- Companies
- Specialist contractors
- London
- Seven Welding Ltd
Seven Welding Ltd
- Company number
- 16937552
- Incorporated
- 31 Dec 2025
- Registered office
- 15 Bromhedge, London, SE9 3DY
- Nature of business
- Other specialised construction activities n.e.c.; Freight transport by road
Seven Welding Ltd is a newly incorporated private limited company registered in London, company number 16937552, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 30 September 2027, and its first CT600 is due at HMRC on 30 December 2027.
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.
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Where Seven Welding Ltd is registered
The registered office is in London (SE9), in the Greenwich local authority area, London. Show SE9 3DY on a map.
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Also registered at this address
1 other company uses the same registered office as Seven Welding Ltd.
- DDR Construction LtdProperty developers
What happens if Seven Welding 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 16937552
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 December 2025
- Registered office
- 15 Bromhedge, London, SE9 3DY
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Freight transport by road (SIC 49410) - Year end
- 31 December (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Seyfi Catering Ltd2022
- SF&Sons Ltd2021
- SFQ&Q Limited2014
- SFS Dryliner Limited2020
- SGP (Land & Developments) Limited2009
- SH Brickwork Ltd2020
- Shabeckint Consulting Ltd2015
- Shak Developments Ltd2026
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Seven Welding Ltd's accounts due?
Seven Welding Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Seven Welding 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 30 December 2026, due by 30 December 2027, and one for the period to 31 December 2026, due by 31 December 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Seven Welding Ltd still trading?
Seven Welding 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 Seven Welding Ltd do?
Seven Welding Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Freight transport by road (SIC 49410).
How old is Seven Welding Ltd?
Seven Welding Ltd was incorporated on 31 December 2025, less than a year ago.
What is the penalty if Seven Welding 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 Seven Welding 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.