- Companies
- Builders
- Southampton
- External Insulation and Rendering Ltd
External Insulation and Rendering Ltd
- Company number
- 15508161
- Incorporated
- 20 Feb 20242 years trading
- Registered office
- 35 Mill Road, Southampton, Hampshire, SO15 4JB
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
External Insulation and Rendering Ltd is a 2-year-old private limited company registered in Southampton, company number 15508161, one of 491 building contractors in Southampton. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
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 £4,610 (+576.3%) on the year before, to £5,410.
- Current assets of £8,398 against £2,988 owed within a year: 2.8 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2026 | £5,410 | £2,124 | £8,398 | £2,988 | 1 |
| 28 Feb 2025 | £800 | £34 | £11K | £10K | 1 |
Where External Insulation and Rendering Ltd is registered
The registered office is in Southampton (SO15), in the Southampton local authority area, South East. Show SO15 4JB on a map.
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What happens if External Insulation and Rendering Ltd 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 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 15508161
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 February 2024 (2 years ago)
- Registered office
- 35 Mill Road, Southampton, Hampshire, SO15 4JB
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 29 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 19 February 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Southampton
Other active building contractors registered in Southampton.
- Extreme Construction South Ltd2025
- F Noble & Sons Limited2011
- Farnham Concepts Limited2017
- Fernandez Group (South) Ltd2026
- Fernandez Group Ltd2024
- Fixmore Ltd2025
- Floods Plumbing & Heating Ltd2003
- FLX Construction Ltd2020
All building contractors in Southampton · All trades in Southampton · Builders across the UK
Frequently asked questions
When are External Insulation and Rendering Ltd's accounts due?
External Insulation and Rendering Ltd's next accounts are due at Companies House by 30 November 2027 (in 414 days), covering the period to 28 February 2027.
When is External Insulation and Rendering Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is External Insulation and Rendering Ltd still trading?
External Insulation and Rendering Ltd 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 External Insulation and Rendering Ltd do?
External Insulation and Rendering Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is External Insulation and Rendering Ltd?
External Insulation and Rendering Ltd was incorporated on 20 February 2024, 2 years ago.
What is the penalty if External Insulation and Rendering Ltd 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 External Insulation and Rendering Ltd 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.