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  4. Althorne Marine Services (Mechanical) Limited

Althorne Marine Services (Mechanical) Limited

ActiveTotal exemption (full) accountsMachinery repair and installationMaldon
Company number
07291606
Incorporated
22 Jun 201016 years trading
Registered office
C/O Xeinadin South Essex Ltd the Rivendell Centre, White Horse Lane, Maldon, CM9 5QP
Nature of business
Repair of other equipment
Accounts due in
79 days
31 Dec 2026
Net assets
-£24K▼
-75.2% on the year before
Cash at bank
£3,063▼
At 31 Mar 2025
Employees
2
Average during the year
From the Companies House register, 1 Oct 2026

Althorne Marine Services (Mechanical) Limited is a 16-year-old private limited company registered in Maldon, company number 07291606, one of 26 machinery repair and installation companies in Maldon. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Dec 2026
in 79 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 169 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 80 days
9 months and 1 day after the period end
Confirmation statement
6 Jul 2027
in 266 days
Last made up to 22 Jun 2026

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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 £10K (-75.2%) on the year before, to -£24K.
  • Net assets rose in 2 of 9 year-on-year comparisons on record.
  • Current assets of £17K against £43K owed within a year: 0.4 times cover.
  • 2 employees on average during the year.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025-£20K-£10K£031 March 2016: net assets £812£812201631 March 2017: net assets -£4,006-£4,006201731 March 2018: net assets -£4,377-£4,377201831 March 2019: net assets -£781-£781201931 March 2020: net assets -£2,024-£2,024202031 March 2021: net assets -£2,501-£2,501202131 March 2022: net assets -£3,748-£3,748202231 March 2023: net assets -£14K-£14K202331 March 2024: net assets -£14K-£14K202431 March 2025: net assets -£24K-£24K2025
Net assets at each year end, 2016 to 2025-£20K-£10K£031 March 2016: net assets £812£812'1631 March 2017: net assets -£4,006-£4,006'1731 March 2018: net assets -£4,377-£4,377'1831 March 2019: net assets -£781-£781'1931 March 2020: net assets -£2,024-£2,024'2031 March 2021: net assets -£2,501-£2,501'2131 March 2022: net assets -£3,748-£3,748'2231 March 2023: net assets -£14K-£14K'2331 March 2024: net assets -£14K-£14K'2431 March 2025: net assets -£24K-£24K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025-£24K£3,063£17K£43K2
31 Mar 2024-£14K£4,355£10K£26K2
31 Mar 2023-£14K£4,260£19K£36K2
31 Mar 2022-£3,748£2,043£4,722£12K2
31 Mar 2021-£2,501£2,296£5,217£12K2
31 Mar 2020-£2,024£1,630£4,130£12K2
31 Mar 2019-£781£1,262£7,492£16K
31 Mar 2018-£4,377£1,174£12K£27K
31 Mar 2017-£4,006£3,620£15K£26K
31 Mar 2016£812£1,260£7,338

Who runs and owns Althorne Marine Services (Mechanical) Limited

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officers (2)

NameRoleAppointed
J*** R***DirectorJun 2010
S*** R***DirectorJun 2010
1 former officer
NameRoleAppointedLeft
G*** C***DirectorJun 2010Jun 2010

Person with significant control

Individual · since Apr 2017
J*** R***
Owns 75% or more of the shares

Where Althorne Marine Services (Mechanical) Limited is registered

Althorne Marine Services (Mechanical) Limited's registered office on a map of the UK

The registered office is in Maldon (CM9), in the Maldon local authority area, East of England. Show CM9 5QP on a map.

Other trade companies in CM9

Shared registered office

65 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 Althorne Marine Services (Mechanical) 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 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 2027 to 30 Jun 2027£750
More than 6 months lateFrom 1 Jul 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2028another 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
07291606
Status
Active
Company type
Private limited company
Incorporated
22 June 2010 (16 years ago)
Registered office
C/O Xeinadin South Essex Ltd the Rivendell Centre, White Horse Lane, Maldon, CM9 5QP
Nature of business
Repair of other equipment (SIC 33190)
Year end
31 March (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 March 2025
Last confirmation statement
22 June 2026

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 Maldon

Other active machinery repair and installation companies registered in Maldon.

All machinery repair and installation companies in Maldon · All trades in Maldon · Machinery repair and installation across the UK

Frequently asked questions

When are Althorne Marine Services (Mechanical) Limited's accounts due?

Althorne Marine Services (Mechanical) Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.

When is Althorne Marine Services (Mechanical) Limited's CT600 due?

The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.

Is Althorne Marine Services (Mechanical) Limited still trading?

Althorne Marine Services (Mechanical) 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 Althorne Marine Services (Mechanical) Limited do?

Althorne Marine Services (Mechanical) Limited is registered under Repair of other equipment (SIC 33190).

How old is Althorne Marine Services (Mechanical) Limited?

Althorne Marine Services (Mechanical) Limited was incorporated on 22 June 2010, 16 years ago.

Who runs Althorne Marine Services (Mechanical) Limited?

Althorne Marine Services (Mechanical) Limited has 2 active directors, the longest-serving appointed in Jun 2010. Their names and service addresses are on the Companies House register.

Who owns Althorne Marine Services (Mechanical) Limited?

One person or company has significant control of Althorne Marine Services (Mechanical) Limited: an individual (owns 75% or more of the shares).

What is the penalty if Althorne Marine Services (Mechanical) 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 Althorne Marine Services (Mechanical) Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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