- Companies
- Installers
- Blackburn
- Basement Waterproofing Solutions Ltd
Basement Waterproofing Solutions Ltd
- Company number
- 11727167
- Incorporated
- 14 Dec 20187 years trading
- Registered office
- Mentor House, Ainsworth Street, Blackburn, BB1 6AY
- Nature of business
- Other construction installation
Basement Waterproofing Solutions Ltd is a 7-year-old private limited company registered in Blackburn, company number 11727167, one of 45 installation companies (insulation, lifts, shutters and similar) in Blackburn. Its next accounts are due at Companies House on 28 September 2027, and the CT600 for the period to 28 December 2026 is due at HMRC on 28 December 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 £7,863 (-11.7%) on the year before, to £59K.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £90K against £36K owed within a year: 2.5 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Dec 2025 | £59K | £19K | £90K | £36K | 0 |
| 31 Dec 2024 | £67K | £35K | £103K | £37K | 0 |
| 31 Dec 2023 | £13K | £6,711 | £6,711 | £34K | 4 |
| 31 Dec 2022 | £40K | £73K | £74K | £50K | 4 |
| 31 Dec 2021 | £26K | £97K | £108K | £86K | 2 |
| 31 Dec 2020 | £29K | £69K | £80K | £53K | 2 |
| 31 Dec 2019 | £4,217 | £240 | £4,565 | £2,502 | 2 |
Where Basement Waterproofing Solutions Ltd is registered
The registered office is in Blackburn (BB1), in the Blackburn with Darwen local authority area, North West. Show BB1 6AY on a map.
Other trade companies in BB1
- Home Electrical Services NW LtdElectricians
- NC Capital Holdings LtdProperty developers
- McKay Energy Solutions LtdBuilders
- S & A Auto Repairs LtdMotor traders
- E Builders LimitedBuilders
- Mat Tinker Refinishing LtdPainters and decorators
- Rapidel LtdBuilders
- Karange Developments LimitedProperty developers
Shared registered office
43 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Basement Waterproofing Solutions 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 28 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Sep 2027 to 28 Oct 2027 | £150 |
| 1 to 3 months late | 29 Oct 2027 to 28 Dec 2027 | £375 |
| 3 to 6 months late | 29 Dec 2027 to 28 Mar 2028 | £750 |
| More than 6 months late | From 29 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Dec 2027 | £200 |
| 3 months late | 28 Mar 2028 | another £200 |
| 6 months late | 28 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Dec 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
- 11727167
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 December 2018 (7 years ago)
- Registered office
- Mentor House, Ainsworth Street, Blackburn, BB1 6AY
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 28 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 13 December 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 Blackburn
Other active installation companies (insulation, lifts, shutters and similar) registered in Blackburn.
- Carters Facilities Ltd.2016
- CDG Security Systems Ltd2012
- Collinge & Co Construction Limited2020
- Complete Underfloor Heating Limited2022
- Drivesafe Security UK Ltd2026
- Eazyloft Ltd2026
- Four Tek Limited2020
- Get A Greener Home Ltd2024
All installation companies (insulation, lifts, shutters and similar) in Blackburn · All trades in Blackburn · Installers across the UK
Frequently asked questions
When are Basement Waterproofing Solutions Ltd's accounts due?
Basement Waterproofing Solutions Ltd's next accounts are due at Companies House by 28 September 2027 (in 350 days), covering the period to 28 December 2026.
When is Basement Waterproofing Solutions Ltd's CT600 due?
The CT600 for the period to 28 December 2026 is due at HMRC by 28 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 29 September 2027.
Is Basement Waterproofing Solutions Ltd still trading?
Basement Waterproofing Solutions 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 Solutions Ltd do?
Basement Waterproofing Solutions Ltd is registered under Other construction installation (SIC 43290).
How old is Basement Waterproofing Solutions Ltd?
Basement Waterproofing Solutions Ltd was incorporated on 14 December 2018, 7 years ago.
What is the penalty if Basement Waterproofing Solutions 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 Solutions 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.