- Companies
- Specialist contractors
- London
- Heat Interface Team Ltd
Heat Interface Team Ltd
- Company number
- 09226702
- Incorporated
- 19 Sep 201412 years trading
- Registered office
- Hallswelle House, 1 Hallswelle Road, London, NW11 0DH
- Nature of business
- Other specialised construction activities n.e.c.
Heat Interface Team Ltd is a 12-year-old private limited company registered in London, company number 09226702, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 28 November 2026, and its first CT600 is due at HMRC on 31 August 2026.
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 up £101K (+19.2%) on the year before, to £631K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £909K against £364K owed within a year: 2.5 times cover.
- 8 employees on average during the year.
- Balance sheets on record for 10 years, 2015 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2024 | £631K | £82K | £909K | £364K | 8 |
| 31 Aug 2023 | £529K | £316K | £614K | £95K | 8 |
| 31 Aug 2022 | £428K | £381K | £572K | £118K | 8 |
| 31 Aug 2021 | £396K | £405K | £644K | £241K | 6 |
| 31 Aug 2020 | £198K | £269K | £590K | £387K | 6 |
| 31 Aug 2019 | £69K | £76K | £120K | £78K | 4 |
| 31 Aug 2018 | £64K | £174K | £238K | £177K | 4 |
| 31 Aug 2017 | £2,102 | £46K | £44K | ||
| 31 Aug 2016 | £991 | £30K | £30K | ||
| 30 Sep 2015 | £13K | £80K | £68K |
Where Heat Interface Team Ltd is registered
The registered office is in London (NW11), in the Barnet local authority area, London. Show NW11 0DH on a map.
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Also registered at this address
19 other companies use the same registered office as Heat Interface Team Ltd.
- A H Fire Preventions LimitedFacilities management
- Bidfield LimitedProperty developers
- Big Sur (Sparkford) LimitedProperty developers
- Ferngreen LimitedProperty developers
- Genus Pyrus LimitedProperty developers
- Henview LimitedProperty developers
- Holmes Assets LimitedBuilders
- Malcolm Park Projects LimitedProperty developers
- Max Motorcycles LimitedMotor traders
- Mbe&N Estates LimitedProperty developers
- MSSB LimitedProperty developers
- Newpeach LimitedProperty developers
- One Seventy Nine LimitedProperty developers
- Peach Investments LimitedProperty developers
- PPR Wandle LimitedProperty developers
- Sibell Trading LimitedProperty developers
- Sidcup Developments LimitedProperty developers
- Sunny Garden Projects LtdProperty developers
- Vocen Cleaning Services LimitedCleaning companies
What happens if Heat Interface Team 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 28 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Nov 2026 to 28 Dec 2026 | £150 |
| 1 to 3 months late | 29 Dec 2026 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 28 May 2027 | £750 |
| More than 6 months late | From 29 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 09226702
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 September 2014 (12 years ago)
- Registered office
- Hallswelle House, 1 Hallswelle Road, London, NW11 0DH
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 29 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2024
- Last confirmation statement
- 19 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 London
Other active specialist construction companies registered in London.
- Heathrow Cranes Ltd2014
- Hecta Construction Ltd2024
- Hedingham Glass Ltd2025
- Help London Ltd2016
- Henant Integrated UK Limited2018
- Henderson.S.Services Ltd2020
- Henlay Services Ltd2021
- Herghehydro Ltd2014
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Heat Interface Team Ltd's accounts due?
Heat Interface Team Ltd's next accounts are due at Companies House by 28 November 2026 (in 47 days), covering the period to 28 February 2026.
When is Heat Interface Team Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 August 2025, due by 31 August 2026, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Heat Interface Team Ltd still trading?
Heat Interface Team 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 Heat Interface Team Ltd do?
Heat Interface Team Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Heat Interface Team Ltd?
Heat Interface Team Ltd was incorporated on 19 September 2014, 12 years ago.
What is the penalty if Heat Interface Team 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 Heat Interface Team 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.