- Companies
- Electricians
- Didcot
- Proelec Installations Limited
Proelec Installations Limited
- Company number
- 05495073
- Incorporated
- 29 Jun 200521 years trading
- Registered office
- Harwell Innovation Centre 173 Curie Avenue, Harwell, Didcot, Oxfordshire, OX11 0QG
- Nature of business
- Electrical installation
Proelec Installations Limited is a 21-year-old private limited company registered in Didcot, company number 05495073, one of 22 electrical contractors in Didcot. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £15K (-7.3%) on the year before, to £196K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £320K against £158K owed within a year: 2.0 times cover.
- 5 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £196K | £320K | £158K | 5 | |
| 30 Jun 2024 | £211K | £336K | £142K | 5 | |
| 30 Jun 2023 | £159K | £378K | £231K | 5 | |
| 30 Jun 2022 | £204K | £315K | £122K | 5 | |
| 30 Jun 2021 | £194K | £390K | £202K | 5 | |
| 30 Jun 2020 | £248K | £369K | £131K | 5 | |
| 30 Jun 2019 | £222K | £294K | £89K | ||
| 30 Jun 2018 | £164K | £216K | £76K | ||
| 30 Jun 2017 | £130K | £209K | £103K | ||
| 30 Jun 2016 | £101K | £119K | £148K | £69K |
Public contracts won
Proelec Installations Limited has one public sector contract award on record; the ones with their own published value total £200K (2017). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Oxford City Council | Provision and Installation of Electrical Heating Systems at Riverside Court | £200K | 1 Oct 2017 |
Where Proelec Installations Limited is registered
The registered office is in Didcot (OX11), in the Vale of White Horse local authority area, South East. Show OX11 0QG on a map.
Other trade companies in OX11
- Britava Roofing LtdRoofers
- Oxfordshire Lime LtdSpecialist contractors
- Millbrook Development LimitedProperty developers
- DJM Rail Services LtdElectricians
- Lacy Developments LtdBuilders
- The Harwell Science and Innovation Campus No.5 Nominee LimitedProperty developers
- Clear Works Cleaning Solutions LtdCleaning companies
- Griffin Tail Lift Services LtdMachinery repair and installation
What happens if Proelec Installations 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 05495073
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 June 2005 (21 years ago)
- Registered office
- Harwell Innovation Centre 173 Curie Avenue, Harwell, Didcot, Oxfordshire, OX11 0QG
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 29 June 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 Didcot
Other active electrical contractors registered in Didcot.
- United Electrical (U.K.) Ltd2017
- Ah Electrical Ltd2017
- Archester Services Ltd2019
- Artwin Electrics Ltd2024
- CDC Electrical Services Limited2018
- Charge Point Solutions Oxford Ltd2022
- DJM Rail Services Ltd2026
- Echelon Energy Limited2025
All electrical contractors in Didcot · All trades in Didcot · Electricians across the UK
Frequently asked questions
When are Proelec Installations Limited's accounts due?
Proelec Installations Limited's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Proelec Installations Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Proelec Installations Limited still trading?
Proelec Installations 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 Proelec Installations Limited do?
Proelec Installations Limited is registered under Electrical installation (SIC 43210).
How old is Proelec Installations Limited?
Proelec Installations Limited was incorporated on 29 June 2005, 21 years ago.
Has Proelec Installations Limited won public sector contracts?
Yes. Proelec Installations Limited has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £200K), most recently from Oxford City Council.
What is the penalty if Proelec Installations 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 Proelec Installations 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.