- Companies
- Installers
- Watford
- Octa Construction Limited
Octa Construction Limited
- Company number
- 08789794
- Incorporated
- 26 Nov 201312 years trading
- Registered office
- 24 Lytham Avenue, Watford, WD19 6XB
- Nature of business
- Other construction installation
Octa Construction Limited is a 12-year-old private limited company registered in Watford, company number 08789794, one of 80 installation companies (insulation, lifts, shutters and similar) in Watford. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £588K (-93%) on the year before, to £44K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- 5 employees on average, up from 4 the year before.
- 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 |
|---|---|---|---|---|---|
| 30 Nov 2025 | £44K | £99K | £303K | 5 | |
| 30 Nov 2024 | £632K | £829K | £829K | £286K | 4 |
| 30 Nov 2023 | £109K | £197K | £197K | £195K | 4 |
| 30 Nov 2022 | £187K | £148K | £151K | £85K | 2 |
| 30 Nov 2021 | £229K | £141K | £71K | 2 | |
| 30 Nov 2020 | £138K | £85K | £62K | 2 | |
| 30 Nov 2019 | £91K | £169K | £169K | £104K | 3 |
| 30 Nov 2018 | £33K | £32K | £41K | £39K | 2 |
| 30 Nov 2017 | £654 | £14K | £32K | £47K | 3 |
| 30 Nov 2016 | £4,579 | £13K | £28K | £41K |
Where Octa Construction Limited is registered
The registered office is in Watford (WD19), in the Three Rivers local authority area, East of England. Show WD19 6XB on a map.
Other trade companies in WD19
- DTVM Security Solutions LtdElectricians
- Scenic Plasterwork’S LtdPlasterers
- Terranova Gardens LtdLandscapers and gardeners
- Synclyst LtdCleaning companies
- Hcdbl Group LtdProperty developers
- Primecore Contracts LimitedBuilders
- Kenworx Plumbing & Heating LtdPlumbers and heating engineers
- Adrclim LimitedBuilders
What happens if Octa Construction 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 31 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 08789794
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 November 2013 (12 years ago)
- Registered office
- 24 Lytham Avenue, Watford, WD19 6XB
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 17 November 2025
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Watford
Other active installation companies (insulation, lifts, shutters and similar) registered in Watford.
- Oldsy Install Ltd2026
- Ovarian Ltd2026
- Ozbrand Limited2024
- Perfect Install Ltd2018
- Prestige Damp Proofing Solutions Ltd2019
- R and B Cabling Limited2026
- R&F Maintenance Ltd2026
- Reynolds Insulation Solutions Ltd2018
All installation companies (insulation, lifts, shutters and similar) in Watford · All trades in Watford · Installers across the UK
Frequently asked questions
When are Octa Construction Limited's accounts due?
Octa Construction Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Octa Construction Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Octa Construction Limited still trading?
Octa Construction 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 Octa Construction Limited do?
Octa Construction Limited is registered under Other construction installation (SIC 43290).
How old is Octa Construction Limited?
Octa Construction Limited was incorporated on 26 November 2013, 12 years ago.
What is the penalty if Octa Construction 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 Octa Construction 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.