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- Berncool Ltd
Company profile · Plumbers and heating engineers
Berncool Ltd
Berncool Ltd is a 6-year-old private limited company registered in London, company number 12423765, 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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Financial snapshot, 2026
From the balance sheet at 31 January 2026, as filed at Companies House.
Berncool Ltd over the years
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 £785 (+11.3%) on the year before, to £7,757.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £17K against £8,789 owed within a year: 1.9 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 | £7,757 | £101 | £17K | £8,789 | 1 |
| 31 Jan 2025 | £6,972 | £0 | £16K | £9,462 | 1 |
| 31 Jan 2024 | £5,025 | £86 | £17K | £11K | 1 |
| 31 Jan 2023 | £3,193 | £2,300 | £16K | £13K | 1 |
| 31 Jan 2022 | £9,516 | £9,516 | £0 | 1 | |
| 31 Jan 2021 | £13K | £13K | 0 |
Where Berncool Ltd is registered
The registered office is in London (SE7), in the Greenwich local authority area, London. Show SE7 7UB on a map.
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What happens if Berncool 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
- 12423765
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 January 2020 (6 years ago)
- Registered office
- 26 Bernard Ashley Drive, London, SE7 7UB
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 23 January 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 London
Other active plumbing and heating companies registered in London.
- Bert's Build Co. Ltd2025
- Bespoke Heat Pump Systems Ltd2021
- Bespoke Heating and Cooling Ltd2026
- Bespoke Temperature Solutions Ltd2026
- Better Gas Ltd2019
- Better Home Supplies Limited2016
- Bexley Renewables Ltd2026
- BH & Scott Ltd2025
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Berncool Ltd's accounts due?
Berncool Ltd's next accounts are due at Companies House by 31 October 2027 (in 384 days), covering the period to 31 January 2027.
When is Berncool 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 Berncool Ltd still trading?
Berncool 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 Berncool Ltd do?
Berncool Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Berncool Ltd?
Berncool Ltd was incorporated on 24 January 2020, 6 years ago.
What is the penalty if Berncool 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 Berncool 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.