- Companies
- Plumbers and heating engineers
- London
- Unblock Drainage Solution Limited
Unblock Drainage Solution Limited
- Company number
- 07269931
- Incorporated
- 1 Jun 201016 years trading
- Registered office
- 101A Mount Pleasant Lane, London, E5 9EW
- Nature of business
- Plumbing, heat and air-conditioning installation
Unblock Drainage Solution Limited is a 16-year-old private limited company registered in London, company number 07269931, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 26 March 2027, and the CT600 for the period to 26 June 2026 is due at HMRC on 26 June 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 £66K (-9.5%) on the year before, to £631K.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £515K against £188K owed within a year: 2.7 times cover.
- 5 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £631K | £18K | £515K | £188K | 5 |
| 30 Jun 2024 | £696K | £49K | £511K | £103K | 5 |
| 28 Jun 2023 | £661K | £576K | £188K | 5 | |
| 29 Jun 2022 | £586K | £525K | £189K | 5 | |
| 29 Jun 2021 | £514K | £713K | £159K | 7 | |
| 29 Jun 2020 | £419K | £537K | £121K | 6 | |
| 30 Jun 2019 | £315K | £402K | £88K | ||
| 30 Jun 2018 | £204K | £40K | £125K | ||
| 30 Jun 2017 | £78K | £90K | £103K | ||
| 30 Jun 2016 | £11K | £45K | £93K | £91K |
Where Unblock Drainage Solution Limited is registered
The registered office is in London (E5), in the Hackney local authority area, London. Show E5 9EW on a map.
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What happens if Unblock Drainage Solution 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 26 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 27 Mar 2027 to 26 Apr 2027 | £150 |
| 1 to 3 months late | 27 Apr 2027 to 26 Jun 2027 | £375 |
| 3 to 6 months late | 27 Jun 2027 to 26 Sep 2027 | £750 |
| More than 6 months late | From 27 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 27 Jun 2027 | £200 |
| 3 months late | 26 Sep 2027 | another £200 |
| 6 months late | 26 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 26 Jun 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
- 07269931
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 June 2010 (16 years ago)
- Registered office
- 101A Mount Pleasant Lane, London, E5 9EW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 26 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 23 November 2025
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- Unicat Ltd2014
- Unique Climate Ltd2014
- Unique Plumber Limited2018
- Unique Support Private Ltd2020
- Unique World Contracting Cleaning and Hospitality Services UK Ltd2024
- Unitek Plumbing and Heating Ltd2018
- Universal Airflow Ltd2025
- Universal Plumbing and Heating Engineers Limited2021
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Unblock Drainage Solution Limited's accounts due?
Unblock Drainage Solution Limited's next accounts are due at Companies House by 26 March 2027 (in 164 days), covering the period to 26 June 2026.
When is Unblock Drainage Solution Limited's CT600 due?
The CT600 for the period to 26 June 2026 is due at HMRC by 26 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 27 March 2027.
Is Unblock Drainage Solution Limited still trading?
Unblock Drainage Solution 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 Unblock Drainage Solution Limited do?
Unblock Drainage Solution Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Unblock Drainage Solution Limited?
Unblock Drainage Solution Limited was incorporated on 1 June 2010, 16 years ago.
What is the penalty if Unblock Drainage Solution 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 Unblock Drainage Solution 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.