- Company number
- 11666112
- Incorporated
- 7 Nov 20187 years trading
- Registered office
- C/O Goldwyns London LLP, No.1 Royal Exchange, London, EC3V 3DG
- Nature of business
- Construction of domestic buildings; Management of real estate on a fee or contract basis
Mi Maintenance Limited is a 7-year-old private limited company registered in London, company number 11666112, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 November 2026, and its first CT600 is due at HMRC on 30 November 2026.
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 up £47K on the year before, to £45K.
- Net assets rose in 1 of 8 year-on-year comparisons on record.
- Current assets of £93K against £48K owed within a year: 1.9 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 9 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £45K | £14K | £93K | £48K | 0 |
| 30 Nov 2024 | -£1,897 | £4,993 | £49K | £51K | 1 |
| 30 Nov 2023 | £100 | £100 | |||
| 1 Dec 2022 | £100 | £100 | |||
| 30 Nov 2022 | £100 | £100 | |||
| 1 Dec 2021 | £100 | £100 | |||
| 30 Nov 2021 | £100 | £100 | |||
| 30 Nov 2020 | £100 | £100 | |||
| 30 Nov 2019 | £100 | £100 |
Where Mi Maintenance Limited is registered
The registered office is in London (EC3V), in the City of London local authority area, London. Show EC3V 3DG on a map.
Other trade companies in EC3V
- Rekondition LtdRepair services
- Revora Cleaning & Hygiene Solutions LtdCleaning companies
- Kingston Leeds LimitedProperty developers
- Riverside Cleaning Group LtdCleaning companies
- Milman Services LtdInstallers
- F and F Electrical Services LtdElectricians
- Lilyame LimitedProperty developers
- Truewatt LtdElectricians
Also registered at this address
17 other companies use the same registered office as Mi Maintenance Limited.
- A D Homes London LtdSpecialist contractors
- Ashbourne Capital Partners LimitedProperty developers
- Direct Property Management LimitedProperty developers
- Eedn LtdProperty developers
- Omniform LimitedBuilders
- PHL Bicester LimitedProperty developers
- PHL Broadstairs LimitedProperty developers
- PHL Burton LimitedProperty developers
- PHL Camborne LimitedProperty developers
- PHL Crawley LimitedProperty developers
- PHL Exeter LimitedProperty developers
- PHL Leeds LimitedProperty developers
- PHL Nottingham LimitedProperty developers
- PHL Shrewsbury LimitedProperty developers
- PHL Telford LimitedProperty developers
- Sustainable Construction Technologies LimitedSpecialist contractors
- Thermodul System UK LimitedSpecialist contractors
What happens if Mi Maintenance 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 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 11666112
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 November 2018 (7 years ago)
- Registered office
- C/O Goldwyns London LLP, No.1 Royal Exchange, London, EC3V 3DG
- Nature of business
- Construction of domestic buildings (SIC 41202)
Management of real estate on a fee or contract basis (SIC 68320) - Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2024
- Last confirmation statement
- 3 November 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 London
Other active building contractors registered in London.
- Mi Prestige Interiors Ltd2018
- Mia Construction Ltd2023
- Miaa Construction Ltd2026
- Miasol Construction Limited2024
- Mib Property Services Ltd2021
- Mibo Construction Ltd2020
- Mic Electrical Solutions Ltd2016
- Mica Construction Ltd2017
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Mi Maintenance Limited's accounts due?
Mi Maintenance Limited's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is Mi Maintenance 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 30 November 2025, due by 30 November 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mi Maintenance Limited still trading?
Mi Maintenance 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 Mi Maintenance Limited do?
Mi Maintenance Limited is registered under Construction of domestic buildings (SIC 41202); Management of real estate on a fee or contract basis (SIC 68320).
How old is Mi Maintenance Limited?
Mi Maintenance Limited was incorporated on 7 November 2018, 7 years ago.
What is the penalty if Mi Maintenance 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 Mi Maintenance 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.