- Companies
- Specialist contractors
- Dorchester
- Portex Portland Limited
Portex Portland Limited
- Company number
- 04332640
- Incorporated
- 3 Dec 200124 years trading
- Registered office
- Coombe Farm Winterborne, Steepleton, Dorchester, Dorset, DT2 9HT
- Nature of business
- Other specialised construction activities n.e.c.
Portex Portland Limited is a 24-year-old private limited company registered in Dorchester, company number 04332640, one of 40 specialist construction companies in Dorchester. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £17K (-77.6%) on the year before, to £4,860.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £50K against £64K owed within a year: 0.8 times cover.
- 5 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 |
|---|---|---|---|---|---|
| 31 Oct 2025 | £4,860 | £583 | £50K | £64K | 5 |
| 31 Oct 2024 | £22K | £16K | £55K | £50K | 5 |
| 31 Oct 2023 | £36K | £19K | £50K | £25K | 5 |
| 31 Oct 2022 | £41K | £41K | £73K | £26K | 5 |
| 31 Oct 2021 | £43K | £79K | £82K | £31K | 5 |
| 31 Oct 2020 | £38K | £71K | £73K | £41K | 5 |
| 31 Oct 2019 | £33K | £31K | £40K | £48K | 5 |
| 31 Oct 2018 | £34K | £31K | £48K | £56K | 5 |
| 31 Oct 2017 | £18K | £14K | £76K | £92K | 4 |
| 31 Oct 2016 | £11K | £21K | £21K | £38K | 4 |
Where Portex Portland Limited is registered
The registered office is in Dorchester (DT2), in the Dorset local authority area, South West. Show DT2 9HT on a map.
Other trade companies in DT2
- Cullifords Automotive LimitedMotor traders
- Stonehouse Building Contractors LtdBuilders
- SDL DÉCor LtdPainters and decorators
- Imperial Heritage Jewellers LtdRepair services
- Middletech Automotive LimitedMechanics and garages
- Handy Helen LtdPainters and decorators
- Goulds Construction & Design LimitedBuilders
- Iem Property Care LimitedCleaning companies
What happens if Portex Portland 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 04332640
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 December 2001 (24 years ago)
- Registered office
- Coombe Farm Winterborne, Steepleton, Dorchester, Dorset, DT2 9HT
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 3 December 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Dorchester
Other active specialist construction companies registered in Dorchester.
- Probuild Dorset Ltd2023
- Quarr Builders Limited2002
- R Knight Fencing & Groundworks Ltd2026
- Rob Oldridge Limited2004
- Ross Morrison Contract Management Limited2014
- Sonner Plant & Agricultural Contractors Limited1975
- Southern Medical Gases Limited2013
- Stag Domestic & Commercial Fencing Ltd2024
All specialist construction companies in Dorchester · All trades in Dorchester · Specialist contractors across the UK
Frequently asked questions
When are Portex Portland Limited's accounts due?
Portex Portland Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Portex Portland Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Portex Portland Limited still trading?
Portex Portland 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 Portex Portland Limited do?
Portex Portland Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Portex Portland Limited?
Portex Portland Limited was incorporated on 3 December 2001, 24 years ago.
What is the penalty if Portex Portland 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 Portex Portland 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.