- Companies
- Plumbers and heating engineers
- Leighton Buzzard
- MK Cooling Limited
MK Cooling Limited
- Company number
- 11621361
- Incorporated
- 14 Oct 20187 years trading
- Registered office
- 31 Mowbray Drive, Leighton Buzzard, LU7 2PH
- Nature of business
- Plumbing, heat and air-conditioning installation
MK Cooling Limited is a 7-year-old private limited company registered in Leighton Buzzard, company number 11621361, one of 43 plumbing and heating companies in Leighton Buzzard. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £49K (+52.2%) on the year before, to £144K.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £189K against £55K owed within a year: 3.4 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 |
|---|---|---|---|---|---|
| 30 Sep 2025 | £144K | £189K | £55K | 1 | |
| 31 Aug 2024 | £95K | £137K | £44K | 1 | |
| 31 Aug 2023 | £67K | £107K | £44K | 1 | |
| 31 Aug 2022 | £39K | £53K | £19K | 1 | |
| 31 Aug 2021 | £8,350 | £37K | £36K | 0 | |
| 31 Aug 2020 | £1 | £1 | |||
| 31 Oct 2019 | £1 |
Where MK Cooling Limited is registered
The registered office is in Leighton Buzzard (LU7), in the Central Bedfordshire local authority area, East of England. Show LU7 2PH on a map.
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- L.T. Advanced Scaffolding LtdBuilders
What happens if MK Cooling 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 11621361
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 October 2018 (7 years ago)
- Registered office
- 31 Mowbray Drive, Leighton Buzzard, LU7 2PH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 28 September 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 Leighton Buzzard
Other active plumbing and heating companies registered in Leighton Buzzard.
- Neotherm Heating & Plumbing Ltd2026
- New Horizon Transport Ltd2025
- Nice and Cool Air Conditioning Limited2026
- Nickmcellarservices Limited2025
- Nossiter and Barnett Limited2012
- Novaclima Ltd2025
- Optimal Vent Limited2021
- Plumbing Solutions Bedfordshire Ltd2023
All plumbing and heating companies in Leighton Buzzard · All trades in Leighton Buzzard · Plumbers and heating engineers across the UK
Frequently asked questions
When are MK Cooling Limited's accounts due?
MK Cooling Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is MK Cooling Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is MK Cooling Limited still trading?
MK Cooling 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 MK Cooling Limited do?
MK Cooling Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is MK Cooling Limited?
MK Cooling Limited was incorporated on 14 October 2018, 7 years ago.
What is the penalty if MK Cooling 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 MK Cooling 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.