- Companies
- Installers
- Glasgow
- Sonic Alarms Ltd
Sonic Alarms Ltd
- Company number
- SC900109
- Incorporated
- 24 Aug 2026
- Registered office
- 41 Charles Crescent, Glasgow, G63 0BU
- Nature of business
- Other construction installation
Sonic Alarms Ltd is a newly incorporated private limited company registered in Glasgow, company number SC900109, one of 331 installation companies (insulation, lifts, shutters and similar) in Glasgow. Its next accounts are due at Companies House on 24 May 2028, and its first CT600 is due at HMRC on 23 August 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 Sonic Alarms Ltd is registered
The registered office is in Glasgow (G63), in the Stirling local authority area, Scotland. Show G63 0BU on a map.
Other trade companies in G63
- Cameron Plumbing & Heating LtdPlumbers and heating engineers
- Solar 4 Scotland LimitedMachinery repair and installation
- Conic Carpentry LtdJoiners and carpenters
- Ih Fire and Security LtdElectricians
- Malcom Homes LimitedProperty developers
- Electric Gates Experts LtdElectricians
- Duncryne Contracts LtdSpecialist contractors
- Bothan Builds LtdSpecialist contractors
What happens if Sonic Alarms 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 24 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 May 2028 to 24 Jun 2028 | £150 |
| 1 to 3 months late | 25 Jun 2028 to 24 Aug 2028 | £375 |
| 3 to 6 months late | 25 Aug 2028 to 24 Nov 2028 | £750 |
| More than 6 months late | From 25 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2028 | £200 |
| 3 months late | 30 Nov 2028 | another £200 |
| 6 months late | 28 Feb 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- SC900109
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 August 2026
- Registered office
- 41 Charles Crescent, Glasgow, G63 0BU
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 August (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 Glasgow
Other active installation companies (insulation, lifts, shutters and similar) registered in Glasgow.
- Sonic Pulse Ltd2021
- Southside Joinery & Construction Ltd2025
- Sportscapes Europe Limited2025
- Sportscapes Limited2024
- Ssekkem Offshore Ltd2026
- SSG Retrofit Ltd2023
- Star Five Solutions Ltd2025
- Stellify Fencing Solutions Limited2023
All installation companies (insulation, lifts, shutters and similar) in Glasgow · All trades in Glasgow · Installers across the UK
Frequently asked questions
When are Sonic Alarms Ltd's accounts due?
Sonic Alarms Ltd's next accounts are due at Companies House by 24 May 2028 (in 589 days), covering the period to 31 August 2027.
When is Sonic 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 23 August 2027, due by 23 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Sonic Alarms Ltd still trading?
Sonic Alarms 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 Sonic Alarms Ltd do?
Sonic Alarms Ltd is registered under Other construction installation (SIC 43290).
How old is Sonic Alarms Ltd?
Sonic Alarms Ltd was incorporated on 24 August 2026, less than a year ago.
What is the penalty if Sonic 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 Sonic Alarms 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.