- Companies
- Electricians
- London
- Sandstone Construction Ltd
Sandstone Construction Ltd
- Company number
- 11498003
- Incorporated
- 2 Aug 20188 years trading
- Registered office
- 18 Chartwell Close, London, SE9 3UQ
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Painting; Other building completion and finishing
Sandstone Construction Ltd is a 8-year-old private limited company registered in London, company number 11498003, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £12K on the year before, to £12K.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £24K against £17K owed within a year: 1.4 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £12K | £22K | £24K | £17K | 2 |
| 31 Aug 2024 | £17 | £4,129 | £3,637 | £9,412 | 2 |
| 31 Aug 2023 | £251 | £10K | £13K | £19K | 2 |
| 31 Aug 2022 | £341 | £1,881 | £11K | £1,600 | 3 |
| 31 Aug 2021 | £275 | £26K | £10K | 2 | |
| 31 Aug 2020 | £8,307 | £17K | £8,694 | 1 | |
| 31 Aug 2019 | £14K | £26K | £12K |
Where Sandstone Construction Ltd is registered
The registered office is in London (SE9), in the Bexley local authority area, London. Show SE9 3UQ on a map.
Other trade companies in SE9
- Valkor LtdBuilders
- M.A Developments (Ramsgate) LimitedProperty developers
- Sanchez Dec LtdPainters and decorators
- Yoi As LtdBuilders
- Interfix LtdSpecialist contractors
- South East London Locksmith LimitedSpecialist contractors
- S&O Maintenance LimitedInstallers
- Colvin Construction LimitedBuilders
What happens if Sandstone Construction 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 11498003
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 August 2018 (8 years ago)
- Registered office
- 18 Chartwell Close, London, SE9 3UQ
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Painting (SIC 43341)
Other building completion and finishing (SIC 43390) - Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 23 July 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in London
Other active electrical contractors registered in London.
- Sanford Electrical Services Ltd2026
- Santana Electrical Services Ltd2017
- Santes Engineering Limited2026
- Saroya Electrics Ltd2023
- Sas Power Solutions Limited2025
- Saul Harris Limited2016
- Say Electrical Limited2024
- SBC Electricians Ltd2016
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Sandstone Construction Ltd's accounts due?
Sandstone Construction Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Sandstone Construction Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Sandstone Construction Ltd still trading?
Sandstone Construction 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 Sandstone Construction Ltd do?
Sandstone Construction Ltd is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Painting (SIC 43341); Other building completion and finishing (SIC 43390).
How old is Sandstone Construction Ltd?
Sandstone Construction Ltd was incorporated on 2 August 2018, 8 years ago.
What is the penalty if Sandstone Construction 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 Sandstone Construction 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.