- Companies
- Electricians
- Edinburgh
- N Watt and Son Limited
N Watt and Son Limited
- Company number
- SC242698
- Incorporated
- 22 Jan 200323 years trading
- Registered office
- 17A Southfield Farm Grove, Edinburgh, EH15 1SR
- Nature of business
- Electrical installation
N Watt and Son Limited is a 23-year-old private limited company registered in Edinburgh, company number SC242698, one of 164 electrical contractors in Edinburgh. 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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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 £9,809 (-1.8%) on the year before, to £535K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £114K against £46K owed within a year: 2.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £535K | £86K | £114K | £46K | 0 |
| 31 Mar 2024 | £545K | £104K | £134K | £55K | 4 |
| 31 Mar 2023 | £453K | £71K | £119K | £94K | 4 |
| 31 Mar 2022 | £440K | £91K | £131K | £62K | 5 |
| 31 Mar 2021 | £474K | £130K | £170K | £37K | 5 |
| 31 Mar 2020 | £458K | £213K | £324K | £146K | 4 |
| 31 Mar 2019 | £403K | £99K | £163K | £61K | |
| 31 Mar 2018 | £356K | £110K | £210K | £87K | 4 |
| 31 Mar 2017 | £328K | £51K | £105K | £19K | 4 |
| 31 Mar 2016 | £355K | £103K | £165K | £40K |
Where N Watt and Son Limited is registered
The registered office is in Edinburgh (EH15), in the City of Edinburgh local authority area, Scotland. Show EH15 1SR on a map.
Other trade companies in EH15
- DRZ Systems LtdElectricians
- Olivan LimitedProperty developers
- Leo Hector LtdMotor traders
- Car Wash Valet LtdMechanics and garages
- Milton Developers LtdProperty developers
- Garage Roof Scotland LtdRoofers
- MSK World LtdMotor traders
- Modou and Musa LtdCleaning companies
What happens if N Watt and Son 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 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
- SC242698
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 January 2003 (23 years ago)
- Registered office
- 17A Southfield Farm Grove, Edinburgh, EH15 1SR
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 22 January 2026
- Charges (mortgages)
- 2 outstanding of 2 registered
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 Edinburgh
Other active electrical contractors registered in Edinburgh.
- Nexum LLB Group Ltd2015
- NFD Electrical Ltd2026
- Northern Lighting Controls Ltd2026
- Omega Electrical Works Ltd2025
- Optical Lighting Limited2007
- Oryx Energy Ltd2026
- P. Blackhall Ltd.1994
- PB Services (Electrical Contractors) Ltd2024
All electrical contractors in Edinburgh · All trades in Edinburgh · Electricians across the UK
Frequently asked questions
When are N Watt and Son Limited's accounts due?
N Watt and Son Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is N Watt and Son Limited'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 N Watt and Son Limited still trading?
N Watt and Son 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 N Watt and Son Limited do?
N Watt and Son Limited is registered under Electrical installation (SIC 43210).
How old is N Watt and Son Limited?
N Watt and Son Limited was incorporated on 22 January 2003, 23 years ago.
What is the penalty if N Watt and Son 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 N Watt and Son 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.