- Companies
- Installers
- Blackwood
- Hammer Core Ltd
Hammer Core Ltd
- Company number
- 17057346
- Incorporated
- 26 Feb 2026
- Registered office
- 6 Heath Road, Pontllanfraith, Blackwood, NP12 2PB
- Nature of business
- Other construction installation
Hammer Core Ltd is a newly incorporated private limited company registered in Blackwood, company number 17057346, one of 20 installation companies (insulation, lifts, shutters and similar) in Blackwood. Its next accounts are due at Companies House on 26 November 2027, and its first CT600 is due at HMRC on 25 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.
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Where Hammer Core Ltd is registered
The registered office is in Blackwood (NP12), in the Caerphilly local authority area, Wales. Show NP12 2PB on a map.
Other trade companies in NP12
- Hohm Property Group LtdProperty developers
- R&C Mechanics LimitedMechanics and garages
- M & R Property Solutions (SW) LimitedFinishing trades
- JLH Scaffolding LtdScaffolders
- SM Contracting SW LtdBuilders
- Top Notch Carpentry Services LimitedInstallers
- Cardiff Bathrooms LtdFinishing trades
- CB Brickwork & Building LtdSpecialist contractors
Also registered at this address
1 other company uses the same registered office as Hammer Core Ltd.
- Grankoak Developments LtdProperty developers
What happens if Hammer Core 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 26 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 27 Nov 2027 to 26 Dec 2027 | £150 |
| 1 to 3 months late | 27 Dec 2027 to 26 Feb 2028 | £375 |
| 3 to 6 months late | 27 Feb 2028 to 26 May 2028 | £750 |
| More than 6 months late | From 27 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
- 17057346
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 February 2026
- Registered office
- 6 Heath Road, Pontllanfraith, Blackwood, NP12 2PB
- 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 in Blackwood
Other active installation companies (insulation, lifts, shutters and similar) registered in Blackwood.
- Live & Direct Utilities Limited2024
- LJF Windows Ltd2024
- Nesture Limited2015
- R L Landscaping and Driveways Limited2026
- S.A.T Utilities Ltd2017
- Sers (Solar & Renewable Technologies) Wales Limited2003
- Top Notch Carpentry Services Limited2026
- A Lane & Associates Limited2005
All installation companies (insulation, lifts, shutters and similar) in Blackwood · All trades in Blackwood · Installers across the UK
Frequently asked questions
When are Hammer Core Ltd's accounts due?
Hammer Core Ltd's next accounts are due at Companies House by 26 November 2027 (in 409 days), covering the period to 28 February 2027.
When is Hammer Core 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 25 February 2027, due by 25 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 Hammer Core Ltd still trading?
Hammer Core 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 Hammer Core Ltd do?
Hammer Core Ltd is registered under Other construction installation (SIC 43290).
How old is Hammer Core Ltd?
Hammer Core Ltd was incorporated on 26 February 2026, less than a year ago.
What is the penalty if Hammer Core 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 Hammer Core 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.