- Companies
- Plumbers and heating engineers
- Think Heat Ltd
Think Heat Ltd
- Company number
- 12543849
- Incorporated
- 2 Apr 20206 years trading
- Registered office
- Office 5 & 6 Robertstown House, Aberdare Business Park, Robertstown, Rhondda Cynon Taff, CF44 8ER
- Nature of business
- Plumbing, heat and air-conditioning installation
Think Heat Ltd is a 6-year-old private limited company registered in Robertstown, company number 12543849, one of the UK's plumbing and heating companies. Companies House shows its accounts as overdue: they were due on 30 December 2025.
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 £6,754 (-113.2%) on the year before, to -£13K.
- Net assets rose in 0 of 3 year-on-year comparisons on record.
- Current assets of £1,395 against £14K owed within a year: 0.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 4 years, 2021 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2024 | -£13K | £1,395 | £14K | 0 | |
| 31 Mar 2023 | -£5,965 | £5,935 | £12K | 0 | |
| 31 Mar 2022 | -£1,488 | £9,812 | £11K | 0 | |
| 30 Apr 2021 | £1 | £1 |
Where Think Heat Ltd is registered
The registered office is in Robertstown (CF44), in the Rhondda Cynon Taf local authority area, Wales. Show CF44 8ER on a map.
Other trade companies in CF44
- Site Impact Reduction LtdBuilders
- Atlas Motorcare LtdMotor traders
- Albannie Internals LtdInstallers
- Omega Electrical & Renewables LimitedElectricians
- Overdrive Shopfitting LtdJoiners and carpenters
- MRG Lofts and Construction LimitedSpecialist contractors
- CB Heating & Plumbing SW LtdPlumbers and heating engineers
- Cav's Green Management LtdLandscapers and gardeners
What happens if Think Heat Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Dec 2025 to 30 Jan 2026 | £150 |
| 1 to 3 months late | 31 Jan 2026 to 30 Mar 2026 | £375 |
| 3 to 6 months late | 31 Mar 2026 to 30 Jun 2026 | £750 |
| More than 6 months late | From 1 Jul 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Mar 2026 | £200 |
| 3 months late | 30 Jun 2026 | another £200 |
| 6 months late | 30 Sep 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Mar 2027 | 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
- 12543849
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 April 2020 (6 years ago)
- Registered office
- Office 5 & 6 Robertstown House, Aberdare Business Park, Robertstown, Rhondda Cynon Taff, CF44 8ER
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2024
- Last confirmation statement
- 1 April 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
Other active plumbing and heating companies.
Frequently asked questions
When are Think Heat Ltd's accounts due?
Think Heat Ltd's accounts were due at Companies House on 30 December 2025 and the register shows them as overdue.
When is Think Heat Ltd's CT600 due?
The CT600 for the period to 30 March 2025 is due at HMRC by 30 March 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 31 December 2025.
Is Think Heat Ltd still trading?
Think Heat Ltd is listed as active on the Companies House register (checked 13 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 Think Heat Ltd do?
Think Heat Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Think Heat Ltd?
Think Heat Ltd was incorporated on 2 April 2020, 6 years ago.
What is the penalty if Think 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 Think Heat Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.