- Companies
- Specialist contractors
- Airdrie
- Curtis Insulation Limited
Curtis Insulation Limited
- Company number
- SC264765
- Incorporated
- 11 Mar 200422 years trading
- Registered office
- 29-30 Upper Mill Street, Airdrie, ML6 6JJ
- Nature of business
- Other specialised construction activities n.e.c.
Curtis Insulation Limited is a 22-year-old private limited company registered in Airdrie, company number SC264765, one of 39 specialist construction companies in Airdrie. 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.
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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 £113K (+127.2%) on the year before, to £202K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £914K against £796K owed within a year: 1.1 times cover.
- 20 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £202K | £184K | £914K | £796K | 20 |
| 31 Mar 2024 | £89K | £73K | £529K | £480K | 20 |
| 31 Mar 2023 | £124K | £98K | £584K | £461K | 20 |
| 31 Mar 2022 | £156K | £92K | £521K | £362K | 20 |
| 31 Mar 2021 | £136K | £132K | £519K | £465K | 20 |
| 31 Mar 2020 | £231K | £79K | £605K | £412K | 20 |
| 31 Mar 2019 | £177K | £162K | £401K | £272K | |
| 31 Mar 2018 | £107K | £143K | £354K | £297K | |
| 31 Mar 2017 | £85K | £79K | £353K | £306K | 23 |
| 31 Mar 2016 | £63K | £63K | £261K | £249K |
Where Curtis Insulation Limited is registered
The registered office is in Airdrie (ML6), in the North Lanarkshire local authority area, Scotland. Show ML6 6JJ on a map.
Other trade companies in ML6
- KM Access Solutions LtdSpecialist contractors
- MTS Roofing LtdBuilders
- Colston Joinery LtdJoiners and carpenters
- Scott Clark Electrics LtdElectricians
- Standard Rentals LtdElectricians
- Build Brothers LtdBuilders
- Murphy Roof Tiling & Roughcasting LtdSpecialist contractors
- Roots&Remembrance LtdCleaning companies
What happens if Curtis 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2028 | another 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
- SC264765
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 March 2004 (22 years ago)
- Registered office
- 29-30 Upper Mill Street, Airdrie, ML6 6JJ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 11 March 2026
- Previous names
- Curtis Insultation Limited (until 1 Mar 2019)
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.
Similar companies in Airdrie
Other active specialist construction companies registered in Airdrie.
- Denmtech Ltd2019
- Europecon Ltd2025
- FPDC Limited2026
- Frontier Fencing Contractors Ltd2024
- Gary McDonald Construction Limited2016
- Geo-Structural Ltd2014
- Handyfix Property Maintenance Ltd2025
- I & A Services (Scotland) Ltd.2014
All specialist construction companies in Airdrie · All trades in Airdrie · Specialist contractors across the UK
Frequently asked questions
When are Curtis Insulation Limited's accounts due?
Curtis Insulation Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Curtis Insulation 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 Curtis Insulation Limited still trading?
Curtis 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 Curtis Insulation Limited do?
Curtis Insulation Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Curtis Insulation Limited?
Curtis Insulation Limited was incorporated on 11 March 2004, 22 years ago.
What is the penalty if Curtis 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 Curtis Insulation Limited on Companies House for filed documents, officers and the full history.
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.