- Companies
- Installers
- London
- Mainta Ltd
Mainta Ltd
- Company number
- 16829650
- Incorporated
- 3 Nov 2025
- Registered office
- 2A Connaught Avenue, London, E4 7AA
- Nature of business
- Other construction installation; Other building completion and finishing; Management of real estate on a fee or contract basis; Combined facilities support activities
Mainta Ltd is a newly incorporated private limited company registered in London, company number 16829650, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 3 August 2027, and its first CT600 is due at HMRC on 2 November 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Mainta Ltd is registered
The registered office is in London (E4), in the Waltham Forest local authority area, London. Show E4 7AA on a map.
Other trade companies in E4
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- Property Maintenance Surveyors LtdCleaning companies
- M&D Contractors LtdBuilders
Shared registered office
41 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 Mainta 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 3 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Aug 2027 to 3 Sep 2027 | £150 |
| 1 to 3 months late | 4 Sep 2027 to 3 Nov 2027 | £375 |
| 3 to 6 months late | 4 Nov 2027 to 3 Feb 2028 | £750 |
| More than 6 months late | From 4 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16829650
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 November 2025
- Registered office
- 2A Connaught Avenue, London, E4 7AA
- Nature of business
- Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390)
Management of real estate on a fee or contract basis (SIC 68320)
Combined facilities support activities (SIC 81100) - Year end
- 30 November (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Maintain & Manage Ltd2025
- Maintenance and More Group Ltd2022
- Majestic Installations Ltd2020
- Majestic View Limited2021
- Mak Support Services Ltd2020
- Man Guys Construction Limited2022
- Man Power Quality Limited2021
- Manchester Swimming Pool Company Ltd2026
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Mainta Ltd's accounts due?
Mainta Ltd's next accounts are due at Companies House by 3 August 2027 (in 295 days), covering the period to 30 November 2026.
When is Mainta Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 2 November 2026, due by 2 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mainta Ltd still trading?
Mainta 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 Mainta Ltd do?
Mainta Ltd is registered under Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390); Management of real estate on a fee or contract basis (SIC 68320); Combined facilities support activities (SIC 81100).
How old is Mainta Ltd?
Mainta Ltd was incorporated on 3 November 2025, less than a year ago.
What is the penalty if Mainta 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 Mainta Ltd 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.