- Companies
- Property developers
- Slough
- Thermohouse UK Ltd
Thermohouse UK Ltd
- Company number
- 08644424
- Incorporated
- 9 Aug 201313 years trading
- Registered office
- 2 White Hart Road, White Hart Road, Slough, SL1 2SF
- Nature of business
- Development of building projects
Thermohouse UK Ltd is a 13-year-old private limited company registered in Slough, company number 08644424, one of 316 property development companies in Slough. 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.
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 Thermohouse UK 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 down £380K (-69.7%) on the year before, to -£926K.
- Net assets rose in 2 of 9 year-on-year comparisons on record.
- Current assets of £210K against £204K owed within a year: 1.0 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 10 years, 2014 to 2023.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2023 | -£926K | £52K | £210K | £204K | 3 |
| 31 Mar 2022 | -£545K | £4,661 | £209K | £111K | 3 |
| 31 Mar 2021 | -£369K | £97K | £257K | £158K | 4 |
| 31 Mar 2020 | -£113K | £142K | £353K | £505K | 5 |
| 31 Mar 2019 | -£75K | £125K | £308K | £320K | |
| 31 Aug 2018 | -£114K | £128K | £351K | £406K | |
| 31 Aug 2017 | £5,570 | £120K | £322K | £260K | |
| 31 Aug 2016 | £63K | £11K | £176K | £233K | |
| 31 Aug 2015 | £168K | £51K | £252K | £204K | |
| 31 Aug 2014 | £22K | £15K | £49K | £27K |
Where Thermohouse UK Ltd is registered
The registered office is in Slough (SL1), in the Slough local authority area, South East. Show SL1 2SF on a map.
Other trade companies in SL1
- Yanky Construction LtdBuilders
- Westside Automotive LtdMotor traders
- Shadeworks LtdInstallers
- Yad Building Services LimitedBuilders
- Slough Vehicle Repair Centre LtdMechanics and garages
- Hadi Automotive LtdMotor traders
- Imperial Berkshire Motors LtdMotor traders
- MDN General LtdBuilders
Also registered at this address
1 other company uses the same registered office as Thermohouse UK Ltd.
- Draw2Designs LimitedSpecialist contractors
What happens if Thermohouse UK 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
- 08644424
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 August 2013 (13 years ago)
- Registered office
- 2 White Hart Road, White Hart Road, Slough, SL1 2SF
- Nature of business
- Development of building projects (SIC 41100)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 31 July 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for property development companies
Many property development companies are single-project vehicles. Stock of land and buildings sits on the balance sheet as work in progress until sale, and a company that has finished its project may become dormant rather than close.
Similar companies in Slough
Other active property development companies registered in Slough.
- Thind Build & Renovate Ltd2025
- Three M'S Harwich Limited2006
- Titan Resin & Paving Ltd2025
- TMB Developments Ltd2017
- Topit-UK Ltd2016
- Trojan Homes Ltd2019
- TT26 Limited2026
- Tudor M Construction Ltd2020
All property development companies in Slough · All trades in Slough · Property developers across the UK
Frequently asked questions
When are Thermohouse UK Ltd's accounts due?
Thermohouse UK Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Thermohouse UK 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 Thermohouse UK Ltd still trading?
Thermohouse UK 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 Thermohouse UK Ltd do?
Thermohouse UK Ltd is registered under Development of building projects (SIC 41100).
How old is Thermohouse UK Ltd?
Thermohouse UK Ltd was incorporated on 9 August 2013, 13 years ago.
What is the penalty if Thermohouse UK 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 Thermohouse UK 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.