- Companies
- Plumbers and heating engineers
- Newark
- Therm Conservation Limited
Therm Conservation Limited
- Company number
- 01324161
- Incorporated
- 3 Aug 197749 years trading
- Registered office
- Balderton Hall Rubys Avenue, Fernwood, Newark, NG24 3RG
- Nature of business
- Plumbing, heat and air-conditioning installation
Therm Conservation Limited is a 49-year-old private limited company registered in Newark, company number 01324161, one of 45 plumbing and heating companies in Newark. 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 £222 (-19.9%) on the year before, to £892.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £23K against £12K owed within a year: 1.9 times cover.
- 3 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 | £892 | £23K | £12K | 3 | |
| 31 Mar 2024 | £1,114 | £35K | £22K | 3 | |
| 31 Mar 2023 | £13K | £67K | 3 | ||
| 31 Mar 2022 | £3,302 | £58K | £37K | 3 | |
| 31 Mar 2021 | £10K | £99K | £65K | 3 | |
| 31 Mar 2020 | £1,853 | £25K | £21K | 3 | |
| 31 Mar 2019 | -£1,136 | -£24K | £19K | 3 | |
| 31 Mar 2018 | -£1,262 | -£47K | £44K | 3 | |
| 31 Mar 2017 | £852 | £15K | £30K | £31K | 3 |
| 31 Mar 2016 | £371 | £20K | £31K | £32K |
Where Therm Conservation Limited is registered
The registered office is in Newark (NG24), in the Newark and Sherwood local authority area, East Midlands. Show NG24 3RG on a map.
Other trade companies in NG24
- Precision Interior Projects LtdPlumbers and heating engineers
- GVL Commercial Services LtdMechanics and garages
- Alliance Trading & Motors LtdMotor traders
- Laurenta & Co LtdProperty developers
- Bolmar Group LtdSpecialist contractors
- Notts Developments LtdBuilders
- Aib Holdings LtdBuilders
- Snutch Commercial LtdMechanics and garages
What happens if Therm Conservation 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
- 01324161
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 August 1977 (49 years ago)
- Registered office
- Balderton Hall Rubys Avenue, Fernwood, Newark, NG24 3RG
- 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 2025
- Last confirmation statement
- 16 January 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 Newark
Other active plumbing and heating companies registered in Newark.
- Trent Ceramics Limited1978
- Trusted Energy Solutions Limited2010
- Wain Or Shine Plumbing and Heating Limited2021
- 1ST Gas Limited2016
- A B Plumbing & Heating (1992) Limited2006
- A Howe Plumbing & Heating Ltd2012
- A L A Services Limited2023
- Adam Bathrooms Limited2008
All plumbing and heating companies in Newark · All trades in Newark · Plumbers and heating engineers across the UK
Frequently asked questions
When are Therm Conservation Limited's accounts due?
Therm Conservation Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Therm Conservation 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 Therm Conservation Limited still trading?
Therm Conservation 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 Therm Conservation Limited do?
Therm Conservation Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Therm Conservation Limited?
Therm Conservation Limited was incorporated on 3 August 1977, 49 years ago.
What is the penalty if Therm Conservation 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 Therm Conservation 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.