- Companies
- Plumbers and heating engineers
- Omagh
- CDK Group Ltd
CDK Group Ltd
- Company number
- NI655471
- Incorporated
- 4 Sep 20188 years trading
- Registered office
- 65 Crockanboy Road, Drumlea, Omagh, Co. Tyrone, BT79 7RL
- Nature of business
- Plumbing, heat and air-conditioning installation; Other specialised construction activities n.e.c.
CDK Group Ltd is a 8-year-old private limited company registered in Omagh, company number NI655471, one of 15 plumbing and heating companies in Omagh. 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 up £10K (+140.1%) on the year before, to £18K.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £20K against £11K owed within a year: 1.9 times cover.
- 2 employees on average, up from 0 the year before.
- 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 | £18K | £20K | £11K | 2 | |
| 30 Sep 2024 | £7,447 | £7,633 | £2,616 | 0 | |
| 30 Sep 2023 | £6,894 | £3,679 | £525 | 0 | |
| 30 Sep 2022 | £1,366 | £8,902 | £1,424 | 2 | |
| 30 Sep 2021 | £5,393 | £1,244 | 0 | ||
| 30 Sep 2020 | £1,742 | £2,520 | £900 | 1 | |
| 30 Sep 2019 | £361 | £1,712 | £1,351 | 0 |
Where CDK Group Ltd is registered
The registered office is in Omagh (BT79), in the Fermanagh and Omagh local authority area, Northern Ireland. Show BT79 7RL on a map.
Other trade companies in BT79
- Marcoy LtdProperty developers
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- CTS Repowering LtdInstallers
- C-More Home Improvement LtdBuilders
- Broadleaf Construction Services LtdProperty developers
- Peak Performance Tuning LtdMechanics and garages
- Ec Poultry & Maintenance LtdInstallers
- Galetech Operations UK LtdMachinery repair and installation
What happens if CDK Group 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
- NI655471
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 September 2018 (8 years ago)
- Registered office
- 65 Crockanboy Road, Drumlea, Omagh, Co. Tyrone, BT79 7RL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 3 September 2025
- Previous names
- Ulster Mechanical Services Ltd (until 12 Sep 2018)
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Omagh
Other active plumbing and heating companies registered in Omagh.
- Clar Renewable Energy Limited2015
- CT Plumbing & Heating Limited2016
- Direct Heat (NI) Limited2004
- Gallagher Engineering Ltd2023
- Gallagher HVAC Europe Ltd2024
- Glenhull Plumbing Services Ltd2023
- Ian Short Plumbing & Heating Ltd2006
- O'Brien Mechanical Limited2017
All plumbing and heating companies in Omagh · All trades in Omagh · Plumbers and heating engineers across the UK
Frequently asked questions
When are CDK Group Ltd's accounts due?
CDK Group 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 CDK Group 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 CDK Group Ltd still trading?
CDK Group Ltd is listed as active on the Companies House register (checked 12 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 CDK Group Ltd do?
CDK Group Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other specialised construction activities n.e.c. (SIC 43999).
How old is CDK Group Ltd?
CDK Group Ltd was incorporated on 4 September 2018, 8 years ago.
What is the penalty if CDK Group 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 CDK Group Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.