- Companies
- Specialist contractors
- Newtownards
- Thermocon NI Ltd
Thermocon NI Ltd
- Company number
- NI691191
- Incorporated
- 15 Sep 20224 years trading
- Registered office
- 51 Ringneill Road, Comber, Newtownards, BT23 6EF
- Nature of business
- Other specialised construction activities n.e.c.
Thermocon NI Ltd is a 4-year-old private limited company registered in Newtownards, company number NI691191, one of 16 specialist construction companies in Newtownards. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £174 (-21.7%) on the year before, to £629.
- Current assets of £12K against £11K owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £629 | £354 | £12K | £11K | 0 |
| 30 Sep 2024 | £803 | £5,842 | £32K | £31K | 0 |
| 30 Sep 2023 | £1,155 | £61K | £60K | 0 |
Where Thermocon NI Ltd is registered
The registered office is in Newtownards (BT23), in the Ards and North Down local authority area, Northern Ireland. Show BT23 6EF on a map.
Other trade companies in BT23
- Ards Comber Boiler Services LimitedPlumbers and heating engineers
- B2B Brickwork LtdBuilders
- Paxco LimitedMotor traders
- Valtori LtdMotor traders
- DJH Boiler Services (2026) LtdPlumbers and heating engineers
- SK Motor Trade & Tools LtdMotor traders
- Redline Vehicle Repairs LtdMechanics and garages
- JSW Siphonic Roof Drainage LtdRoofers
What happens if Thermocon NI 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- NI691191
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 September 2022 (4 years ago)
- Registered office
- 51 Ringneill Road, Comber, Newtownards, BT23 6EF
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 14 September 2026
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 Newtownards
Other active specialist construction companies registered in Newtownards.
- Trasnagh Limited2022
- W J McCormick Contracts Limited2015
- Apex Pharaoh Limited2005
- Cahn Building Services Ltd2024
- CJM Facilities Management Ltd2025
- Coffey Construction Solutions Ltd2019
- Core & Saw Ireland Ltd2019
- Echlinville Building & Civil Engineering Ltd2023
All specialist construction companies in Newtownards · All trades in Newtownards · Specialist contractors across the UK
Frequently asked questions
When are Thermocon NI Ltd's accounts due?
Thermocon NI Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Thermocon NI Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Thermocon NI Ltd still trading?
Thermocon NI 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 Thermocon NI Ltd do?
Thermocon NI Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Thermocon NI Ltd?
Thermocon NI Ltd was incorporated on 15 September 2022, 4 years ago.
What is the penalty if Thermocon NI 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 Thermocon NI 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.