- Companies
- Plumbers and heating engineers
- Southampton
- N Brown Plumbing & Heating Ltd.
N Brown Plumbing & Heating Ltd.
- Company number
- 04135716
- Incorporated
- 4 Jan 200125 years trading
- Registered office
- Suite - 4, 142 Lodge Road, Southampton, SO14 6QR
- Nature of business
- Plumbing, heat and air-conditioning installation
N Brown Plumbing & Heating Ltd. is a 25-year-old private limited company registered in Southampton, company number 04135716, one of 246 plumbing and heating companies in Southampton. 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.
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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 £202 (+72.9%) on the year before, to £479.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £9,300 against £15K owed within a year: 0.6 times cover.
- 2 employees on average during the year.
- 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 Mar 2025 | £479 | £6,219 | £9,300 | £15K | 2 |
| 31 Jan 2024 | £277 | £10K | £14K | £13K | 2 |
| 31 Jan 2023 | £177 | £6,759 | £15K | £12K | 2 |
| 31 Jan 2022 | £149 | £5,392 | £15K | £11K | 2 |
| 31 Jan 2021 | £4,795 | £17K | £24K | £14K | 2 |
| 31 Jan 2020 | £216 | £3,764 | £9,250 | £13K | 2 |
| 31 Jan 2019 | £347 | £0 | £5,903 | £9,937 | 2 |
| 31 Jan 2018 | £341 | £5,121 | £9,783 | £15K | 2 |
| 31 Jan 2017 | £352 | £6,424 | £8,714 | £15K | |
| 31 Jan 2016 | £412 | £11K | £20K | £28K |
Where N Brown Plumbing & Heating Ltd. is registered
The registered office is in Southampton (SO14), in the Southampton local authority area, South East. Show SO14 6QR on a map.
Other trade companies in SO14
- Cat Garage LtdMechanics and garages
- Sonix LtdBuilders
- Vanie & Dick LtdBuilders
- 33 Motors LtdMotor traders
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- Cccjr Trading LimitedMotor traders
- Otess LtdFloor and wall tilers
- Bevertex LimitedElectricians
What happens if N Brown Plumbing & Heating 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 04135716
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 January 2001 (25 years ago)
- Registered office
- Suite - 4, 142 Lodge Road, Southampton, SO14 6QR
- 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
- 31 January 2026
- Previous names
- Brown Plumbing & Heating Ltd (until 15 May 2013)
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 Southampton
Other active plumbing and heating companies registered in Southampton.
- Nabline Ltd2021
- New Forest Air Conditioning Ltd2018
- New Forest Emergency Plumbing Limited2021
- Nova Plumbing and Heating Ltd2008
- Oscar James Mechanical Ltd2022
- Osman Plumbing & Heating Ltd2024
- P B Cooling Ltd2009
- PHC Southampton Ltd2020
All plumbing and heating companies in Southampton · All trades in Southampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are N Brown Plumbing & Heating Ltd.'s accounts due?
N Brown Plumbing & Heating Ltd.'s next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is N Brown Plumbing & Heating Ltd.'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 N Brown Plumbing & Heating Ltd. still trading?
N Brown Plumbing & Heating 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 N Brown Plumbing & Heating Ltd. do?
N Brown Plumbing & Heating Ltd. is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is N Brown Plumbing & Heating Ltd.?
N Brown Plumbing & Heating Ltd. was incorporated on 4 January 2001, 25 years ago.
What is the penalty if N Brown Plumbing & Heating 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 N Brown Plumbing & Heating 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.