- Companies
- Cleaning companies
- Uxbridge
- Silicon Alley Maintenance Services Limited
Silicon Alley Maintenance Services Limited
- Company number
- 11059978
- Incorporated
- 13 Nov 20178 years trading
- Registered office
- 49 Micawber Avenue, Uxbridge, UB8 3NZ
- Nature of business
- Other building and industrial cleaning activities
Silicon Alley Maintenance Services Limited is a 8-year-old private limited company registered in Uxbridge, company number 11059978, one of 62 cleaning companies in Uxbridge. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 down £68K (-64.9%) on the year before, to £37K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £39K against £25K owed within a year: 1.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £37K | £39K | £25K | 2 | |
| 30 Nov 2024 | £105K | £110K | £28K | 2 | |
| 30 Nov 2023 | £53K | £38K | £7,961 | 2 | |
| 30 Nov 2022 | £66K | £70K | 0 | ||
| 30 Nov 2021 | £59K | £37K | 0 | ||
| 30 Nov 2020 | £33K | £33K | 0 | ||
| 30 Nov 2019 | £9,962 | £9,962 | 0 | ||
| 30 Nov 2018 | £39K | £39K | £0 |
Where Silicon Alley Maintenance Services Limited is registered
The registered office is in Uxbridge (UB8), in the Hillingdon local authority area, London. Show UB8 3NZ on a map.
Other trade companies in UB8
- D-Towel LtdCleaning companies
- Sahi & Dhot Builders LtdBuilders
- Chas LtdBuilders
- Express Roofing LtdRoofers
- Boilercare Cover LtdPlumbers and heating engineers
- RMKK LtdBuilders
- Nayia Properties LtdProperty developers
- Dashi Carpentry LtdJoiners and carpenters
What happens if Silicon Alley Maintenance Services 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 11059978
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 November 2017 (8 years ago)
- Registered office
- 49 Micawber Avenue, Uxbridge, UB8 3NZ
- Nature of business
- Other building and industrial cleaning activities (SIC 81229)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 12 November 2025
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in Uxbridge
Other active cleaning companies registered in Uxbridge.
- Smart Exterior Cleaning and Maintenance Limited2011
- Sokhna Cleaning Limited2025
- SP&LM Ltd2025
- Spring Cleaning Limited2011
- Stela Clean Ltd2013
- Stollwells Cleaning Services Limited2021
- T&N Oven Cleaning Company Limited2022
- Topcleaning GB Limited2008
All cleaning companies in Uxbridge · All trades in Uxbridge · Cleaning companies across the UK
Frequently asked questions
When are Silicon Alley Maintenance Services Limited's accounts due?
Silicon Alley Maintenance Services Limited's next accounts are due at Companies House by 31 August 2027 (in 321 days), covering the period to 30 November 2026.
When is Silicon Alley Maintenance Services Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Silicon Alley Maintenance Services Limited still trading?
Silicon Alley Maintenance Services 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 Silicon Alley Maintenance Services Limited do?
Silicon Alley Maintenance Services Limited is registered under Other building and industrial cleaning activities (SIC 81229).
How old is Silicon Alley Maintenance Services Limited?
Silicon Alley Maintenance Services Limited was incorporated on 13 November 2017, 8 years ago.
What is the penalty if Silicon Alley Maintenance Services 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 Silicon Alley Maintenance Services 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.