- Companies
- Installers
- Pwllheli
- Penllyn Conservatories Limited
Penllyn Conservatories Limited
- Company number
- 04960491
- Incorporated
- 11 Nov 200322 years trading
- Registered office
- 1 Thomas Buildings, New Street, Pwllheli, Gwynedd, LL53 5HH
- Nature of business
- Other construction installation; Glazing
Penllyn Conservatories Limited is a 22-year-old private limited company registered in Pwllheli, company number 04960491, one of the UK's installation companies (insulation, lifts, shutters and similar). Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £27K (+33.5%) on the year before, to £109K.
- Net assets rose in 9 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £109K | £167K | £58K | 1 | |
| 31 Mar 2024 | £82K | £137K | £56K | 1 | |
| 31 Mar 2023 | £57K | £101K | £45K | 1 | |
| 31 Mar 2022 | £38K | £73K | £73K | £35K | 1 |
| 31 Mar 2021 | £30K | £63K | £64K | £35K | 1 |
| 31 Mar 2020 | £23K | £56K | £33K | 1 | |
| 31 Mar 2019 | £12K | £43K | £32K | 1 | |
| 31 Mar 2018 | £1,784 | £42K | £40K | 1 | |
| 31 Mar 2017 | -£470 | £23K | £24K | 1 | |
| 31 Mar 2016 | -£3,798 | £18K | £22K |
Where Penllyn Conservatories Limited is registered
The registered office is in Pwllheli (LL53), in the Gwynedd local authority area, Wales. Show LL53 5HH on a map.
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Also registered at this address
16 other companies use the same registered office as Penllyn Conservatories Limited.
- Abersoch Boat Works LimitedMachinery repair and installation
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- Dyffryn Heating LtdPlumbers and heating engineers
- E Thomas Plumbing and Heating Plymio A Gwresogi CyfPlumbers and heating engineers
- Gwynedd Windscreens LimitedMechanics and garages
- LJS Construction LimitedProperty developers
- Llnau Haze Cleaning LimitedCleaning companies
- Llyn Marine Services LimitedMachinery repair and installation
- M P Plumbing LimitedPlumbers and heating engineers
- Mela Energy LtdPlumbers and heating engineers
- Or Trefor LimitedCivil engineering
- Peninsula Security LtdElectricians
- Radix Shrewsbury LimitedLandscapers and gardeners
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What happens if Penllyn 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 04960491
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 November 2003 (22 years ago)
- Registered office
- 1 Thomas Buildings, New Street, Pwllheli, Gwynedd, LL53 5HH
- Nature of business
- Other construction installation (SIC 43290)
Glazing (SIC 43342) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 11 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 Pwllheli
Other active installation companies (insulation, lifts, shutters and similar) registered in Pwllheli.
- Cdy Ceilings & Partitions Limited2003
- Southdown Contractors Limited2003
- Prime Solutions (UK) Limited2003
- Hendesigns Limited2003
- G. W. Windows Limited2003
- Superior Kitchens Limited2003
- Assured Industrial Doors Limited2003
- Dee Fire Limited2003
All installation companies (insulation, lifts, shutters and similar) in Pwllheli · All trades in Pwllheli · Installers across the UK
Frequently asked questions
When are Penllyn Conservatories Limited's accounts due?
Penllyn Conservatories Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Penllyn Conservatories Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Penllyn Conservatories Limited still trading?
Penllyn 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 Penllyn Conservatories Limited do?
Penllyn Conservatories Limited is registered under Other construction installation (SIC 43290); Glazing (SIC 43342).
How old is Penllyn Conservatories Limited?
Penllyn Conservatories Limited was incorporated on 11 November 2003, 22 years ago.
What is the penalty if Penllyn 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 Penllyn 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.