- Companies
- Machinery repair and installation
- Portsmouth
- Duchy Sky Limited
Duchy Sky Limited
- Company number
- 15432487
- Incorporated
- 22 Jan 20242 years trading
- Registered office
- 8 Spur Road, Cosham, Portsmouth, PO6 3EB
- Nature of business
- Repair and maintenance of aircraft and spacecraft
Duchy Sky Limited is a 2-year-old private limited company registered in Portsmouth, company number 15432487, one of 55 machinery repair and installation companies in Portsmouth. Its next accounts are due at Companies House on 31 January 2027, and its first CT600 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 January 2025, as filed at Companies House.
Where Duchy Sky Limited is registered
The registered office is in Portsmouth (PO6), in the Portsmouth local authority area, South East. Show PO6 3EB on a map.
Other trade companies in PO6
- Bellagio Partners LtdBuilders
- Cpenw LtdMachinery repair and installation
- Marla Brickwork & Construction LtdProperty developers
- Miracles in Metal LtdMechanics and garages
- FH Fire & Electrical LtdElectricians
- Thomcore LimitedSpecialist contractors
- JMS Southern LtdElectricians
- The Motum Group LtdSpecialist contractors
Shared registered office
142 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 Duchy Sky 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 15432487
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 January 2024 (2 years ago)
- Registered office
- 8 Spur Road, Cosham, Portsmouth, PO6 3EB
- Nature of business
- Repair and maintenance of aircraft and spacecraft (SIC 33160)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 25 November 2025
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 Portsmouth
Other active machinery repair and installation companies registered in Portsmouth.
- Express Turbos Limited2012
- Gentec Services Ltd2007
- Goodacre Boat Repairs and Refits Ltd2006
- HB Hydraulics Limited2019
- I.M.E Group Limited2017
- I.M.E Repair Services Limited2006
- JDM Spec Ltd2014
- JWS Marine Services Limited2004
All machinery repair and installation companies in Portsmouth · All trades in Portsmouth · Machinery repair and installation across the UK
Frequently asked questions
When are Duchy Sky Limited's accounts due?
Duchy Sky Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Duchy Sky 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 31 January 2026, due by 31 January 2027, and one for the period to 30 April 2026, due by 30 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Duchy Sky Limited still trading?
Duchy Sky 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 Duchy Sky Limited do?
Duchy Sky Limited is registered under Repair and maintenance of aircraft and spacecraft (SIC 33160).
How old is Duchy Sky Limited?
Duchy Sky Limited was incorporated on 22 January 2024, 2 years ago.
What is the penalty if Duchy Sky 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 Duchy Sky 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.