- Companies
- Plumbers and heating engineers
- Brecon
- Mains Gas Limited
Mains Gas Limited
- Company number
- 12282701
- Incorporated
- 25 Oct 20196 years trading
- Registered office
- 8 Ship Street, Brecon, Powys, Ship Street, Brecon, LD3 9AF
- Nature of business
- Plumbing, heat and air-conditioning installation
Mains Gas Limited is a 6-year-old private limited company registered in Brecon, company number 12282701, one of 12 plumbing and heating companies in Brecon. 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 £17K (+15.1%) on the year before, to £130K.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £145K against £82K owed within a year: 1.8 times cover.
- 9 employees on average, up from -9 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £130K | £145K | £82K | 9 | |
| 31 Oct 2024 | £113K | £128K | £27K | -9 | |
| 31 Oct 2023 | £157K | £86K | £236K | £65K | 6 |
| 31 Oct 2022 | £70K | £61K | £106K | £16K | 6 |
| 31 Oct 2021 | £29K | £14K | £69K | £8,647 | 6 |
| 31 Oct 2020 | £13K | £29K | £51K | £8,468 | 6 |
Public contracts won
Mains Gas Limited has one public sector contract award on record (2026). Source: Contracts Finder and Find a Tender award notices. For all of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Mid and West Wales Fire and Rescue Authority | Servicing, Maintenance and Replacement of Heating and Catering Equipment | Ceiling, not shown | 7 Jul 2026 |
Where Mains Gas Limited is registered
The registered office is in Brecon (LD3), in the Powys local authority area, Wales. Show LD3 9AF on a map.
Other trade companies in LD3
- Radnor Renewables LimitedPlumbers and heating engineers
- Wye Valley Plumbing Heating Renewables LimitedPlumbers and heating engineers
- MDR Enterprises LtdBuilders
- Calon Vans LimitedMechanics and garages
- LP Trucks (Hereford) LimitedMechanics and garages
- Seer Civils LimitedBuilders
- Koyo Cars LtdMotor traders
- WW Automotive Repairs LtdMechanics and garages
What happens if Mains 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 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
- 12282701
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 October 2019 (6 years ago)
- Registered office
- 8 Ship Street, Brecon, Powys, Ship Street, Brecon, LD3 9AF
- 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
- 24 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 Brecon
Other active plumbing and heating companies registered in Brecon.
- NSP Plumbing Services Ltd2020
- Phil Williams Plumbing Limited2010
- Radnor Renewables Limited2026
- Rodell & Jones Ltd.2012
- The Fire and Stove Shop Ltd2011
- Wye Valley Plumbing Heating Renewables Limited2026
- Beacon Plumbing and Property Ltd2025
- Blackwood Plumbing & Heating Limited2013
All plumbing and heating companies in Brecon · All trades in Brecon · Plumbers and heating engineers across the UK
Frequently asked questions
When are Mains Gas Limited's accounts due?
Mains Gas Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Mains Gas Limited'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 Mains Gas Limited still trading?
Mains 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 Mains Gas Limited do?
Mains Gas Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Mains Gas Limited?
Mains Gas Limited was incorporated on 25 October 2019, 6 years ago.
Has Mains Gas Limited won public sector contracts?
Yes. Mains Gas Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Mid and West Wales Fire and Rescue Authority.
What is the penalty if Mains 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 Mains 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.