | £8,705 | 0 | |
| 30 Sep 2021 | £4,089 | £17K | £3,910 | 0 | |
| 30 Sep 2020 | £1 | 0 | |||
| 30 Sep 2019 | £1 |
Where Duffin Construction Services Ltd is registered
The registered office is in Magherafelt (BT45), in the Mid Ulster local authority area, Northern Ireland. Show BT45 6JJ on a map.
Other trade companies in BT45
- Oakleaf Modular Solutions LimitedSpecialist contractors
- Decorfinishni LtdPainters and decorators
- Tonagh Construction Services LtdSpecialist contractors
- Es Brickwork LtdSpecialist contractors
- CSS Ireland LtdSpecialist contractors
- 825 Contracts LtdBuilders
- Vind Services LtdMachinery repair and installation
- Braidwater (Strategic Land) LimitedProperty developers
What happens if Duffin Construction Services 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- NI661131
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 May 2019 (7 years ago)
- Registered office
- 23A Belagherty Road, Magherafelt, BT45 6JJ
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 2 May 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Magherafelt
Other active building contractors registered in Magherafelt.
- E C Construction Ltd2000
- Eop Contracts Ltd2024
- HK Joinery & Building Contractor Ltd2017
- Incrementum (Europe) Ltd2023
- MFG Contracts (NI) Ltd2005
- Moyola Construction Limited2021
- MT Building and Construction Services Ltd2020
- Mubm Contracts Ltd2017
All building contractors in Magherafelt · All trades in Magherafelt · Builders across the UK
Frequently asked questions
When are Duffin Construction Services Ltd's accounts due?
Duffin Construction Services Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Duffin Construction Services Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Duffin Construction Services Ltd still trading?
Duffin Construction Services Ltd 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 Duffin Construction Services Ltd do?
Duffin Construction Services Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is Duffin Construction Services Ltd?
Duffin Construction Services Ltd was incorporated on 3 May 2019, 7 years ago.
What is the penalty if Duffin Construction Services 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 Duffin Construction Services Ltd 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.