- Companies
- Groundworks and demolition
- Castle Cary
- South West Window Sampling Ltd
South West Window Sampling Ltd
- Company number
- 13060073
- Incorporated
- 3 Dec 20205 years trading
- Registered office
- 2 Bailey Hill, Castle Cary, BA7 7AD
- Nature of business
- Test drilling and boring
South West Window Sampling Ltd is a 5-year-old private limited company registered in Castle Cary, company number 13060073, one of the UK's groundworks and demolition companies. 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.
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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 £38 (+0.2%) on the year before, to £16K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £37K against £75K owed within a year: 0.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2022 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £16K | £37K | £75K | 2 | |
| 31 Jan 2025 | £16K | £30K | £72K | 2 | |
| 31 Jan 2024 | £20K | £36K | £69K | 2 | |
| 31 Jan 2023 | £9,369 | £23K | £74K | 2 | |
| 31 Jan 2022 | £6,226 | £33K | £55K | 1 |
Where South West Window Sampling Ltd is registered
The registered office is in Castle Cary (BA7), in the Somerset local authority area, South West. Show BA7 7AD on a map.
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Shared registered office
29 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if South West Window Sampling 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 31 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 13060073
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 December 2020 (5 years ago)
- Registered office
- 2 Bailey Hill, Castle Cary, BA7 7AD
- Nature of business
- Test drilling and boring (SIC 43130)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 2 December 2025
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Castle Cary
Other active groundworks and demolition companies registered in Castle Cary.
All groundworks and demolition companies in Castle Cary · All trades in Castle Cary · Groundworks and demolition across the UK
Frequently asked questions
When are South West Window Sampling Ltd's accounts due?
South West Window Sampling Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is South West Window Sampling Ltd'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 South West Window Sampling Ltd still trading?
South West Window Sampling 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 South West Window Sampling Ltd do?
South West Window Sampling Ltd is registered under Test drilling and boring (SIC 43130).
How old is South West Window Sampling Ltd?
South West Window Sampling Ltd was incorporated on 3 December 2020, 5 years ago.
What is the penalty if South West Window Sampling 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 South West Window Sampling 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.