- Companies
- Plumbers and heating engineers
- Swansea
- Helix Plumbing and Gas Limited
Helix Plumbing and Gas Limited
- Company number
- 14929869
- Incorporated
- 12 Jun 20233 years trading
- Registered office
- 5 Coed Glas, Pontarddulais, Swansea, SA4 0AD
- Nature of business
- Plumbing, heat and air-conditioning installation
Helix Plumbing and Gas Limited is a 3-year-old private limited company registered in Swansea, company number 14929869, one of 148 plumbing and heating companies in Swansea. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £2,641 (-32.4%) on the year before, to £5,520.
- Current assets of £12K against £8,941 owed within a year: 1.3 times cover.
- 2 employees on average during the year.
- 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 Mar 2025 | £5,520 | £12K | £8,941 | 2 | |
| 31 Mar 2024 | £8,161 | £12K | £6,706 | 2 |
Where Helix Plumbing and Gas Limited is registered
The registered office is in Swansea (SA4), in the Carmarthenshire local authority area, Wales. Show SA4 0AD on a map.
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What happens if Helix Plumbing and Gas 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 14929869
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 June 2023 (3 years ago)
- Registered office
- 5 Coed Glas, Pontarddulais, Swansea, SA4 0AD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 10 June 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 Swansea
Other active plumbing and heating companies registered in Swansea.
- Hendre Gas Services Ltd2021
- Home Eco Solutions Limited2020
- Hooke Plumbing & Heating Ltd2013
- HPL (Wales) Limited2014
- HS Services PHG Ltd2022
- HWV 11 Limited2007
- Hybrid Heating Limited2025
- Hydratech Mechanical and Electrical Ltd2018
All plumbing and heating companies in Swansea · All trades in Swansea · Plumbers and heating engineers across the UK
Frequently asked questions
When are Helix Plumbing and Gas Limited's accounts due?
Helix Plumbing and Gas Limited's next accounts are due at Companies House by 31 December 2026 (in 78 days), covering the period to 31 March 2026.
When is Helix Plumbing and Gas Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Helix Plumbing and Gas Limited still trading?
Helix Plumbing and Gas 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 Helix Plumbing and Gas Limited do?
Helix Plumbing and Gas Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Helix Plumbing and Gas Limited?
Helix Plumbing and Gas Limited was incorporated on 12 June 2023, 3 years ago.
What is the penalty if Helix Plumbing and Gas 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 Helix Plumbing and Gas 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.