- Company number
- 12161868
- Incorporated
- 19 Aug 20197 years trading
- Registered office
- 73 Ham Street, Richmond, TW10 7HW
- Nature of business
- Construction of domestic buildings; Bookkeeping activities
Windows Workshop Limited is a 7-year-old private limited company registered in Richmond, company number 12161868, one of 63 building contractors in Richmond. 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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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 £2,630 (+40.5%) on the year before, to £9,125.
- Net assets rose in 4 of 5 year-on-year comparisons on record.
- Current assets of £20K against £2,845 owed within a year: 7.0 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £9,125 | £20K | £2,845 | 1 | |
| 31 Aug 2024 | £6,495 | £20K | £3,832 | 2 | |
| 31 Aug 2023 | £4,439 | £20K | £3,110 | 2 | |
| 31 Aug 2022 | £1,004 | £17K | £3,051 | 1 | |
| 31 Aug 2021 | -£2,057 | £15K | £2,735 | 1 | |
| 31 Aug 2020 | £360 | £18K | £84 | 1 |
Where Windows Workshop Limited is registered
The registered office is in Richmond (TW10), in the Richmond upon Thames local authority area, London. Show TW10 7HW on a map.
Other trade companies in TW10
- Ecobrix Contractors LtdBuilders
- Bright Hill No.2 LimitedProperty developers
- Herit London LtdFinishing trades
- Ah Richmond LtdProperty developers
- Den Scoth Developments LtdProperty developers
- Aziairtech LtdMachinery repair and installation
- RJD Balkan Construction LtdBuilders
- Sun&Lion LtdFacilities management
What happens if Windows Workshop 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 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
- 12161868
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 August 2019 (7 years ago)
- Registered office
- 73 Ham Street, Richmond, TW10 7HW
- Nature of business
- Construction of domestic buildings (SIC 41202)
Bookkeeping activities (SIC 69202) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 13 July 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Richmond
Other active building contractors registered in Richmond.
- Zetland Estates Limited1999
- A & G Developments (Yorkshire) Limited2002
- A Keys Construction Ltd2021
- A2Z Real Estate Ltd2021
- Aaims Design&Build Limited2022
- Adi Facades Ltd2015
- All 4 Construction Limited2023
- Anthony Johnson Construction Ltd2017
All building contractors in Richmond · All trades in Richmond · Builders across the UK
Frequently asked questions
When are Windows Workshop Limited's accounts due?
Windows Workshop Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Windows Workshop Limited'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 Windows Workshop Limited still trading?
Windows Workshop 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 Windows Workshop Limited do?
Windows Workshop Limited is registered under Construction of domestic buildings (SIC 41202); Bookkeeping activities (SIC 69202).
How old is Windows Workshop Limited?
Windows Workshop Limited was incorporated on 19 August 2019, 7 years ago.
What is the penalty if Windows Workshop 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 Windows Workshop 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.