- Companies
- Electricians
- Londonderry
- D.Z Commissioning Services Limited
D.Z Commissioning Services Limited
- Company number
- NI726312
- Incorporated
- 12 Feb 20251 year trading
- Registered office
- 1 Summer Meadows View, Londonderry, BT47 6SH
- Nature of business
- Electrical installation
D.Z Commissioning Services Limited is a 1-year-old private limited company registered in Londonderry, company number NI726312, one of 48 electrical contractors in Londonderry. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £21K on the year before, to £23K.
- Current assets of £32K against £10K owed within a year: 3.0 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £23K | £32K | £32K | £10K | 2 |
| 31 Mar 2025 | £1,852 | £4,248 | £4,248 | £2,396 | 1 |
Where D.Z Commissioning Services Limited is registered
The registered office is in Londonderry (BT47), in the Derry City and Strabane local authority area, Northern Ireland. Show BT47 6SH on a map.
Other trade companies in BT47
- RNK Contracts LimitedGroundworks and demolition
- Den Electrical LtdElectricians
- BDK Consulting LimitedProperty developers
- Oakline Engineering LtdInstallers
- Killew Property Services LimitedFacilities management
- PH Autobody LimitedMechanics and garages
- C Doherty Autos LtdMechanics and garages
- CPMH LtdBuilders
What happens if D.Z Commissioning Services 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- NI726312
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 February 2025 (1 year ago)
- Registered office
- 1 Summer Meadows View, Londonderry, BT47 6SH
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 11 February 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Londonderry
Other active electrical contractors registered in Londonderry.
- Den Electrical Ltd2026
- Direct Electrical Services (Ireland) Ltd1998
- DJM Contractors Ltd2019
- Ec DC Electrical Ltd2023
- Emmett Brolly Electrical Limited2025
- Ena Electrics Ltd2024
- Et & T Services Limited2024
- FPM Electrical Ltd2014
All electrical contractors in Londonderry · All trades in Londonderry · Electricians across the UK
Frequently asked questions
When are D.Z Commissioning Services Limited's accounts due?
D.Z Commissioning Services Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is D.Z Commissioning Services Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is D.Z Commissioning Services Limited still trading?
D.Z Commissioning Services 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 D.Z Commissioning Services Limited do?
D.Z Commissioning Services Limited is registered under Electrical installation (SIC 43210).
How old is D.Z Commissioning Services Limited?
D.Z Commissioning Services Limited was incorporated on 12 February 2025, 1 year ago.
What is the penalty if D.Z Commissioning Services 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 D.Z Commissioning Services 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.