- Companies
- Installers
- Plymouth
- Acs Fire Alarms Ltd
Acs Fire Alarms Ltd
- Company number
- 11385879
- Incorporated
- 29 May 20188 years trading
- Registered office
- 95 Mount Gould Road, Plymouth, PL4 7PX
- Nature of business
- Other construction installation
Acs Fire Alarms Ltd is a 8-year-old private limited company registered in Plymouth, company number 11385879, one of 54 installation companies (insulation, lifts, shutters and similar) in Plymouth. Companies House shows its accounts as overdue: they were due on 31 May 2021.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Acs Fire Alarms Ltd is registered
The registered office is in Plymouth (PL4), in the Plymouth local authority area, South West. Show PL4 7PX on a map.
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What happens if Acs Fire Alarms Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2021 to 30 Jun 2021 | £150 |
| 1 to 3 months late | 1 Jul 2021 to 31 Aug 2021 | £375 |
| 3 to 6 months late | 1 Sep 2021 to 30 Nov 2021 | £750 |
| More than 6 months late | From 1 Dec 2021 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2021 | £200 |
| 3 months late | 30 Nov 2021 | another £200 |
| 6 months late | 28 Feb 2022 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2022 | 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
- 11385879
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 May 2018 (8 years ago)
- Registered office
- 95 Mount Gould Road, Plymouth, PL4 7PX
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2019
- Last confirmation statement
- 17 May 2025
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 Plymouth
Other active installation companies (insulation, lifts, shutters and similar) registered in Plymouth.
- Air Vent Services Ltd2018
- All Access Automation Ltd2024
- Bailey Partnership (Solutions) Ltd2025
- BDM Fenestrations Ltd2025
- Better Insulation Solutions Limited2024
- Broadoak Construction (Devon) Limited2008
- C.A.M Drylining Ltd2025
- Cdi Waterproofing Services Ltd2021
All installation companies (insulation, lifts, shutters and similar) in Plymouth · All trades in Plymouth · Installers across the UK
Frequently asked questions
When are Acs Fire Alarms Ltd's accounts due?
Acs Fire Alarms Ltd's accounts were due at Companies House on 31 May 2021 and the register shows them as overdue.
When is Acs Fire Alarms 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 31 May 2020, due by 31 May 2021, and one for the period to 31 August 2020, due by 31 August 2021. Corporation tax is payable 9 months and 1 day after the end of each.
Is Acs Fire Alarms Ltd still trading?
Acs Fire Alarms Ltd is listed as active on the Companies House register (checked 13 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 Acs Fire Alarms Ltd do?
Acs Fire Alarms Ltd is registered under Other construction installation (SIC 43290).
How old is Acs Fire Alarms Ltd?
Acs Fire Alarms Ltd was incorporated on 29 May 2018, 8 years ago.
What is the penalty if Acs Fire Alarms 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 Acs Fire Alarms Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.