MK Heat Ltd
- Company number
- 13921630
- Incorporated
- 16 Feb 20224 years trading
- Registered office
- 47 Boundary Place, Plymouth, PL6 7FD
- Nature of business
- Plumbing, heat and air-conditioning installation
MK Heat Ltd is a 4-year-old private limited company registered in Plymouth, company number 13921630, one of 136 plumbing and heating companies in Plymouth. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 £9,520 (-84%) on the year before, to £1,820.
- Current assets of £13K against £6,320 owed within a year: 2.1 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £1,820 | £13K | £6,320 | 1 | |
| 11 Jan 2024 | £11K | £11K | £3,318 | 1 | |
| 11 Jan 2023 | £10K | £14K | £15K | £6,822 | 1 |
Where MK Heat Ltd is registered
The registered office is in Plymouth (PL6), in the Plymouth local authority area, South West. Show PL6 7FD on a map.
Other trade companies in PL6
- Transit Garage SW LimitedMechanics and garages
- Drilling Consultants LimitedCivil engineering
- A-Frame Scaffolding LimitedScaffolders
- SW Plantroom Partners LtdPlumbers and heating engineers
- Trueline (SW) LtdJoiners and carpenters
- Prime Plumbing & Heating SW LtdPlumbers and heating engineers
- New Cut Carpentry LimitedJoiners and carpenters
- Sos 360 LtdBuilders
Also registered at this address
1 other company uses the same registered office as MK Heat Ltd.
- MK Heat Property Services LtdPlumbers and heating engineers
What happens if MK Heat 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 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 13921630
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 February 2022 (4 years ago)
- Registered office
- 47 Boundary Place, Plymouth, PL6 7FD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 11 January 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 Plymouth
Other active plumbing and heating companies registered in Plymouth.
- MK Heat Property Services Ltd2026
- Moorheat Solutions Limited2018
- Moorland Heating Limited2009
- MSH Plumbing & Heating Limited2015
- Naked Heat Ltd2020
- Nationwide Drainage Ltd2025
- NC Plumbing and Property Maintenance Ltd2010
- NJW Domestic Services Ltd2025
All plumbing and heating companies in Plymouth · All trades in Plymouth · Plumbers and heating engineers across the UK
Frequently asked questions
When are MK Heat Ltd's accounts due?
MK Heat Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is MK Heat Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is MK Heat Ltd still trading?
MK Heat 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 MK Heat Ltd do?
MK Heat Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is MK Heat Ltd?
MK Heat Ltd was incorporated on 16 February 2022, 4 years ago.
What is the penalty if MK Heat 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 MK Heat 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.