- Companies
- Plumbers and heating engineers
- St Albans
- Aphex Heating Engineers Ltd
Aphex Heating Engineers Ltd
- Company number
- 12407979
- Incorporated
- 16 Jan 20206 years trading
- Registered office
- 19 Batchwood View, St Albans, Hertfordshire, AL3 5TD
- Nature of business
- Plumbing, heat and air-conditioning installation
Aphex Heating Engineers Ltd is a 6-year-old private limited company registered in St Albans, company number 12407979, one of 67 plumbing and heating companies in St Albans. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £4,891 (+976.2%) on the year before, to £5,392.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £18K against £12K owed within a year: 1.4 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £5,392 | £18K | £12K | 2 | |
| 31 Jan 2024 | £501 | £12K | £11K | 1 | |
| 31 Jan 2023 | £4,255 | £10K | £5,869 | 1 | |
| 31 Jan 2022 | £3,704 | £145 | £3,849 | 0 | |
| 31 Jan 2021 | £1 | £1 |
Where Aphex Heating Engineers Ltd is registered
The registered office is in St Albans (AL3), in the St Albans local authority area, East of England. Show AL3 5TD on a map.
Other trade companies in AL3
- KS Facilities LtdCleaning companies
- Cob Flooring and Building LtdFloor and wall tilers
- Loban Joinery Solutions LimitedJoiners and carpenters
- Kee and Drew Construction LimitedBuilders
- Yavir Greenworks LimitedLandscapers and gardeners
- Iop Services LimitedCivil engineering
- Plumridge FM LtdProperty developers
- Ag Roofing Homes LimitedFinishing trades
What happens if Aphex Heating Engineers 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 12407979
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 January 2020 (6 years ago)
- Registered office
- 19 Batchwood View, St Albans, Hertfordshire, AL3 5TD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 15 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 St Albans
Other active plumbing and heating companies registered in St Albans.
- 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
- Doc Plumbing, Heating & Gas 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 Aphex Heating Engineers Ltd's accounts due?
Aphex Heating Engineers Ltd's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is Aphex Heating Engineers Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Aphex Heating Engineers Ltd still trading?
Aphex Heating Engineers 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 Aphex Heating Engineers Ltd do?
Aphex Heating Engineers Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Aphex Heating Engineers Ltd?
Aphex Heating Engineers Ltd was incorporated on 16 January 2020, 6 years ago.
What is the penalty if Aphex Heating Engineers 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 Aphex Heating Engineers 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.