- Companies
- Installers
- London
- Solidcore Interiors Ltd
Solidcore Interiors Ltd
- Company number
- 17172811
- Incorporated
- 21 Apr 2026
- Registered office
- 9 Addison Avenue, London, N14 4AL
- Nature of business
- Other construction installation; Other building completion and finishing
Solidcore Interiors Ltd is a newly incorporated private limited company registered in London, company number 17172811, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 21 January 2028, and its first CT600 is due at HMRC on 20 April 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 Solidcore Interiors Ltd is registered
The registered office is in London (N14), in the Enfield local authority area, London. Show N14 4AL on a map.
Other trade companies in N14
- S & N Construction LtdBuilders
- Ekia Solutions LtdElectricians
- S&N Finishes LtdBuilders
- Soley London Group LtdElectricians
- Interior Build 1 LtdFinishing trades
- Niclons Engineering and Management LtdFinishing trades
- Kevlar Heating LimitedPlumbers and heating engineers
- Neonova Investments LtdProperty developers
Also registered at this address
2 other companies use the same registered office as Solidcore Interiors Ltd.
- Bek Drylining LtdSpecialist contractors
- Tdam Bek UK LtdBuilders
What happens if Solidcore Interiors 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 21 January 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 Jan 2028 to 21 Feb 2028 | £150 |
| 1 to 3 months late | 22 Feb 2028 to 21 Apr 2028 | £375 |
| 3 to 6 months late | 22 Apr 2028 to 21 Jul 2028 | £750 |
| More than 6 months late | From 22 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2028 | £200 |
| 3 months late | 30 Jul 2028 | another £200 |
| 6 months late | 30 Oct 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 17172811
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 April 2026
- Registered office
- 9 Addison Avenue, London, N14 4AL
- Nature of business
- Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390) - Year end
- 30 April (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 London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Solidcore Limited2026
- Solomon Wise Consultants Ltd2022
- Sonalis Renewables Energy Limited2025
- Sosav Ltd2025
- Soufian El Idrissi Bespoke Ltd2022
- Source Pay Ltd2019
- South London Gas Services Limited2025
- Southpole London Ltd2004
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Solidcore Interiors Ltd's accounts due?
Solidcore Interiors Ltd's next accounts are due at Companies House by 21 January 2028 (in 465 days), covering the period to 30 April 2027.
When is Solidcore Interiors 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 20 April 2027, due by 20 April 2028, and one for the period to 30 April 2027, due by 30 April 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Solidcore Interiors Ltd still trading?
Solidcore Interiors 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 Solidcore Interiors Ltd do?
Solidcore Interiors Ltd is registered under Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390).
How old is Solidcore Interiors Ltd?
Solidcore Interiors Ltd was incorporated on 21 April 2026, less than a year ago.
What is the penalty if Solidcore Interiors 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 Solidcore Interiors 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.