- Companies
- Plumbers and heating engineers
- Swansea
- Plumbtec Gas Ltd
Plumbtec Gas Ltd
- Company number
- 08754313
- Incorporated
- 30 Oct 201312 years trading
- Registered office
- 7 Clayton Road, Pontarddulais, Swansea, SA4 0US
- Nature of business
- Plumbing, heat and air-conditioning installation
Plumbtec Gas Ltd is a 12-year-old private limited company registered in Swansea, company number 08754313, one of 148 plumbing and heating companies in Swansea. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £19K (+64.5%) on the year before, to £49K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £43K against £26K owed within a year: 1.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £49K | £43K | £26K | 2 | |
| 31 Oct 2024 | £30K | £51K | £33K | 2 | |
| 31 Oct 2023 | £26K | £37K | £26K | 2 | |
| 31 Oct 2022 | £34K | £32K | £15K | 3 | |
| 31 Oct 2021 | £47K | £48K | £20K | 2 | |
| 31 Oct 2020 | £24K | £102K | £27K | 2 | |
| 31 Oct 2019 | £14K | £27K | £15K | 2 | |
| 31 Oct 2018 | £11K | £36K | £22K | 3 |
Where Plumbtec Gas Ltd is registered
The registered office is in Swansea (SA4), in the Carmarthenshire local authority area, Wales. Show SA4 0US on a map.
Other trade companies in SA4
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- Ridgewood Property Group LtdBuilders
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- RHV Solutions LimitedElectricians
- Bay Divers Services LtdMachinery repair and installation
- Dmo Automotive Services LtdMechanics and garages
- Biggs Contracting Services LtdBuilders
What happens if Plumbtec Gas 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 08754313
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 October 2013 (12 years ago)
- Registered office
- 7 Clayton Road, Pontarddulais, Swansea, SA4 0US
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 30 October 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.
- Premier Plumbing Ltd2021
- Premium Plumbing Solutions Ltd2023
- Pursey and Ball Limited2005
- Quint Heating Services Limited2016
- R L Rees Ltd2014
- R.T. Scott Ltd2014
- RM Blake Ltd2014
- S D W Plumbing & Heating South Wales Ltd2024
All plumbing and heating companies in Swansea · All trades in Swansea · Plumbers and heating engineers across the UK
Frequently asked questions
When are Plumbtec Gas Ltd's accounts due?
Plumbtec Gas Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Plumbtec Gas Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Plumbtec Gas Ltd still trading?
Plumbtec Gas 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 Plumbtec Gas Ltd do?
Plumbtec Gas Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Plumbtec Gas Ltd?
Plumbtec Gas Ltd was incorporated on 30 October 2013, 12 years ago.
What is the penalty if Plumbtec Gas 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 Plumbtec Gas 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.