- Companies
- Specialist contractors
- Tredegar
- Basement Waterproofing Supplies Ltd
Basement Waterproofing Supplies Ltd
- Company number
- 17374853
- Incorporated
- 31 Jul 2026
- Registered office
- Unit 27 Tafarnaubach Industrial Estate, Tafarnaubach, Tredegar, NP22 3AA
- Nature of business
- Other specialised construction activities n.e.c.
Basement Waterproofing Supplies Ltd is a newly incorporated private limited company registered in Tredegar, company number 17374853, one of 13 specialist construction companies in Tredegar. Its next accounts are due at Companies House on 30 April 2028, and its first CT600 is due at HMRC on 30 July 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 Basement Waterproofing Supplies Ltd is registered
The registered office is in Tredegar (NP22), in the Blaenau Gwent local authority area, Wales. Show NP22 3AA on a map.
Other trade companies in NP22
- Apt Site Services LtdCleaning companies
- Acr Property Maintenance LtdPainters and decorators
- Bobsdrywall LtdFinishing trades
- Solar Smart LimitedElectricians
- Parade Standard LtdCleaning companies
- RB Style Glazing LtdGlaziers
- Harrico Capital Investments LtdProperty developers
- Climapro Air Conditioning LtdPlumbers and heating engineers
Also registered at this address
1 other company uses the same registered office as Basement Waterproofing Supplies Ltd.
- Atal CyfSpecialist contractors
What happens if Basement Waterproofing Supplies 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 30 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2028 to 31 May 2028 | £150 |
| 1 to 3 months late | 1 Jun 2028 to 31 Jul 2028 | £375 |
| 3 to 6 months late | 1 Aug 2028 to 31 Oct 2028 | £750 |
| More than 6 months late | From 1 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 17374853
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 July 2026
- Registered office
- Unit 27 Tafarnaubach Industrial Estate, Tafarnaubach, Tredegar, NP22 3AA
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
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 Tredegar
Other active specialist construction companies registered in Tredegar.
- BDNK Utilities Limited2026
- Beynon Utilities Limited2019
- Coolflow Airconditioning Limited2024
- Dunkerton Utilities Limited2011
- G Lewis Groundworks Limited2021
- J & B Utilities Limited2023
- K Dunkerton Utilities Limited2023
- Madola Energy Ltd2013
All specialist construction companies in Tredegar · All trades in Tredegar · Specialist contractors across the UK
Frequently asked questions
When are Basement Waterproofing Supplies Ltd's accounts due?
Basement Waterproofing Supplies Ltd's next accounts are due at Companies House by 30 April 2028 (in 565 days), covering the period to 31 July 2027.
When is Basement Waterproofing Supplies 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 30 July 2027, due by 30 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Basement Waterproofing Supplies Ltd still trading?
Basement Waterproofing Supplies 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 Basement Waterproofing Supplies Ltd do?
Basement Waterproofing Supplies Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Basement Waterproofing Supplies Ltd?
Basement Waterproofing Supplies Ltd was incorporated on 31 July 2026, less than a year ago.
What is the penalty if Basement Waterproofing Supplies 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 Basement Waterproofing Supplies 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.