- Company number
- 12270288
- Incorporated
- 18 Oct 20196 years trading
- Registered office
- Suite A 3RD Floor Ardenham Court, Oxford Road, Aylesbury, HP19 8HT
- Nature of business
- Construction of commercial buildings; Electrical installation; Other construction installation; Other specialised construction activities n.e.c.
JK Electrical Installations Ltd is a 6-year-old private limited company registered in Aylesbury, company number 12270288, one of 176 building contractors in Aylesbury. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £44K (+65.5%) on the year before, to £110K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £167K against £158K owed within a year: 1.1 times cover.
- 6 employees on average, up from 3 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £110K | £167K | £158K | 6 | |
| 31 Dec 2024 | £66K | £54K | £58K | £2,200 | 3 |
| 31 Dec 2023 | £6,603 | £58K | £63K | 2 | |
| 31 Dec 2022 | £8,275 | £0 | £0 | 2 | |
| 31 Oct 2021 | £25K | £0 | £13K | 2 | |
| 31 Oct 2020 | £1 | 1 |
Public contracts won
JK Electrical Installations Ltd has one public sector contract award on record; the ones with their own published value total £19K (2025). Source: Contracts Finder and Find a Tender award notices.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Oxfordshire County Council | Re-modelling of pedestrian entrance | £19K | 12 Dec 2025 |
Where JK Electrical Installations Ltd is registered
The registered office is in Aylesbury (HP19), in the Buckinghamshire local authority area, South East. Show HP19 8HT on a map.
Other trade companies in HP19
- TPV Group LtdProperty developers
- Aylesbury Claims Management LtdMechanics and garages
- Abi Handyman LimitedFinishing trades
- KWK Properties LimitedProperty developers
- Redline Group Properties LimitedProperty developers
- Ridge and Crown Roofing LtdRoofers
- Lightning Performance Auto Services LimitedMechanics and garages
- Spartan Facades LtdSpecialist contractors
What happens if JK Electrical Installations 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 12270288
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 October 2019 (6 years ago)
- Registered office
- Suite A 3RD Floor Ardenham Court, Oxford Road, Aylesbury, HP19 8HT
- Nature of business
- Construction of commercial buildings (SIC 41201)
Electrical installation (SIC 43210)
Other construction installation (SIC 43290)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 24 August 2026
- Previous names
- JK Electrical Instullations Ltd (until 24 Oct 2019)
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Aylesbury
Other active building contractors registered in Aylesbury.
- JKN Construction Ltd2018
- JMF Electrical Limited2022
- Joiner & Son Builders Ltd2023
- JP Design & Build Ltd2026
- JT Clark Construction Limited2023
- K Fletcher Building Services Ltd2026
- K.W. Harrison & Sons Limited2003
- KD Construction Consultants Ltd2024
All building contractors in Aylesbury · All trades in Aylesbury · Builders across the UK
Frequently asked questions
When are JK Electrical Installations Ltd's accounts due?
JK Electrical Installations Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is JK Electrical Installations Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is JK Electrical Installations Ltd still trading?
JK Electrical Installations 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 JK Electrical Installations Ltd do?
JK Electrical Installations Ltd is registered under Construction of commercial buildings (SIC 41201); Electrical installation (SIC 43210); Other construction installation (SIC 43290); Other specialised construction activities n.e.c. (SIC 43999).
How old is JK Electrical Installations Ltd?
JK Electrical Installations Ltd was incorporated on 18 October 2019, 6 years ago.
Has JK Electrical Installations Ltd won public sector contracts?
Yes. JK Electrical Installations Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £19K), most recently from Oxfordshire County Council.
What is the penalty if JK Electrical Installations 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 JK Electrical Installations 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.