- Company number
- 16993577
- Incorporated
- 28 Jan 2026
- Registered office
- 35 Lower Hall Lane, London, E4 8JG
- Nature of business
- Construction of domestic buildings; Other building completion and finishing
Ai Building Maintenance Ltd is a newly incorporated private limited company registered in London, company number 16993577, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 28 October 2027, and its first CT600 is due at HMRC on 27 January 2028.
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.
Is this your company?
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Where Ai Building Maintenance Ltd is registered
The registered office is in London (E4), in the Waltham Forest local authority area, London. Show E4 8JG on a map.
Other trade companies in E4
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- Siyar Properties LtdBuilders
- TM Pro Building 1 LtdBuilders
- Primebr LtdMotor traders
- We&Build LtdSpecialist contractors
- Chingford Motor Group LtdMotor traders
- Property Maintenance Surveyors LtdCleaning companies
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Also registered at this address
1 other company uses the same registered office as Ai Building Maintenance Ltd.
- Toozis LimitedMachinery repair and installation
What happens if Ai Building 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 28 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Oct 2027 to 28 Nov 2027 | £150 |
| 1 to 3 months late | 29 Nov 2027 to 28 Jan 2028 | £375 |
| 3 to 6 months late | 29 Jan 2028 to 28 Apr 2028 | £750 |
| More than 6 months late | From 29 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 16993577
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 January 2026
- Registered office
- 35 Lower Hall Lane, London, E4 8JG
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- Ai Develop Construct Ltd2025
- Ai Industrial Energy Ltd2026
- Ai Prestige Multi Traders Limited2025
- Aib Construction Ltd2026
- Aib Construction Management Ltd2025
- Aib Contractors Ltd2013
- Aidcontractors Ltd2025
- Ail Construction Limited2023
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Ai Building Maintenance Ltd's accounts due?
Ai Building Maintenance Ltd's next accounts are due at Companies House by 28 October 2027 (in 380 days), covering the period to 31 January 2027.
When is Ai Building Maintenance 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 27 January 2027, due by 27 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ai Building Maintenance Ltd still trading?
Ai Building 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 Ai Building Maintenance Ltd do?
Ai Building Maintenance Ltd is registered under Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is Ai Building Maintenance Ltd?
Ai Building Maintenance Ltd was incorporated on 28 January 2026, less than a year ago.
What is the penalty if Ai Building 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 Ai Building Maintenance 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.