- Companies
- Specialist contractors
- Iver
- Bldex-UK Limited
Bldex-UK Limited
- Company number
- 12574231
- Incorporated
- 27 Apr 20206 years trading
- Registered office
- 31 Hardings Row, Iver, SL0 0HJ
- Nature of business
- Other specialised construction activities n.e.c.
Bldex-UK Limited is a 6-year-old private limited company registered in Iver, company number 12574231, one of 7 specialist construction companies in Iver. 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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Where Bldex-UK Limited is registered
The registered office is in Iver (SL0), in the Buckinghamshire local authority area, South East. Show SL0 0HJ on a map.
Other trade companies in SL0
- G Turna Construction LimitedBuilders
- PSG Engineering Services LtdCivil engineering
- Drive on Demand LtdMotor traders
- Slick Autos LimitedMechanics and garages
- Aa Salvage Services LtdMotor traders
- Pana Construction LtdProperty developers
- Waste Rescue LimitedMechanics and garages
- Raja Builder Property Services LtdProperty developers
What happens if Bldex-UK 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
- 12574231
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 April 2020 (6 years ago)
- Registered office
- 31 Hardings Row, Iver, SL0 0HJ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 22 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 Iver
Other active specialist construction companies registered in Iver.
- Kintherm Limited2020
- London Timber Buildings Ltd2015
- SP73 Ltd2019
- We Manage Damp Ltd2025
- A Lester Ltd2021
- Astara Residential Solutions Ltd2026
All specialist construction companies in Iver · All trades in Iver · Specialist contractors across the UK
Frequently asked questions
When are Bldex-UK Limited's accounts due?
Bldex-UK Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Bldex-UK 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 Bldex-UK Limited still trading?
Bldex-UK 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 Bldex-UK Limited do?
Bldex-UK Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Bldex-UK Limited?
Bldex-UK Limited was incorporated on 27 April 2020, 6 years ago.
What is the penalty if Bldex-UK 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 Bldex-UK 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.