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Specialist Insulation Maintenance Limited

ActiveMicro-entity accountsSpecialist contractorsScunthorpe
Company number
06056298
Incorporated
17 Jan 200719 years trading
Registered office
Unit 1A Mercia Way, Foxhills Industrial Estate, Scunthorpe, North Lincolnshire, DN15 8RE
Nature of business
Other specialised construction activities n.e.c.
Accounts due in
383 days
31 Oct 2027
Net assets
£168K▲
+8.8% on the year before
Employees
7
Average during the year
From the Companies House register, 1 Oct 2026

Specialist Insulation Maintenance Limited is a 19-year-old private limited company registered in Scunthorpe, company number 06056298, one of 64 specialist construction companies in Scunthorpe. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.

Key dates

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

Accounts due
31 Oct 2027
in 383 days
For the period to 31 Jan 2027
CT600 due
31 Jan 2028
in 475 days
Period 1 Feb 2026 to 31 Jan 2027
Corporation tax payment
1 Nov 2027
in 384 days
9 months and 1 day after the period end
Confirmation statement
3 Nov 2026
in 21 days
Last made up to 20 Oct 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 £14K (+8.8%) on the year before, to £168K.
  • Net assets rose in 6 of 9 year-on-year comparisons on record.
  • Current assets of £317K against £171K owed within a year: 1.9 times cover.
  • 7 employees on average, up from 6 the year before.
  • Balance sheets on record for 10 years, 2017 to 2026.

Net assets by year

Net assets at each year end, 2017 to 2026£0£100K31 January 2017: net assets £164K£164K201731 January 2018: net assets £163K£163K201831 January 2019: net assets £166K£166K201931 January 2020: net assets £142K£142K202031 January 2021: net assets £97K£97K202131 January 2022: net assets £99K£99K202231 January 2023: net assets £116K£116K202331 January 2024: net assets £137K£137K202431 January 2025: net assets £154K£154K202531 January 2026: net assets £168K£168K2026
Net assets at each year end, 2017 to 2026£0£100K31 January 2017: net assets £164K£164K'1731 January 2018: net assets £163K£163K'1831 January 2019: net assets £166K£166K'1931 January 2020: net assets £142K£142K'2031 January 2021: net assets £97K£97K'2131 January 2022: net assets £99K£99K'2231 January 2023: net assets £116K£116K'2331 January 2024: net assets £137K£137K'2431 January 2025: net assets £154K£154K'2531 January 2026: net assets £168K£168K'26
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Jan 2026£168K£317K£171K7
31 Jan 2025£154K£180K£140K6
31 Jan 2024£137K£210K£176K7
31 Jan 2023£116K£152K£100K7
31 Jan 2022£99K£118K£117K9
31 Jan 2021£97K£167K£148K7
31 Jan 2020£142K£137K£83K
31 Jan 2019£166K£147K£101K
31 Jan 2018£163K£174K£135K
31 Jan 2017£164K£172K£98K

Where Specialist Insulation Maintenance Limited is registered

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

The registered office is in Scunthorpe (DN15), in the North Lincolnshire local authority area, Yorkshire and The Humber. Show DN15 8RE on a map.

Other trade companies in DN15

What happens if Specialist Insulation Maintenance 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 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Nov 2027 to 30 Nov 2027£150
1 to 3 months late1 Dec 2027 to 31 Jan 2028£375
3 to 6 months late1 Feb 2028 to 30 Apr 2028£750
More than 6 months lateFrom 1 May 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Feb 2028£200
3 months late30 Apr 2028another £200
6 months late31 Jul 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Jan 2029another 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
06056298
Status
Active
Company type
Private limited company
Incorporated
17 January 2007 (19 years ago)
Registered office
Unit 1A Mercia Way, Foxhills Industrial Estate, Scunthorpe, North Lincolnshire, DN15 8RE
Nature of business
Other specialised construction activities n.e.c. (SIC 43999)
Year end
31 January (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 January 2026
Last confirmation statement
20 October 2025

Filing notes for specialist construction companies

Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.

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Frequently asked questions

When are Specialist Insulation Maintenance Limited's accounts due?

Specialist Insulation Maintenance Limited's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.

When is Specialist Insulation Maintenance Limited's CT600 due?

The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.

Is Specialist Insulation Maintenance Limited still trading?

Specialist Insulation Maintenance 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 Specialist Insulation Maintenance Limited do?

Specialist Insulation Maintenance Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).

How old is Specialist Insulation Maintenance Limited?

Specialist Insulation Maintenance Limited was incorporated on 17 January 2007, 19 years ago.

What is the penalty if Specialist Insulation Maintenance 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 Specialist Insulation Maintenance 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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