- Companies
- Plumbers and heating engineers
- Swansea
- Gas Services Wales Limited
Gas Services Wales Limited
- Company number
- 04323644
- Incorporated
- 15 Nov 200124 years trading
- Registered office
- ST Helen's Mews, Rear of 89-99 ST. Helens Avenue, Swansea, SA1 4NN
- Nature of business
- Plumbing, heat and air-conditioning installation
Gas Services Wales Limited is a 24-year-old private limited company registered in Swansea, company number 04323644, one of 148 plumbing and heating companies in Swansea. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £1,333 (+36.8%) on the year before, to £4,956.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £43K against £52K owed within a year: 0.8 times cover.
- 6 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £4,956 | £43K | £52K | 6 | |
| 31 Jul 2024 | £3,623 | £65K | £79K | 6 | |
| 31 Jul 2023 | £3,656 | £69K | £70K | 6 | |
| 31 Jul 2022 | £8,531 | £58K | £59K | 5 | |
| 31 Jul 2021 | £18K | £59K | £56K | 7 | |
| 31 Jul 2020 | £14K | £62K | £70K | 5 | |
| 31 Jul 2019 | £28K | £82K | £70K | ||
| 31 Jul 2018 | £36K | £84K | £71K | ||
| 31 Jul 2017 | £59K | £95K | £108K | £86K | |
| 31 Jul 2016 | £32K | £61K | £87K | £105K |
Where Gas Services Wales Limited is registered
The registered office is in Swansea (SA1), in the Swansea local authority area, Wales. Show SA1 4NN on a map.
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- Westway Window Systems LimitedJoiners and carpenters
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- Edefec LtdBuilders
- Swansea Scaffolding Services LtdScaffolders
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- Mesa Property Development LtdProperty developers
What happens if Gas Services Wales 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 04323644
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 November 2001 (24 years ago)
- Registered office
- ST Helen's Mews, Rear of 89-99 ST. Helens Avenue, Swansea, SA1 4NN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 12 November 2025
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.
- Gower Gas & Renewables Limited2015
- Gower Refrigeration and Air Conditioning Ltd2026
- Graham's Heating & Plumbing Ltd2010
- Greens Precise Plumbing & Heating Ltd2020
- GSW & Son Limited2025
- Hale Heating and Plumbing Ltd2020
- Hale Heating and Renewables Ltd2025
- Harry's Heating & Plumbing Ltd2023
All plumbing and heating companies in Swansea · All trades in Swansea · Plumbers and heating engineers across the UK
Frequently asked questions
When are Gas Services Wales Limited's accounts due?
Gas Services Wales Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Gas Services Wales Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Gas Services Wales Limited still trading?
Gas Services Wales 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 Gas Services Wales Limited do?
Gas Services Wales Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Gas Services Wales Limited?
Gas Services Wales Limited was incorporated on 15 November 2001, 24 years ago.
What is the penalty if Gas Services Wales 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 Gas Services Wales 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.