- Companies
- Glaziers
- Covent Garden
- GM Windows Ltd
GM Windows Ltd
- Company number
- 13463430
- Incorporated
- 17 Jun 20215 years trading
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Glazing
GM Windows Ltd is a 5-year-old private limited company registered in Covent Garden, company number 13463430, one of 30 glazing companies in Covent Garden. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 GM Windows LtdOr 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 down £22K (-803.5%) on the year before, to -£19K.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £30K against £48K owed within a year: 0.6 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£19K | £30K | £48K | 1 | |
| 30 Jun 2024 | £2,733 | £601 | £22K | £19K | 0 |
| 30 Jun 2023 | -£5,701 | £11K | £4,090 | £9,791 | 0 |
| 30 Jun 2022 | -£2,238 | £5,045 | £10K | 1 |
Where GM Windows Ltd is registered
The registered office is in Covent Garden (WC2H), in the Camden local authority area, London. Show WC2H 9JQ on a map.
Other trade companies in WC2H
- Superclean Agency LtdCleaning companies
- Sal Cleaning LtdCleaning companies
- Cityshine Facilities Services LtdCleaning companies
- Pureoceanscleaning LtdCleaning companies
- Muca Property Group LimitedProperty developers
- E.L.G.G LtdJoiners and carpenters
- First Ascentia Integrated LtdCleaning companies
- Fixing London LtdSpecialist contractors
Shared registered office
4,529 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 GM Windows 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 13463430
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 June 2021 (5 years ago)
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Glazing (SIC 43342)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 16 June 2026
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 Covent Garden
Other active glazing companies registered in Covent Garden.
- H & R Windows Ltd2025
- Heath Park Windows and Doors Ltd2024
- Keltech Home Improvements Ltd2026
- LJ Surveying Ltd2022
- Lumasol Limited2026
- Minimal Framed Projects UK Ltd2025
- Newland Home Improvements Ltd2025
- Newland Improvements Ltd2026
All glazing companies in Covent Garden · All trades in Covent Garden · Glaziers across the UK
Frequently asked questions
When are GM Windows Ltd's accounts due?
GM Windows Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is GM Windows Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is GM Windows Ltd still trading?
GM Windows 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 GM Windows Ltd do?
GM Windows Ltd is registered under Glazing (SIC 43342).
How old is GM Windows Ltd?
GM Windows Ltd was incorporated on 17 June 2021, 5 years ago.
What is the penalty if GM Windows 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 GM Windows 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.