- Companies
- Specialist contractors
- London
- Advanced Maintenance London Ltd
Advanced Maintenance London Ltd
- Company number
- 13693190
- Incorporated
- 20 Oct 20214 years trading
- Registered office
- 35 Grafton Way, London, W1T 5DB
- Nature of business
- Other specialised construction activities n.e.c.
Advanced Maintenance London Ltd is a 4-year-old private limited company registered in London, company number 13693190, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
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 down £9,435 (-74.8%) on the year before, to £3,172.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £14K against £13K owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £3,172 | £1,550 | £14K | £13K | 0 |
| 31 Oct 2024 | £13K | £18K | £46K | £35K | 1 |
| 31 Oct 2023 | £12K | £43K | £43K | £33K | 1 |
| 31 Oct 2022 | £8,305 | £28K | £29K | £23K | 1 |
Where Advanced Maintenance London Ltd is registered
The registered office is in London (W1T), in the Camden local authority area, London. Show W1T 5DB on a map.
Other trade companies in W1T
- Preschools Cleaning Company LtdCleaning companies
- Northheat Plumbing & Heating LtdPlumbers and heating engineers
- Leuk Lift Engineering UK LtdMachinery repair and installation
- Az Maintenance Services LimitedFinishing trades
- Braintree Property Service LtdBuilders
- Nona Construction & Retrofit LtdBuilders
- Denvav LimitedBuilders
- Marshall Roofing Services LtdRoofers
Shared registered office
73 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 Advanced Maintenance London 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 13693190
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 October 2021 (4 years ago)
- Registered office
- 35 Grafton Way, London, W1T 5DB
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 19 October 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Advanced Property Maintenance Limited2014
- Adventure Playground Engineers Ltd2009
- Adventure Rigging Ltd2026
- Adx Developments Ltd2025
- Ady Ifrosa Ltd2024
- Ae Building and Engineering Ltd2020
- Aedis Construction Group Ltd2025
- Aesthetic Touches Construction Ltd2024
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Advanced Maintenance London Ltd's accounts due?
Advanced Maintenance London Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Advanced Maintenance London Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Advanced Maintenance London Ltd still trading?
Advanced Maintenance London 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 Advanced Maintenance London Ltd do?
Advanced Maintenance London Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Advanced Maintenance London Ltd?
Advanced Maintenance London Ltd was incorporated on 20 October 2021, 4 years ago.
What is the penalty if Advanced Maintenance London 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 Advanced Maintenance London 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.