- Companies
- Groundworks and demolition
- Bangor
- KJK Groundworks & Plant Sales Limited
KJK Groundworks & Plant Sales Limited
- Company number
- 11149805
- Incorporated
- 15 Jan 20188 years trading
- Registered office
- 1 Cil Caseg, Bethesda, Bangor, LL57 3GA
- Nature of business
- Site preparation
KJK Groundworks & Plant Sales Limited is a 8-year-old private limited company registered in Bangor, company number 11149805, one of the UK's groundworks and demolition companies. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £27K on the year before, to -£28K.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £49K against £106K owed within a year: 0.5 times cover.
- 2 employees 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 Jan 2025 | -£28K | £49K | £106K | 2 | |
| 31 Jan 2024 | -£1,154 | £106K | £137K | 2 | |
| 31 Jan 2023 | £41K | £90K | 2 | ||
| 31 Jan 2022 | £2,773 | £74K | 2 | ||
| 31 Jan 2021 | £36K | £119K | 2 | ||
| 31 Jan 2020 | £3,913 | £94K | 1 | ||
| 31 Jan 2019 | £100 | £100 |
Where KJK Groundworks & Plant Sales Limited is registered
The registered office is in Bangor (LL57), in the Gwynedd local authority area, Wales. Show LL57 3GA on a map.
Other trade companies in LL57
- Purple Plumbers LimitedPlumbers and heating engineers
- E.R.A Humphreys LimitedCivil engineering
- Morris&Owens LimitedPlasterers
- North Coast Carpentry and Construction LimitedJoiners and carpenters
- P M Williams & Son LtdBuilders
- K Gorilla Cars LtdMotor traders
- Gwynedd Scaffolding LimitedScaffolders
- J&G Building and Assembling LtdBuilders
What happens if KJK Groundworks & Plant Sales 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 11149805
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 January 2018 (8 years ago)
- Registered office
- 1 Cil Caseg, Bethesda, Bangor, LL57 3GA
- Nature of business
- Site preparation (SIC 43120)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 14 January 2026
- Previous names
- KJK Groundworks & Plant Hire Limited (until 10 Dec 2021)
Filing notes for groundworks and demolition companies
Groundworks and demolition companies tend to own heavy plant, so capital allowances and hire purchase liabilities show up in both the accounts and the CT600.
Similar companies in Bangor
Other active groundworks and demolition companies registered in Bangor.
- N W Plant Hire (N. Ireland) Limited2013
- Colin Bradley Contracts Ltd2021
- JGM Groundworks and Landscaping Ltd2015
All groundworks and demolition companies in Bangor · All trades in Bangor · Groundworks and demolition across the UK
Frequently asked questions
When are KJK Groundworks & Plant Sales Limited's accounts due?
KJK Groundworks & Plant Sales Limited's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is KJK Groundworks & Plant Sales Limited's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is KJK Groundworks & Plant Sales Limited still trading?
KJK Groundworks & Plant Sales 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 KJK Groundworks & Plant Sales Limited do?
KJK Groundworks & Plant Sales Limited is registered under Site preparation (SIC 43120).
How old is KJK Groundworks & Plant Sales Limited?
KJK Groundworks & Plant Sales Limited was incorporated on 15 January 2018, 8 years ago.
What is the penalty if KJK Groundworks & Plant Sales 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 KJK Groundworks & Plant Sales 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.