- Companies
- Plumbers and heating engineers
- Welwyn Garden City
- Heatcooler Limited
Heatcooler Limited
- Company number
- 16620161
- Incorporated
- 31 Jul 20251 year trading
- Registered office
- 15 Howicks Green, Welwyn Garden City, AL7 4RJ
- Nature of business
- Plumbing, heat and air-conditioning installation
Heatcooler Limited is a 1-year-old private limited company registered in Welwyn Garden City, company number 16620161, one of 32 plumbing and heating companies in Welwyn Garden City. Its next accounts are due at Companies House on 30 April 2027, and its first CT600 is due at HMRC on 30 July 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Who runs and owns Heatcooler Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| H*** S*** | Director | Jul 2025 |
Person with significant control
Where Heatcooler Limited is registered
The registered office is in Welwyn Garden City (AL7), in the Welwyn Hatfield local authority area, East of England. Show AL7 4RJ on a map.
Other trade companies in AL7
- Mechanicalwise LtdInstallers
- Azalea Services LimitedSpecialist contractors
- Malmech and Mannion LimitedMechanics and garages
- T&D Construction Group LtdFinishing trades
- Vertec Roofing and Building LtdRoofers
- Selectlane LtdMotor traders
- Af Pressure Washing LtdCleaning companies
- Jet Professional LtdCleaning companies
What happens if Heatcooler 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 16620161
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 July 2025 (1 year ago)
- Registered office
- 15 Howicks Green, Welwyn Garden City, AL7 4RJ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Previous names
- H.S Plumbing &Heating&Air Conditioning Limited (until 18 Aug 2025)
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 Welwyn Garden City
Other active plumbing and heating companies registered in Welwyn Garden City.
- Heating Management Ltd2012
- Herts Plumbing & Heating Ltd2008
- Hesse Gas Supply Ltd2024
- Loui Plumbing Services Ltd2026
- LT Air Conditioning Limited2026
- M E London Plumbing & Heating Ltd2022
- MMC Plumbing & Heating Limited2014
- Panoptic Plumbing Limited2022
All plumbing and heating companies in Welwyn Garden City · All trades in Welwyn Garden City · Plumbers and heating engineers across the UK
Frequently asked questions
When are Heatcooler Limited's accounts due?
Heatcooler Limited's next accounts are due at Companies House by 30 April 2027 (in 200 days), covering the period to 31 July 2026.
When is Heatcooler Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 30 July 2026, due by 30 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Heatcooler Limited still trading?
Heatcooler Limited is listed as active on the Companies House register (checked 12 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 Heatcooler Limited do?
Heatcooler Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Heatcooler Limited?
Heatcooler Limited was incorporated on 31 July 2025, 1 year ago.
Who runs Heatcooler Limited?
Heatcooler Limited has 1 active director, the longest-serving appointed in Jul 2025. Their names and service addresses are on the Companies House register.
Who owns Heatcooler Limited?
One person or company has significant control of Heatcooler Limited: an individual (owns 75% or more of the shares).
What is the penalty if Heatcooler 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 Heatcooler Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.