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- Thermax Contracting Services Limited
Company profile · Specialist contractors
Thermax Contracting Services Limited
Thermax Contracting Services Limited is a 40-year-old private limited company registered in Sheffield, company number 01973476, one of 267 specialist construction companies in Sheffield. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 October 2025, as filed at Companies House.
Thermax Contracting Services Limited over the years
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 £23K (-34.2%) on the year before, to £44K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £273K against £378K owed within a year: 0.7 times cover.
- 9 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 Oct 2025 | £44K | £45K | £273K | £378K | 9 |
| 31 Oct 2024 | £66K | £41K | £177K | £230K | 9 |
| 31 Oct 2023 | £76K | £85 | £177K | £164K | 9 |
| 31 Oct 2022 | £36K | £92K | £176K | £141K | 9 |
| 31 Oct 2021 | £139K | £40K | £272K | £99K | 15 |
| 31 Oct 2020 | £106K | £108K | £215K | £91K | 10 |
| 31 Oct 2019 | £150K | £3,527 | £203K | £164K | 10 |
| 31 Oct 2018 | £83K | £168K | £300K | £227K | 10 |
| 31 Oct 2017 | £68K | £108K | £264K | £208K | 10 |
| 31 Oct 2016 | £33K | £3,403 | £201K | £181K |
Who runs and owns Thermax Contracting Services Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (3)
| Name | Role | Appointed |
|---|---|---|
| S*** H*** | Director | before Sep 1991 |
| R*** H*** | Director | Oct 2011 |
| S*** H*** | Secretary | before Sep 1991 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| M*** H*** | Director | Sep 2013 |
People with significant control (2)
Charges (secured borrowing)
2 of 2 registered charges are outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| National Westminster Bank PLC | Outstanding | Dec 2018 |
| National Westminster Bank PLC | Outstanding | Dec 1991 |
Where Thermax Contracting Services Limited is registered
The registered office is in Sheffield (S2), in the Sheffield local authority area, Yorkshire and The Humber. Show S2 3AB on a map.
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What happens if Thermax Contracting 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 01973476
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 December 1985 (40 years ago)
- Registered office
- 18-24 Gleadless Road, Sheffield, S2 3AB
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 1 October 2025
- Charges (mortgages)
- 2 outstanding of 2 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 Sheffield
Other active specialist construction companies registered in Sheffield.
- Time Architects Limited2012
- TJW Contracting Ltd2009
- Todayword Limited1994
- Tordoff Holmes Ltd2017
- Turner Lambert Limited2015
- UK Workspace Limited2003
- Urban Abseil Ltd2011
- Utility Works Limited2024
All specialist construction companies in Sheffield · All trades in Sheffield · Specialist contractors across the UK
Frequently asked questions
When are Thermax Contracting Services Limited's accounts due?
Thermax Contracting Services Limited's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Thermax Contracting Services Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Thermax Contracting Services Limited still trading?
Thermax Contracting 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 Thermax Contracting Services Limited do?
Thermax Contracting Services Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Thermax Contracting Services Limited?
Thermax Contracting Services Limited was incorporated on 20 December 1985, 40 years ago.
Who runs Thermax Contracting Services Limited?
Thermax Contracting Services Limited has 2 active directors, the longest-serving appointed in Oct 2011. Their names and service addresses are on the Companies House register.
Who owns Thermax Contracting Services Limited?
2 people or companies have significant control of Thermax Contracting Services Limited: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if Thermax Contracting 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 Thermax Contracting 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.