- Companies
- Installers
- Barnet
- NJK Brickwork Limited
NJK Brickwork Limited
- Company number
- 04373237
- Incorporated
- 13 Feb 200224 years trading
- Registered office
- 5 Beauchamp Court, Victors Way, Barnet, London, EN5 5TZ
- Nature of business
- Other construction installation
NJK Brickwork Limited is a 24-year-old private limited company registered in Barnet, company number 04373237, one of 43 installation companies (insulation, lifts, shutters and similar) in Barnet. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £16K (-63%) on the year before, to £9,564.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £61K against £76K owed within a year: 0.8 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £9,564 | £0 | £61K | £76K | 0 |
| 31 Mar 2025 | £26K | £5,884 | £59K | £64K | 0 |
| 31 Mar 2024 | £12K | £0 | £43K | £58K | 3 |
| 31 Mar 2023 | £44K | £12K | £69K | £79K | 3 |
| 31 Mar 2022 | £52K | £9,482 | £86K | £62K | 3 |
| 31 Mar 2021 | £12K | £8,522 | £50K | £76K | 3 |
| 31 Mar 2020 | £64K | £14K | £85K | £71K | |
| 31 Mar 2019 | £69K | £50K | £102K | £51K | |
| 31 Mar 2018 | £83K | £51K | £127K | £66K | |
| 31 Mar 2017 | £82K | £35K | £50K | £16K |
Where NJK Brickwork Limited is registered
The registered office is in Barnet (EN5), in the Barnet local authority area, London. Show EN5 5TZ on a map.
Other trade companies in EN5
- Paysa Gas LtdPlumbers and heating engineers
- Greatway Business LtdInstallers
- Je Mobile Tyres LtdMechanics and garages
- Barnet Air LtdPlumbers and heating engineers
- Hutch Electrical LtdElectricians
- Nexflow Mechanical LtdSpecialist contractors
- A J Plant LtdMotor traders
- Plumbing365 LtdPlumbers and heating engineers
Also registered at this address
19 other companies use the same registered office as NJK Brickwork Limited.
- A J Plant LtdMotor traders
- Andrew Carney U.K. LimitedSpecialist contractors
- Avital LimitedProperty developers
- Biddenfield Holdings LtdProperty developers
- C T Lawrence LtdSpecialist contractors
- Claddagh Developments LimitedInstallers
- Deeley LimitedInstallers
- Grid Line Foundations LimitedProperty developers
- Gridline Plant Hire LimitedSpecialist contractors
- Harte Civil Engineering LtdCivil engineering
- Kilcoyne & Scahill Motors UK LtdMotor traders
- Leanes Kitchens & Bedrooms (UK) LimitedInstallers
- Lec Serve LimitedElectricians
- Lintonhill LtdProperty developers
- MH Costa Construction LimitedProperty developers
- Mullen Civil Engineering LtdCivil engineering
- Nadlan One LimitedProperty developers
- Northampton Commercial LimitedProperty developers
- Walls Forge UK LtdInstallers
What happens if NJK Brickwork Limited 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 04373237
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 February 2002 (24 years ago)
- Registered office
- 5 Beauchamp Court, Victors Way, Barnet, London, EN5 5TZ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 31 January 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
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 Barnet
Other active installation companies (insulation, lifts, shutters and similar) registered in Barnet.
- Oakwood Conservatories (London) Limited2005
- Oakwood Windows Limited1978
- Oakwood Windows London Ltd2025
- Occupa Limited2008
- Pinnacle Structural Glazing Ltd2024
- Pioppo Limited2009
- Sliding Door and Bifold Repair Specialists Limited2023
- Steel Window Service & Supplies Limited1956
All installation companies (insulation, lifts, shutters and similar) in Barnet · All trades in Barnet · Installers across the UK
Frequently asked questions
When are NJK Brickwork Limited's accounts due?
NJK Brickwork Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is NJK Brickwork Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is NJK Brickwork Limited still trading?
NJK Brickwork Limited 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 NJK Brickwork Limited do?
NJK Brickwork Limited is registered under Other construction installation (SIC 43290).
How old is NJK Brickwork Limited?
NJK Brickwork Limited was incorporated on 13 February 2002, 24 years ago.
What is the penalty if NJK Brickwork Limited 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 NJK Brickwork Limited 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.