- Companies
- Machinery repair and installation
- Mountain Ash
- Smart Electrical Systems Ltd
Smart Electrical Systems Ltd
- Company number
- 07983512
- Incorporated
- 9 Mar 201214 years trading
- Registered office
- c/o Andrew Williams, The Gti Suite Ty Menter Navigation Park, Abercynon, Mountain Ash, Mid Glamorgan, CF45 4SN
- Nature of business
- Repair of electrical equipment; Construction of other civil engineering projects n.e.c.; Electrical installation; Other engineering activities
Smart Electrical Systems Ltd is a 14-year-old private limited company registered in Mountain Ash, company number 07983512, one of 7 machinery repair and installation companies in Mountain Ash. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £84K (+8.9%) on the year before, to £1M.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £1.2M against £659K owed within a year: 1.8 times cover.
- 13 employees on average, down from 16 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £1M | £308K | £1.2M | £659K | 13 |
| 31 Mar 2024 | £946K | £369K | £1.1M | £411K | 16 |
| 31 Mar 2023 | £980K | £267K | £1.2M | £468K | 15 |
| 31 Mar 2022 | £810K | £303K | £944K | £331K | 13 |
| 31 Mar 2021 | £856K | £241K | £913K | £394K | 17 |
Where Smart Electrical Systems Ltd is registered
The registered office is in Mountain Ash (CF45), in the Rhondda Cynon Taf local authority area, Wales. Show CF45 4SN on a map.
Other trade companies in CF45
- Pro Guard Home Improvements LtdRoofers
- Smiths Rendering & Resin LtdBuilders
- Ironrootslandscaping LimitedLandscapers and gardeners
- Lee Griffiths Contractors LimitedFinishing trades
- Theglossboss LtdCleaning companies
- Brickzen Constructions LtdInstallers
- STR Drylining LtdBuilders
- Greenvoltinfrastructure LtdCivil engineering
What happens if Smart Electrical Systems 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 07983512
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 March 2012 (14 years ago)
- Registered office
- c/o Andrew Williams, The Gti Suite Ty Menter Navigation Park, Abercynon, Mountain Ash, Mid Glamorgan, CF45 4SN
- Nature of business
- Repair of electrical equipment (SIC 33140)
Construction of other civil engineering projects n.e.c. (SIC 42990)
Electrical installation (SIC 43210)
Other engineering activities (SIC 71129) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 9 March 2026
- Charges (mortgages)
- 5 outstanding of 6 registered
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Mountain Ash
Other active machinery repair and installation companies registered in Mountain Ash.
- T1 Safety & Survey Ltd2017
- Aeroresponse Holdings Limited2011
- Aeroresponse Ltd2002
- All Plant Operator and Repair Services Limited2021
- Express Pumps Ltd2008
- Jam Wind Ltd2022
All machinery repair and installation companies in Mountain Ash · All trades in Mountain Ash · Machinery repair and installation across the UK
Frequently asked questions
When are Smart Electrical Systems Ltd's accounts due?
Smart Electrical Systems Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Smart Electrical Systems Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Smart Electrical Systems Ltd still trading?
Smart Electrical Systems 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 Smart Electrical Systems Ltd do?
Smart Electrical Systems Ltd is registered under Repair of electrical equipment (SIC 33140); Construction of other civil engineering projects n.e.c. (SIC 42990); Electrical installation (SIC 43210); Other engineering activities (SIC 71129).
How old is Smart Electrical Systems Ltd?
Smart Electrical Systems Ltd was incorporated on 9 March 2012, 14 years ago.
What is the penalty if Smart Electrical Systems 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 Smart Electrical Systems 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.