- Companies
- Electricians
- Wigan
- Northern Alarms Security Systems Limited
Northern Alarms Security Systems Limited
- Company number
- 08648085
- Incorporated
- 13 Aug 201313 years trading
- Registered office
- 41 Bridgeman Terrace, Wigan, Lancashire, WN1 1TT
- Nature of business
- Electrical installation
Northern Alarms Security Systems Limited is a 13-year-old private limited company registered in Wigan, company number 08648085, one of 186 electrical contractors in Wigan. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Northern Alarms Security Systems LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £14K (+268.4%) on the year before, to £19K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £36K against £31K owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £19K | £36K | £31K | 0 | |
| 31 Aug 2024 | £5,044 | £28K | £35K | 1 | |
| 31 Aug 2023 | £11K | £30K | £36K | 1 | |
| 31 Aug 2022 | £35K | £42K | £26K | 1 | |
| 31 Aug 2021 | £53K | £43K | £19K | 1 | |
| 31 Aug 2020 | £34K | £43K | £20K | 1 | |
| 31 Aug 2019 | £41K | £61K | £29K | 1 | |
| 31 Aug 2018 | £34K | £40K | £14K | ||
| 31 Aug 2017 | £33K | £49K | £30K | ||
| 31 Aug 2016 | £16K | £23K | £41K | £32K |
Where Northern Alarms Security Systems Limited is registered
The registered office is in Wigan (WN1), in the Wigan local authority area, North West. Show WN1 1TT on a map.
Other trade companies in WN1
- Flashnet LtdCleaning companies
- Castlefield Construction LimitedProperty developers
- Gareths Patios and Paving LimitedFinishing trades
- CJM Scaffolding LtdScaffolders
- PJ Roofing and Plastics LtdBuilders
- Wigan Direct Services LtdBuilders
- Westhead Gates LimitedSpecialist contractors
- Crosby Lifts LimitedMachinery repair and installation
Also registered at this address
19 other companies use the same registered office as Northern Alarms Security Systems Limited.
- Alliance Construction Group LtdBuilders
- Aspect Electrical Contractors NW LtdElectricians
- Chores UK LtdCleaning companies
- Classic 2 Modern Car Parts LtdMotor traders
- Dakota Construction LimitedBuilders
- Delta Automation LimitedCivil engineering
- H Tonge & Sons LimitedFinishing trades
- H12 Enterprises LtdRepair services
- Longworth Interiors LtdJoiners and carpenters
- McBride Electrical Services LimitedElectricians
- Mde Security Solutions LtdInstallers
- Nu Homes Development Projects LimitedProperty developers
- Nu Homes LtdInstallers
- Open Access Services Ltd.Specialist contractors
- Positive Power Installations LimitedElectricians
- Reinforced Concrete Structures LimitedCivil engineering
- TJ Construction (Wigan) LimitedProperty developers
- TJ Joinery LimitedJoiners and carpenters
- Vale of Wigan LimitedFinishing trades
What happens if Northern Alarms Security 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 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
- 08648085
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 August 2013 (13 years ago)
- Registered office
- 41 Bridgeman Terrace, Wigan, Lancashire, WN1 1TT
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 10 September 2025
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 Wigan
Other active electrical contractors registered in Wigan.
- Northwest Electrical Solutions Ltd2026
- NW Fire & Security Limited2020
- Ohl Solutions Limited2017
- Pal Electrical (NW) Limited2022
- Pas Electrical Contractors Ltd2009
- Paul James Electrical Ltd2023
- PC Electrical Ltd2024
- Peak Power Solutions NW Limited2025
All electrical contractors in Wigan · All trades in Wigan · Electricians across the UK
Frequently asked questions
When are Northern Alarms Security Systems Limited's accounts due?
Northern Alarms Security Systems Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Northern Alarms Security Systems Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Northern Alarms Security Systems Limited still trading?
Northern Alarms Security Systems Limited 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 Northern Alarms Security Systems Limited do?
Northern Alarms Security Systems Limited is registered under Electrical installation (SIC 43210).
How old is Northern Alarms Security Systems Limited?
Northern Alarms Security Systems Limited was incorporated on 13 August 2013, 13 years ago.
What is the penalty if Northern Alarms Security 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 Northern Alarms Security Systems Limited 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.