- Companies
- Finishing trades
- London
- Alpmar Ltd
Alpmar Ltd
- Company number
- 14874430
- Incorporated
- 17 May 20233 years trading
- Registered office
- 28 Yarmouth Crescent, London, N17 9PG
- Nature of business
- Other building completion and finishing; Other specialised construction activities n.e.c.; Window cleaning services
Alpmar Ltd is a 3-year-old private limited company registered in London, company number 14874430, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 down £4,162 on the year before, to -£4,162.
- 3 employees on average, up from 0 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | -£4,162 | £0 | £4,162 | 3 | |
| 31 May 2024 | £0 | £0 | £0 | 0 |
Where Alpmar Ltd is registered
The registered office is in London (N17), in the Haringey local authority area, London. Show N17 9PG on a map.
Other trade companies in N17
- JKL Building & Maintenance LtdFinishing trades
- Vas-Vent LtdSpecialist contractors
- Zbrsons LtdMotor traders
- Bally 33 LtdBuilders
- Abcd Cleaning LtdCleaning companies
- Mie Cleaning Solutions LtdCleaning companies
- Worklane LtdRoofers
- Figzu LtdCleaning companies
What happens if Alpmar 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 14874430
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 May 2023 (3 years ago)
- Registered office
- 28 Yarmouth Crescent, London, N17 9PG
- Nature of business
- Other building completion and finishing (SIC 43390)
Other specialised construction activities n.e.c. (SIC 43999)
Window cleaning services (SIC 81221) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 21 August 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- Alro Contractors Limited2022
- Alsoaa Constriction Ltd2025
- Alsono Ltd2016
- Alt Builders Ltd2022
- Altaven Group Limited2026
- Alteku Ltd2016
- Alto Build Co. Ltd2014
- Altoluxo Furnishings Ltd2025
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are Alpmar Ltd's accounts due?
Alpmar Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Alpmar Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Alpmar Ltd still trading?
Alpmar 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 Alpmar Ltd do?
Alpmar Ltd is registered under Other building completion and finishing (SIC 43390); Other specialised construction activities n.e.c. (SIC 43999); Window cleaning services (SIC 81221).
How old is Alpmar Ltd?
Alpmar Ltd was incorporated on 17 May 2023, 3 years ago.
What is the penalty if Alpmar 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 Alpmar 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.