- Companies
- Specialist contractors
- London
- Carlton Services Maintenance Ltd
Carlton Services Maintenance Ltd
- Company number
- 10937595
- Incorporated
- 30 Aug 20179 years trading
- Registered office
- 3, ST James Housse, 13 Kensington Square, London, W8 5HD
- Nature of business
- Other specialised construction activities n.e.c.
Carlton Services Maintenance Ltd is a 9-year-old private limited company registered in London, company number 10937595, one of 4,318 specialist construction companies in London.
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 £1,762 (-31.9%) on the year before, to £3,765.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £39K against £3,368 owed within a year: more than 10 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 7 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2024 | £3,765 | £39K | £3,368 | 1 | |
| 31 Aug 2023 | £5,527 | £45K | £4,115 | 0 | |
| 31 Aug 2022 | £5,696 | £54K | £49K | 1 | |
| 31 Aug 2021 | £21K | £81K | £9,370 | 1 | |
| 31 Aug 2020 | £9,523 | £65K | £5,539 | 0 | |
| 31 Aug 2019 | £1,412 | £4,578 | £3,266 | 1 | |
| 31 Aug 2018 | £376 | £3,316 | £3,040 |
Where Carlton Services Maintenance Ltd is registered
The registered office is in London (W8), in the Kensington and Chelsea local authority area, London. Show W8 5HD on a map.
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What happens if Carlton Services 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 31 May 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2026 to 30 Jun 2026 | £150 |
| 1 to 3 months late | 1 Jul 2026 to 31 Aug 2026 | £375 |
| 3 to 6 months late | 1 Sep 2026 to 30 Nov 2026 | £750 |
| More than 6 months late | From 1 Dec 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2026 | £200 |
| 3 months late | 30 Nov 2026 | another £200 |
| 6 months late | 28 Feb 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2027 | 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
- 10937595
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 August 2017 (9 years ago)
- Registered office
- 3, ST James Housse, 13 Kensington Square, London, W8 5HD
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2024
- Last confirmation statement
- 29 August 2026
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.
- Carson Eccles Construction Ltd2025
- Carter Stanton Projects Ltd2026
- Cas Studio Ltd2022
- Casa Design Group Limited2022
- Casabase Maintenance Ltd2026
- Cascade Stone Ltd2025
- Casper Rope Access Ltd2019
- Caspian Construction Management Limited2022
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Carlton Services Maintenance Ltd's accounts due?
The register showed Carlton Services Maintenance Ltd's accounts as due on 31 May 2026. That date has passed; the Companies House register shows whether they have been filed since.
When is Carlton Services Maintenance Ltd's CT600 due?
The CT600 for the period to 31 August 2025 is due at HMRC by 31 August 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2026.
Is Carlton Services Maintenance Ltd still trading?
Carlton Services 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 Carlton Services Maintenance Ltd do?
Carlton Services Maintenance Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Carlton Services Maintenance Ltd?
Carlton Services Maintenance Ltd was incorporated on 30 August 2017, 9 years ago.
What is the penalty if Carlton Services 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 Carlton Services 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.