- Companies
- Plumbers and heating engineers
- London
- E J Smart Ltd
E J Smart Ltd
- Company number
- 12839843
- Incorporated
- 26 Aug 20206 years trading
- Registered office
- 34 Llanover Road, London, SE18 3SU
- Nature of business
- Plumbing, heat and air-conditioning installation; Combined facilities support activities
E J Smart Ltd is a 6-year-old private limited company registered in London, company number 12839843, one of 2,972 plumbing and heating companies 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 down £217 (-6%) on the year before, to £3,416.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £81K against £86K owed within a year: 0.9 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £3,416 | £31K | £81K | £86K | 2 |
| 31 Aug 2024 | £3,633 | £14K | £9,668 | 1 | |
| 31 Aug 2023 | £6,550 | £15K | £7,060 | 1 | |
| 31 Aug 2022 | £26K | £40K | £13K | 1 | |
| 31 Aug 2021 | £1 | £1 | 0 |
Who runs and owns E J Smart Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| E*** S*** | Director | Aug 2020 |
Person with significant control
Where E J Smart Ltd is registered
The registered office is in London (SE18), in the Greenwich local authority area, London. Show SE18 3SU on a map.
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What happens if E J Smart 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
- 12839843
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 August 2020 (6 years ago)
- Registered office
- 34 Llanover Road, London, SE18 3SU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Combined facilities support activities (SIC 81100) - Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 25 August 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- E Plumb Limited2012
- E&G Restoration Ltd2019
- E.B.T HP Ltd2017
- E14 Property Services Ltd2022
- E6 Heating and Plumbing Services Ltd2020
- E7 Plumbing and Heating Ltd2026
- E9HVAC Ltd2026
- Ea Property Maintenance Ltd2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are E J Smart Ltd's accounts due?
E J Smart 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 E J Smart 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 E J Smart Ltd still trading?
E J Smart 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 E J Smart Ltd do?
E J Smart Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Combined facilities support activities (SIC 81100).
How old is E J Smart Ltd?
E J Smart Ltd was incorporated on 26 August 2020, 6 years ago.
Who runs E J Smart Ltd?
E J Smart Ltd has 1 active director, the longest-serving appointed in Aug 2020. Their names and service addresses are on the Companies House register.
Who owns E J Smart Ltd?
One person or company has significant control of E J Smart Ltd: an individual (owns 75% or more of the shares).
What is the penalty if E J Smart 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 E J Smart 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.