- Companies
- Cleaning companies
- Eastbourne
- Simonize Limited
Simonize Limited
- Company number
- 06658220
- Incorporated
- 28 Jul 200818 years trading
- Registered office
- 120 Cavendish Place, Eastbourne, East Sussex, BN21 3TZ
- Nature of business
- Window cleaning services
Simonize Limited is a 18-year-old private limited company registered in Eastbourne, company number 06658220, one of 87 cleaning companies in Eastbourne. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £2,487 (+43.2%) on the year before, to £8,247.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £22K against £8,367 owed within a year: 2.6 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 Jul 2025 | £8,247 | £6,231 | £22K | £8,367 | 1 |
| 31 Jul 2024 | £5,760 | £12K | £22K | £8,053 | 1 |
| 31 Jul 2023 | £5,255 | £18K | £29K | £12K | 1 |
| 31 Jul 2022 | £2,971 | £30K | £38K | £21K | 1 |
| 31 Jul 2021 | £2,497 | £29K | £33K | £13K | 2 |
| 31 Jul 2020 | £2,053 | £10K | £11K | £9,309 | 1 |
| 31 Jul 2019 | £6,091 | £22K | £23K | £18K | 1 |
| 31 Jul 2018 | £176 | £15K | £17K | £20K | 1 |
| 31 Jul 2017 | £145 | £29K | £30K | £38K | 1 |
| 31 Jul 2016 | £90 | £28K | £31K | £44K |
Where Simonize Limited is registered
The registered office is in Eastbourne (BN21), in the Eastbourne local authority area, South East. Show BN21 3TZ on a map.
Other trade companies in BN21
- Solaris Motors Solutions LimitedMechanics and garages
- Chartwell Design and Build LimitedBuilders
- The Sussex Flint Company LtdBuilders
- Wealden Property Services LimitedSpecialist contractors
- Oliver J Stean Plumbing & Heating LimitedPlumbers and heating engineers
- Ac Plastering & Rendering LtdPlasterers
- Coxon Construction Group LtdProperty developers
- Able Cleaning and Property Maintenance LimitedCleaning companies
Shared registered office
42 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 Simonize 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 06658220
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 July 2008 (18 years ago)
- Registered office
- 120 Cavendish Place, Eastbourne, East Sussex, BN21 3TZ
- Nature of business
- Window cleaning services (SIC 81221)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 24 July 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 Eastbourne
Other active cleaning companies registered in Eastbourne.
- Smart Services (Eastbourne) Limited2013
- South Coast Pest Management Ltd2025
- South Coast Window Cleaning Franchises Limited2015
- South Coast Window Cleaning Ltd2013
- Sparkle Daisy Clean Ltd2024
- Spic & Span Construction Cleaning Ltd2016
- Spotless Commercial East Sussex Ltd2025
- Squeaky Clean Eastbourne Limited2003
All cleaning companies in Eastbourne · All trades in Eastbourne · Cleaning companies across the UK
Frequently asked questions
When are Simonize Limited's accounts due?
Simonize Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Simonize Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Simonize Limited still trading?
Simonize 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 Simonize Limited do?
Simonize Limited is registered under Window cleaning services (SIC 81221).
How old is Simonize Limited?
Simonize Limited was incorporated on 28 July 2008, 18 years ago.
What is the penalty if Simonize 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 Simonize 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.