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- Celtic Interior Construction Limited
Company profile · Joiners and carpenters
Celtic Interior Construction Limited
Celtic Interior Construction Limited is a 19-year-old private limited company registered in Holywell, company number 06050531, one of the UK's joinery companies. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 January 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Celtic Interior Construction Limited over the years
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £11K (-569.6%) on the year before, to -£9,006.
- Net assets rose in 1 of 9 year-on-year comparisons on record.
- Current assets of £1,235 against £210K owed within a year: 0.0 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | -£9,006 | £531 | £1,235 | £210K | 0 |
| 31 Jan 2024 | £1,918 | £14K | £15K | £14K | 0 |
| 31 Jan 2023 | £9,773 | £14K | £15K | £8,666 | 0 |
| 31 Jan 2022 | £4,790 | £4,356 | £4,447 | £7,140 | 0 |
| 31 Jan 2021 | £16K | £9,966 | £10K | £6,136 | 0 |
| 31 Jan 2020 | £33K | £23K | £23K | £7,332 | 0 |
| 31 Jan 2019 | £38K | £41K | £41K | £5,197 | |
| 31 Jan 2018 | £46K | £47K | £49K | £6,822 | |
| 31 Jan 2017 | £64K | £56K | £64K | £4,825 | |
| 31 Jan 2016 | £65K | £103K | £104K | £39K |
Where Celtic Interior Construction Limited is registered
The registered office is in Holywell (CH8), in the Flintshire local authority area, Wales. Show CH8 8JG on a map.
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What happens if Celtic Interior Construction 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 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 06050531
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 January 2007 (19 years ago)
- Registered office
- Borthwen, Rhes- Y- Cae, Holywell, Flintshire, CH8 8JG
- Nature of business
- Joinery installation (SIC 43320)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 28 November 2025
Filing notes for joinery companies
Joinery companies can carry stock and work in progress at the year end, especially bespoke workshop work, and that figure moves the profit for the year.
Similar companies in Holywell
Other active joinery companies registered in Holywell.
All joinery companies in Holywell · All trades in Holywell · Joiners and carpenters across the UK
Frequently asked questions
When are Celtic Interior Construction Limited's accounts due?
Celtic Interior Construction Limited's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is Celtic Interior Construction Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Celtic Interior Construction Limited still trading?
Celtic Interior Construction 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 Celtic Interior Construction Limited do?
Celtic Interior Construction Limited is registered under Joinery installation (SIC 43320).
How old is Celtic Interior Construction Limited?
Celtic Interior Construction Limited was incorporated on 12 January 2007, 19 years ago.
What is the penalty if Celtic Interior Construction 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 Celtic Interior Construction 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.