- Companies
- Finishing trades
- Nottingham
- Thermaseal Windows and Doors Limited
Thermaseal Windows and Doors Limited
- Company number
- 07086751
- Incorporated
- 25 Nov 200916 years trading
- Registered office
- 4 Brand Street, Nottingham, NG2 3GW
- Nature of business
- Other building completion and finishing
Thermaseal Windows and Doors Limited is a 16-year-old private limited company registered in Nottingham, company number 07086751, one of 243 building finishing companies in Nottingham. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £137K (-19.6%) on the year before, to £562K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £419K against £68K owed within a year: 6.2 times cover.
- 6 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 Dec 2025 | £562K | £397K | £419K | £68K | 6 |
| 31 Dec 2024 | £699K | £786K | £847K | £158K | 6 |
| 31 Dec 2023 | £634K | £514K | £758K | £137K | 6 |
| 31 Dec 2022 | £587K | £559K | £677K | £107K | 6 |
| 31 Dec 2021 | £481K | £452K | £601K | £143K | 0 |
| 31 Dec 2020 | £382K | £440K | £504K | £129K | 0 |
| 31 Dec 2019 | £313K | £227K | £430K | £125K | 0 |
| 31 Dec 2018 | £239K | £96K | £329K | £97K | 6 |
| 31 Dec 2017 | £218K | £153K | £297K | £89K | 6 |
| 31 Dec 2016 | £218K | £122K | £303K | £91K | 6 |
Where Thermaseal Windows and Doors Limited is registered
The registered office is in Nottingham (NG2), in the Nottingham local authority area, East Midlands. Show NG2 3GW on a map.
Other trade companies in NG2
- A J Douglas Developments LimitedProperty developers
- Al Rayan Builder LtdBuilders
- T’S MOT Services LtdMechanics and garages
- Greenbook Construction LtdFinishing trades
- Premium Spraying LtdPainters and decorators
- R2G Autocentre LimitedMechanics and garages
- As Elite Cleaning Services LimitedCleaning companies
- Aj Ancillary Services LtdCleaning companies
What happens if Thermaseal Windows and Doors 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 07086751
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 November 2009 (16 years ago)
- Registered office
- 4 Brand Street, Nottingham, NG2 3GW
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 29 November 2025
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Nottingham
Other active building finishing companies registered in Nottingham.
- Tige Consultants Ltd2013
- Titan Property Repairs Ltd2025
- Tomskitchendesign Limited2017
- Tuxford Developments Limited2001
- TW.Restoration Limited2020
- Uniflow Mep Ltd2023
- Vernons Property Improvements Ltd2017
- Vertex Property Maintenance Ltd2022
All building finishing companies in Nottingham · All trades in Nottingham · Finishing trades across the UK
Frequently asked questions
When are Thermaseal Windows and Doors Limited's accounts due?
Thermaseal Windows and Doors Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Thermaseal Windows and Doors Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Thermaseal Windows and Doors Limited still trading?
Thermaseal Windows and Doors 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 Thermaseal Windows and Doors Limited do?
Thermaseal Windows and Doors Limited is registered under Other building completion and finishing (SIC 43390).
How old is Thermaseal Windows and Doors Limited?
Thermaseal Windows and Doors Limited was incorporated on 25 November 2009, 16 years ago.
What is the penalty if Thermaseal Windows and Doors 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 Thermaseal Windows and Doors 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.