- Companies
- Installers
- Slough
- Pro Union Ltd
Pro Union Ltd
- Company number
- 11600726
- Incorporated
- 2 Oct 20188 years trading
- Registered office
- 12 Salt Hill Mansions, Bath Road, Slough, SL1 3XN
- Nature of business
- Other construction installation; Other specialised construction activities n.e.c.; Freight transport by road
Pro Union Ltd is a 8-year-old private limited company registered in Slough, company number 11600726, one of 73 installation companies (insulation, lifts, shutters and similar) in Slough. 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 up £7,277 (+559.8%) on the year before, to £8,577.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £41K against £32K owed within a year: 1.3 times cover.
- 12 employees on average, up from 2 the year before.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £8,577 | £19K | £41K | £32K | 12 |
| 31 Oct 2024 | £1,300 | £18K | £22K | £20K | 2 |
| 31 Oct 2023 | -£1,528 | £12K | £11K | 2 | |
| 31 Oct 2022 | £2,057 | £752 | £11K | £5,002 | 2 |
| 31 Oct 2021 | £2,455 | £340 | £6,755 | £234 | 2 |
| 31 Oct 2020 | £3,793 | £827 | £11K | £2,231 | 2 |
| 31 Oct 2019 | £2,287 | £3,035 | £748 | 1 |
Where Pro Union Ltd is registered
The registered office is in Slough (SL1), in the Slough local authority area, South East. Show SL1 3XN on a map.
Other trade companies in SL1
- Yanky Construction LtdBuilders
- Westside Automotive LtdMotor traders
- Shadeworks LtdInstallers
- Yad Building Services LimitedBuilders
- Slough Vehicle Repair Centre LtdMechanics and garages
- Hadi Automotive LtdMotor traders
- Imperial Berkshire Motors LtdMotor traders
- MDN General LtdBuilders
Also registered at this address
1 other company uses the same registered office as Pro Union Ltd.
- TSM Transport LtdBuilders
What happens if Pro Union Ltd 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
- 11600726
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 October 2018 (8 years ago)
- Registered office
- 12 Salt Hill Mansions, Bath Road, Slough, SL1 3XN
- Nature of business
- Other construction installation (SIC 43290)
Other specialised construction activities n.e.c. (SIC 43999)
Freight transport by road (SIC 49410) - Year end
- 31 October (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 3 October 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 Slough
Other active installation companies (insulation, lifts, shutters and similar) registered in Slough.
- RS & Sons Limited2019
- Sandu Contractors Ltd2022
- Ses Installation Limited2026
- Shadeworks Ltd2026
- Siege Fire Systems Limited2013
- Simply Carpet Fitters Ltd2025
- SJF Imperium Construction & Engineering Limited2024
- Thames Valley Insulation Limited2016
All installation companies (insulation, lifts, shutters and similar) in Slough · All trades in Slough · Installers across the UK
Frequently asked questions
When are Pro Union Ltd's accounts due?
Pro Union Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Pro Union Ltd'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 Pro Union Ltd still trading?
Pro Union Ltd 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 Pro Union Ltd do?
Pro Union Ltd is registered under Other construction installation (SIC 43290); Other specialised construction activities n.e.c. (SIC 43999); Freight transport by road (SIC 49410).
How old is Pro Union Ltd?
Pro Union Ltd was incorporated on 2 October 2018, 8 years ago.
What is the penalty if Pro Union Ltd 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 Pro Union Ltd 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.