- Companies
- Electricians
- Matlock
- T.J. Mastin Electrical Limited
T.J. Mastin Electrical Limited
- Company number
- 11373193
- Incorporated
- 21 May 20188 years trading
- Registered office
- 273 Chesterfield Road, Chesterfield Road, Matlock, DE4 5LE
- Nature of business
- Electrical installation
T.J. Mastin Electrical Limited is a 8-year-old private limited company registered in Matlock, company number 11373193, one of 15 electrical contractors in Matlock. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £7,622 (+1.5%) on the year before, to £522K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £627K against £175K owed within a year: 3.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £522K | £549K | £627K | £175K | 1 |
| 31 May 2024 | £515K | £733K | £787K | £295K | 1 |
| 31 May 2023 | £144K | £317K | £163K | 2 | |
| 31 May 2022 | £70K | £65K | £149K | £66K | 1 |
| 31 May 2021 | -£14K | £34K | £44K | £5,502 | 1 |
| 31 May 2020 | -£9,679 | £23K | £29K | £4,613 | 1 |
| 31 May 2019 | -£3,723 | £30K |
Where T.J. Mastin Electrical Limited is registered
The registered office is in Matlock (DE4), in the Derbyshire Dales local authority area, East Midlands. Show DE4 5LE on a map.
Other trade companies in DE4
- Wright Steel Solutions LtdBuilders
- Z&E Electrical Solutions LtdMachinery repair and installation
- Matlock Walling LtdCivil engineering
- Instatec (Services) LimitedSpecialist contractors
- L.D.E Automotive LimitedMotor traders
- Derbyshire Accident Repair LtdMechanics and garages
- Peak Edge Design and Build LtdBuilders
- Dickiedido LimitedPlumbers and heating engineers
What happens if T.J. Mastin Electrical 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11373193
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 May 2018 (8 years ago)
- Registered office
- 273 Chesterfield Road, Chesterfield Road, Matlock, DE4 5LE
- 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 2025
- Last confirmation statement
- 20 May 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 Matlock
Other active electrical contractors registered in Matlock.
- Tor Electrical (Matlock) Limited2001
- Vee Electrical Services Ltd2024
- Barnsdall Electrical Services Limited2010
- Critical Electrical Services Limited2024
- Derbyshire Dales Electrical Services Limited2010
- El Magico Ltd2025
- H Strange & Son Limited2010
- Hopkinson Engineering Company Limited2022
All electrical contractors in Matlock · All trades in Matlock · Electricians across the UK
Frequently asked questions
When are T.J. Mastin Electrical Limited's accounts due?
T.J. Mastin Electrical Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is T.J. Mastin Electrical Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is T.J. Mastin Electrical Limited still trading?
T.J. Mastin Electrical 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 T.J. Mastin Electrical Limited do?
T.J. Mastin Electrical Limited is registered under Electrical installation (SIC 43210).
How old is T.J. Mastin Electrical Limited?
T.J. Mastin Electrical Limited was incorporated on 21 May 2018, 8 years ago.
What is the penalty if T.J. Mastin Electrical 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 T.J. Mastin Electrical 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.