- Companies
- Installers
- Chester
- C. Lock & Sons Limited
C. Lock & Sons Limited
- Company number
- 17305623
- Incorporated
- 29 Jun 2026
- Registered office
- 1 Ferndale Avenue, Elton, Chester, CH2 4PL
- Nature of business
- Other construction installation
C. Lock & Sons Limited is a newly incorporated private limited company registered in Chester, company number 17305623, one of 33 installation companies (insulation, lifts, shutters and similar) in Chester. Its next accounts are due at Companies House on 29 March 2028, and its first CT600 is due at HMRC on 28 June 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.
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Where C. Lock & Sons Limited is registered
The registered office is in Chester (CH2), in the Cheshire West and Chester local authority area, North West. Show CH2 4PL on a map.
Other trade companies in CH2
- Pinnacle Building & Joinery LtdFinishing trades
- Ridge Electrical Solutions LtdElectricians
- Verity Land Holdings LimitedProperty developers
- Nextstate Automation LtdMachinery repair and installation
- Mehran Motors LtdMotor traders
- Red Cube Renovations Group LtdFinishing trades
- 1 Tree Care LtdLandscapers and gardeners
- RM Property & Maintenance LtdBuilders
What happens if C. Lock & Sons 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 29 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Mar 2028 to 29 Apr 2028 | £150 |
| 1 to 3 months late | 30 Apr 2028 to 29 Jun 2028 | £375 |
| 3 to 6 months late | 30 Jun 2028 to 29 Sep 2028 | £750 |
| More than 6 months late | From 30 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 17305623
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 June 2026
- Registered office
- 1 Ferndale Avenue, Elton, Chester, CH2 4PL
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Chester
Other active installation companies (insulation, lifts, shutters and similar) registered in Chester.
- C.R.F. Swimming Pools Limited2003
- CL Mobile Welding & Son Ltd2004
- Dectel Construction Limited2012
- Dee Fire Limited2003
- Deelux Limited2015
- Dexcore Construction Group Ltd2025
- Eavesmore Construction Limited2021
- Fires & Stoves Chester Limited2022
All installation companies (insulation, lifts, shutters and similar) in Chester · All trades in Chester · Installers across the UK
Frequently asked questions
When are C. Lock & Sons Limited's accounts due?
C. Lock & Sons Limited's next accounts are due at Companies House by 29 March 2028 (in 533 days), covering the period to 30 June 2027.
When is C. Lock & Sons Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 28 June 2027, due by 28 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is C. Lock & Sons Limited still trading?
C. Lock & Sons 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 C. Lock & Sons Limited do?
C. Lock & Sons Limited is registered under Other construction installation (SIC 43290).
How old is C. Lock & Sons Limited?
C. Lock & Sons Limited was incorporated on 29 June 2026, less than a year ago.
What is the penalty if C. Lock & Sons 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 C. Lock & Sons 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.