- Companies
- Finishing trades
- Harrow
- Window World Systems Ltd
Window World Systems Ltd
- Company number
- 02997607
- Incorporated
- 2 Dec 199431 years trading
- Registered office
- Second Floor, Kirkland House, 11-15 Peterborough Road, Harrow, Middlesex, HA1 2AX
- Nature of business
- Other building completion and finishing; Retail sale of textiles in specialised stores
Window World Systems Ltd is a 31-year-old private limited company registered in Harrow, company number 02997607, one of 251 building finishing companies in Harrow. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 down £11K (-79.9%) on the year before, to £2,774.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £8,332 against £9,172 owed within a year: 0.9 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 Dec 2025 | £2,774 | £8,332 | £9,172 | 1 | |
| 31 Dec 2024 | £14K | £25K | £15K | 1 | |
| 31 Dec 2023 | £24K | £48K | £28K | 1 | |
| 31 Dec 2022 | £22K | £42K | £25K | 1 | |
| 31 Dec 2021 | £17K | £45K | £34K | 1 | |
| 31 Dec 2020 | -£9,820 | £7,377 | £23K | 1 | |
| 31 Dec 2019 | -£19K | £3,126 | £29K | ||
| 31 Dec 2018 | £7,200 | £2,055 | £29K | £30K | 0 |
| 31 Dec 2017 | -£4,496 | £27K | £34K | 1 | |
| 31 Dec 2016 | £3,036 | £0 | £36K | £37K | 1 |
Where Window World Systems Ltd is registered
The registered office is in Harrow (HA1), in the Harrow local authority area, London. Show HA1 2AX on a map.
Other trade companies in HA1
- Cabos Electrical LimitedElectricians
- Mia Maria Services LtdCleaning companies
- Ac Operations LtdScaffolders
- Verde Masters LtdLandscapers and gardeners
- Omega Works Group LtdLandscapers and gardeners
- Call 'Em LimitedPlumbers and heating engineers
- Swan Roofing Services LimitedRoofers
- DRV Property Solutions LtdPainters and decorators
Shared registered office
53 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 Window World Systems 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 02997607
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 December 1994 (31 years ago)
- Registered office
- Second Floor, Kirkland House, 11-15 Peterborough Road, Harrow, Middlesex, HA1 2AX
- Nature of business
- Other building completion and finishing (SIC 43390)
Retail sale of textiles in specialised stores (SIC 47510) - Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 26 November 2025
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Harrow
Other active building finishing companies registered in Harrow.
- Wooden Window Service Ltd2014
- Workplace Kitchen Design Ltd2015
- WPG Refurbishment Ltd2012
- Zuri Homes & Interiors Ltd2025
- 2 A T Design Limited2004
- 4 Mark Construction Limited2025
- A J Dampproofing Ltd2021
- A&A London Cleaning Ltd2022
All building finishing companies in Harrow · All trades in Harrow · Finishing trades across the UK
Frequently asked questions
When are Window World Systems Ltd's accounts due?
Window World Systems Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Window World Systems Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Window World Systems Ltd still trading?
Window World Systems 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 Window World Systems Ltd do?
Window World Systems Ltd is registered under Other building completion and finishing (SIC 43390); Retail sale of textiles in specialised stores (SIC 47510).
How old is Window World Systems Ltd?
Window World Systems Ltd was incorporated on 2 December 1994, 31 years ago.
What is the penalty if Window World Systems 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 Window World Systems 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.