- Companies
- Plumbers and heating engineers
- St Albans
- Alpha Plumbers Ltd
Alpha Plumbers Ltd
- Company number
- 15737219
- Incorporated
- 23 May 20242 years trading
- Registered office
- 105 the Hill, St Albans, Hertfordshire, AL4 8PR
- Nature of business
- Plumbing, heat and air-conditioning installation
Alpha Plumbers Ltd is a 2-year-old private limited company registered in St Albans, company number 15737219, one of 67 plumbing and heating companies in St Albans. 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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Financial snapshot, 2025
From the balance sheet at 31 May 2025, as filed at Companies House.
Where Alpha Plumbers Ltd is registered
The registered office is in St Albans (AL4), in the St Albans local authority area, East of England. Show AL4 8PR on a map.
Other trade companies in AL4
- Savanto LimitedMotor traders
- Smart Finishes LtdPlasterers
- Htandg (Community Services) LtdLandscapers and gardeners
- Block Fire LtdElectricians
- Legacy Outdoor Living LtdLandscapers and gardeners
- Tahir Waqas Construction UK LtdBuilders
- BT Bim LimitedSpecialist contractors
- J&K Property (Herts) LtdInstallers
What happens if Alpha Plumbers 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
- 15737219
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 May 2024 (2 years ago)
- Registered office
- 105 the Hill, St Albans, Hertfordshire, AL4 8PR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 22 May 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 St Albans
Other active plumbing and heating companies registered in St Albans.
- Aphex Heating Engineers Ltd2020
- Arnold James (ST. Albans) Limited1958
- Atk Environmental Ltd2023
- B M Pool Heating Limited2023
- C Godfrey Plumbing Services Ltd2010
- Chalgrave Plumbing & Heating Ltd2012
- D. J. & M. Plumbing Services Limited2003
- D.Whitby Bathrooms & Kitchens Ltd2021
All plumbing and heating companies in St Albans · All trades in St Albans · Plumbers and heating engineers across the UK
Frequently asked questions
When are Alpha Plumbers Ltd's accounts due?
Alpha Plumbers 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 Alpha Plumbers 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 Alpha Plumbers Ltd still trading?
Alpha Plumbers 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 Alpha Plumbers Ltd do?
Alpha Plumbers Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Alpha Plumbers Ltd?
Alpha Plumbers Ltd was incorporated on 23 May 2024, 2 years ago.
What is the penalty if Alpha Plumbers 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 Alpha Plumbers 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.