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  4. NJK Heating Limited

NJK Heating Limited

ActiveTotal exemption (full) accountsPlumbers and heating engineersKidderminster
Company number
05707139
Incorporated
13 Feb 200620 years trading
Registered office
145 Sutton Park Road, Kidderminster, Worcestershire, DY11 6JQ
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
80 days
31 Dec 2026
Net assets
£13K▼
-27.2% on the year before
Cash at bank
£67K▲
At 31 Mar 2025
Employees
5
Average during the year
From the Companies House register, 1 Oct 2026

NJK Heating Limited is a 20-year-old private limited company registered in Kidderminster, company number 05707139, one of 40 plumbing and heating companies in Kidderminster. 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.

Accounts due
31 Dec 2026
in 80 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 170 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 81 days
9 months and 1 day after the period end
Confirmation statement
27 Feb 2027
in 138 days
Last made up to 13 Feb 2026

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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 £4,923 (-27.2%) on the year before, to £13K.
  • Net assets rose in 3 of 9 year-on-year comparisons on record.
  • Current assets of £80K against £71K owed within a year: 1.1 times cover.
  • 5 employees on average during the year.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£20K£40K31 March 2016: net assets £11K£11K201631 March 2017: net assets £27K£27K201731 March 2018: net assets £14K£14K201831 March 2019: net assets £1,368£1,368201931 March 2020: net assets £28K£28K202031 March 2021: net assets £16K£16K202131 March 2022: net assets £58K£58K202231 March 2023: net assets £33K£33K202331 March 2024: net assets £18K£18K202431 March 2025: net assets £13K£13K2025
Net assets at each year end, 2016 to 2025£0£20K£40K31 March 2016: net assets £11K£11K'1631 March 2017: net assets £27K£27K'1731 March 2018: net assets £14K£14K'1831 March 2019: net assets £1,368£1,368'1931 March 2020: net assets £28K£28K'2031 March 2021: net assets £16K£16K'2131 March 2022: net assets £58K£58K'2231 March 2023: net assets £33K£33K'2331 March 2024: net assets £18K£18K'2431 March 2025: net assets £13K£13K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025£13K£67K£80K£71K5
31 Mar 2024£18K£66K£107K£93K5
31 Mar 2023£33K£81K£131K£111K5
31 Mar 2022£58K£75K£200K£156K5
31 Mar 2021£16K£69K£109K£105K5
31 Mar 2020£28K£55K£99K£105K5
31 Mar 2019£1,368£47K£72K£111K5
31 Mar 2018£14K£26K£76K£110K6
31 Mar 2017£27K£87K£108K£131K6
31 Mar 2016£11K£29K£94K£135K

Where NJK Heating Limited is registered

NJK Heating Limited's registered office on a map of the UK

The registered office is in Kidderminster (DY11), in the Wyre Forest local authority area, West Midlands. Show DY11 6JQ on a map.

Other trade companies in DY11

What happens if NJK Heating 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 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 2027 to 30 Jun 2027£750
More than 6 months lateFrom 1 Jul 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2028another 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
05707139
Status
Active
Company type
Private limited company
Incorporated
13 February 2006 (20 years ago)
Registered office
145 Sutton Park Road, Kidderminster, Worcestershire, DY11 6JQ
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 March (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 March 2025
Last confirmation statement
13 February 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.

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Frequently asked questions

When are NJK Heating Limited's accounts due?

NJK Heating Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.

When is NJK Heating Limited'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 NJK Heating Limited still trading?

NJK Heating 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 Heating Limited do?

NJK Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is NJK Heating Limited?

NJK Heating Limited was incorporated on 13 February 2006, 20 years ago.

What is the penalty if NJK Heating 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 Heating Limited on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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