- Company number
- 05727424
- Incorporated
- 2 Mar 200620 years trading
- Registered office
- 16 Heronsgate Trading Estate, Paycocke Road, Basildon, Essex, SS14 3EU
- Nature of business
- Construction of commercial buildings
LSJ Engineering Ltd is a 20-year-old private limited company registered in Basildon, company number 05727424, one of 303 building contractors in Basildon. 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 down £144K (-44.5%) on the year before, to £180K.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- Current assets of £442K against £256K owed within a year: 1.7 times cover.
- 13 employees on average, up from 12 the year before.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £180K | £31K | £442K | £256K | 13 |
| 31 Mar 2024 | £324K | £77K | £419K | £150K | 12 |
| 31 Mar 2023 | £321K | £131K | £407K | £111K | 11 |
| 31 Mar 2022 | £353K | £151K | £525K | £196K | 9 |
| 31 Mar 2021 | £180K | £180K | £252K | £101K | 9 |
| 31 Mar 2020 | £309K | £128K | £347K | £112K | 9 |
| 31 Mar 2019 | £395K | £99K | £630K | £307K | 9 |
| 31 Mar 2018 | £241K | £40K | £468K | £258K | 10 |
Where LSJ Engineering Ltd is registered
The registered office is in Basildon (SS14), in the Basildon local authority area, East of England. Show SS14 3EU on a map.
Other trade companies in SS14
- Texaco Essex LtdCleaning companies
- Premier Build Services LimitedFinishing trades
- Justrepairs & Paint LtdMechanics and garages
- Edyghost. LtdBuilders
- MSB Colchester Electrical LimitedElectricians
- Climate One LtdPlumbers and heating engineers
- Elsm LtdElectricians
- Redmarsh Property Maintenance LimitedCleaning companies
Also registered at this address
23 other companies use the same registered office as LSJ Engineering Ltd.
- Alert Pest Control Environmental LimitedCleaning companies
- Asm Truck Diagnostics LimitedMachinery repair and installation
- Beon Solutions LtdElectricians
- BHL Building & Construction LtdProperty developers
- Bibby Bespoke Interiors LimitedFinishing trades
- Big Stuff Designs LimitedFinishing trades
- Clock Tower Property Development LimitedProperty developers
- Crawfords Contract Services LimitedCleaning companies
- Detailed Building Services LtdFinishing trades
- Envision Scope LimitedProperty developers
- Heal Cleaning Group LimitedCleaning companies
- Heritage Homes Roofing & Building Contractors LtdRoofers
- Hobbs Electrical Installations LtdElectricians
- Imperial Ceramics LimitedFinishing trades
- Inox Construction LtdFinishing trades
- Prism Ceramics LimitedFinishing trades
- Speedrite International Ltd.Machinery repair and installation
- TFM (South East) LtdCleaning companies
- Timmins Property Services LimitedFinishing trades
- Twelve Jewels LimitedFinishing trades
- Tynedale Properties LimitedProperty developers
- Waters Edge Construction LimitedBuilders
- Watersedge Building Developments LimitedBuilders
What happens if LSJ Engineering 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
- 05727424
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 March 2006 (20 years ago)
- Registered office
- 16 Heronsgate Trading Estate, Paycocke Road, Basildon, Essex, SS14 3EU
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 6 December 2025
- Charges (mortgages)
- 2 outstanding of 2 registered
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Basildon
Other active building contractors registered in Basildon.
- Lukin Family Ltd2025
- Lullaway Construction Ltd2019
- M G F Interiors Limited2015
- M S Crossley Renovations Ltd2021
- M.I.T.Construction Ltd2026
- Mads Solutions Ltd2024
- Mas Mechanical Limited2006
- Mastaly Limited2019
All building contractors in Basildon · All trades in Basildon · Builders across the UK
Frequently asked questions
When are LSJ Engineering Ltd's accounts due?
LSJ Engineering 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 LSJ Engineering 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 LSJ Engineering Ltd still trading?
LSJ Engineering 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 LSJ Engineering Ltd do?
LSJ Engineering Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is LSJ Engineering Ltd?
LSJ Engineering Ltd was incorporated on 2 March 2006, 20 years ago.
What is the penalty if LSJ Engineering 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 LSJ Engineering 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.