- Companies
- Installers
- Southampton
- Thermal Services (Insulation) Ltd
Thermal Services (Insulation) Ltd
- Company number
- 07355578
- Incorporated
- 24 Aug 201016 years trading
- Registered office
- 1 Post Office House 1 Post Office House, 184 Bridge Road, Southampton, Hampshire, SO31 7ED
- Nature of business
- Other construction installation
Thermal Services (Insulation) Ltd is a 16-year-old private limited company registered in Southampton, company number 07355578, one of 132 installation companies (insulation, lifts, shutters and similar) in Southampton. 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 £7,940 (-7.2%) on the year before, to £102K.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £217K against £123K owed within a year: 1.8 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £102K | £15K | £217K | £123K | 1 |
| 31 Mar 2024 | £110K | £42K | £216K | £111K | 2 |
| 31 Mar 2023 | £79K | £19K | £197K | £119K | 2 |
| 31 Mar 2022 | £121K | £53K | £262K | £137K | 2 |
Where Thermal Services (Insulation) Ltd is registered
The registered office is in Southampton (SO31), in the Fareham local authority area, South East. Show SO31 7ED on a map.
Other trade companies in SO31
- MNC Cleaning LtdCleaning companies
- Mars Eng. LtdMachinery repair and installation
- Amc Plumbing and Heating LtdPlumbers and heating engineers
- Pride & Bloom LtdLandscapers and gardeners
- Hampshire Heating and Cooling LtdPlumbers and heating engineers
- Kelpie Landscape & Build LtdFinishing trades
- FSC Facilities Services LtdInstallers
- Fitton & Redding Services LimitedMechanics and garages
Also registered at this address
3 other companies use the same registered office as Thermal Services (Insulation) Ltd.
- Berkshire Cleaning Services LimitedCleaning companies
- Turay LimitedPlumbers and heating engineers
- Victory Rose Building Services LtdFinishing trades
What happens if Thermal Services (Insulation) 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 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
- 07355578
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 August 2010 (16 years ago)
- Registered office
- 1 Post Office House 1 Post Office House, 184 Bridge Road, Southampton, Hampshire, SO31 7ED
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 15 August 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 Southampton
Other active installation companies (insulation, lifts, shutters and similar) registered in Southampton.
- Thompson Insulation Limited2002
- Thorne Fencing Limited2022
- Total Projects (Southern) Limited2022
- Tranquility Contractors Limited2022
- Ubuntu 52 Ltd2023
- UK Loftsaver Ltd2025
- Vanguard PFP & Joinery Ltd2019
- Vear Building Services Limited1995
All installation companies (insulation, lifts, shutters and similar) in Southampton · All trades in Southampton · Installers across the UK
Frequently asked questions
When are Thermal Services (Insulation) Ltd's accounts due?
Thermal Services (Insulation) Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Thermal Services (Insulation) Ltd'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 Thermal Services (Insulation) Ltd still trading?
Thermal Services (Insulation) 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 Thermal Services (Insulation) Ltd do?
Thermal Services (Insulation) Ltd is registered under Other construction installation (SIC 43290).
How old is Thermal Services (Insulation) Ltd?
Thermal Services (Insulation) Ltd was incorporated on 24 August 2010, 16 years ago.
What is the penalty if Thermal Services (Insulation) 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 Thermal Services (Insulation) 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.