- Companies
- Electricians
- Lancing
- Sentinel Integrated Systems Limited
Sentinel Integrated Systems Limited
- Company number
- 16641323
- Incorporated
- 11 Aug 20251 year trading
- Registered office
- 24 Penstone Close, Lancing, BN15 9AP
- Nature of business
- Electrical installation
Sentinel Integrated Systems Limited is a 1-year-old private limited company registered in Lancing, company number 16641323, one of 29 electrical contractors in Lancing. Its next accounts are due at Companies House on 11 May 2027, and its first CT600 is due at HMRC on 10 August 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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Who runs and owns Sentinel Integrated Systems Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| B*** B*** | Director | Aug 2025 |
| C*** M*** | Director | Aug 2025 |
People with significant control (2)
Where Sentinel Integrated Systems Limited is registered
The registered office is in Lancing (BN15), in the Adur local authority area, South East. Show BN15 9AP on a map.
Other trade companies in BN15
- DR Building & Landscaping LimitedLandscapers and gardeners
- Elev8Hoist&Crane LtdInstallers
- Iron Marques LtdMotor traders
- Bish Bash Bosh Builds LtdBuilders
- Feelfree 2U Cleaning LtdCleaning companies
- Blank Canvas Projects LtdFinishing trades
- H Mason Construction LtdBuilders
- Offord LtdProperty developers
Also registered at this address
1 other company uses the same registered office as Sentinel Integrated Systems Limited.
- Information Technology Recycling Solutions LimitedRepair services
What happens if Sentinel Integrated Systems 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 11 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 May 2027 to 11 Jun 2027 | £150 |
| 1 to 3 months late | 12 Jun 2027 to 11 Aug 2027 | £375 |
| 3 to 6 months late | 12 Aug 2027 to 11 Nov 2027 | £750 |
| More than 6 months late | From 12 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 16641323
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 August 2025 (1 year ago)
- Registered office
- 24 Penstone Close, Lancing, BN15 9AP
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 10 August 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Lancing
Other active electrical contractors registered in Lancing.
- Shires Electrics Limited2021
- Tec Electrical & Solar Ltd2018
- The Voltabing Company Ltd2019
- Therm Green Energy Ltd2023
- Tower Property Solutions Ltd2025
- Z P T Limited2023
- 72 Electrical Ltd2009
- Allsparks Electrical Limited2018
All electrical contractors in Lancing · All trades in Lancing · Electricians across the UK
Frequently asked questions
When are Sentinel Integrated Systems Limited's accounts due?
Sentinel Integrated Systems Limited's next accounts are due at Companies House by 11 May 2027 (in 211 days), covering the period to 31 August 2026.
When is Sentinel Integrated Systems 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 10 August 2026, due by 10 August 2027, and one for the period to 31 August 2026, due by 31 August 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sentinel Integrated Systems Limited still trading?
Sentinel Integrated Systems 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 Sentinel Integrated Systems Limited do?
Sentinel Integrated Systems Limited is registered under Electrical installation (SIC 43210).
How old is Sentinel Integrated Systems Limited?
Sentinel Integrated Systems Limited was incorporated on 11 August 2025, 1 year ago.
Who runs Sentinel Integrated Systems Limited?
Sentinel Integrated Systems Limited has 2 active directors, the longest-serving appointed in Aug 2025. Their names and service addresses are on the Companies House register.
Who owns Sentinel Integrated Systems Limited?
2 people or companies have significant control of Sentinel Integrated Systems Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Sentinel Integrated Systems 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 Sentinel Integrated Systems 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.