Company profile · Plumbers and heating engineers
Kobuk Limited
Kobuk Limited is a 8-year-old private limited company registered in Weston-Super-Mare, company number 11229076, one of 74 plumbing and heating companies in Weston-Super-Mare. 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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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Kobuk Limited over the years
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 £6,859 (-459.1%) on the year before, to -£5,365.
- Net assets rose in 1 of 6 year-on-year comparisons on record.
- Current assets of £20K against £23K owed within a year: 0.9 times cover.
- 1 employee 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 Mar 2025 | -£5,365 | £20K | £23K | 1 | |
| 31 Mar 2024 | £1,494 | £29K | £20K | 1 | |
| 31 Mar 2023 | -£26K | £6,893 | £18K | 1 | |
| 31 Mar 2022 | -£15K | £30K | £22K | 1 | |
| 31 Mar 2021 | -£12K | £29K | £15K | 1 | |
| 31 Mar 2020 | -£4,358 | £2,672 | £9,561 | 2 | |
| 31 Mar 2019 | £1,613 | £411 | £2,173 |
Where Kobuk Limited is registered
The registered office is in Weston-Super-Mare (BS23), in the North Somerset local authority area, South West. Show BS23 2JU on a map.
Other trade companies in BS23
- Bomech LtdMachinery repair and installation
- Cardwell Construction Group LimitedCivil engineering
- B & R Renewables LtdRoofers
- Truva Automotive LtdMotor traders
- North Holt Investments LtdProperty developers
- Autograph Classic and Custom LtdMechanics and garages
- Silk Brickworks LtdSpecialist contractors
- Weston Tyres & Servicing Centre LtdMechanics and garages
What happens if Kobuk 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
- 11229076
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 February 2018 (8 years ago)
- Registered office
- 12 ST. Peters Avenue, Weston-Super-Mare, BS23 2JU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 27 February 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Weston-Super-Mare
Other active plumbing and heating companies registered in Weston-Super-Mare.
- Koolvent Tek Ltd2019
- LGN Plumbing & Heating Limited2022
- Lloyd Cox Heat and Home Ltd2026
- LNC Plumbing, Heating & Bathrooms Ltd2023
- M D Specialist Plumbing and Heating Ltd2021
- M.O.M. Plastering Limited2006
- Mains Plumbing & Heating Ltd2014
- MDS Domestic Heating Limited2026
All plumbing and heating companies in Weston-Super-Mare · All trades in Weston-Super-Mare · Plumbers and heating engineers across the UK
Frequently asked questions
When are Kobuk Limited's accounts due?
Kobuk 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 Kobuk 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 Kobuk Limited still trading?
Kobuk 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 Kobuk Limited do?
Kobuk Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Kobuk Limited?
Kobuk Limited was incorporated on 28 February 2018, 8 years ago.
What is the penalty if Kobuk 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 Kobuk 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.