- Companies
- Property developers
- Harrow
- Apj Thermal Insulation Ltd
Apj Thermal Insulation Ltd
- Company number
- 10660206
- Incorporated
- 8 Mar 20179 years trading
- Registered office
- 12 Pearmain House, 16 Apple Grove, Harrow, HA2 0FJ
- Nature of business
- Development of building projects; Construction of commercial buildings; Construction of domestic buildings
Apj Thermal Insulation Ltd is a 9-year-old private limited company registered in Harrow, company number 10660206, one of 679 property development companies in Harrow. Its next accounts are due at Companies House on 29 December 2026, and the CT600 for the period to 29 March 2026 is due at HMRC on 29 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 Apj Thermal Insulation 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 £4,723 (+15.6%) on the year before, to £35K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £39K against £4,194 owed within a year: 9.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £35K | £4,758 | £39K | £4,194 | 2 |
| 31 Mar 2024 | £30K | £17K | £38K | £7,429 | 2 |
| 31 Mar 2023 | £18K | £24K | £6,213 | 2 | |
| 31 Mar 2022 | £5,335 | £16K | £10K | 2 | |
| 31 Mar 2021 | £22 | £23K | £23K | 2 | |
| 31 Mar 2020 | £91 | £26K | £26K | 2 | |
| 31 Mar 2019 | -£22 | -£12K | £12K | ||
| 31 Mar 2018 | £505 | £14K | £13K |
Where Apj Thermal Insulation Ltd is registered
The registered office is in Harrow (HA2), in the Harrow local authority area, London. Show HA2 0FJ on a map.
Other trade companies in HA2
- KJP Engineering LtdElectricians
- JNJ Engineering LimitedCivil engineering
- Notting Hill Sew LtdRepair services
- Grandwellautos LtdMotor traders
- Multisteel Powdercoating LtdPainters and decorators
- Neon Systems LtdElectricians
- Firstclass Facilities LtdCleaning companies
- PMD Construct LtdBuilders
What happens if Apj Thermal Insulation 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 29 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Dec 2026 to 29 Jan 2027 | £150 |
| 1 to 3 months late | 30 Jan 2027 to 29 Mar 2027 | £375 |
| 3 to 6 months late | 30 Mar 2027 to 29 Jun 2027 | £750 |
| More than 6 months late | From 30 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Mar 2027 | £200 |
| 3 months late | 29 Jun 2027 | another £200 |
| 6 months late | 29 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 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
- 10660206
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 March 2017 (9 years ago)
- Registered office
- 12 Pearmain House, 16 Apple Grove, Harrow, HA2 0FJ
- Nature of business
- Development of building projects (SIC 41100)
Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 29 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 7 March 2026
- Previous names
- Apj Construct Ltd (until 1 May 2018)
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 Harrow
Other active property development companies registered in Harrow.
- Aquabuild Ltd2020
- Ara Construction Design Ltd2021
- Arg Group Ltd2020
- Argyle House Property Development Limited2015
- Arkas Investments Limited2019
- Armour Property Services Limited2007
- Arr Builds Ltd2024
- Arys Contractors Ltd2020
All property development companies in Harrow · All trades in Harrow · Property developers across the UK
Frequently asked questions
When are Apj Thermal Insulation Ltd's accounts due?
Apj Thermal Insulation Ltd's next accounts are due at Companies House by 29 December 2026 (in 77 days), covering the period to 29 March 2026.
When is Apj Thermal Insulation Ltd's CT600 due?
The CT600 for the period to 29 March 2026 is due at HMRC by 29 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 December 2026.
Is Apj Thermal Insulation Ltd still trading?
Apj Thermal Insulation 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 Apj Thermal Insulation Ltd do?
Apj Thermal Insulation Ltd is registered under Development of building projects (SIC 41100); Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Apj Thermal Insulation Ltd?
Apj Thermal Insulation Ltd was incorporated on 8 March 2017, 9 years ago.
What is the penalty if Apj Thermal Insulation 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 Apj Thermal Insulation 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.