- Companies
- Machinery repair and installation
- Norwich
- Castle Electrical Services Limited
Castle Electrical Services Limited
- Company number
- 07027862
- Incorporated
- 23 Sep 200917 years trading
- Registered office
- 34 Wentworth Green, Norwich, NR4 6AE
- Nature of business
- Repair of electrical equipment
Castle Electrical Services Limited is a 17-year-old private limited company registered in Norwich, company number 07027862, one of 153 machinery repair and installation companies in Norwich. 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 £330 (-0.6%) on the year before, to £56K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £95K against £41K owed within a year: 2.3 times cover.
- 1 employee on average, up from 0 the year before.
- 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 | £56K | £95K | £41K | 1 | |
| 31 Mar 2024 | £56K | £89K | £35K | 0 | |
| 31 Mar 2023 | £61K | £78K | £20K | 0 | |
| 31 Mar 2022 | £64K | £90K | £29K | 0 | |
| 31 Mar 2021 | £16K | £31K | £19K | 0 | |
| 31 Mar 2020 | £9,130 | £19K | £14K | ||
| 31 Mar 2019 | £15K | £26K | £18K | ||
| 31 Mar 2018 | £9,534 | £16K | £13K | ||
| 31 Mar 2017 | £11K | £19K | £15K | ||
| 31 Mar 2016 | £908 | £5,239 | £11K | £13K |
Public contracts won
Castle Electrical Services Limited has 13 public sector contract awards on record; the ones with their own published value total £360K, from 2019 to 2026. Source: Contracts Finder and Find a Tender award notices. For 1 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Norwich City Services Limited12 awards
- Norse Commercial Services Ltd1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Norwich City Services Limited | Open Order - Various Electrical Works | £30K | 7 Apr 2026 |
| Norwich City Services Limited | Open order - Electrical Works - Voids | £30K | 2 Mar 2026 |
| Norwich City Services Limited | Open order - Various Electrical Works | £30K | 10 Feb 2026 |
| Norwich City Services Limited | Open order Electrical Works | £30K | 5 Jan 2026 |
| Norwich City Services Limited | Open order Electrical Works | £30K | 2 Dec 2025 |
| Norwich City Services Limited | Open order - Various Electrical Works - Voids | £30K | 27 Nov 2025 |
| Norwich City Services Limited | Open Order - Electrical Void Works | £30K | 20 Oct 2025 |
| Norwich City Services Limited | Order order for Various Electrical Works | £30K | 8 Sep 2025 |
| Norwich City Services Limited | Open Order for Electrical Works | £30K | 26 Aug 2025 |
| Norwich City Services Limited | Various Electrical Works for Void Works Team | £30K | 14 Jul 2025 |
Showing the 10 most recent of 13.
Where Castle Electrical Services Limited is registered
The registered office is in Norwich (NR4), in the Norwich local authority area, East of England. Show NR4 6AE on a map.
Other trade companies in NR4
- Spalding Projects LtdProperty developers
- Hunter & May LtdSpecialist contractors
- Rahat Motors LimitedMechanics and garages
- Vip Bin Cleaning Norfolk LtdCleaning companies
- SBC Groundworks LtdBuilders
- Milaboo LtdSpecialist contractors
- Gkroofing LtdSpecialist contractors
- Claren Motor Trade LtdMotor traders
What happens if Castle Electrical Services 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
- 07027862
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2009 (17 years ago)
- Registered office
- 34 Wentworth Green, Norwich, NR4 6AE
- Nature of business
- Repair of electrical equipment (SIC 33140)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 23 September 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Norwich
Other active machinery repair and installation companies registered in Norwich.
- Caterlec Services Limited1994
- Cawkwell Aviation Ltd2026
- CBM Marine Ltd2026
- Chief Marine Ltd2024
- Chris Clarke Oil Boiler Services Ltd2014
- City Saw & Knife Services Limited2003
- Classic Flying Machine Collection Limited2000
- Cowling & Co Engineering Limited2022
All machinery repair and installation companies in Norwich · All trades in Norwich · Machinery repair and installation across the UK
Frequently asked questions
When are Castle Electrical Services Limited's accounts due?
Castle Electrical Services Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Castle Electrical Services 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 Castle Electrical Services Limited still trading?
Castle Electrical Services Limited is listed as active on the Companies House register (checked 12 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 Castle Electrical Services Limited do?
Castle Electrical Services Limited is registered under Repair of electrical equipment (SIC 33140).
How old is Castle Electrical Services Limited?
Castle Electrical Services Limited was incorporated on 23 September 2009, 17 years ago.
Has Castle Electrical Services Limited won public sector contracts?
Yes. Castle Electrical Services Limited has 13 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £360K), most recently from NORWICH CITY SERVICES LIMITED.
What is the penalty if Castle Electrical Services 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 Castle Electrical Services Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.