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  4. Castle Glass & Windows Limited

Castle Glass & Windows Limited

ActiveTotal exemption (full) accountsGlaziersGerrards Cross
Company number
05729175
Incorporated
3 Mar 200620 years trading
Registered office
C/O Atlas Accountancy Ltd, Suite 7, Europa House, 11 Marsham Way, Gerrards Cross, SL9 8BQ
Nature of business
Glazing
Accounts due in
352 days
30 Sep 2027
Net assets
£976K
At 31 Dec 2025
Cash at bank
£762K
At 31 Dec 2025
Employees
5
Average during the year
From the Companies House register, 1 Oct 2026

Castle Glass & Windows Limited is a 20-year-old private limited company registered in Gerrards Cross, company number 05729175, one of 5 glazing companies in Gerrards Cross. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.

Key dates

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

Accounts due
30 Sep 2027
in 352 days
For the period to 31 Dec 2026
CT600 due
31 Dec 2027
in 444 days
Period 1 Jan 2026 to 31 Dec 2026
Corporation tax payment
1 Oct 2027
in 353 days
9 months and 1 day after the period end
Confirmation statement
10 Mar 2027
in 148 days
Last made up to 24 Feb 2026

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Finances

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 up £440K (+82.2%) on the year before, to £976K.
  • Net assets rose in 8 of 9 year-on-year comparisons on record.
  • Current assets of £926K against £474K owed within a year: 2.0 times cover.
  • 5 employees on average, up from -5 the year before.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£500K30 September 2016: net assets £210K£210K201630 September 2017: net assets £231K£231K201730 September 2018: net assets £320K£320K201830 September 2019: net assets £321K£321K201930 September 2020: net assets £354K£354K202030 September 2021: net assets £360K£360K202130 September 2022: net assets £512K£512K202230 September 2023: net assets £560K£560K202330 September 2024: net assets £536K£536K202431 December 2025: net assets £976K£976K2025
Net assets at each year end, 2016 to 2025£0£500K30 September 2016: net assets £210K£210K'1630 September 2017: net assets £231K£231K'1730 September 2018: net assets £320K£320K'1830 September 2019: net assets £321K£321K'1930 September 2020: net assets £354K£354K'2030 September 2021: net assets £360K£360K'2130 September 2022: net assets £512K£512K'2230 September 2023: net assets £560K£560K'2330 September 2024: net assets £536K£536K'2431 December 2025: net assets £976K£976K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2025£976K£762K£926K£474K5
30 Sep 2024£536K£560K£768K£271K-5
30 Sep 2023£560K£420K£768K£231K5
30 Sep 2022£512K£680K£835K£329K5
30 Sep 2021£360K£345K£522K£172K5
30 Sep 2020£354K£249K£538K£198K5
30 Sep 2019£321K£185K£453K£142K4
30 Sep 2018£320K£268K£554K£253K4
30 Sep 2017£231K£211K£315K£116K4
30 Sep 2016£210K£223K£344K£140K

Who runs and owns Castle Glass & Windows Limited

From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.

Officers (3)

NameRoleAppointed
B*** C***DirectorMar 2006
G*** C***DirectorMar 2006
G*** C***SecretaryMar 2006
2 former officers
NameRoleAppointedLeft
Abergan Reed Nominees LtdCorporate Nominee SecretaryMar 2006Mar 2006
Abergan Reed LimitedNominee director (company)Mar 2006Mar 2006

People with significant control (2)

Individual · since Jul 2016
G*** C***
Owns 25% to 50% of the shares
Individual · since Jul 2016
B*** C***
Owns 25% to 50% of the shares

Where Castle Glass & Windows Limited is registered

Castle Glass & Windows Limited's registered office on a map of the UK

The registered office is in Gerrards Cross (SL9), in the Buckinghamshire local authority area, South East. Show SL9 8BQ on a map.

Other trade companies in SL9

Also registered at this address

23 other companies use the same registered office as Castle Glass & Windows Limited.

What happens if Castle Glass & Windows 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 30 September 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Oct 2027 to 31 Oct 2027£150
1 to 3 months late1 Nov 2027 to 31 Dec 2027£375
3 to 6 months late1 Jan 2028 to 31 Mar 2028£750
More than 6 months lateFrom 1 Apr 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Jan 2028£200
3 months late31 Mar 2028another £200
6 months late30 Jun 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 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
05729175
Status
Active
Company type
Private limited company
Incorporated
3 March 2006 (20 years ago)
Registered office
C/O Atlas Accountancy Ltd, Suite 7, Europa House, 11 Marsham Way, Gerrards Cross, SL9 8BQ
Nature of business
Glazing (SIC 43342)
Year end
31 December (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 December 2025
Last confirmation statement
24 February 2026

Filing notes for glazing companies

Glazing companies often take deposits before work starts. Deposits held at the year end are a liability, not income, until the job is done.

Similar companies in Gerrards Cross

Other active glazing companies registered in Gerrards Cross.

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Frequently asked questions

When are Castle Glass & Windows Limited's accounts due?

Castle Glass & Windows Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.

When is Castle Glass & Windows Limited's CT600 due?

The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.

Is Castle Glass & Windows Limited still trading?

Castle Glass & Windows 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 Castle Glass & Windows Limited do?

Castle Glass & Windows Limited is registered under Glazing (SIC 43342).

How old is Castle Glass & Windows Limited?

Castle Glass & Windows Limited was incorporated on 3 March 2006, 20 years ago.

Who runs Castle Glass & Windows Limited?

Castle Glass & Windows Limited has 2 active directors, the longest-serving appointed in Mar 2006. Their names and service addresses are on the Companies House register.

Who owns Castle Glass & Windows Limited?

2 people or companies have significant control of Castle Glass & Windows Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).

What is the penalty if Castle Glass & Windows 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 Castle Glass & Windows Limited 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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