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W Illingworth & Sons Limited

ActiveTotal exemption (full) accountsInstallersMorecambe
Company number
05999114
Incorporated
15 Nov 200619 years trading
Registered office
12 Tranmere Crescent, Morecambe, Lancashire, LA3 2BD
Nature of business
Other construction installation; Plastering; Other building completion and finishing
Accounts due in
79 days
31 Dec 2026
Net assets
£145K▲
+1.7% on the year before
Cash at bank
£24K▼
At 31 Mar 2025
Employees
6
Average during the year
From the Companies House register, 1 Oct 2026

W Illingworth & Sons Limited is a 19-year-old private limited company registered in Morecambe, company number 05999114, one of 9 installation companies (insulation, lifts, shutters and similar) in Morecambe. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.

Key dates

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

Accounts due
31 Dec 2026
in 79 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 169 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 80 days
9 months and 1 day after the period end
Confirmation statement
29 Nov 2026
in 47 days
Last made up to 15 Nov 2025

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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 £2,354 (+1.7%) on the year before, to £145K.
  • Net assets rose in 5 of 8 year-on-year comparisons on record.
  • Current assets of £352K against £234K owed within a year: 1.5 times cover.
  • 6 employees on average during the year.
  • Balance sheets on record for 9 years, 2017 to 2025.

Net assets by year

Net assets at each year end, 2017 to 2025£0£50K£100K31 March 2017: net assets £10K£10K201731 March 2018: net assets £929£929201831 March 2019: net assets £223£223201931 March 2020: net assets £46K£46K202031 March 2021: net assets £61K£61K202131 March 2022: net assets £33K£33K202231 March 2023: net assets £92K£92K202331 March 2024: net assets £142K£142K202431 March 2025: net assets £145K£145K2025
Net assets at each year end, 2017 to 2025£0£50K£100K31 March 2017: net assets £10K£10K'1731 March 2018: net assets £929£929'1831 March 2019: net assets £223£223'1931 March 2020: net assets £46K£46K'2031 March 2021: net assets £61K£61K'2131 March 2022: net assets £33K£33K'2231 March 2023: net assets £92K£92K'2331 March 2024: net assets £142K£142K'2431 March 2025: net assets £145K£145K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025£145K£24K£352K£234K6
31 Mar 2024£142K£31K£348K£238K6
31 Mar 2023£92K£19K£350K£296K4
31 Mar 2022£33K£244K£249K3
31 Mar 2021£61K£292K£264K3
31 Mar 2020£46K£259K£262K3
31 Mar 2019£223£231K£281K4
31 Mar 2018£929£228K£279K3
31 Mar 2017£10K£241K£286K3

Where W Illingworth & Sons Limited is registered

W Illingworth & Sons Limited's registered office on a map of the UK

The registered office is in Morecambe (LA3), in the Lancaster local authority area, North West. Show LA3 2BD on a map.

Other trade companies in LA3

What happens if W Illingworth & Sons 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 December 2026.

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

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

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 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
05999114
Status
Active
Company type
Private limited company
Incorporated
15 November 2006 (19 years ago)
Registered office
12 Tranmere Crescent, Morecambe, Lancashire, LA3 2BD
Nature of business
Other construction installation (SIC 43290)
Plastering (SIC 43310)
Other building completion and finishing (SIC 43390)
Year end
31 March (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 March 2025
Last confirmation statement
15 November 2025
Charges (mortgages)
2 outstanding of 2 registered
Previous names
Hillcrest N W Limited (until 6 Jun 2011)

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 Morecambe

Other active installation companies (insulation, lifts, shutters and similar) registered in Morecambe.

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Frequently asked questions

When are W Illingworth & Sons Limited's accounts due?

W Illingworth & Sons Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.

When is W Illingworth & Sons Limited's CT600 due?

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

Is W Illingworth & Sons Limited still trading?

W Illingworth & Sons 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 W Illingworth & Sons Limited do?

W Illingworth & Sons Limited is registered under Other construction installation (SIC 43290); Plastering (SIC 43310); Other building completion and finishing (SIC 43390).

How old is W Illingworth & Sons Limited?

W Illingworth & Sons Limited was incorporated on 15 November 2006, 19 years ago.

What is the penalty if W Illingworth & Sons 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 W Illingworth & Sons 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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