- Companies
- Installers
- MTL Groundworks Limited
MTL Groundworks Limited
- Company number
- 16930337
- Incorporated
- 24 Dec 2025
- Registered office
- Plashoodig Farm, Llangolman, Clynderwen, Pembrokeshire, SA66 7SG
- Nature of business
- Other construction installation
MTL Groundworks Limited is a newly incorporated private limited company registered in Clynderwen, company number 16930337, one of the UK's installation companies (insulation, lifts, shutters and similar). Its next accounts are due at Companies House on 24 September 2027, and its first CT600 is due at HMRC on 23 December 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.
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Where MTL Groundworks Limited is registered
The registered office is in Clynderwen (SA66), in the Pembrokeshire local authority area, Wales. Show SA66 7SG on a map.
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What happens if MTL Groundworks Limited 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 24 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Sep 2027 to 24 Oct 2027 | £150 |
| 1 to 3 months late | 25 Oct 2027 to 24 Dec 2027 | £375 |
| 3 to 6 months late | 25 Dec 2027 to 24 Mar 2028 | £750 |
| More than 6 months late | From 25 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 16930337
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 December 2025
- Registered office
- Plashoodig Farm, Llangolman, Clynderwen, Pembrokeshire, SA66 7SG
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 December (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 MTL Groundworks Limited's accounts due?
MTL Groundworks Limited's next accounts are due at Companies House by 24 September 2027 (in 346 days), covering the period to 31 December 2026.
When is MTL Groundworks Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 23 December 2026, due by 23 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is MTL Groundworks Limited still trading?
MTL Groundworks Limited 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 MTL Groundworks Limited do?
MTL Groundworks Limited is registered under Other construction installation (SIC 43290).
How old is MTL Groundworks Limited?
MTL Groundworks Limited was incorporated on 24 December 2025, less than a year ago.
What is the penalty if MTL Groundworks Limited 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 MTL Groundworks Limited 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.