- Company number
- 17439256
- Incorporated
- 4 Sep 2026
- Registered office
- 100 Berkshire Place Wharfedale Road, Winnersh, Wokingham, RG41 5RD
- Nature of business
- Construction of domestic buildings
Ionex Built Ltd is a newly incorporated private limited company registered in Wokingham, company number 17439256, one of 75 building contractors in Wokingham. Its next accounts are due at Companies House on 4 June 2028, and its first CT600 is due at HMRC on 3 September 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Ionex Built Ltd is registered
The registered office is in Wokingham (RG41), in the Wokingham local authority area, South East. Show RG41 5RD on a map.
Other trade companies in RG41
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- Irfa LtdMechanics and garages
- Brit Brush Interiors LimitedPainters and decorators
- Apex Damp Solutions LtdPlasterers
- Aliseni Construction LtdBuilders
- Loddon Valley Roofing LtdRoofers
- Blue Whale Property Maintenance LtdFloor and wall tilers
- Kytt Solutions LtdProperty developers
Also registered at this address
19 other companies use the same registered office as Ionex Built Ltd.
- A1 Premium Constructions LtdBuilders
- Ab Electrics (Berkshire) LtdElectricians
- Advanced Design Build and Management LtdProperty developers
- Anton Shutters LtdInstallers
- Burghfield Mobile Tyres LtdMechanics and garages
- Dma Property Maintenance LtdBuilders
- Freddie's Auto's LtdMechanics and garages
- Kennedy Roofing and Building LimitedBuilders
- Ki Electrical and Maintenance LtdElectricians
- Left Right Motors LtdMechanics and garages
- Quality Roofers and Decorators LtdSpecialist contractors
- Reading Roofing LtdBuilders
- Redline Refined LtdMotor traders
- Sataman Developments 6 LimitedProperty developers
- Sataman Developments 7 LimitedProperty developers
- Smiths Berkshire Services LtdMechanics and garages
- Swanley Real Estate LimitedProperty developers
- TGG Water Services LtdCivil engineering
- TMR Roofline LimitedBuilders
What happens if Ionex Built 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 4 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 5 Jun 2028 to 4 Jul 2028 | £150 |
| 1 to 3 months late | 5 Jul 2028 to 4 Sep 2028 | £375 |
| 3 to 6 months late | 5 Sep 2028 to 4 Dec 2028 | £750 |
| More than 6 months late | From 5 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2029 | 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
- 17439256
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 September 2026
- Registered office
- 100 Berkshire Place Wharfedale Road, Winnersh, Wokingham, RG41 5RD
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Wokingham
Other active building contractors registered in Wokingham.
- Iwd Renovations Ltd2025
- JC Roofing and Property Services Ltd2025
- JJB Building Foundation Ltd2016
- K.B.& Sons Limited1972
- Kamac Limited2002
- Kennedy Roofing and Building Limited2024
- Kerry Builders GB Limited2006
- KP Construction Ltd2021
All building contractors in Wokingham · All trades in Wokingham · Builders across the UK
Frequently asked questions
When are Ionex Built Ltd's accounts due?
Ionex Built Ltd's next accounts are due at Companies House by 4 June 2028 (in 601 days), covering the period to 30 September 2027.
When is Ionex Built Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 3 September 2027, due by 3 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ionex Built Ltd still trading?
Ionex Built 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 Ionex Built Ltd do?
Ionex Built Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Ionex Built Ltd?
Ionex Built Ltd was incorporated on 4 September 2026, less than a year ago.
What is the penalty if Ionex Built 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 Ionex Built 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.