- Companies
- Civil engineering
- Harrow
- Gsparks Electrical Services Ltd
Gsparks Electrical Services Ltd
- Company number
- 12921620
- Incorporated
- 2 Oct 20206 years trading
- Registered office
- 16 Parkfield Road, Harrow, HA2 8LB
- Nature of business
- Construction of utility projects for electricity and telecommunications; Electrical installation; Other specialised construction activities n.e.c.
Gsparks Electrical Services Ltd is a 6-year-old private limited company registered in Harrow, company number 12921620, one of 121 civil engineering contractors in Harrow. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 down £7,704 (-83%) on the year before, to £1,583.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £7,532 against £5,949 owed within a year: 1.3 times cover.
- 1 employee on average during the year.
- 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 Oct 2025 | £1,583 | £1 | £7,532 | £5,949 | 1 |
| 31 Oct 2024 | £9,287 | £1 | £29K | £20K | 1 |
| 31 Oct 2023 | £15K | £4,366 | £33K | £18K | 1 |
| 31 Oct 2022 | £31K | £11K | £49K | £19K | 1 |
| 31 Oct 2021 | £24K | £60 | £31K | £6,864 | 1 |
Where Gsparks Electrical Services Ltd is registered
The registered office is in Harrow (HA2), in the Harrow local authority area, London. Show HA2 8LB on a map.
Other trade companies in HA2
- KJP Engineering LtdElectricians
- JNJ Engineering LimitedCivil engineering
- Notting Hill Sew LtdRepair services
- Grandwellautos LtdMotor traders
- Multisteel Powdercoating LtdPainters and decorators
- Neon Systems LtdElectricians
- Firstclass Facilities LtdCleaning companies
- PMD Construct LtdBuilders
What happens if Gsparks Electrical Services 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 12921620
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 October 2020 (6 years ago)
- Registered office
- 16 Parkfield Road, Harrow, HA2 8LB
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
Electrical installation (SIC 43210)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 1 October 2025
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Harrow
Other active civil engineering contractors registered in Harrow.
- Harishwin Engineering Ltd2012
- Hav Services Ltd2020
- Hemaa Ltd2026
- Image Builders Limited2013
- J & M Resurfacing Limited2003
- J Kara Ltd2013
- J O S Construction Ltd2008
- Jamie Rail Ltd2024
All civil engineering contractors in Harrow · All trades in Harrow · Civil engineering across the UK
Frequently asked questions
When are Gsparks Electrical Services Ltd's accounts due?
Gsparks Electrical Services Ltd's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Gsparks Electrical Services Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Gsparks Electrical Services Ltd still trading?
Gsparks Electrical Services 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 Gsparks Electrical Services Ltd do?
Gsparks Electrical Services Ltd is registered under Construction of utility projects for electricity and telecommunications (SIC 42220); Electrical installation (SIC 43210); Other specialised construction activities n.e.c. (SIC 43999).
How old is Gsparks Electrical Services Ltd?
Gsparks Electrical Services Ltd was incorporated on 2 October 2020, 6 years ago.
What is the penalty if Gsparks Electrical Services 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 Gsparks Electrical Services 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.