- Company number
- 12856342
- Incorporated
- 3 Sep 20206 years trading
- Registered office
- 4TH Floor, Silverstream House, 45 Fitzroy Street, London, W1T 6EB
- Nature of business
- Construction of domestic buildings; Other building completion and finishing
Sandos Maintenance Limited is a 6-year-old private limited company registered in London, company number 12856342, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 Sandos Maintenance 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 £17K (+186.9%) on the year before, to £26K.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £35K against £8,838 owed within a year: 4.0 times cover.
- 1 employee on average, up from -1 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £26K | £35K | £8,838 | 1 | |
| 30 Sep 2024 | £9,092 | £14K | £4,844 | -1 | |
| 30 Sep 2023 | £20K | £22K | £1,313 | 0 | |
| 30 Sep 2022 | £2 | £1 | £0 | 2 | |
| 30 Sep 2021 | £2 | £1 | £0 | 1 |
Where Sandos Maintenance Limited is registered
The registered office is in London (W1T), in the Camden local authority area, London. Show W1T 6EB on a map.
Other trade companies in W1T
- Preschools Cleaning Company LtdCleaning companies
- Northheat Plumbing & Heating LtdPlumbers and heating engineers
- Leuk Lift Engineering UK LtdMachinery repair and installation
- Az Maintenance Services LimitedFinishing trades
- Braintree Property Service LtdBuilders
- Nona Construction & Retrofit LtdBuilders
- Denvav LimitedBuilders
- Marshall Roofing Services LtdRoofers
Shared registered office
53 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 Sandos Maintenance 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 12856342
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 September 2020 (6 years ago)
- Registered office
- 4TH Floor, Silverstream House, 45 Fitzroy Street, London, W1T 6EB
- Nature of business
- Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 28 June 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- Sandstone Structures Ltd2025
- Sandu Build&Trans Ltd2026
- Sandu Pro Service Ltd2026
- Saneh Construction Limited2026
- Sanferyan Limited2025
- Sani Finishing Limited2021
- Sani Renovation Ltd2025
- Sanjeep Construction Ltd2026
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Sandos Maintenance Limited's accounts due?
Sandos Maintenance Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Sandos Maintenance Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Sandos Maintenance Limited still trading?
Sandos Maintenance 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 Sandos Maintenance Limited do?
Sandos Maintenance Limited is registered under Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is Sandos Maintenance Limited?
Sandos Maintenance Limited was incorporated on 3 September 2020, 6 years ago.
What is the penalty if Sandos Maintenance 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 Sandos Maintenance 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.