- Companies
- Plumbers and heating engineers
- Cardiff
- Martyn Carey Gas Maintenance Ltd
Martyn Carey Gas Maintenance Ltd
- Company number
- 14458632
- Incorporated
- 2 Nov 20223 years trading
- Registered office
- 7 Heol Y Bont, Rhiwbina, Cardiff, CF14 6AJ
- Nature of business
- Plumbing, heat and air-conditioning installation
Martyn Carey Gas Maintenance Ltd is a 3-year-old private limited company registered in Cardiff, company number 14458632, one of 170 plumbing and heating companies in Cardiff. 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 up £59 (+7.7%) on the year before, to £824.
- Current assets of £20K against £19K owed within a year: 1.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 | £824 | £291 | £20K | £19K | 0 |
| 31 Mar 2024 | £765 | £32 | £11K | £11K | 0 |
Where Martyn Carey Gas Maintenance Ltd is registered
The registered office is in Cardiff (CF14), in the Cardiff local authority area, Wales. Show CF14 6AJ on a map.
Other trade companies in CF14
- Velren Group LtdProperty developers
- Premierroofcare LtdRoofers
- JLG Groundworks LtdCleaning companies
- Tidyvibz LtdCleaning companies
- Ayyappa MTD LtdBuilders
- KM Phoenix Pond, Garden & General Maintenance LtdLandscapers and gardeners
- Eco Green Property Service LtdFinishing trades
- S and J Accident Repairs LtdPainters and decorators
Also registered at this address
1 other company uses the same registered office as Martyn Carey Gas Maintenance Ltd.
- Martyn Carey Plumbing & Heating LtdPlumbers and heating engineers
What happens if Martyn Carey Gas Maintenance 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 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
- 14458632
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 November 2022 (3 years ago)
- Registered office
- 7 Heol Y Bont, Rhiwbina, Cardiff, CF14 6AJ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 1 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 Cardiff
Other active plumbing and heating companies registered in Cardiff.
- Martyn Carey Plumbing & Heating Ltd2018
- MDP Mechanical Services Limited2013
- Metric Interior Systems Ltd2019
- MG Heating & Plumbing Services Ltd2026
- MLR Plumbing Limited2025
- MMK Mechanical Ltd2020
- MPH Installations Ltd2018
- MR Builder MH Ltd2024
All plumbing and heating companies in Cardiff · All trades in Cardiff · Plumbers and heating engineers across the UK
Frequently asked questions
When are Martyn Carey Gas Maintenance Ltd's accounts due?
Martyn Carey Gas Maintenance Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Martyn Carey Gas Maintenance Ltd'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 Martyn Carey Gas Maintenance Ltd still trading?
Martyn Carey Gas Maintenance 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 Martyn Carey Gas Maintenance Ltd do?
Martyn Carey Gas Maintenance Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Martyn Carey Gas Maintenance Ltd?
Martyn Carey Gas Maintenance Ltd was incorporated on 2 November 2022, 3 years ago.
What is the penalty if Martyn Carey Gas Maintenance 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 Martyn Carey Gas Maintenance 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.