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CJS Mechanical Services Ltd

ActiveTotal exemption (full) accountsPlumbers and heating engineersElland
Company number
11312615
Incorporated
16 Apr 20188 years trading
Registered office
Heritage Exchange, South Lane, Elland, West Yorkshire, HX5 0HG
Nature of business
Plumbing, heat and air-conditioning installation
Accounts due in
353 days
30 Sep 2027
Net assets
£41K▲
+48.0% on the year before
Cash at bank
£144K▲
At 31 Dec 2025
Employees
12
Average during the year
From the Companies House register, 1 Oct 2026

CJS Mechanical Services Ltd is a 8-year-old private limited company registered in Elland, company number 11312615, one of 10 plumbing and heating companies in Elland. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
30 Sep 2027
in 353 days
For the period to 31 Dec 2026
CT600 due
31 Dec 2027
in 445 days
Period 1 Jan 2026 to 31 Dec 2026
Corporation tax payment
1 Oct 2027
in 354 days
9 months and 1 day after the period end
Confirmation statement
12 Mar 2027
in 151 days
Last made up to 26 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 up £13K (+48%) on the year before, to £41K.
  • Net assets rose in 4 of 7 year-on-year comparisons on record.
  • Current assets of £319K against £272K owed within a year: 1.2 times cover.
  • 12 employees on average, up from 10 the year before.
  • Balance sheets on record for 8 years, 2019 to 2025.

Net assets by year

Net assets at each year end, 2019 to 2025£0£25K31 May 2019: net assets £1,939£1,939201931 May 2020: net assets -£10K-£10K202031 May 2021: net assets -£20K-£20K202131 May 2022: net assets £18K£18K202231 May 2023: net assets £28K£28K202331 May 2024: net assets £6,396£6,396202431 December 2024: net assets £28K£28K202431 December 2025: net assets £41K£41K2025
Net assets at each year end, 2019 to 2025£0£25K31 May 2019: net assets £1,939£1,939'1931 May 2020: net assets -£10K-£10K'2031 May 2021: net assets -£20K-£20K'2131 May 2022: net assets £18K£18K'2231 May 2023: net assets £28K£28K'2331 May 2024: net assets £6,396£6,396'2431 December 2024: net assets £28K£28K'2431 December 2025: net assets £41K£41K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2025£41K£144K£319K£272K12
31 Dec 2024£28K£133K£96K10
31 May 2024£6,396£97K£99K8
31 May 2023£28K£103K£86K10
31 May 2022£18K£56K£67K6
31 May 2021-£20K£25K£61K£71K4
31 May 2020-£10K£50K£61K£91K4
31 May 2019£1,939£29K£50K£72K3

Where CJS Mechanical Services Ltd is registered

CJS Mechanical Services Ltd's registered office on a map of the UK

The registered office is in Elland (HX5), in the Calderdale local authority area, Yorkshire and The Humber. Show HX5 0HG on a map.

Other trade companies in HX5

Also registered at this address

22 other companies use the same registered office as CJS Mechanical Services Ltd.

What happens if CJS Mechanical Services 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 30 September 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Oct 2027 to 31 Oct 2027£150
1 to 3 months late1 Nov 2027 to 31 Dec 2027£375
3 to 6 months late1 Jan 2028 to 31 Mar 2028£750
More than 6 months lateFrom 1 Apr 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Jan 2028£200
3 months late31 Mar 2028another £200
6 months late30 Jun 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 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
11312615
Status
Active
Company type
Private limited company
Incorporated
16 April 2018 (8 years ago)
Registered office
Heritage Exchange, South Lane, Elland, West Yorkshire, HX5 0HG
Nature of business
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 December (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 December 2025
Last confirmation statement
26 February 2026
Previous names
CJS Plumbing and Heating Limited (until 31 Oct 2023)

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 Elland

Other active plumbing and heating companies registered in Elland.

All plumbing and heating companies in Elland · All trades in Elland · Plumbers and heating engineers across the UK

Frequently asked questions

When are CJS Mechanical Services Ltd's accounts due?

CJS Mechanical Services Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.

When is CJS Mechanical Services Ltd's CT600 due?

The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.

Is CJS Mechanical Services Ltd still trading?

CJS Mechanical Services 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 CJS Mechanical Services Ltd do?

CJS Mechanical Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).

How old is CJS Mechanical Services Ltd?

CJS Mechanical Services Ltd was incorporated on 16 April 2018, 8 years ago.

What is the penalty if CJS Mechanical Services 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 CJS Mechanical Services Ltd 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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