- Companies
- Installers
- London
- Marble Lab Ltd
Marble Lab Ltd
- Company number
- 10534302
- Incorporated
- 21 Dec 20169 years trading
- Registered office
- 109A Allfarthing Lane, London, SW18 2AU
- Nature of business
- Other construction installation
Marble Lab Ltd is a 9-year-old private limited company registered in London, company number 10534302, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 up £621 (+1.1%) on the year before, to £58K.
- Net assets rose in 6 of 8 year-on-year comparisons on record.
- Current assets of £98K against £47K owed within a year: 2.1 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £58K | £98K | £47K | 2 | |
| 31 Mar 2024 | £57K | £98K | £49K | 1 | |
| 31 Mar 2023 | £51K | £89K | £49K | 1 | |
| 31 Mar 2022 | £44K | £65K | £32K | 2 | |
| 31 Mar 2021 | £70K | £100K | £45K | 2 | |
| 31 Mar 2020 | £83K | £118K | £56K | 1 | |
| 31 Mar 2019 | £48K | £88K | £41K | ||
| 31 Mar 2018 | £44K | £51K | £73K | £30K | |
| 31 Mar 2017 | £25K | £17K | £35K | £9,532 |
Where Marble Lab Ltd is registered
The registered office is in London (SW18), in the Wandsworth local authority area, London. Show SW18 2AU on a map.
Other trade companies in SW18
- Altius 24CHT LimitedProperty developers
- Nexlink Technologies LtdElectricians
- Straightedge Builders LtdProperty developers
- Parsons Green Re Design & Build LimitedProperty developers
- Home Appliances Repair LimitedRepair services
- 34 & 34A Lambrook Terrace Freehold LtdProperty developers
- 30 Thorndean LtdProperty developers
- Fircroft Group LimitedProperty developers
What happens if Marble Lab 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10534302
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 December 2016 (9 years ago)
- Registered office
- 109A Allfarthing Lane, London, SW18 2AU
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 19 December 2025
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.
- Marco Bardhi Construction Limited2013
- Marentin Solutions Limited2026
- Margo Construction Ltd2015
- Mario and Daughters Ltd2018
- Marl Construction Limited2022
- Marlin Kitchens Ltd2023
- Marsden Property Solutions Ltd2025
- Martin Buendia Ltd2025
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Marble Lab Ltd's accounts due?
Marble Lab Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Marble Lab Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Marble Lab Ltd still trading?
Marble Lab 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 Marble Lab Ltd do?
Marble Lab Ltd is registered under Other construction installation (SIC 43290).
How old is Marble Lab Ltd?
Marble Lab Ltd was incorporated on 21 December 2016, 9 years ago.
What is the penalty if Marble Lab 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 Marble Lab 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.