- Companies
- Plumbers and heating engineers
- Gillingham
- J White Mechanical Limited
J White Mechanical Limited
- Company number
- 10854441
- Incorporated
- 6 Jul 20179 years trading
- Registered office
- 259 Woodlands Road, Gillingham, Medway, ME7 2SY
- Nature of business
- Plumbing, heat and air-conditioning installation
J White Mechanical Limited is a 9-year-old private limited company registered in Gillingham, company number 10854441, one of 92 plumbing and heating companies in Gillingham. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £16 (-59.3%) on the year before, to £11.
- Net assets rose in 0 of 3 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2018 to 2021.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2021 | £11 | £14K | 1 | ||
| 31 Jul 2020 | £27 | £17K | 1 | ||
| 31 Jul 2019 | £100 | £15K | £15K | ||
| 31 Jul 2018 | £143 | £16 | £3,672 | £3,529 |
Where J White Mechanical Limited is registered
The registered office is in Gillingham (ME7), in the Medway local authority area, South East. Show ME7 2SY on a map.
Other trade companies in ME7
- Jarvis Builders LtdBuilders
- Weatherwize Roofers LtdRoofers
- Gbo Homes LimitedFinishing trades
- Somnium Renovations LtdBuilders
- Roof Pro Roofing LtdRoofers
- Glow&Go Services LtdCleaning companies
- Dispatch Services Now LtdMotor traders
- Asm Building Solutions LimitedProperty developers
What happens if J White Mechanical 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 10854441
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 July 2017 (9 years ago)
- Registered office
- 259 Woodlands Road, Gillingham, Medway, ME7 2SY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 2 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 Gillingham
Other active plumbing and heating companies registered in Gillingham.
- J&G Spares & Services Limited2011
- J.Lee Plumbing and Heating Ltd2026
- Jadeb Plumbing & Heating Limited2012
- Jag Mechanical Building Services Limited2017
- JL Duct Limited2021
- JNM Heating&Plumbing Ltd2024
- Jpe Building Refurbishments Limited2020
- Jpe Heating Limited2017
All plumbing and heating companies in Gillingham · All trades in Gillingham · Plumbers and heating engineers across the UK
Frequently asked questions
When are J White Mechanical Limited's accounts due?
J White Mechanical Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is J White Mechanical Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is J White Mechanical Limited still trading?
J White Mechanical 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 J White Mechanical Limited do?
J White Mechanical Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is J White Mechanical Limited?
J White Mechanical Limited was incorporated on 6 July 2017, 9 years ago.
What is the penalty if J White Mechanical 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 J White Mechanical 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.