- Companies
- Plumbers and heating engineers
- Taunton
- Thermo-Fix Ltd
Thermo-Fix Ltd
- Company number
- 12112742
- Incorporated
- 19 Jul 20197 years trading
- Registered office
- First Floor Blackbrook Gate 1, Blackbrook Business Park, Taunton, Somerset, TA1 2PX
- Nature of business
- Plumbing, heat and air-conditioning installation
Thermo-Fix Ltd is a 7-year-old private limited company registered in Taunton, company number 12112742, one of 63 plumbing and heating companies in Taunton. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Thermo-Fix LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £5,132 on the year before, to £5,215.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- 4 employees on average, up from 3 the year before.
- Balance sheets on record for 7 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £5,215 | £5,850 | £77K | 4 | |
| 31 Aug 2024 | £83 | £0 | £67K | 3 | |
| 31 Jan 2024 | -£3,679 | £4,252 | £59K | 3 | |
| 31 Jan 2023 | -£12K | £7,790 | £59K | £69K | 4 |
| 31 Jan 2022 | -£13K | £1,509 | £24K | £25K | 4 |
| 31 Jan 2021 | £22K | £8,845 | £63K | £27K | 4 |
| 31 Jan 2020 | £17K | £1,145 | £8,621 | £2,267 | 1 |
Where Thermo-Fix Ltd is registered
The registered office is in Taunton (TA1), in the Somerset local authority area, South West. Show TA1 2PX on a map.
Other trade companies in TA1
- Pure Rinse Car Wash LimitedMechanics and garages
- Barmond Carpets and Flooring LtdFloor and wall tilers
- Ekko Cars & Commercials LtdMotor traders
- Whitmores Fencing LtdLandscapers and gardeners
- T.A.M Contracting LtdCivil engineering
- 27 Performance LimitedMotor traders
- M J Motors (SW) LimitedMechanics and garages
- Electroalpha LtdElectricians
Also registered at this address
12 other companies use the same registered office as Thermo-Fix Ltd.
- Avondale Painting and Decorating LimitedFinishing trades
- C.I.P. Services LimitedCleaning companies
- Cobh Developments LimitedBuilders
- Coleman Plumbing & Heating LimitedPlumbers and heating engineers
- Colin Merrick LimitedFinishing trades
- Homewood (South West) LimitedProperty developers
- K&M (South West) LimitedProperty developers
- Landmark Southern LimitedProperty developers
- Pete Coleman Auto Body Repairs LimitedMechanics and garages
- RMK Contractors and Electrical Services LtdInstallers
- T G Roofing LimitedRoofers
- Yew Tree (Group) LimitedFinishing trades
What happens if Thermo-Fix 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 12112742
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 July 2019 (7 years ago)
- Registered office
- First Floor Blackbrook Gate 1, Blackbrook Business Park, Taunton, Somerset, TA1 2PX
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 1 June 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 Taunton
Other active plumbing and heating companies registered in Taunton.
- Tone Heating Ltd2020
- Total Bathrooms (SW) Limited2024
- W S Plumbing and Heating Services Ltd2025
- Westerly Plumbing and Heating Limited2018
- Westford Mechanical Limited2003
- WML (Taunton) Limited2013
- A Fry Plumbing & Heating Limited2019
- A. Stewart Plumbing & Heating Services Limited2026
All plumbing and heating companies in Taunton · All trades in Taunton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Thermo-Fix Ltd's accounts due?
Thermo-Fix Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Thermo-Fix Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Thermo-Fix Ltd still trading?
Thermo-Fix 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 Thermo-Fix Ltd do?
Thermo-Fix Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Thermo-Fix Ltd?
Thermo-Fix Ltd was incorporated on 19 July 2019, 7 years ago.
What is the penalty if Thermo-Fix 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 Thermo-Fix 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.