- Companies
- Electricians
- Stevenage
- Sontec Electrical Services Limited
Sontec Electrical Services Limited
- Company number
- 04906461
- Incorporated
- 21 Sep 200323 years trading
- Registered office
- Unit 9 Wedgewood Gate, Wedgewood Way, Stevenage, Herts, SG1 4QB
- Nature of business
- Electrical installation
Sontec Electrical Services Limited is a 23-year-old private limited company registered in Stevenage, company number 04906461, one of 115 electrical contractors in Stevenage. Its next accounts are due at Companies House on 29 June 2027, and the CT600 for the period to 29 September 2026 is due at HMRC on 29 September 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 £101K (+167%) on the year before, to £162K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £433K against £242K owed within a year: 1.8 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 |
|---|---|---|---|---|---|
| 29 Sep 2025 | £162K | £32K | £433K | £242K | 0 |
| 29 Sep 2024 | £61K | £5,219 | £342K | £285K | 2 |
| 29 Sep 2023 | £82K | £12K | £178K | £64K | 2 |
| 29 Sep 2022 | £4,764 | £6,118 | £162K | £131K | 2 |
| 29 Sep 2021 | -£66K | £13K | £166K | £200K | 1 |
| 29 Sep 2020 | £107K | £13K | £212K | £87K | 0 |
| 29 Sep 2019 | £128K | £36K | £300K | £175K | 0 |
| 30 Sep 2018 | £137K | £16K | £279K | £150K | 0 |
| 30 Sep 2017 | £87K | £50K | £144K | £60K | 0 |
| 30 Sep 2016 | £70K | £26K | £93K | £29K | 0 |
Where Sontec Electrical Services Limited is registered
The registered office is in Stevenage (SG1), in the Stevenage local authority area, East of England. Show SG1 4QB on a map.
Other trade companies in SG1
- Masterplumbing&Heating LtdPlumbers and heating engineers
- Ohiggins Property Solutions LtdProperty developers
- Bird Detailing LtdCleaning companies
- Tedted Engineering LtdMechanics and garages
- DSS Facilities LtdFacilities management
- Macala Engineering LimitedSpecialist contractors
- Regency Detailing LtdMechanics and garages
- Ashtons Property Group LtdProperty developers
What happens if Sontec Electrical Services 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 29 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Jun 2027 to 29 Jul 2027 | £150 |
| 1 to 3 months late | 30 Jul 2027 to 29 Sep 2027 | £375 |
| 3 to 6 months late | 30 Sep 2027 to 29 Dec 2027 | £750 |
| More than 6 months late | From 30 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Sep 2027 | £200 |
| 3 months late | 29 Dec 2027 | another £200 |
| 6 months late | 29 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 Sep 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
- 04906461
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 September 2003 (23 years ago)
- Registered office
- Unit 9 Wedgewood Gate, Wedgewood Way, Stevenage, Herts, SG1 4QB
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 29 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 29 September 2025
- Last confirmation statement
- 12 March 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 Stevenage
Other active electrical contractors registered in Stevenage.
- SR Palette Electrical Services Ltd2020
- SSM Electrical Services Ltd2022
- Stevenage Electrical Engineers Ltd2023
- Stimpsons Electrical Solutions Limited2021
- Sun True Energy Ltd2026
- Synergy Electrical Systems Ltd2026
- Tezz Electrical Limited2025
- Titan Fire Ltd2023
All electrical contractors in Stevenage · All trades in Stevenage · Electricians across the UK
Frequently asked questions
When are Sontec Electrical Services Limited's accounts due?
Sontec Electrical Services Limited's next accounts are due at Companies House by 29 June 2027 (in 259 days), covering the period to 29 September 2026.
When is Sontec Electrical Services Limited's CT600 due?
The CT600 for the period to 29 September 2026 is due at HMRC by 29 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 June 2027.
Is Sontec Electrical Services Limited still trading?
Sontec Electrical Services 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 Sontec Electrical Services Limited do?
Sontec Electrical Services Limited is registered under Electrical installation (SIC 43210).
How old is Sontec Electrical Services Limited?
Sontec Electrical Services Limited was incorporated on 21 September 2003, 23 years ago.
What is the penalty if Sontec Electrical Services 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 Sontec Electrical Services 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.