1. Companies
  2. Builders
  3. Loughton
  4. Csi: Maintenance Ltd

Csi: Maintenance Ltd

ActiveMicro-entity accountsBuildersLoughton
Company number
08810005
Incorporated
11 Dec 201312 years trading
Registered office
31 Hanson Drive, Loughton, Essex, IG10 2EF
Nature of business
Construction of domestic buildings; Other building and industrial cleaning activities
Accounts due in
353 days
30 Sep 2027
Net assets
£35K▲
+38.3% on the year before
Employees
0
Average during the year
From the Companies House register, 1 Oct 2026

Csi: Maintenance Ltd is a 12-year-old private limited company registered in Loughton, company number 08810005, one of 167 building contractors in Loughton. 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.

Accounts due
30 Sep 2027
in 353 days
For the period to 31 Dec 2026
CT600 due
31 Dec 2027
in 445 days
Period 1 Jan 2026 to 31 Dec 2026
Corporation tax payment
1 Oct 2027
in 354 days
9 months and 1 day after the period end
Confirmation statement
25 Dec 2026
in 74 days
Last made up to 11 Dec 2025

Is this your company?

File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.

File for Csi: Maintenance Ltd

Or get a reminder before each deadline

Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.

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 up £9,792 (+38.3%) on the year before, to £35K.
  • Net assets rose in 6 of 9 year-on-year comparisons on record.
  • Current assets of £28K against £58K owed within a year: 0.5 times cover.
  • No employees reported for the latest year (directors are often not counted as employees).
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£20K31 December 2016: net assets £178£178201631 December 2017: net assets £131£131201731 December 2018: net assets £117£117201831 December 2019: net assets £7,064£7,064201931 December 2020: net assets £13K£13K202031 December 2021: net assets £17K£17K202131 December 2022: net assets £9,760£9,760202231 December 2023: net assets £21K£21K202331 December 2024: net assets £26K£26K202431 December 2025: net assets £35K£35K2025
Net assets at each year end, 2016 to 2025£0£20K31 December 2016: net assets £178£178'1631 December 2017: net assets £131£131'1731 December 2018: net assets £117£117'1831 December 2019: net assets £7,064£7,064'1931 December 2020: net assets £13K£13K'2031 December 2021: net assets £17K£17K'2131 December 2022: net assets £9,760£9,760'2231 December 2023: net assets £21K£21K'2331 December 2024: net assets £26K£26K'2431 December 2025: net assets £35K£35K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2025£35K£28K£58K0
31 Dec 2024£26K£20K£39K0
31 Dec 2023£21K£9,906£25K0
31 Dec 2022£9,760£17K£17K0
31 Dec 2021£17K£22K£27K0
31 Dec 2020£13K£21K£17K0
31 Dec 2019£7,064£16K£24K0
31 Dec 2018£117£12K£13K
31 Dec 2017£131£17K£18K
31 Dec 2016£178£4,642£6,549

Where Csi: Maintenance Ltd is registered

Csi: Maintenance Ltd's registered office on a map of the UK

The registered office is in Loughton (IG10), in the Epping Forest local authority area, East of England. Show IG10 2EF on a map.

Other trade companies in IG10

What happens if Csi: Maintenance 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 30 September 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Oct 2027 to 31 Oct 2027£150
1 to 3 months late1 Nov 2027 to 31 Dec 2027£375
3 to 6 months late1 Jan 2028 to 31 Mar 2028£750
More than 6 months lateFrom 1 Apr 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Jan 2028£200
3 months late31 Mar 2028another £200
6 months late30 Jun 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 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
08810005
Status
Active
Company type
Private limited company
Incorporated
11 December 2013 (12 years ago)
Registered office
31 Hanson Drive, Loughton, Essex, IG10 2EF
Nature of business
Construction of domestic buildings (SIC 41202)
Other building and industrial cleaning activities (SIC 81229)
Year end
31 December (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 December 2025
Last confirmation statement
11 December 2025

Filing notes for building contractors

Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.

Similar companies in Loughton

Other active building contractors registered in Loughton.

All building contractors in Loughton · All trades in Loughton · Builders across the UK

Frequently asked questions

When are Csi: Maintenance Ltd's accounts due?

Csi: Maintenance Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.

When is Csi: Maintenance Ltd'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 Csi: Maintenance Ltd still trading?

Csi: Maintenance 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 Csi: Maintenance Ltd do?

Csi: Maintenance Ltd is registered under Construction of domestic buildings (SIC 41202); Other building and industrial cleaning activities (SIC 81229).

How old is Csi: Maintenance Ltd?

Csi: Maintenance Ltd was incorporated on 11 December 2013, 12 years ago.

What is the penalty if Csi: Maintenance 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 Csi: Maintenance Ltd 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.

File accounts + CT600File now£49Let's talk