- Company number
- 16970109
- Incorporated
- 18 Jan 2026
- Registered office
- 34 Ashton Road, London, E15 1DP
- Nature of business
- Construction of commercial buildings
SC Mechanical Ltd is a newly incorporated private limited company registered in London, company number 16970109, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 18 October 2027, and its first CT600 is due at HMRC on 17 January 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where SC Mechanical Ltd is registered
The registered office is in London (E15), in the Newham local authority area, London. Show E15 1DP on a map.
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Also registered at this address
1 other company uses the same registered office as SC Mechanical Ltd.
- Edt Construction LtdSpecialist contractors
What happens if SC Mechanical 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 18 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 19 Oct 2027 to 18 Nov 2027 | £150 |
| 1 to 3 months late | 19 Nov 2027 to 18 Jan 2028 | £375 |
| 3 to 6 months late | 19 Jan 2028 to 18 Apr 2028 | £750 |
| More than 6 months late | From 19 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 16970109
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 January 2026
- Registered office
- 34 Ashton Road, London, E15 1DP
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 January (accounting reference date)
- Accounts type
- No accounts filed yet
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.
- Sca Property Management Ltd2025
- Scapex Ltd2023
- SCG Lounge Ltd2025
- Schlopu Ltd2026
- Schnus Limited2022
- SCL Design & Build Ltd2021
- Scope Assure Ltd2026
- Scope Design Construction Limited2014
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are SC Mechanical Ltd's accounts due?
SC Mechanical Ltd's next accounts are due at Companies House by 18 October 2027 (in 371 days), covering the period to 31 January 2027.
When is SC Mechanical Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 17 January 2027, due by 17 January 2028, and one for the period to 31 January 2027, due by 31 January 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is SC Mechanical Ltd still trading?
SC Mechanical 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 SC Mechanical Ltd do?
SC Mechanical Ltd is registered under Construction of commercial buildings (SIC 41201).
How old is SC Mechanical Ltd?
SC Mechanical Ltd was incorporated on 18 January 2026, less than a year ago.
What is the penalty if SC Mechanical 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 SC Mechanical 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.