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- Sigma Clean Ltd
Company profile · Cleaning companies
Sigma Clean Ltd
Sigma Clean Ltd is a 14-year-old private limited company registered in Poole, company number 08177097, one of 102 cleaning companies in Poole. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 August 2025, as filed at Companies House.
Sigma Clean Ltd over the years
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 £575 (+2%) on the year before, to £29K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £36K against £6,908 owed within a year: 5.2 times cover.
- 1 employee 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 Aug 2025 | £29K | £36K | £6,908 | 1 | |
| 31 Aug 2024 | £29K | £37K | £7,838 | 1 | |
| 31 Aug 2023 | £12K | £15K | £3,412 | 1 | |
| 31 Aug 2022 | £9,407 | £90K | £81K | 1 | |
| 31 Aug 2021 | £8,767 | £60K | £69K | 1 | |
| 31 Aug 2020 | £8,767 | £8,215 | £17K | 1 | |
| 31 Aug 2019 | £124 | £12K | £12K | ||
| 31 Aug 2018 | £259 | £14K | £14K | ||
| 31 Aug 2017 | -£397 | £4,772 | £9,120 | £9,903 | |
| 31 Aug 2016 | -£717 | £1,283 | £2,527 | £3,244 |
Where Sigma Clean Ltd is registered
The registered office is in Poole (BH17), in the Bournemouth, Christchurch and Poole local authority area, South West. Show BH17 9BW on a map.
Other trade companies in BH17
- Sheildline Property Care LtdRoofers
- Window Works Dorset LtdJoiners and carpenters
- LT Drylining LtdBuilders
- Castle Plumbing and Heating Solutions LtdPlumbers and heating engineers
- Stuart Court Electrical LtdElectricians
- Hij Engineering and Consultancy LtdMachinery repair and installation
- Savage Solutions LtdFinishing trades
- One Call Cleaners LimitedCleaning companies
Also registered at this address
21 other companies use the same registered office as Sigma Clean Ltd.
- A P Construction South LimitedProperty developers
- A Vanagas LtdJoiners and carpenters
- Barrington Energy Solutions LtdElectricians
- Capp Plumbing & Renewables LimitedPlumbers and heating engineers
- Clean Cut Carpentry Southern LimitedBuilders
- Dma Electrical Contractors LimitedElectricians
- Forecastle Developments LtdProperty developers
- Integrity Build LtdBuilders
- Kwe Contractors LimitedElectricians
- Little Car Company Dorset LtdMotor traders
- Logicom South LimitedMechanics and garages
- Nfi Electrical LtdElectricians
- One Call Cleaners LimitedCleaning companies
- Pinnacle Landscaping and Groundworks LimitedLandscapers and gardeners
- Roam Electrical LimitedElectricians
- SJD Scaffolding LimitedScaffolders
- Stag Home Improvements LtdBuilders
- Swain Electrical and Security LimitedElectricians
- TGM Carpentry LtdInstallers
- The GBS Group Southern LtdSpecialist contractors
- The Humble Motor Company LtdMotor traders
What happens if Sigma Clean 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 08177097
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 August 2012 (14 years ago)
- Registered office
- 75 Tollerford Road, Poole, Dorset, BH17 9BW
- Nature of business
- General cleaning of buildings (SIC 81210)
Window cleaning services (SIC 81221)
Specialised cleaning services (SIC 81222)
Other cleaning services (SIC 81299) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 12 August 2026
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in Poole
Other active cleaning companies registered in Poole.
- Skyvax Ltd2022
- Sorted Dorset Ltd2019
- South Pro Cleaning Ltd2026
- Southwest County Cleaning Ltd2016
- Spotless Care Services Ltd2026
- Star 1 Cleaning Ltd2024
- Sunshine & Sparkle Cleaning Ltd2023
- Sweep Chief Ltd2021
All cleaning companies in Poole · All trades in Poole · Cleaning companies across the UK
Frequently asked questions
When are Sigma Clean Ltd's accounts due?
Sigma Clean Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Sigma Clean Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Sigma Clean Ltd still trading?
Sigma Clean 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 Sigma Clean Ltd do?
Sigma Clean Ltd is registered under General cleaning of buildings (SIC 81210); Window cleaning services (SIC 81221); Specialised cleaning services (SIC 81222); Other cleaning services (SIC 81299).
How old is Sigma Clean Ltd?
Sigma Clean Ltd was incorporated on 13 August 2012, 14 years ago.
What is the penalty if Sigma Clean 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 Sigma Clean 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.