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  2. Machinery repair and installation
  3. Newcastle upon Tyne
  4. McGuinness Insulation Limited

McGuinness Insulation Limited

Company number
03470142
Incorporated
24 Nov 199728 years trading
Registered office
Kinnair & Company, Aston House, Redburn Road, Newcastle upon Tyne, Tyne & Wear, NE5 1NB
Nature of business
Repair of machinery
Accounts due in
138 days
28 Feb 2027
Net assets
£158K▲
+1.0% on the year before
Employees
4
Average during the year
From the Companies House register, 1 Oct 2026

McGuinness Insulation Limited is a 28-year-old private limited company registered in Newcastle upon Tyne, company number 03470142, one of 97 machinery repair and installation companies in Newcastle upon Tyne. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.

Key dates

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

Accounts due
28 Feb 2027
in 138 days
For the period to 31 May 2026
CT600 due
31 May 2027
in 230 days
Period 1 Jun 2025 to 31 May 2026
Corporation tax payment
1 Mar 2027
in 139 days
9 months and 1 day after the period end
Confirmation statement
8 Dec 2026
in 56 days
Last made up to 24 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 £1,525 (+1%) on the year before, to £158K.
  • Net assets rose in 7 of 9 year-on-year comparisons on record.
  • Current assets of £184K against £77K owed within a year: 2.4 times cover.
  • 4 employees on average during the year.
  • Balance sheets on record for 10 years, 2017 to 2025.

Net assets by year

Net assets at each year end, 2017 to 2025£0£100K31 May 2017: net assets £28K£28K201730 May 2018: net assets £49K£49K201831 May 2018: net assets £49K£49K201831 May 2019: net assets £71K£71K201931 May 2020: net assets £85K£85K202031 May 2021: net assets £104K£104K202131 May 2022: net assets £103K£103K202231 May 2023: net assets £127K£127K202331 May 2024: net assets £156K£156K202431 May 2025: net assets £158K£158K2025
Net assets at each year end, 2017 to 2025£0£100K31 May 2017: net assets £28K£28K'1730 May 2018: net assets £49K£49K'1831 May 2018: net assets £49K£49K'1831 May 2019: net assets £71K£71K'1931 May 2020: net assets £85K£85K'2031 May 2021: net assets £104K£104K'2131 May 2022: net assets £103K£103K'2231 May 2023: net assets £127K£127K'2331 May 2024: net assets £156K£156K'2431 May 2025: net assets £158K£158K'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 May 2025£158K£184K£77K4
31 May 2024£156K£212K£95K4
31 May 2023£127K£150K£59K4
31 May 2022£103K£141K£69K4
31 May 2021£104K£176K£102K4
31 May 2020£85K£155K£85K4
31 May 2019£71K£131K£72K
31 May 2018£49K£112K£75K
30 May 2018£49K£112K£75K
31 May 2017£28K£67K£44K

Who runs and owns McGuinness Insulation Limited

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

Officer

NameRoleAppointed
M*** M***DirectorJul 1999
8 former officers
NameRoleAppointedLeft
M*** M***SecretaryNov 1997Jul 1999
J*** M***SecretaryFeb 2008Dec 2011
S*** M***SecretaryJul 1999Feb 2008
Key Legal Services (Secretarial) LimitedCorporate Nominee SecretaryNov 1997Nov 1997
M*** M***DirectorNov 1997Jul 1999
S*** M***DirectorJul 1999Dec 2007
G*** M***DirectorNov 1997Jul 1999
Key Legal Services (Nominees) LimitedNominee director (company)Nov 1997Nov 1997

Person with significant control

Individual · since Apr 2016
M*** M***
Owns 75% or more of the shares

Charges (secured borrowing)

1 of 1 registered charge is outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.

LenderStatusRegistered
HSBC Bank PLCOutstandingJan 2008

Where McGuinness Insulation Limited is registered

McGuinness Insulation Limited's registered office on a map of the UK

The registered office is in Newcastle upon Tyne (NE5), in the Newcastle upon Tyne local authority area, North East. Show NE5 1NB on a map.

Other trade companies in NE5

What happens if McGuinness Insulation 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 28 February 2027.

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

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

HMRC (CT600)FromPenalty
1 day late1 Jun 2027£200
3 months late31 Aug 2027another £200
6 months late30 Nov 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 May 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
03470142
Status
Active
Company type
Private limited company
Incorporated
24 November 1997 (28 years ago)
Registered office
Kinnair & Company, Aston House, Redburn Road, Newcastle upon Tyne, Tyne & Wear, NE5 1NB
Nature of business
Repair of machinery (SIC 33120)
Year end
31 May (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 May 2025
Last confirmation statement
24 November 2025
Charges (mortgages)
1 outstanding of 1 registered

Filing notes for machinery repair and installation companies

Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.

Similar companies in Newcastle upon Tyne

Other active machinery repair and installation companies registered in Newcastle upon Tyne.

All machinery repair and installation companies in Newcastle upon Tyne · All trades in Newcastle upon Tyne · Machinery repair and installation across the UK

Frequently asked questions

When are McGuinness Insulation Limited's accounts due?

McGuinness Insulation Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.

When is McGuinness Insulation Limited's CT600 due?

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

Is McGuinness Insulation Limited still trading?

McGuinness Insulation 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 McGuinness Insulation Limited do?

McGuinness Insulation Limited is registered under Repair of machinery (SIC 33120).

How old is McGuinness Insulation Limited?

McGuinness Insulation Limited was incorporated on 24 November 1997, 28 years ago.

Who runs McGuinness Insulation Limited?

McGuinness Insulation Limited has 1 active director, the longest-serving appointed in Jul 1999. Their names and service addresses are on the Companies House register.

Who owns McGuinness Insulation Limited?

One person or company has significant control of McGuinness Insulation Limited: an individual (owns 75% or more of the shares).

What is the penalty if McGuinness Insulation 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 McGuinness Insulation 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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