- Companies
- Plumbers and heating engineers
- London
- Warr Mechanical Ltd
Warr Mechanical Ltd
- Company number
- 12398826
- Incorporated
- 13 Jan 20206 years trading
- Registered office
- 85 Hill Road, London, N10 1JE
- Nature of business
- Plumbing, heat and air-conditioning installation
Warr Mechanical Ltd is a 6-year-old private limited company registered in London, company number 12398826, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
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 £15K (+64.6%) on the year before, to £38K.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £55K against £39K owed within a year: 1.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2021 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £38K | £55K | £39K | 1 | |
| 31 Jan 2025 | £23K | £39K | £40K | 1 | |
| 31 Jan 2024 | £44K | £113K | £86K | 1 | |
| 31 Jan 2023 | £51K | £106K | £41K | 1 | |
| 31 Jan 2022 | £51K | £88K | £43K | 1 | |
| 31 Jan 2021 | £58K | £110K | £41K | 1 |
Where Warr Mechanical Ltd is registered
The registered office is in London (N10), in the Haringey local authority area, London. Show N10 1JE on a map.
Other trade companies in N10
- Endo Climates LimitedPlumbers and heating engineers
- Bjpwaterworks LtdProperty developers
- Oxman LimitedProperty developers
- Union Traffic Management LtdLandscapers and gardeners
- National Engine Solutions LimitedMotor traders
- A&D Building Solutions LtdProperty developers
- Primeropesolutions LtdSpecialist contractors
- The Aircon Market LtdPlumbers and heating engineers
What happens if Warr Mechanical 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 12398826
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 January 2020 (6 years ago)
- Registered office
- 85 Hill Road, London, N10 1JE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 21 December 2025
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 London
Other active plumbing and heating companies registered in London.
- Water Doctor Limited2025
- Water Freedom Limited2021
- Watercrafts Plumbing Limited2019
- Waterfall (GB) Limited2006
- Waterguys Limited2014
- Waterline Plumbing & Heating Limited2010
- Watermarks Plumbing Ltd2020
- Waterngas Limited2010
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Warr Mechanical Ltd's accounts due?
Warr Mechanical Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Warr Mechanical Ltd's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Warr Mechanical Ltd still trading?
Warr Mechanical 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 Warr Mechanical Ltd do?
Warr Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Warr Mechanical Ltd?
Warr Mechanical Ltd was incorporated on 13 January 2020, 6 years ago.
What is the penalty if Warr Mechanical 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 Warr Mechanical 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.