- Companies
- Plumbers and heating engineers
- Leeds
- STM Energy Services Limited
STM Energy Services Limited
- Company number
- 15539519
- Incorporated
- 4 Mar 20242 years trading
- Registered office
- 25-29 Sandy Way, Yeadon, Leeds, LS19 7EW
- Nature of business
- Plumbing, heat and air-conditioning installation
STM Energy Services Limited is a 2-year-old private limited company registered in Leeds, company number 15539519, one of 357 plumbing and heating companies in Leeds. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £19K (-98.2%) on the year before, to -£39K.
- Current assets of £214 against £60K owed within a year: 0.0 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | -£39K | £214 | £60K | 1 | |
| 31 Mar 2025 | -£20K | £24 | £38K | 0 |
Where STM Energy Services Limited is registered
The registered office is in Leeds (LS19), in the Leeds local authority area, Yorkshire and The Humber. Show LS19 7EW on a map.
Other trade companies in LS19
- TSL Automotive LtdMotor traders
- Landscape 94 LtdLandscapers and gardeners
- Bingley Builders LtdBuilders
- PP&H LtdPlumbers and heating engineers
- Agm Renovations LtdInstallers
- Mla Roofing LtdRoofers
- Centro Facilities LimitedFacilities management
- Dave Quinn Joinery Contractor LtdJoiners and carpenters
Shared registered office
162 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 STM Energy Services 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 15539519
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 March 2024 (2 years ago)
- Registered office
- 25-29 Sandy Way, Yeadon, Leeds, LS19 7EW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 3 March 2026
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 Leeds
Other active plumbing and heating companies registered in Leeds.
- Sunderland Energy Limited2025
- Supreme Heating Solutions Ltd2015
- Swishfix Limited2026
- Synergy Heating & Renewables Ltd2025
- T Howes Limited2006
- T P Harris Plumbing and Heating Limited2013
- T.M West Trading Ltd2023
- T.M. West Plumbing Services Limited1987
All plumbing and heating companies in Leeds · All trades in Leeds · Plumbers and heating engineers across the UK
Frequently asked questions
When are STM Energy Services Limited's accounts due?
STM Energy Services Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is STM Energy Services Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is STM Energy Services Limited still trading?
STM Energy Services 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 STM Energy Services Limited do?
STM Energy Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is STM Energy Services Limited?
STM Energy Services Limited was incorporated on 4 March 2024, 2 years ago.
What is the penalty if STM Energy Services 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 STM Energy Services 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.