- Companies
- Electricians
- London
- A&S Spark Gas Limited
A&S Spark Gas Limited
- Company number
- 17472132
- Incorporated
- 21 Sep 2026
- Registered office
- 53 C Unimix House, Abbey Road, London, NW10 7TR
- Nature of business
- Electrical installation
A&S Spark Gas Limited is a newly incorporated private limited company registered in London, company number 17472132, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 21 June 2028, and its first CT600 is due at HMRC on 20 September 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where A&S Spark Gas Limited is registered
The registered office is in London (NW10), in the Brent local authority area, London. Show NW10 7TR on a map.
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- 46 Electrical LtdElectricians
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- Wrights Building Services LtdFinishing trades
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Also registered at this address
1 other company uses the same registered office as A&S Spark Gas Limited.
- Eddie Builder Service LimitedBuilders
What happens if A&S Spark Gas 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 21 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 22 Jun 2028 to 21 Jul 2028 | £150 |
| 1 to 3 months late | 22 Jul 2028 to 21 Sep 2028 | £375 |
| 3 to 6 months late | 22 Sep 2028 to 21 Dec 2028 | £750 |
| More than 6 months late | From 22 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2029 | 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
- 17472132
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 September 2026
- Registered office
- 53 C Unimix House, Abbey Road, London, NW10 7TR
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
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 London
Other active electrical contractors registered in London.
- A-Z Electrical & Heating Limited2012
- A-Z General Maintenance Limited2021
- A-Z Heating Engineers Ltd2023
- A.A Property Maintenance Services Ltd2025
- A.B.G Construction UK Ltd2021
- A.H Electrics Limited2018
- A.L Maintenance Limited2025
- A.M Electrical Solutions LDN Limited2025
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are A&S Spark Gas Limited's accounts due?
A&S Spark Gas Limited's next accounts are due at Companies House by 21 June 2028 (in 617 days), covering the period to 30 September 2027.
When is A&S Spark Gas Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 20 September 2027, due by 20 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is A&S Spark Gas Limited still trading?
A&S Spark Gas 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 A&S Spark Gas Limited do?
A&S Spark Gas Limited is registered under Electrical installation (SIC 43210).
How old is A&S Spark Gas Limited?
A&S Spark Gas Limited was incorporated on 21 September 2026, less than a year ago.
What is the penalty if A&S Spark Gas 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 A&S Spark Gas 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.