- Companies
- Plumbers and heating engineers
- Carmarthen
- Windsor Plumbing and Heating Ltd
Windsor Plumbing and Heating Ltd
- Company number
- 16649905
- Incorporated
- 14 Aug 20251 year trading
- Registered office
- Fairways, Pendine, Carmarthen, SA33 4PA
- Nature of business
- Plumbing, heat and air-conditioning installation
Windsor Plumbing and Heating Ltd is a 1-year-old private limited company registered in Carmarthen, company number 16649905, one of 30 plumbing and heating companies in Carmarthen. Its next accounts are due at Companies House on 14 May 2027, and its first CT600 is due at HMRC on 13 August 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Windsor Plumbing and Heating LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Where Windsor Plumbing and Heating Ltd is registered
The registered office is in Carmarthen (SA33), in the Carmarthenshire local authority area, Wales. Show SA33 4PA on a map.
Other trade companies in SA33
- Ajm Energy Solutions LtdElectricians
- RSJS Renovations LtdBuilders
- Blanchart Interiors LtdFinishing trades
- Cathedral City Cleaning LtdCleaning companies
- Zavaschi LimitedCivil engineering
- P & K Kitchens LimitedFinishing trades
- MDJ Carpentry LimitedJoiners and carpenters
- Preston Plumbing Heating LtdPlumbers and heating engineers
Shared registered office
55 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 Windsor Plumbing and Heating 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 14 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 15 May 2027 to 14 Jun 2027 | £150 |
| 1 to 3 months late | 15 Jun 2027 to 14 Aug 2027 | £375 |
| 3 to 6 months late | 15 Aug 2027 to 14 Nov 2027 | £750 |
| More than 6 months late | From 15 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 16649905
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 August 2025 (1 year ago)
- Registered office
- Fairways, Pendine, Carmarthen, SA33 4PA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
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 Carmarthen
Other active plumbing and heating companies registered in Carmarthen.
- Ynni Heating Ltd2023
- A Perry Plumbing and Heating Ltd2026
- Aled Evans Plumbing & Heating Ltd.2025
- Amgen Heating Ltd2023
- Ark Plumbing Ltd2023
- Birdshill Biomass Ltd.2015
- Carmarthen Refrigeration Limited2003
- Chaps (HPS) Wales Ltd2021
All plumbing and heating companies in Carmarthen · All trades in Carmarthen · Plumbers and heating engineers across the UK
Frequently asked questions
When are Windsor Plumbing and Heating Ltd's accounts due?
Windsor Plumbing and Heating Ltd's next accounts are due at Companies House by 14 May 2027 (in 213 days), covering the period to 31 August 2026.
When is Windsor Plumbing and Heating Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 13 August 2026, due by 13 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Windsor Plumbing and Heating Ltd still trading?
Windsor Plumbing and Heating Ltd is listed as active on the Companies House register (checked 13 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 Windsor Plumbing and Heating Ltd do?
Windsor Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Windsor Plumbing and Heating Ltd?
Windsor Plumbing and Heating Ltd was incorporated on 14 August 2025, 1 year ago.
What is the penalty if Windsor Plumbing and Heating 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 Windsor Plumbing and Heating Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.