- Companies
- Plumbers and heating engineers
- Basildon
- Thames Energy Limited
Thames Energy Limited
- Company number
- 02260066
- Incorporated
- 19 May 198838 years trading
- Registered office
- 18 Hemmells, Basildon, Essex, SS15 6ED
- Nature of business
- Plumbing, heat and air-conditioning installation
Thames Energy Limited is a 38-year-old private limited company registered in Basildon, company number 02260066, one of 140 plumbing and heating companies in Basildon. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £15K (-4.6%) on the year before, to £316K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £523K against £229K owed within a year: 2.3 times cover.
- 7 employees on average during the year.
- 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 Mar 2025 | £316K | £257K | £523K | £229K | 7 |
| 31 Mar 2024 | £331K | £208K | £522K | £211K | 7 |
| 31 Mar 2023 | £298K | £148K | £502K | £194K | 7 |
| 31 Mar 2022 | £248K | £109K | £330K | £69K | 7 |
| 31 Mar 2021 | £263K | £178K | £391K | £90K | 7 |
| 31 Mar 2020 | £242K | £40K | £397K | £160K | 7 |
| 31 Mar 2019 | £213K | £67K | £272K | £60K | 8 |
| 31 Mar 2018 | £180K | £29K | £253K | £76K | 8 |
| 31 Mar 2017 | £180K | £14K | £233K | £57K | 8 |
| 31 Mar 2016 | £215K | £23K | £260K | £50K |
Public contracts won
Thames Energy Limited has one public sector contract award on record; the ones with their own published value total £232K (2020). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| London Borough Of Barking And Dagenham | Replacement Boiler Plant and Installation of Heat Meters | £232K | 6 Jan 2020 |
Where Thames Energy Limited is registered
The registered office is in Basildon (SS15), in the Basildon local authority area, East of England. Show SS15 6ED on a map.
Other trade companies in SS15
- Nexa Renovations LtdFinishing trades
- Lilley Build LtdPlasterers
- Timber Glazing Solutions LtdJoiners and carpenters
- Sashbespoke LtdJoiners and carpenters
- Hailsham Estate LtdProperty developers
- Mawhood Asbestos Contracts LtdGroundworks and demolition
- C.V Carpenter LtdBuilders
- Voltcert LtdElectricians
What happens if Thames Energy 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 02260066
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 May 1988 (38 years ago)
- Registered office
- 18 Hemmells, Basildon, Essex, SS15 6ED
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 1 August 2025
- Charges (mortgages)
- 1 outstanding of 2 registered
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 Basildon
Other active plumbing and heating companies registered in Basildon.
- Tropicool Climate Control Limited2008
- TS Plumbing (Essex) Limited2013
- Weldtech Ltd2025
- Woods Taylor (Essex) Ltd2014
- Wright Heating and Plumbing Limited2015
- Ysm Pipework Solutions Ltd2024
- 1ST Response Heating Services Limited2002
- A&D Fire Sprinklers Ltd2022
All plumbing and heating companies in Basildon · All trades in Basildon · Plumbers and heating engineers across the UK
Frequently asked questions
When are Thames Energy Limited's accounts due?
Thames Energy Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Thames Energy Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Thames Energy Limited still trading?
Thames Energy Limited 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 Thames Energy Limited do?
Thames Energy Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Thames Energy Limited?
Thames Energy Limited was incorporated on 19 May 1988, 38 years ago.
Has Thames Energy Limited won public sector contracts?
Yes. Thames Energy Limited has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £232K), most recently from London Borough Of Barking And Dagenham.
What is the penalty if Thames Energy 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 Thames Energy Limited 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.