- Companies
- Electricians
- Doncaster
- G M Security Networks Limited
G M Security Networks Limited
- Company number
- 13533550
- Incorporated
- 27 Jul 20215 years trading
- Registered office
- 19 Low Road West, Warmsworth, Doncaster, South Yorkshire, DN4 9JZ
- Nature of business
- Electrical installation
G M Security Networks Limited is a 5-year-old private limited company registered in Doncaster, company number 13533550, one of 215 electrical contractors in Doncaster. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £232K (+240.8%) on the year before, to £329K.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £489K against £197K owed within a year: 2.5 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £329K | £489K | £197K | 1 | |
| 31 Jul 2024 | £96K | £135K | £47K | 1 | |
| 31 Jul 2023 | £57K | £86K | £40K | 1 | |
| 31 Jul 2022 | £23K | £14K | 1 |
Where G M Security Networks Limited is registered
The registered office is in Doncaster (DN4), in the Doncaster local authority area, Yorkshire and The Humber. Show DN4 9JZ on a map.
Other trade companies in DN4
- Krishtal Cleaning LtdCleaning companies
- Regional Services & Maintenance LtdElectricians
- Kristan Carr E&M LimitedElectricians
- Brookes Home and Heating LtdBuilders
- 1ST Ground Construction Management Services LtdProperty developers
- Speedy Transport Doncaster LtdMechanics and garages
- Team Clean Group Commercial LtdCleaning companies
- Veridian Guard LtdInstallers
What happens if G M Security Networks 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 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
- 13533550
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 July 2021 (5 years ago)
- Registered office
- 19 Low Road West, Warmsworth, Doncaster, South Yorkshire, DN4 9JZ
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 26 July 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 Doncaster
Other active electrical contractors registered in Doncaster.
- G.X Electrical Ltd2024
- Gary Cross Electrical (Doncaster) Limited2014
- Geddes Electrical Services Limited2015
- Gigawatt Industries Ltd2022
- Gillard & Young Electrical Ltd2008
- Global Electric and Mechanical Repair Ltd2020
- Graham Towler Electrical Limited2023
- GWL Solutions Limited2018
All electrical contractors in Doncaster · All trades in Doncaster · Electricians across the UK
Frequently asked questions
When are G M Security Networks Limited's accounts due?
G M Security Networks Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is G M Security Networks Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is G M Security Networks Limited still trading?
G M Security Networks 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 G M Security Networks Limited do?
G M Security Networks Limited is registered under Electrical installation (SIC 43210).
How old is G M Security Networks Limited?
G M Security Networks Limited was incorporated on 27 July 2021, 5 years ago.
What is the penalty if G M Security Networks 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 G M Security Networks 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.