- Companies
- Specialist contractors
- Thornton Heath
- Simmsfix Ltd
Simmsfix Ltd
- Company number
- 16595015
- Incorporated
- 21 Jul 20251 year trading
- Registered office
- 31 Lyndhurst Road, Thornton Heath, CR7 7PY
- Nature of business
- Other specialised construction activities n.e.c.
Simmsfix Ltd is a 1-year-old private limited company registered in Thornton Heath, company number 16595015, one of 21 specialist construction companies in Thornton Heath. Its next accounts are due at Companies House on 21 April 2027, and its first CT600 is due at HMRC on 20 July 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.
Is this your company?
File the first 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 Simmsfix LtdOr 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.
Where Simmsfix Ltd is registered
The registered office is in Thornton Heath (CR7), in the Croydon local authority area, London. Show CR7 7PY on a map.
Other trade companies in CR7
- Ib Air Conditioning LimitedPlumbers and heating engineers
- Gold Carpet Cleaning Services LtdCleaning companies
- Azad Auto LtdMechanics and garages
- Tota Steel LtdFinishing trades
- Survey Stream Property Services LtdFacilities management
- Saunders Mechanics LtdMechanics and garages
- SR Gas London LimitedPlumbers and heating engineers
- Prestige Auto Repair & Body Works LtdMechanics and garages
What happens if Simmsfix 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 21 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 Apr 2027 to 21 May 2027 | £150 |
| 1 to 3 months late | 22 May 2027 to 21 Jul 2027 | £375 |
| 3 to 6 months late | 22 Jul 2027 to 21 Oct 2027 | £750 |
| More than 6 months late | From 22 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16595015
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 July 2025 (1 year ago)
- Registered office
- 31 Lyndhurst Road, Thornton Heath, CR7 7PY
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 27 July 2026
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 Thornton Heath
Other active specialist construction companies registered in Thornton Heath.
- Thorntonfm Ltd2026
- Urban Jungle Surveyors Ltd2023
- We Will Fix IT Ltd2025
- A&B Property Renovation Ltd2019
- Andrew Jackson Gardens Ltd2015
- Binjojo Building Maintenance Ltd2023
- Chardo's Building Renovations Limited2017
- Dark Diamond Solutions Ltd2017
All specialist construction companies in Thornton Heath · All trades in Thornton Heath · Specialist contractors across the UK
Frequently asked questions
When are Simmsfix Ltd's accounts due?
Simmsfix Ltd's next accounts are due at Companies House by 21 April 2027 (in 191 days), covering the period to 31 July 2026.
When is Simmsfix 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 20 July 2026, due by 20 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Simmsfix Ltd still trading?
Simmsfix Ltd is listed as active on the Companies House register (checked 12 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 Simmsfix Ltd do?
Simmsfix Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Simmsfix Ltd?
Simmsfix Ltd was incorporated on 21 July 2025, 1 year ago.
What is the penalty if Simmsfix 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 Simmsfix Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.