Ao Gas Ltd
- Company number
- 11943762
- Incorporated
- 12 Apr 20197 years trading
- Registered office
- 10-11 Caer Street, Swansea, SA1 3PP
- Nature of business
- Plumbing, heat and air-conditioning installation
Ao Gas Ltd is a 7-year-old private limited company registered in Swansea, company number 11943762, one of 148 plumbing and heating companies in Swansea. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £10K (-84.2%) on the year before, to £1,920.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £35K against £25K owed within a year: 1.4 times cover.
- 2 employees on average, down from 3 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 |
|---|---|---|---|---|---|
| 30 Apr 2025 | £1,920 | £35K | £25K | 2 | |
| 30 Apr 2024 | £12K | £39K | £31K | 3 | |
| 30 Apr 2023 | £17K | £40K | £31K | 2 | |
| 30 Apr 2022 | £21K | £27K | £9,634 | 3 | |
| 30 Apr 2021 | £317 | £3,633 | £11K | 2 | |
| 30 Apr 2020 | £1 |
Where Ao Gas Ltd is registered
The registered office is in Swansea (SA1), in the Swansea local authority area, Wales. Show SA1 3PP on a map.
Other trade companies in SA1
- JDS Ringside Customs LtdRepair services
- D & M Carpentry and Construction LimitedCivil engineering
- Westway Window Systems LimitedJoiners and carpenters
- International Classic Car Sales LtdMotor traders
- Edefec LtdBuilders
- Swansea Scaffolding Services LtdScaffolders
- Lou's Paint and Finish LimitedPainters and decorators
- Mesa Property Development LtdProperty developers
Shared registered office
50 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Ao 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 11943762
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 April 2019 (7 years ago)
- Registered office
- 10-11 Caer Street, Swansea, SA1 3PP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 11 April 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.
- Aqua Revival Bathrooms Ltd2025
- Ar Plumbing, Heating & Gas Ltd2021
- Asw Energy Services Limited2019
- Blue Jays Home Services Ltd2026
- Brooksmith Air Limited2026
- Ca Jones & Son Limited2006
- Cambriani Gas Ltd2019
- Cambriani Plumbing & Heating Ltd2021
All plumbing and heating companies in Swansea · All trades in Swansea · Plumbers and heating engineers across the UK
Frequently asked questions
When are Ao Gas Ltd's accounts due?
Ao Gas Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Ao Gas Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Ao Gas Ltd still trading?
Ao 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 Ao Gas Ltd do?
Ao Gas Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ao Gas Ltd?
Ao Gas Ltd was incorporated on 12 April 2019, 7 years ago.
What is the penalty if Ao 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 Ao 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.