- Companies
- Machinery repair and installation
- London
- Keel & Harbour Ltd
Keel & Harbour Ltd
- Company number
- 17486735
- Incorporated
- 28 Sep 2026
- Registered office
- 30 Grantbridge Street, London, N1 8JN
- Nature of business
- Repair and maintenance of ships and boats; Service activities incidental to water transportation; Specialised cleaning services; Other cleaning services
Keel & Harbour Ltd is a newly incorporated private limited company registered in London, company number 17486735, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 28 June 2028, and its first CT600 is due at HMRC on 27 September 2028.
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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Where Keel & Harbour Ltd is registered
The registered office is in London (N1), in the Islington local authority area, London. Show N1 8JN on a map.
Other trade companies in N1
- Tagwise LtdSpecialist contractors
- Sphere Aviation Solutions UK LtdMachinery repair and installation
- Get IT Done Builders LtdJoiners and carpenters
- Evolution Products LimitedMotor traders
- Fleetstone Trading LtdMotor traders
- Kenneth Brady LtdElectricians
- UK Import Export LtdBuilders
- Magic Door Services LimitedMachinery repair and installation
What happens if Keel & Harbour 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 28 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Jun 2028 to 28 Jul 2028 | £150 |
| 1 to 3 months late | 29 Jul 2028 to 28 Sep 2028 | £375 |
| 3 to 6 months late | 29 Sep 2028 to 28 Dec 2028 | £750 |
| More than 6 months late | From 29 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 17486735
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 September 2026
- Registered office
- 30 Grantbridge Street, London, N1 8JN
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
Service activities incidental to water transportation (SIC 52220)
Specialised cleaning services (SIC 81222)
Other cleaning services (SIC 81299) - Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in London
Other active machinery repair and installation companies registered in London.
- Keep U Going 365 Ltd2022
- Keepfly Ltd2026
- Keles Repair Services Ltd2021
- Kengold Enterprises Limited2005
- Kensal Rise Plumbers Ltd2013
- Kent Dry Risers Ltd2026
- Kentco Automation Ltd2021
- Kept Cold Ltd2022
All machinery repair and installation companies in London · All trades in London · Machinery repair and installation across the UK
Frequently asked questions
When are Keel & Harbour Ltd's accounts due?
Keel & Harbour Ltd's next accounts are due at Companies House by 28 June 2028 (in 624 days), covering the period to 30 September 2027.
When is Keel & Harbour Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 27 September 2027, due by 27 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Keel & Harbour Ltd still trading?
Keel & Harbour 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 Keel & Harbour Ltd do?
Keel & Harbour Ltd is registered under Repair and maintenance of ships and boats (SIC 33150); Service activities incidental to water transportation (SIC 52220); Specialised cleaning services (SIC 81222); Other cleaning services (SIC 81299).
How old is Keel & Harbour Ltd?
Keel & Harbour Ltd was incorporated on 28 September 2026, less than a year ago.
What is the penalty if Keel & Harbour 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 Keel & Harbour 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.