- Companies
- Plumbers and heating engineers
- Barnet
- Alpha Heat Limited
Alpha Heat Limited
- Company number
- 04808548
- Incorporated
- 24 Jun 200323 years trading
- Registered office
- 34 Mount Pleasant, Barnet, EN4 9HH
- Nature of business
- Plumbing, heat and air-conditioning installation
Alpha Heat Limited is a 23-year-old private limited company registered in Barnet, company number 04808548, one of 75 plumbing and heating companies in Barnet. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £5,994 (+212.5%) on the year before, to £8,815.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £22K against £12K owed within a year: 1.8 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £8,815 | £3,741 | £22K | £12K | 2 |
| 30 Jun 2024 | £2,821 | £6,575 | £23K | £13K | 2 |
| 30 Jun 2023 | -£4,347 | £13K | £9,624 | 2 | |
| 30 Jun 2022 | £5,485 | £23K | £4,295 | 2 | |
| 30 Jun 2021 | £5,472 | £23K | £4,324 | 2 | |
| 30 Jun 2020 | £4,934 | £11K | £7,869 | 3 | |
| 30 Jun 2019 | £3,674 | £13K | £12K | ||
| 30 Jun 2018 | £4,599 | £13K | £12K | ||
| 30 Jun 2017 | £4,429 | £9,363 | £9,862 | ||
| 30 Jun 2016 | £3,350 | £1,538 | £11K | £12K |
Who runs and owns Alpha Heat Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| D*** W*** | Director | Jul 2003 |
3 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| A*** W*** | Secretary | Jul 2003 | Jan 2021 |
| Aa Company Services Limited | Corporate Nominee Secretary | Jun 2003 | Jul 2003 |
| Buyview Ltd | Nominee director (company) | Jun 2003 | Jul 2003 |
Person with significant control
Where Alpha Heat Limited is registered
The registered office is in Barnet (EN4), in the Barnet local authority area, London. Show EN4 9HH on a map.
Other trade companies in EN4
- Mechanica Frequentia Calculi LtdElectricians
- Conrad Cleaning LimitedCleaning companies
- Vreto & Co LtdCleaning companies
- Reclaim Automotive UK LtdMotor traders
- We Love 500'S LimitedMechanics and garages
- Vanta Gas & Heating LtdBuilders
- T C Developments LtdProperty developers
- Xran LtdBuilders
What happens if Alpha Heat 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 04808548
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 June 2003 (23 years ago)
- Registered office
- 34 Mount Pleasant, Barnet, EN4 9HH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 27 February 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 Barnet
Other active plumbing and heating companies registered in Barnet.
- Alpha Plumbing Group Ltd2025
- Aquakare Limited1999
- Arkley Heating Ltd2017
- Arrow10 Ltd2018
- B & F Plumbing & Heating Limited2012
- Barnet Air Ltd2026
- Barnet Group Ltd.2016
- Boilers Correct Limited2025
All plumbing and heating companies in Barnet · All trades in Barnet · Plumbers and heating engineers across the UK
Frequently asked questions
When are Alpha Heat Limited's accounts due?
Alpha Heat Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Alpha Heat Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Alpha Heat Limited still trading?
Alpha Heat 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 Alpha Heat Limited do?
Alpha Heat Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Alpha Heat Limited?
Alpha Heat Limited was incorporated on 24 June 2003, 23 years ago.
Who runs Alpha Heat Limited?
Alpha Heat Limited has 1 active director, the longest-serving appointed in Jul 2003. Their names and service addresses are on the Companies House register.
Who owns Alpha Heat Limited?
One person or company has significant control of Alpha Heat Limited: an individual (owns 75% or more of the shares).
What is the penalty if Alpha Heat 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 Alpha Heat 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.