- Companies
- Specialist contractors
- Southampton
- Alemco Heating Services Limited
Alemco Heating Services Limited
- Company number
- 12285051
- Incorporated
- 28 Oct 20196 years trading
- Registered office
- 68 Peartree Avenue, Bitterne, Southampton, SO19 7JP
- Nature of business
- Other specialised construction activities n.e.c.
Alemco Heating Services Limited is a 6-year-old private limited company registered in Southampton, company number 12285051, one of 202 specialist construction companies in Southampton. Its next accounts are due at Companies House on 27 October 2026, and its first CT600 is due at HMRC on 31 October 2026.
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 down £64K (-93.5%) on the year before, to £4,424.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £45K against £53K owed within a year: 0.8 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £4,424 | £45K | £53K | 2 | |
| 31 Oct 2024 | £68K | £155K | £96K | 2 | |
| 31 Oct 2023 | £57K | £134K | £89K | 2 | |
| 31 Oct 2022 | -£1,570 | £23K | £8,257 | 0 | |
| 31 Oct 2021 | £69K | £18K | £14K | 2 | |
| 31 Oct 2020 | £1,498 | £14K | 0 |
Where Alemco Heating Services Limited is registered
The registered office is in Southampton (SO19), in the Southampton local authority area, South East. Show SO19 7JP on a map.
Other trade companies in SO19
- 4LK Cleaning Company LtdCleaning companies
- Nest Path Properties LimitedBuilders
- Dautaj Groundworks LtdBuilders
- Craftline Carpentry Services LtdJoiners and carpenters
- Agape-Wise LimitedCleaning companies
- Cool Enterprises LtdPlumbers and heating engineers
- Jmac Carpentry & Building LtdPlasterers
- Auto Motive Dismantling - Amd LtdMotor traders
What happens if Alemco Heating Services 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 27 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 28 Oct 2026 to 27 Nov 2026 | £150 |
| 1 to 3 months late | 28 Nov 2026 to 27 Jan 2027 | £375 |
| 3 to 6 months late | 28 Jan 2027 to 27 Apr 2027 | £750 |
| More than 6 months late | From 28 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 28 Jan 2027 | £200 |
| 3 months late | 27 Apr 2027 | another £200 |
| 6 months late | 27 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 27 Jan 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
- 12285051
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 October 2019 (6 years ago)
- Registered office
- 68 Peartree Avenue, Bitterne, Southampton, SO19 7JP
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2024
- Last confirmation statement
- 1 October 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Southampton
Other active specialist construction companies registered in Southampton.
- Aliport Structures Limited2009
- Allied Maintenance Ltd2026
- Ams Developers Ltd2025
- Apollo Facilities Services Limited2016
- Aps Home Improvements Ltd2021
- Atc Property Maintenance Limited2010
- B Batten Renovations & Development Ltd2022
- B Manley Services Limited2012
All specialist construction companies in Southampton · All trades in Southampton · Specialist contractors across the UK
Frequently asked questions
When are Alemco Heating Services Limited's accounts due?
Alemco Heating Services Limited's next accounts are due at Companies House by 27 October 2026 (in 14 days), covering the period to 27 January 2026.
When is Alemco Heating Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2025, due by 31 October 2026, and one for the period to 27 January 2026, due by 27 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Alemco Heating Services Limited still trading?
Alemco Heating Services 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 Alemco Heating Services Limited do?
Alemco Heating Services Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Alemco Heating Services Limited?
Alemco Heating Services Limited was incorporated on 28 October 2019, 6 years ago.
What is the penalty if Alemco Heating Services 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 Alemco Heating Services 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.