- Companies
- Installers
- London
- Grassmax UK Limited
Grassmax UK Limited
- Company number
- 13696171
- Incorporated
- 21 Oct 20214 years trading
- Registered office
- 52 Leytonstone Road, London, Greater London, E15 1SQ
- Nature of business
- Other construction installation
Grassmax UK Limited is a 4-year-old private limited company registered in London, company number 13696171, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 31 October 2026, and its first CT600 is due at HMRC on 31 October 2026.
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 Grassmax UK 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.
- 2 employees on average during the year.
- Balance sheets on record for 3 years, 2022 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2024 | 2 | ||||
| 31 Oct 2023 | £7,147 | £9,248 | £2,101 | 2 | |
| 31 Oct 2022 | £6,469 | £8,456 | £1,987 | 2 |
Where Grassmax UK Limited is registered
The registered office is in London (E15), in the Newham local authority area, London. Show E15 1SQ on a map.
Other trade companies in E15
- Cladding & SFS Specialist LtdBuilders
- Construction-Mrinomjon LtdBuilders
- 5 Star Tree Maintenance LimitedLandscapers and gardeners
- Sunconstruct LtdBuilders
- Samson Build LtdProperty developers
- Ic Perfect Services LtdBuilders
- Am Vent LtdBuilders
- Dana Services LtdBuilders
Also registered at this address
7 other companies use the same registered office as Grassmax UK Limited.
- Augusta Landscaping LtdLandscapers and gardeners
- Av Power LtdElectricians
- Elvx Engineering LtdElectricians
- Imperial Elite Construction LimitedBuilders
- Locus Invest LtdProperty developers
- N&O Cleaning LtdCleaning companies
- Npat Group LtdProperty developers
What happens if Grassmax UK 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 13696171
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 October 2021 (4 years ago)
- Registered office
- 52 Leytonstone Road, London, Greater London, E15 1SQ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2024
- Last confirmation statement
- 20 October 2025
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Gravika Ltd2024
- Great British Design Limited2024
- Great British Stone Group Limited2025
- Great Builds Ltd2026
- Green Home Surveys Ltd2025
- Green Scheme Solutions Ltd2009
- Greenland Energy Services Ltd2012
- Greenlife Home Maintenance Ltd2024
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Grassmax UK Limited's accounts due?
Grassmax UK Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Grassmax UK Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2025, due by 31 October 2026, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Grassmax UK Limited still trading?
Grassmax UK 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 Grassmax UK Limited do?
Grassmax UK Limited is registered under Other construction installation (SIC 43290).
How old is Grassmax UK Limited?
Grassmax UK Limited was incorporated on 21 October 2021, 4 years ago.
What is the penalty if Grassmax UK 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 Grassmax UK 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.