- Companies
- Installers
- Olsen Plumbing & Heating Ltd
Olsen Plumbing & Heating Ltd
- Company number
- 17034864
- Incorporated
- 16 Feb 2026
- Registered office
- 18 Redbrook Avenue, Caerffili, CF83 8DB
- Nature of business
- Other construction installation
Olsen Plumbing & Heating Ltd is a newly incorporated private limited company registered in Caerffili, company number 17034864, one of the UK's installation companies (insulation, lifts, shutters and similar). Its next accounts are due at Companies House on 16 November 2027, and its first CT600 is due at HMRC on 15 February 2028.
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 Olsen Plumbing & Heating Ltd is registered
The registered office is in Caerffili (CF83), in the Caerphilly local authority area, Wales. Show CF83 8DB on a map.
Other trade companies in CF83
- Owen PM LimitedBuilders
- Ecamscymru LtdMachinery repair and installation
- Bee Green Plumbing Solutions LtdPlumbers and heating engineers
- Tyga Constuction LimitedBuilders
- Grip Rip MX LtdMotor traders
- Da' Grave LtdRepair services
- First Class Cleaning Solutions LtdCleaning companies
- Vehicle Accident Repairs Solutions LtdMotor traders
What happens if Olsen Plumbing & 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 16 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 17 Nov 2027 to 16 Dec 2027 | £150 |
| 1 to 3 months late | 17 Dec 2027 to 16 Feb 2028 | £375 |
| 3 to 6 months late | 17 Feb 2028 to 16 May 2028 | £750 |
| More than 6 months late | From 17 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 17034864
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 February 2026
- Registered office
- 18 Redbrook Avenue, Caerffili, CF83 8DB
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies
Other active installation companies (insulation, lifts, shutters and similar).
Frequently asked questions
When are Olsen Plumbing & Heating Ltd's accounts due?
Olsen Plumbing & Heating Ltd's next accounts are due at Companies House by 16 November 2027 (in 399 days), covering the period to 28 February 2027.
When is Olsen Plumbing & 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 15 February 2027, due by 15 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Olsen Plumbing & Heating Ltd still trading?
Olsen Plumbing & Heating 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 Olsen Plumbing & Heating Ltd do?
Olsen Plumbing & Heating Ltd is registered under Other construction installation (SIC 43290).
How old is Olsen Plumbing & Heating Ltd?
Olsen Plumbing & Heating Ltd was incorporated on 16 February 2026, less than a year ago.
What is the penalty if Olsen Plumbing & 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 Olsen Plumbing & Heating 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.