- Company number
- 17490861
- Incorporated
- 30 Sep 2026
- Registered office
- 29 South Road, London, SW19 1UU
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Other building completion and finishing
Firstfixlondon Ltd. is a newly incorporated private limited company registered in London, company number 17490861, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 June 2028, and its first CT600 is due at HMRC on 29 September 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 Firstfixlondon Ltd. is registered
The registered office is in London (SW19), in the Merton local authority area, London. Show SW19 1UU on a map.
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What happens if Firstfixlondon 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 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2028 to 31 Jul 2028 | £150 |
| 1 to 3 months late | 1 Aug 2028 to 30 Sep 2028 | £375 |
| 3 to 6 months late | 1 Oct 2028 to 31 Dec 2028 | £750 |
| More than 6 months late | From 1 Jan 2029 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 17490861
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 September 2026
- Registered office
- 29 South Road, London, SW19 1UU
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Other building completion and finishing (SIC 43390) - Year end
- 30 September (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.
- Firstrate Fencing Ltd2024
- Fishbro Ltd2019
- Fisher Construction Services Ltd2024
- Fishti Construction Ltd2022
- Fishti Ltd2025
- Fit Boys 2024 Ltd2024
- Fittra Ltd2015
- Fittwise Contractors Ltd2025
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Firstfixlondon Ltd.'s accounts due?
Firstfixlondon Ltd.'s next accounts are due at Companies House by 30 June 2028 (in 627 days), covering the period to 30 September 2027.
When is Firstfixlondon 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 29 September 2027, due by 29 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Firstfixlondon Ltd. still trading?
Firstfixlondon 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 Firstfixlondon Ltd. do?
Firstfixlondon Ltd. is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Other building completion and finishing (SIC 43390).
How old is Firstfixlondon Ltd.?
Firstfixlondon Ltd. was incorporated on 30 September 2026, less than a year ago.
What is the penalty if Firstfixlondon 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 Firstfixlondon 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.