- Companies
- Specialist contractors
- Ammanford
- Thermal Earth Limited
Thermal Earth Limited
- Company number
- 06225060
- Incorporated
- 24 Apr 200719 years trading
- Registered office
- 1B Capel Hendre Ind Estate, Coopers Road, Tycroes, Ammanford, Carmarthanshire, SA18 3SJ
- Nature of business
- Other specialised construction activities n.e.c.
Thermal Earth Limited is a 19-year-old private limited company registered in Ammanford, company number 06225060, one of 14 specialist construction companies in Ammanford. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 up £342K (+18.8%) on the year before, to £2.2M.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £2.2M against £704K owed within a year: 3.2 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £2.2M | £135K | £2.2M | £704K | 0 |
| 31 May 2024 | £1.8M | £200K | £2.2M | £653K | 35 |
| 31 May 2023 | £1.2M | £139K | £1.5M | £551K | 35 |
| 31 May 2022 | £638K | £365K | £1.1M | £569K | 34 |
| 31 May 2021 | £399K | £264K | £754K | £446K | 33 |
| 31 May 2020 | £191K | £270K | £538K | £332K | 27 |
| 31 May 2019 | £205K | £171K | £533K | £347K | 22 |
| 31 May 2018 | £125K | £63K | £390K | £286K | 20 |
| 31 May 2017 | £121K | £105K | £414K | £325K | 22 |
| 31 May 2016 | £218K | £37K | £421K | £345K |
Public contracts won
Thermal Earth Limited has 4 public sector contract awards on record; the ones with their own published value total £170K, from 2017 to 2025. Source: Contracts Finder and Find a Tender award notices. For 3 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 1 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Procure Plus Holdings Limited3 awards
- London Borough of Hackney1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Procure Plus Holdings Limited | Framework for the Supply of Low and Zero Carbon Technologies | Ceiling, not shown | 10 Nov 2025 |
| Procure Plus Holdings Limited | Framework Agreement for the Supply and Installation of Low and Zero Carbon Technologies | Ceiling, not shown | 9 Nov 2021 |
| London Borough of Hackney | Water Source Heat Pump for West Reservoir | £170K | 31 Aug 2021 |
| Procure Plus Holdings Limited | Framework Agreement for the Supply of Ground Source Heat Pumps | Ceiling, not shown | 13 Feb 2017 |
Where Thermal Earth Limited is registered
The registered office is in Ammanford (SA18), in the Carmarthenshire local authority area, Wales. Show SA18 3SJ on a map.
Other trade companies in SA18
- Ace Resin Group LtdFinishing trades
- Dyfed Engineering LtdElectricians
- Serval Mechanical & Fabrication LtdMechanics and garages
- Timber and Trade Solutions LtdBuilders
- West Wales Cleaning Group LtdCleaning companies
- Carpet Confession LtdCleaning companies
- Elite Painting Solutions LtdPainters and decorators
- Dafku Construction LtdCivil engineering
What happens if Thermal Earth 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 06225060
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 April 2007 (19 years ago)
- Registered office
- 1B Capel Hendre Ind Estate, Coopers Road, Tycroes, Ammanford, Carmarthanshire, SA18 3SJ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 1 January 2026
- Charges (mortgages)
- 0 outstanding of 1 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Ammanford
Other active specialist construction companies registered in Ammanford.
- Tywi Specialists Limited2001
- Apl Pipework Services Ltd2015
- Black Mountain Tarmacadam Driveways Limited2021
- Celtic Green Energie Ltd2025
- Construction Solutions UK (Wales) Ltd2009
- Freeman Fleet Hire Limited2025
- M Thomas & Sons Ltd2019
- Masters Partnership Ltd2020
All specialist construction companies in Ammanford · All trades in Ammanford · Specialist contractors across the UK
Frequently asked questions
When are Thermal Earth Limited's accounts due?
Thermal Earth Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Thermal Earth Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Thermal Earth Limited still trading?
Thermal Earth Limited 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 Thermal Earth Limited do?
Thermal Earth Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Thermal Earth Limited?
Thermal Earth Limited was incorporated on 24 April 2007, 19 years ago.
Has Thermal Earth Limited won public sector contracts?
Yes. Thermal Earth Limited has 4 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £170K), most recently from PROCURE PLUS HOLDINGS LIMITED.
What is the penalty if Thermal Earth 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 Thermal Earth Limited 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.