Southeast Windows Limited
- Company number
- 03869180
- Incorporated
- 1 Nov 199926 years trading
- Registered office
- Suite 16 Beaufort Court Admirals Way, South Quay, Docklands, London, E14 9XL
- Nature of business
- Glazing
Southeast Windows Limited is a 26-year-old private limited company registered in Docklands, company number 03869180, one of the UK's glazing companies. 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.
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 Southeast Windows 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 £173 (+78.3%) on the year before, to £394.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £12K against £12K owed within a year: 1.0 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 | £394 | £12K | £12K | 1 | |
| 31 Aug 2024 | £221 | £12K | £9,746 | 1 | |
| 31 Aug 2023 | -£7,988 | £13K | £18K | 1 | |
| 31 Aug 2022 | -£8,466 | £7,972 | £9,583 | 1 | |
| 31 Aug 2021 | -£17K | £14K | £21K | 1 | |
| 31 Aug 2020 | -£24K | £11K | £25K | 1 | |
| 31 Aug 2019 | -£23K | £2,190 | £25K | ||
| 31 Aug 2018 | -£31K | £2,637 | £34K | ||
| 31 Aug 2017 | -£46K | £1,091 | £47K | ||
| 31 Aug 2016 | -£58K | £1,568 | £1,568 | £59K |
Who runs and owns Southeast Windows Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| R*** P*** | Director | Nov 1999 |
3 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| M*** P*** | Secretary | Nov 1999 | Dec 2011 |
| Theydon Secretaries Limited | Corporate Nominee Secretary | Nov 1999 | Nov 1999 |
| Theydon Nominees Limited | Nominee director (company) | Nov 1999 | Oct 2000 |
Person with significant control
Where Southeast Windows Limited is registered
The registered office is in Docklands (E14), in the Tower Hamlets local authority area, London. Show E14 9XL on a map.
Other trade companies in E14
- Clarke & Lloyds Technologies LtdSpecialist contractors
- London Dev Grays LimitedProperty developers
- London Dev Sittingbourne LimitedProperty developers
- London Dev Dagenham LimitedProperty developers
- JK Motor Vehicles LtdMotor traders
- Eilunio LtdProperty developers
- Gasi Cleaning Co LtdCleaning companies
- Lustrouk LimitedCleaning companies
Shared registered office
47 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 Southeast Windows 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
- 03869180
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 November 1999 (26 years ago)
- Registered office
- Suite 16 Beaufort Court Admirals Way, South Quay, Docklands, London, E14 9XL
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 31 October 2025
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
Other active glazing companies.
Frequently asked questions
When are Southeast Windows Limited's accounts due?
Southeast Windows 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 Southeast Windows 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 Southeast Windows Limited still trading?
Southeast Windows 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 Southeast Windows Limited do?
Southeast Windows Limited is registered under Glazing (SIC 43342).
How old is Southeast Windows Limited?
Southeast Windows Limited was incorporated on 1 November 1999, 26 years ago.
Who runs Southeast Windows Limited?
Southeast Windows Limited has 1 active director, the longest-serving appointed in Nov 1999. Their names and service addresses are on the Companies House register.
Who owns Southeast Windows Limited?
One person or company has significant control of Southeast Windows Limited: an individual (owns 75% or more of the shares).
What is the penalty if Southeast Windows 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 Southeast Windows 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.