Colgas Ltd
- Company number
- 16225025
- Incorporated
- 3 Feb 20251 year trading
- Registered office
- 71 Conway Road, Penlan, Swansea, SA5 7AU
- Nature of business
- Plumbing, heat and air-conditioning installation
Colgas Ltd is a 1-year-old private limited company registered in Swansea, company number 16225025, one of 148 plumbing and heating companies in Swansea. Its next accounts are due at Companies House on 3 November 2026, and its first CT600 is due at HMRC on 2 February 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?
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Where Colgas Ltd is registered
The registered office is in Swansea (SA5), in the Swansea local authority area, Wales. Show SA5 7AU on a map.
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Also registered at this address
1 other company uses the same registered office as Colgas Ltd.
- Fresh Start Property Care LtdCleaning companies
What happens if Colgas 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 3 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 4 Nov 2026 to 3 Dec 2026 | £150 |
| 1 to 3 months late | 4 Dec 2026 to 3 Feb 2027 | £375 |
| 3 to 6 months late | 4 Feb 2027 to 3 May 2027 | £750 |
| More than 6 months late | From 4 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 16225025
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 February 2025 (1 year ago)
- Registered office
- 71 Conway Road, Penlan, Swansea, SA5 7AU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 10 February 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.
- Crowsfoot Heating Services Ltd2022
- Dancer Engineering Services Limited2024
- DJP Plumbing and Heating Ltd.2021
- Duramax Plumbing Limited2025
- DW-Air Limited2018
- Ecore Energy Solutions Ltd2024
- Ecotech Installations Ltd2024
- Eidolon Renovations Ltd2026
All plumbing and heating companies in Swansea · All trades in Swansea · Plumbers and heating engineers across the UK
Frequently asked questions
When are Colgas Ltd's accounts due?
Colgas Ltd's next accounts are due at Companies House by 3 November 2026 (in 21 days), covering the period to 28 February 2026.
When is Colgas 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 2 February 2026, due by 2 February 2027, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Colgas Ltd still trading?
Colgas 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 Colgas Ltd do?
Colgas Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Colgas Ltd?
Colgas Ltd was incorporated on 3 February 2025, 1 year ago.
What is the penalty if Colgas 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 Colgas 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.