- Companies
- Plumbers and heating engineers
- Harrow
- London Plumber Limited
London Plumber Limited
- Company number
- 10016096
- Incorporated
- 19 Feb 201610 years trading
- Registered office
- 1 Warner House, Harrovian Business Village, Bessborough Road, Harrow, HA1 3EX
- Nature of business
- Plumbing, heat and air-conditioning installation
London Plumber Limited is a 10-year-old private limited company registered in Harrow, company number 10016096, one of 154 plumbing and heating companies in Harrow. 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 unchanged on the year before, at £3,222.
- Net assets rose in 0 of 8 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £3,222 | £4,343 | 1 | ||
| 31 Mar 2024 | £3,222 | £4,343 | 1 | ||
| 31 Mar 2023 | £3,222 | £0 | £4,343 | 1 | |
| 31 Mar 2022 | £3,222 | £190 | £4,533 | 1 | |
| 31 Mar 2021 | £3,222 | £190 | £4,533 | 1 | |
| 31 Mar 2020 | £3,222 | £190 | £4,533 | 1 | |
| 31 Mar 2019 | £3,222 | £190 | £4,533 | ||
| 31 Mar 2018 | £4,031 | £34 | £3,568 | ||
| 31 Mar 2017 | £8,214 | £2,373 | £4,246 |
Where London Plumber Limited is registered
The registered office is in Harrow (HA1), in the Harrow local authority area, London. Show HA1 3EX on a map.
Other trade companies in HA1
- Cabos Electrical LimitedElectricians
- Mia Maria Services LtdCleaning companies
- Ac Operations LtdScaffolders
- Verde Masters LtdLandscapers and gardeners
- Omega Works Group LtdLandscapers and gardeners
- Call 'Em LimitedPlumbers and heating engineers
- Swan Roofing Services LimitedRoofers
- DRV Property Solutions LtdPainters and decorators
Also registered at this address
22 other companies use the same registered office as London Plumber Limited.
- 2 A T Design LimitedFinishing trades
- 35 ST Mary's Road LimitedProperty developers
- Alden Construction Group LimitedSpecialist contractors
- Aum Electrical & Solar Solutions LtdElectricians
- Barnet Motor Medics LimitedMechanics and garages
- Bishop Court Farm (Ventures) LimitedProperty developers
- Crown Coast (Romford) LimitedProperty developers
- Crown Coast Property LimitedProperty developers
- Crownglen Commercial LimitedProperty developers
- Crownglen LimitedProperty developers
- Flexx Service Centre LimitedMechanics and garages
- Franklin Developments LimitedProperty developers
- Franklin Galley Property LimitedProperty developers
- Hendon Glass LtdGlaziers
- Howard Simons LimitedProperty developers
- L&P Hurlock Developments LimitedProperty developers
- Lanstones Property LimitedProperty developers
- P Featherstone Developments LimitedProperty developers
- Propcore Partners LimitedProperty developers
- UK Refurbishment LimitedBuilders
- Verde Masters LtdLandscapers and gardeners
- Zoom 247 LimitedPlumbers and heating engineers
What happens if London Plumber 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 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
- 10016096
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 February 2016 (10 years ago)
- Registered office
- 1 Warner House, Harrovian Business Village, Bessborough Road, Harrow, HA1 3EX
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 12 May 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 Harrow
Other active plumbing and heating companies registered in Harrow.
- London Plumbing and Heating 247 Ltd2024
- Luk Vent Limited2026
- Lyndhurst Heating Limited2016
- M.Z. Plumbing & Heating Ltd2013
- Marval Services Limited1987
- Max Gas Ltd2021
- Max Plumbing Ltd2021
- McCarthy Plumbing and Heating Ltd2022
All plumbing and heating companies in Harrow · All trades in Harrow · Plumbers and heating engineers across the UK
Frequently asked questions
When are London Plumber Limited's accounts due?
London Plumber Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is London Plumber 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 London Plumber Limited still trading?
London Plumber 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 London Plumber Limited do?
London Plumber Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is London Plumber Limited?
London Plumber Limited was incorporated on 19 February 2016, 10 years ago.
What is the penalty if London Plumber 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 London Plumber 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.