- Companies
- Installers
- Havant
- Harbourside Windows and Conservatories Limited
Harbourside Windows and Conservatories Limited
- Company number
- 05536287
- Incorporated
- 15 Aug 200521 years trading
- Registered office
- 2 Downley Road, Havant, PO9 2NJ
- Nature of business
- Other construction installation
Harbourside Windows and Conservatories Limited is a 21-year-old private limited company registered in Havant, company number 05536287, one of 11 installation companies (insulation, lifts, shutters and similar) in Havant. 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 up £235K (+49.4%) on the year before, to £712K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £1.1M against £477K owed within a year: 2.4 times cover.
- 16 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 |
|---|---|---|---|---|---|
| 30 Nov 2025 | £712K | £141K | £1.1M | £477K | 16 |
| 30 Nov 2024 | £477K | £87K | £720K | £281K | 16 |
| 30 Nov 2023 | £698K | £37K | £876K | £486K | 12 |
| 31 Jul 2022 | £696K | £38K | £940K | £424K | 11 |
| 31 Jul 2021 | £713K | £27K | £898K | £318K | 11 |
| 31 Jul 2020 | £731K | £90K | £1M | £285K | 10 |
| 31 Jul 2019 | £87K | £75K | £340K | £244K | 8 |
| 31 Jul 2018 | £3,336 | £27K | £184K | £191K | 7 |
| 31 Jul 2017 | £1,929 | £19K | £129K | £146K | 7 |
| 31 Jul 2016 | £8,239 | £3,124 | £108K | £137K |
Where Harbourside Windows and Conservatories Limited is registered
The registered office is in Havant (PO9), in the Havant local authority area, South East. Show PO9 2NJ on a map.
Other trade companies in PO9
- Frontline Gas LtdPlumbers and heating engineers
- RLB Building Services LtdFinishing trades
- KS Electrical Contractors LtdElectricians
- Kja-Auditing LtdSpecialist contractors
- Ajl Group LtdBuilders
- Top Premium Hand Car Wash LtdCleaning companies
- Moz-Tec Plastering LtdPlasterers
- MLM Civil Engineering LtdBuilders
Also registered at this address
2 other companies use the same registered office as Harbourside Windows and Conservatories Limited.
- Dyn@Mic Developments LtdBuilders
- Harbourside Group LimitedInstallers
What happens if Harbourside Windows and Conservatories 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
- 05536287
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 August 2005 (21 years ago)
- Registered office
- 2 Downley Road, Havant, PO9 2NJ
- 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
- 2 November 2025
- Charges (mortgages)
- 0 outstanding of 1 registered
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 Havant
Other active installation companies (insulation, lifts, shutters and similar) registered in Havant.
- RGL Construction Consultancies Ltd2026
- S&K Bathrooms Ltd2016
- Seeley Construction Ltd2015
- Solaro Systems Ltd2025
- Stasys Drylining Ltd2021
- Williamson Menzies Limited2011
- DJS-Ltd Refurbishment Ltd2023
- Energio Ltd2025
All installation companies (insulation, lifts, shutters and similar) in Havant · All trades in Havant · Installers across the UK
Frequently asked questions
When are Harbourside Windows and Conservatories Limited's accounts due?
Harbourside Windows and Conservatories 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 Harbourside Windows and Conservatories 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 Harbourside Windows and Conservatories Limited still trading?
Harbourside Windows and Conservatories 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 Harbourside Windows and Conservatories Limited do?
Harbourside Windows and Conservatories Limited is registered under Other construction installation (SIC 43290).
How old is Harbourside Windows and Conservatories Limited?
Harbourside Windows and Conservatories Limited was incorporated on 15 August 2005, 21 years ago.
What is the penalty if Harbourside Windows and Conservatories 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 Harbourside Windows and Conservatories 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.