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- Mastertech Electrical Services Ltd
Company profile · Electricians
Mastertech Electrical Services Ltd
Mastertech Electrical Services Ltd is a 14-year-old private limited company registered in London, company number 07922490, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 May 2026, as filed at Companies House.
Mastertech Electrical Services 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 down £20 (-0.6%) on the year before, to £3,477.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £3,477 | £13K | £9,808 | 1 | |
| 31 May 2025 | £3,497 | £9,820 | £6,323 | 1 | |
| 31 May 2024 | -£4,296 | £1,672 | £6,968 | 1 | |
| 31 May 2023 | -£752 | £7,001 | £11K | 1 | |
| 31 May 2022 | £1,582 | £7,274 | £10K | 1 | |
| 31 May 2021 | £5,552 | £9,717 | £11K | 1 | |
| 31 May 2020 | £1,833 | £2,411 | £8,778 | 1 | |
| 31 May 2019 | -£289 | £673 | £673 | £962 | 0 |
| 31 May 2018 | £543 | £3,980 | £4,890 | £4,347 | 0 |
| 31 May 2017 | £1,824 | £175 | £1,824 | £0 |
Where Mastertech Electrical Services Ltd is registered
The registered office is in London (NW7), in the Barnet local authority area, London. Show NW7 2AS on a map.
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What happens if Mastertech 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 07922490
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 January 2012 (14 years ago)
- Registered office
- Churchill House,120, Bunns Lane, London, NW7 2AS
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2026
- Last confirmation statement
- 10 February 2026
- Previous names
- Masterpro Building Services Ltd (until 26 Oct 2016)
Master Tech Electrical Services Ltd (until 24 Oct 2016)
Most Finest Electrical Services Ltd (until 4 Aug 2016)
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.
- Mastir Ltd2026
- Matrix Audio Visual Specialists Ltd2013
- Matrix Electric Ltd2025
- Matt & Ricky Electrical Services Ltd2014
- Matthew P Scott Ltd2022
- Maulyte Limited1999
- Maven Electrical Limited2009
- Maxfri Systems Limited2023
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Mastertech Electrical Services Ltd's accounts due?
Mastertech Electrical Services Ltd's next accounts are due at Companies House by 29 February 2028 (in 505 days), covering the period to 31 May 2027.
When is Mastertech Electrical Services Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Mastertech Electrical Services Ltd still trading?
Mastertech 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 Mastertech Electrical Services Ltd do?
Mastertech Electrical Services Ltd is registered under Electrical installation (SIC 43210).
How old is Mastertech Electrical Services Ltd?
Mastertech Electrical Services Ltd was incorporated on 24 January 2012, 14 years ago.
What is the penalty if Mastertech 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 Mastertech 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.