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  4. Castle Installation Services Ltd

Castle Installation Services Ltd

ActiveMicro-entity accountsFinishing tradesDerby
Company number
15363615
Incorporated
20 Dec 20232 years trading
Registered office
Charlotte House Stanier Way, The Wyvern Business Park, Derby, DE21 6BF
Nature of business
Other building completion and finishing
Accounts due in
110 days
31 Jan 2027
Net assets
-£11K
At 30 Apr 2025
Employees
0
Average during the year
From the Companies House register, 1 Oct 2026

Castle Installation Services Ltd is a 2-year-old private limited company registered in Derby, company number 15363615, one of 147 building finishing companies in Derby. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Jan 2027
in 110 days
For the period to 30 Apr 2026
CT600 due
30 Apr 2027
in 199 days
Period 1 May 2025 to 30 Apr 2026
Corporation tax payment
1 Feb 2027
in 111 days
9 months and 1 day after the period end
Confirmation statement
2 Jan 2027
in 81 days
Last made up to 19 Dec 2025

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Financial snapshot, 2025

From the balance sheet at 30 April 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.

Net assets
-£11K
Current assets
£12K
Employees
0
Average during the year, including directors

Where Castle Installation Services Ltd is registered

Castle Installation Services Ltd's registered office on a map of the UK

The registered office is in Derby (DE21), in the Derby local authority area, East Midlands. Show DE21 6BF on a map.

Other trade companies in DE21

Also registered at this address

23 other companies use the same registered office as Castle Installation Services Ltd.

What happens if Castle Installation Services 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 31 January 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Feb 2027 to 28 Feb 2027£150
1 to 3 months late1 Mar 2027 to 30 Apr 2027£375
3 to 6 months late1 May 2027 to 31 Jul 2027£750
More than 6 months lateFrom 1 Aug 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 May 2027£200
3 months late30 Jul 2027another £200
6 months late30 Oct 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late30 Apr 2028another 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
15363615
Status
Active
Company type
Private limited company
Incorporated
20 December 2023 (2 years ago)
Registered office
Charlotte House Stanier Way, The Wyvern Business Park, Derby, DE21 6BF
Nature of business
Other building completion and finishing (SIC 43390)
Year end
30 April (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
30 April 2025
Last confirmation statement
19 December 2025

Filing notes for building finishing companies

Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.

Similar companies in Derby

Other active building finishing companies registered in Derby.

All building finishing companies in Derby · All trades in Derby · Finishing trades across the UK

Frequently asked questions

When are Castle Installation Services Ltd's accounts due?

Castle Installation Services Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.

When is Castle Installation Services Ltd's CT600 due?

The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.

Is Castle Installation Services Ltd still trading?

Castle Installation Services 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 Castle Installation Services Ltd do?

Castle Installation Services Ltd is registered under Other building completion and finishing (SIC 43390).

How old is Castle Installation Services Ltd?

Castle Installation Services Ltd was incorporated on 20 December 2023, 2 years ago.

What is the penalty if Castle Installation Services 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 Castle Installation Services Ltd on Companies House for filed documents, officers and the full history.

Report an error on this page

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.

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