- Companies
- Installers
- Plymouth
- Sigma Doors and Shutters Limited
Sigma Doors and Shutters Limited
- Company number
- 13834202
- Incorporated
- 7 Jan 20224 years trading
- Registered office
- 199-201 Faraday Road, Plymouth, PL4 0ST
- Nature of business
- Other construction installation
Sigma Doors and Shutters Limited is a 4-year-old private limited company registered in Plymouth, company number 13834202, one of 54 installation companies (insulation, lifts, shutters and similar) in Plymouth. 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 £5,215 (+15.6%) on the year before, to -£28K.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £38K against £67K owed within a year: 0.6 times cover.
- 2 employees on average, down from 3 the year before.
- Balance sheets on record for 4 years, 2023 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | -£28K | £38K | £67K | 2 | |
| 31 Jan 2025 | -£33K | £34K | £68K | 3 | |
| 31 Jan 2024 | -£5,753 | £27K | £49K | 4 | |
| 31 Jan 2023 | £9,491 | £34K | £26K | 4 |
Where Sigma Doors and Shutters Limited is registered
The registered office is in Plymouth (PL4), in the Plymouth local authority area, South West. Show PL4 0ST on a map.
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- Algar Developments LimitedJoiners and carpenters
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What happens if Sigma Doors and Shutters 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 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
- 13834202
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 January 2022 (4 years ago)
- Registered office
- 199-201 Faraday Road, Plymouth, PL4 0ST
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 6 January 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Plymouth
Other active installation companies (insulation, lifts, shutters and similar) registered in Plymouth.
- SJN Construction Limited2017
- Southwest Garden Services Ltd2024
- SPB Cladding Ltd2023
- Steer Pipe Fitting Services Ltd2016
- Stephen Williams Limited2000
- Studio One South West Ltd2011
- T C Brickwork (SW) Ltd2020
- TC Carpentry & Developments Limited2026
All installation companies (insulation, lifts, shutters and similar) in Plymouth · All trades in Plymouth · Installers across the UK
Frequently asked questions
When are Sigma Doors and Shutters Limited's accounts due?
Sigma Doors and Shutters 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 Sigma Doors and Shutters 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 Sigma Doors and Shutters Limited still trading?
Sigma Doors and Shutters 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 Sigma Doors and Shutters Limited do?
Sigma Doors and Shutters Limited is registered under Other construction installation (SIC 43290).
How old is Sigma Doors and Shutters Limited?
Sigma Doors and Shutters Limited was incorporated on 7 January 2022, 4 years ago.
What is the penalty if Sigma Doors and Shutters 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 Sigma Doors and Shutters 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.