- Companies
- Plumbers and heating engineers
- Preston
- Koolworx Climate & Mechanical Ltd
Koolworx Climate & Mechanical Ltd
- Company number
- 15788217
- Incorporated
- 19 Jun 20242 years trading
- Registered office
- Unit 48 Old Mill Industrial Estate, Bamber Bridge, Preston, Lancashire, PR5 6SY
- Nature of business
- Plumbing, heat and air-conditioning installation; Other construction installation
Koolworx Climate & Mechanical Ltd is a 2-year-old private limited company registered in Preston, company number 15788217, one of 181 plumbing and heating companies in Preston. Its next accounts are due at Companies House on 31 March 2028, and the CT600 for the period to 30 June 2027 is due at HMRC on 30 June 2028.
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 £26K (+109.3%) on the year before, to £49K.
- 8 employees on average, up from 5 the year before.
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2026 | £49K | 8 | |||
| 30 Jun 2025 | £23K | 5 |
Where Koolworx Climate & Mechanical Ltd is registered
The registered office is in Preston (PR5), in the South Ribble local authority area, North West. Show PR5 6SY on a map.
Other trade companies in PR5
- Rushton & Son Roofing and Maintenance Work LtdPainters and decorators
- Montana Decking LtdFinishing trades
- Gateway Fire Doors LtdJoiners and carpenters
- Auto Body Worx NW LtdMechanics and garages
- Jle Technical LtdMechanics and garages
- CLM Development LimitedProperty developers
- Apex Extraction LtdCleaning companies
- JB Autoworx LtdMechanics and garages
What happens if Koolworx Climate & Mechanical 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 31 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2028 to 30 Apr 2028 | £150 |
| 1 to 3 months late | 1 May 2028 to 30 Jun 2028 | £375 |
| 3 to 6 months late | 1 Jul 2028 to 30 Sep 2028 | £750 |
| More than 6 months late | From 1 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2029 | 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
- 15788217
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 June 2024 (2 years ago)
- Registered office
- Unit 48 Old Mill Industrial Estate, Bamber Bridge, Preston, Lancashire, PR5 6SY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290) - Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2026
- Last confirmation statement
- 18 June 2026
- Previous names
- Koolworx Climate & Mechanical Ltd Ltd (until 11 Mar 2026)
Koolworx Ltd (until 9 Mar 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 Preston
Other active plumbing and heating companies registered in Preston.
- Lancashire Installations Limited2005
- Lancashire Plumbing Co Limited2025
- Lanmore Heating Limited2002
- LBW Plumbing & Heating Limited2023
- Lee Anthony Plumbing Limited2010
- LHB UK Group Ltd2025
- LJG Group Ltd2015
- LMG Mechanical Limited2018
All plumbing and heating companies in Preston · All trades in Preston · Plumbers and heating engineers across the UK
Frequently asked questions
When are Koolworx Climate & Mechanical Ltd's accounts due?
Koolworx Climate & Mechanical Ltd's next accounts are due at Companies House by 31 March 2028 (in 535 days), covering the period to 30 June 2027.
When is Koolworx Climate & Mechanical Ltd's CT600 due?
The CT600 for the period to 30 June 2027 is due at HMRC by 30 June 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2028.
Is Koolworx Climate & Mechanical Ltd still trading?
Koolworx Climate & Mechanical 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 Koolworx Climate & Mechanical Ltd do?
Koolworx Climate & Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290).
How old is Koolworx Climate & Mechanical Ltd?
Koolworx Climate & Mechanical Ltd was incorporated on 19 June 2024, 2 years ago.
What is the penalty if Koolworx Climate & Mechanical 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 Koolworx Climate & Mechanical 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.