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- Mains Electrical Engineering Ltd
Company profile · Electricians
Mains Electrical Engineering Ltd
Mains Electrical Engineering Ltd is a 4-year-old private limited company registered in Enfield, company number 13999452, one of 134 electrical contractors in Enfield. 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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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House.
Mains Electrical Engineering Ltd over the years
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 £65K (+55.7%) on the year before, to £182K.
- Current assets of £208K against £26K owed within a year: 8.0 times cover.
- 3 employees on average, up from 1 the year before.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £182K | £208K | £26K | 3 | |
| 31 Mar 2024 | £117K | £135K | £18K | 1 | |
| 31 Mar 2023 | £53K | £72K | £20K | 1 |
Where Mains Electrical Engineering Ltd is registered
The registered office is in Enfield (EN1), in the Enfield local authority area, London. Show EN1 1SQ on a map.
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What happens if Mains Electrical Engineering 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
- 13999452
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 March 2022 (4 years ago)
- Registered office
- 227 Great Cambridge Road, Enfield, Middlesex, EN1 1SQ
- Nature of business
- Electrical installation (SIC 43210)
Other building completion and finishing (SIC 43390) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 16 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 Enfield
Other active electrical contractors registered in Enfield.
- MC Construction & Electrical Contractors Limited2011
- Meka Electrical Ltd2024
- Mode Panel Limited2025
- MR Captain Ltd2020
- MR Volta Electrical Ltd2019
- MTG Electrical Services Ltd2021
- Munns Limited1975
- N&S Electricals London Ltd2025
All electrical contractors in Enfield · All trades in Enfield · Electricians across the UK
Frequently asked questions
When are Mains Electrical Engineering Ltd's accounts due?
Mains Electrical Engineering 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 Mains Electrical Engineering 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 Mains Electrical Engineering Ltd still trading?
Mains Electrical Engineering 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 Mains Electrical Engineering Ltd do?
Mains Electrical Engineering Ltd is registered under Electrical installation (SIC 43210); Other building completion and finishing (SIC 43390).
How old is Mains Electrical Engineering Ltd?
Mains Electrical Engineering Ltd was incorporated on 24 March 2022, 4 years ago.
What is the penalty if Mains Electrical Engineering 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 Mains Electrical Engineering 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.