- Companies
- Plumbers and heating engineers
- Heat-King Building Maintenance Ltd
Heat-King Building Maintenance Ltd
- Company number
- 10921438
- Incorporated
- 17 Aug 20179 years trading
- Registered office
- 33 Thingwall Road, Irby, Wirral, CH61 3UE
- Nature of business
- Plumbing, heat and air-conditioning installation; Other specialised construction activities n.e.c.
Heat-King Building Maintenance Ltd is a 9-year-old private limited company registered in Irby, company number 10921438, one of the UK's plumbing and heating companies. Its next accounts are due at Companies House on 30 May 2027, and the CT600 for the period to 30 August 2026 is due at HMRC on 30 August 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 £37K (-8.9%) on the year before, to £383K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £169K against £25K owed within a year: 6.6 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £383K | £169K | £25K | 2 | |
| 31 Aug 2024 | £421K | £195K | £51K | 2 | |
| 31 Aug 2023 | £428K | £197K | £47K | 3 | |
| 31 Aug 2022 | £349K | £38K | £77K | 3 | |
| 31 Aug 2021 | £308K | £12K | £92K | 3 | |
| 31 Aug 2020 | £204K | £80K | £42K | 5 | |
| 31 Aug 2019 | -£119K | -£31K | £20K | 2 | |
| 31 Aug 2018 | -£138K | -£187K | £48K | 1 |
Where Heat-King Building Maintenance Ltd is registered
The registered office is in Irby (CH61), in the Wirral local authority area, North West. Show CH61 3UE on a map.
Other trade companies in CH61
- Jako Group LtdProperty developers
- Williams Collective Automotive LtdMotor traders
- CJ’S Automotive LtdMechanics and garages
- Hydro Rinse Exterior Cleaning LtdCleaning companies
- Ob Construction NW LimitedFinishing trades
- RM Trade Solutions LimitedElectricians
- Edmondson Contractors LimitedElectricians
- Edgewater Construction LtdFinishing trades
Also registered at this address
8 other companies use the same registered office as Heat-King Building Maintenance Ltd.
- Botanica Garden Design LtdLandscapers and gardeners
- Clarke's Construction and Roofing LimitedRoofers
- Devonshire Thermal Insulations LtdPlumbers and heating engineers
- Direct Tyres NW LtdMotor traders
- Heswall Cleaning Services LimitedCleaning companies
- M J S Heating Services LtdPlumbers and heating engineers
- RTC Roofing Contractors LtdRoofers
- Williams Collective Automotive LtdMotor traders
What happens if Heat-King Building Maintenance 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 May 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 30 Aug 2027 | £375 |
| 3 to 6 months late | 31 Aug 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Aug 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Aug 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
- 10921438
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 August 2017 (9 years ago)
- Registered office
- 33 Thingwall Road, Irby, Wirral, CH61 3UE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 30 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 16 August 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- Heatking Maintenance Limited (until 31 Oct 2017)
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
Other active plumbing and heating companies.
Frequently asked questions
When are Heat-King Building Maintenance Ltd's accounts due?
Heat-King Building Maintenance Ltd's next accounts are due at Companies House by 30 May 2027 (in 229 days), covering the period to 30 August 2026.
When is Heat-King Building Maintenance Ltd's CT600 due?
The CT600 for the period to 30 August 2026 is due at HMRC by 30 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 May 2027.
Is Heat-King Building Maintenance Ltd still trading?
Heat-King Building Maintenance 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 Heat-King Building Maintenance Ltd do?
Heat-King Building Maintenance Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other specialised construction activities n.e.c. (SIC 43999).
How old is Heat-King Building Maintenance Ltd?
Heat-King Building Maintenance Ltd was incorporated on 17 August 2017, 9 years ago.
What is the penalty if Heat-King Building Maintenance 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 Heat-King Building Maintenance 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.