- Companies
- Installers
- Leeds
- Envirotherm Ltd
Envirotherm Ltd
- Company number
- 11758661
- Incorporated
- 9 Jan 20197 years trading
- Registered office
- 25 Melbourne Street, Morley, Leeds, LS27 8BG
- Nature of business
- Other construction installation
Envirotherm Ltd is a 7-year-old private limited company registered in Leeds, company number 11758661, one of 225 installation companies (insulation, lifts, shutters and similar) in Leeds. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £404K (+36.5%) on the year before, to £1.5M.
- Net assets rose in 5 of 5 year-on-year comparisons on record.
- Current assets of £2.3M against £1M owed within a year: 2.3 times cover.
- 11 employees on average, up from 9 the year before.
- 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 |
|---|---|---|---|---|---|
| 31 Jan 2025 | £1.5M | £1.2M | £2.3M | £1M | 11 |
| 31 Jan 2024 | £1.1M | £912K | £1.8M | £860K | 9 |
| 31 Jan 2023 | £901K | £827K | £1.7M | £881K | 11 |
| 31 Jan 2022 | £474K | £868K | £1.2M | £692K | 9 |
| 31 Jan 2021 | £307K | £582K | £793K | £446K | 2 |
| 31 Jan 2020 | £137K | £56K | £245K | £83K | 2 |
Who runs and owns Envirotherm Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| A*** C*** | Director | Mar 2019 |
| R*** C*** | Director | May 2019 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| D*** S*** | Director | Jan 2019 | Mar 2019 |
Person with significant control
Where Envirotherm Ltd is registered
The registered office is in Leeds (LS27), in the Leeds local authority area, Yorkshire and The Humber. Show LS27 8BG on a map.
Other trade companies in LS27
- Penn Plastering Solutions LimitedPlasterers
- Coating Integrity Solutions LtdSpecialist contractors
- Primesure Appliances LimitedRepair services
- Motorpoint Warehouse Leeds LtdMotor traders
- True North Build and Design LtdBuilders
- P3 Studio LtdBuilders
- Tylec Installations LtdElectricians
- J&R Utilities LtdCivil engineering
Also registered at this address
2 other companies use the same registered office as Envirotherm Ltd.
- Morley Ventilation LimitedPlumbers and heating engineers
- MV Testing Yorkshire LimitedPlumbers and heating engineers
What happens if Envirotherm 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 11758661
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 January 2019 (7 years ago)
- Registered office
- 25 Melbourne Street, Morley, Leeds, LS27 8BG
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 19 May 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Leeds
Other active installation companies (insulation, lifts, shutters and similar) registered in Leeds.
- Er Installations Limited2022
- Ersscaffoldingservices Ltd2025
- FD Furnishings Ltd2021
- FG Installations Limited2026
- Fit the North Ltd2024
- Fixxit Limited2020
- Flynn Brickwork Ltd2026
- FMP (Yorkshire) Ltd2006
All installation companies (insulation, lifts, shutters and similar) in Leeds · All trades in Leeds · Installers across the UK
Frequently asked questions
When are Envirotherm Ltd's accounts due?
Envirotherm Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Envirotherm Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Envirotherm Ltd still trading?
Envirotherm 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 Envirotherm Ltd do?
Envirotherm Ltd is registered under Other construction installation (SIC 43290).
How old is Envirotherm Ltd?
Envirotherm Ltd was incorporated on 9 January 2019, 7 years ago.
Who runs Envirotherm Ltd?
Envirotherm Ltd has 2 active directors, the longest-serving appointed in Mar 2019. Their names and service addresses are on the Companies House register.
Who owns Envirotherm Ltd?
One person or company has significant control of Envirotherm Ltd: an individual (has significant influence or control).
What is the penalty if Envirotherm 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 Envirotherm 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.