- Companies
- Plumbers and heating engineers
- Northampton
- Catalyst Heating and Cooling Services Ltd
Catalyst Heating and Cooling Services Ltd
- Company number
- 12049497
- Incorporated
- 13 Jun 20197 years trading
- Registered office
- 22-24 Harborough Road, Kingsthorpe, Northampton, NN2 7AZ
- Nature of business
- Plumbing, heat and air-conditioning installation
Catalyst Heating and Cooling Services Ltd is a 7-year-old private limited company registered in Northampton, company number 12049497, one of 197 plumbing and heating companies in Northampton. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £4,739 (-13.9%) on the year before, to -£39K.
- Net assets rose in 0 of 5 year-on-year comparisons on record.
- Current assets of £36K against £80K owed within a year: 0.4 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£39K | £16K | £36K | £80K | 1 |
| 30 Jun 2024 | -£34K | £9,277 | £24K | £66K | 1 |
| 30 Jun 2023 | -£24K | £7,214 | £20K | £54K | 1 |
| 30 Jun 2022 | -£19K | £7,837 | £18K | £50K | 1 |
| 30 Jun 2021 | -£7,595 | £31K | 1 | ||
| 30 Jun 2020 | £2,023 | £7,591 | 1 |
Where Catalyst Heating and Cooling Services Ltd is registered
The registered office is in Northampton (NN2), in the West Northamptonshire local authority area, East Midlands. Show NN2 7AZ on a map.
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- MRT Pro LtdSpecialist contractors
Shared registered office
52 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Catalyst Heating and Cooling Services 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 12049497
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 June 2019 (7 years ago)
- Registered office
- 22-24 Harborough Road, Kingsthorpe, Northampton, NN2 7AZ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 12 June 2026
- Previous names
- Catalyst Heating Services Ltd (until 12 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 Northampton
Other active plumbing and heating companies registered in Northampton.
- Challis Plumbing and Heating Ltd2022
- Clas Plumbing Ltd2025
- Clyde Mechanical Services Limited2006
- CNS Heating, Plumbing and Air Conditioning Ltd2026
- Co2 Gas & Heating Ltd2026
- Collingtree Cool Ltd2026
- Cool Space Solutions Limited2025
- Cooltherm Air Conditioning Ltd2022
All plumbing and heating companies in Northampton · All trades in Northampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Catalyst Heating and Cooling Services Ltd's accounts due?
Catalyst Heating and Cooling Services Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Catalyst Heating and Cooling Services Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Catalyst Heating and Cooling Services Ltd still trading?
Catalyst Heating and Cooling Services 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 Catalyst Heating and Cooling Services Ltd do?
Catalyst Heating and Cooling Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Catalyst Heating and Cooling Services Ltd?
Catalyst Heating and Cooling Services Ltd was incorporated on 13 June 2019, 7 years ago.
What is the penalty if Catalyst Heating and Cooling Services 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 Catalyst Heating and Cooling Services 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.