- Companies
- Installers
- London
- Clockwork Maintenance Limited
Clockwork Maintenance Limited
- Company number
- 16617613
- Incorporated
- 30 Jul 20251 year trading
- Registered office
- 291 Green Lanes, London, Greater London, N13 4XS
- Nature of business
- Other construction installation
Clockwork Maintenance Limited is a 1-year-old private limited company registered in London, company number 16617613, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 30 April 2027, and its first CT600 is due at HMRC on 29 July 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Who runs and owns Clockwork Maintenance Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| G*** T*** | Director | Jul 2025 |
| R*** T*** | Director | Feb 2026 |
Person with significant control
Where Clockwork Maintenance Limited is registered
The registered office is in London (N13), in the Enfield local authority area, London. Show N13 4XS on a map.
Other trade companies in N13
- GKK Contractors LtdBuilders
- Baran MOT LimitedMechanics and garages
- Vick & Victor - Painting & Decorating LtdPainters and decorators
- Meti Flow Solutions LtdBuilders
- XP Plastering & Rendering LtdBuilders
- MD Crafted LtdSpecialist contractors
- Skilled Trades UK LtdPainters and decorators
- Danni Plumbing LtdPlumbers and heating engineers
Shared registered office
30 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Clockwork Maintenance 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16617613
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 July 2025 (1 year ago)
- Registered office
- 291 Green Lanes, London, Greater London, N13 4XS
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 27 July 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- CMH UK Services Ltd2023
- CMJT Limited2026
- CNK Scaffolding Ltd2024
- CNR Construction Services Limited2008
- CNR Lift Ltd2026
- Coastalprime Ltd2013
- Code Weld Fabrication Ltd2023
- Coins Limited2026
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Clockwork Maintenance Limited's accounts due?
Clockwork Maintenance Limited's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is Clockwork Maintenance Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 29 July 2026, due by 29 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Clockwork Maintenance Limited still trading?
Clockwork Maintenance 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 Clockwork Maintenance Limited do?
Clockwork Maintenance Limited is registered under Other construction installation (SIC 43290).
How old is Clockwork Maintenance Limited?
Clockwork Maintenance Limited was incorporated on 30 July 2025, 1 year ago.
Who runs Clockwork Maintenance Limited?
Clockwork Maintenance Limited has 2 active directors, the longest-serving appointed in Jul 2025. Their names and service addresses are on the Companies House register.
Who owns Clockwork Maintenance Limited?
One person or company has significant control of Clockwork Maintenance Limited: an individual (owns 75% or more of the shares).
What is the penalty if Clockwork Maintenance 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 Clockwork Maintenance 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.