- Companies
- Machinery repair and installation
- Croydon
- Adec Marine Limited
Adec Marine Limited
- Company number
- 01859493
- Incorporated
- 30 Oct 198441 years trading
- Registered office
- 4 Masons Avenue, Croydon, Surrey, CR0 9XS
- Nature of business
- Repair and maintenance of ships and boats
Adec Marine Limited is a 41-year-old private limited company registered in Croydon, company number 01859493, one of 68 machinery repair and installation companies in Croydon. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 down £39K (-14.5%) on the year before, to £233K.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £540K against £308K owed within a year: 1.7 times cover.
- 6 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £233K | £307K | £540K | £308K | 6 |
| 31 Dec 2024 | £272K | £315K | £583K | £315K | 6 |
| 31 Dec 2023 | £292K | £261K | £515K | £230K | 6 |
| 31 Dec 2022 | £304K | £283K | £570K | £266K | 6 |
| 31 Dec 2021 | £298K | £268K | £587K | £301K | 6 |
| 31 Dec 2020 | £289K | £252K | £507K | £233K | 6 |
| 31 Dec 2019 | £168K | £155K | £545K | £379K | 9 |
| 31 Dec 2018 | £114K | £202K | £391K | £280K | |
| 31 Dec 2017 | £15K | £189K | £433K | £423K | |
| 31 Dec 2016 | £168K |
Where Adec Marine Limited is registered
The registered office is in Croydon (CR0), in the Croydon local authority area, London. Show CR0 9XS on a map.
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- Premier Kitchen Installations LimitedJoiners and carpenters
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What happens if Adec Marine 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 01859493
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 October 1984 (41 years ago)
- Registered office
- 4 Masons Avenue, Croydon, Surrey, CR0 9XS
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 14 April 2026
- Charges (mortgages)
- 0 outstanding of 3 registered
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 Croydon
Other active machinery repair and installation companies registered in Croydon.
- Aerotech International UK Ltd2025
- Ap Motors Ealing Limited2025
- Aura Air Conditioning & Heating Ltd2008
- Awr London Limited2012
- BL. Engineering Services Ltd2018
- Blue Wolf Ltd2015
- Camcool Limited2012
- Caterfix Pro Limited2025
All machinery repair and installation companies in Croydon · All trades in Croydon · Machinery repair and installation across the UK
Frequently asked questions
When are Adec Marine Limited's accounts due?
Adec Marine Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Adec Marine Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Adec Marine Limited still trading?
Adec Marine 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 Adec Marine Limited do?
Adec Marine Limited is registered under Repair and maintenance of ships and boats (SIC 33150).
How old is Adec Marine Limited?
Adec Marine Limited was incorporated on 30 October 1984, 41 years ago.
What is the penalty if Adec Marine 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 Adec Marine 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.