- Companies
- Plumbers and heating engineers
- Rochester
- J-Mech Plumbing and Heating Services Ltd
J-Mech Plumbing and Heating Services Ltd
- Company number
- 05644197
- Incorporated
- 5 Dec 200520 years trading
- Registered office
- 10 Dickens Court Enterprise Close, Medway City Estate, Rochester, Kent, ME2 4LY
- Nature of business
- Plumbing, heat and air-conditioning installation
J-Mech Plumbing and Heating Services Ltd is a 20-year-old private limited company registered in Rochester, company number 05644197, one of 95 plumbing and heating companies in Rochester. 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.
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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 £116K (-34.5%) on the year before, to £220K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £422K against £287K owed within a year: 1.5 times cover.
- 7 employees on average, down from 9 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £220K | £343K | £422K | £287K | 7 |
| 31 Dec 2024 | £336K | £324K | £513K | £280K | 9 |
| 31 Dec 2023 | £244K | £208K | £424K | £277K | 8 |
| 31 Dec 2022 | £407K | £96K | £449K | £70K | 8 |
| 31 Dec 2021 | £397K | £211K | £444K | £72K | 8 |
| 31 Dec 2020 | £414K | £286K | £523K | £143K | 7 |
| 31 Dec 2019 | £399K | £333K | £510K | £97K | 12 |
| 31 Dec 2018 | £319K | £255K | £440K | £82K | 11 |
| 31 Dec 2017 | £253K | £131K | £408K | £121K | 7 |
| 31 Dec 2016 | £96K | £39K | £272K | £162K | 6 |
Where J-Mech Plumbing and Heating Services Ltd is registered
The registered office is in Rochester (ME2), in the Medway local authority area, South East. Show ME2 4LY on a map.
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What happens if J-Mech Plumbing and Heating 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 House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 05644197
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 December 2005 (20 years ago)
- Registered office
- 10 Dickens Court Enterprise Close, Medway City Estate, Rochester, Kent, ME2 4LY
- 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
- 17 July 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 Rochester
Other active plumbing and heating companies registered in Rochester.
- Jack Frost Ac Limited2019
- Jarrett Plumbing Services Ltd2022
- JJS Gas and Heating Limited2020
- JK Cooling Solutions Ltd2025
- JLG Heating & Plumbing Ltd2021
- Jne Plumbing & Builders Ltd2021
- JS Plumbing Limited2025
- Kent Bidets Ltd2024
All plumbing and heating companies in Rochester · All trades in Rochester · Plumbers and heating engineers across the UK
Frequently asked questions
When are J-Mech Plumbing and Heating Services Ltd's accounts due?
J-Mech Plumbing and Heating Services Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is J-Mech Plumbing and Heating 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 J-Mech Plumbing and Heating Services Ltd still trading?
J-Mech Plumbing and Heating 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 J-Mech Plumbing and Heating Services Ltd do?
J-Mech Plumbing and Heating Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is J-Mech Plumbing and Heating Services Ltd?
J-Mech Plumbing and Heating Services Ltd was incorporated on 5 December 2005, 20 years ago.
What is the penalty if J-Mech Plumbing and Heating 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 J-Mech Plumbing and Heating Services 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.