- Company number
- 12606578
- Incorporated
- 18 May 20206 years trading
- Registered office
- Unit 9105 141 Access House Morden Road, Mitcham, Surrey, CR4 4DG
- Nature of business
- Glazing; Other building completion and finishing
Windows Factory London Limited is a 6-year-old private limited company registered in Mitcham, company number 12606578, one of the UK's glazing companies. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Windows Factory London LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £8,639 (+113.4%) on the year before, to £1,018.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £35K against £34K owed within a year: 1.0 times cover.
- 3 employees on average, up from 1 the year before.
- Balance sheets on record for 6 years, 2021 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £1,018 | £35K | £34K | 3 | |
| 31 May 2025 | -£7,621 | £1,456 | £9,047 | 1 | |
| 31 May 2024 | £909 | £3,608 | £2,399 | 1 | |
| 31 May 2023 | £100 | £100 | |||
| 31 May 2022 | £100 | £100 | |||
| 31 May 2021 | £100 | £100 |
Where Windows Factory London Limited is registered
The registered office is in Mitcham (CR4), in the Merton local authority area, London. Show CR4 4DG on a map.
Other trade companies in CR4
- Mendevo LimitedFloor and wall tilers
- Az Auto Body Repair LtdMechanics and garages
- Welcome Maintenance LimitedPainters and decorators
- Fixmot LtdMechanics and garages
- MPB Property Care LtdFinishing trades
- Aoo Building Services LtdBuilders
- LDN Plumbing Heating and Cooling LimitedPlumbers and heating engineers
- Dgha Construction LtdBuilders
What happens if Windows Factory London 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 12606578
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 May 2020 (6 years ago)
- Registered office
- Unit 9105 141 Access House Morden Road, Mitcham, Surrey, CR4 4DG
- Nature of business
- Glazing (SIC 43342)
Other building completion and finishing (SIC 43390) - Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 16 June 2026
- Previous names
- DMS Home Improvements London Ltd (until 12 Jan 2024)
DMS UK Deals London Ltd (until 17 Sep 2021)
Filing notes for glazing companies
Glazing companies often take deposits before work starts. Deposits held at the year end are a liability, not income, until the job is done.
Similar companies in Mitcham
Other active glazing companies registered in Mitcham.
All glazing companies in Mitcham · All trades in Mitcham · Glaziers across the UK
Frequently asked questions
When are Windows Factory London Limited's accounts due?
Windows Factory London Limited's next accounts are due at Companies House by 29 February 2028 (in 504 days), covering the period to 31 May 2027.
When is Windows Factory London Limited's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Windows Factory London Limited still trading?
Windows Factory London 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 Factory London Limited do?
Windows Factory London Limited is registered under Glazing (SIC 43342); Other building completion and finishing (SIC 43390).
How old is Windows Factory London Limited?
Windows Factory London Limited was incorporated on 18 May 2020, 6 years ago.
What is the penalty if Windows Factory London 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 Factory London 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.