- Companies
- Installers
- Portsmouth
- Lamonbys Limited
Lamonbys Limited
- Company number
- 07433849
- Incorporated
- 9 Nov 201015 years trading
- Registered office
- Lake House 2 Port Way, Port Solent, Portsmouth, Hampshire, PO6 4TY
- Nature of business
- Other construction installation
Lamonbys Limited is a 15-year-old private limited company registered in Portsmouth, company number 07433849, one of 84 installation companies (insulation, lifts, shutters and similar) in Portsmouth. 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 £766 (+0.2%) on the year before, to -£352K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- 1 employee 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 | -£352K | £571 | £353K | 1 | |
| 30 Nov 2024 | -£353K | £124 | £354K | 1 | |
| 30 Nov 2023 | -£354K | £1,257 | £1,257 | £356K | 1 |
| 30 Nov 2022 | -£349K | £4,607 | £6,503 | £358K | 2 |
| 30 Nov 2021 | -£345K | £22K | £24K | £374K | 5 |
| 30 Nov 2020 | -£275K | £133K | £164K | £403K | 5 |
| 30 Nov 2019 | -£300K | £32K | £116K | £538K | 10 |
| 30 Nov 2018 | -£248K | £8,114 | £261K | £634K | 19 |
| 30 Nov 2017 | -£154K | £15K | £382K | £655K | 39 |
| 30 Nov 2016 | -£288K | £10K | £142K | £555K |
Where Lamonbys Limited is registered
The registered office is in Portsmouth (PO6), in the Portsmouth local authority area, South East. Show PO6 4TY on a map.
Other trade companies in PO6
- Bellagio Partners LtdBuilders
- Cpenw LtdMachinery repair and installation
- Marla Brickwork & Construction LtdProperty developers
- Miracles in Metal LtdMechanics and garages
- FH Fire & Electrical LtdElectricians
- Thomcore LimitedSpecialist contractors
- JMS Southern LtdElectricians
- The Motum Group LtdSpecialist contractors
Shared registered office
55 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Lamonbys 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
- 07433849
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 November 2010 (15 years ago)
- Registered office
- Lake House 2 Port Way, Port Solent, Portsmouth, Hampshire, PO6 4TY
- 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
- 25 April 2026
- Charges (mortgages)
- 0 outstanding of 2 registered
- Previous names
- Lamonby Heating Ltd (until 27 Oct 2015)
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 Portsmouth
Other active installation companies (insulation, lifts, shutters and similar) registered in Portsmouth.
- M & L Page Construction Ltd2004
- MJRM Construction Ltd2026
- Molco Interiors Ltd2024
- Pivotal Ac Limited2026
- Priory Building & Development Limited2003
- Profix Southern Ltd2017
- R Future Groundworks and Construction Limited2025
- R Sullivan Carpentry Ltd2025
All installation companies (insulation, lifts, shutters and similar) in Portsmouth · All trades in Portsmouth · Installers across the UK
Frequently asked questions
When are Lamonbys Limited's accounts due?
Lamonbys Limited's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Lamonbys 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 Lamonbys Limited still trading?
Lamonbys 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 Lamonbys Limited do?
Lamonbys Limited is registered under Other construction installation (SIC 43290).
How old is Lamonbys Limited?
Lamonbys Limited was incorporated on 9 November 2010, 15 years ago.
What is the penalty if Lamonbys 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 Lamonbys 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.