- Companies
- Plumbers and heating engineers
- Ruislip
- HSL (London) Ltd
HSL (London) Ltd
- Company number
- 08821853
- Incorporated
- 19 Dec 201312 years trading
- Registered office
- 105 Manor Way, Ruislip, Middlesex, HA4 8HW
- Nature of business
- Plumbing, heat and air-conditioning installation
HSL (London) Ltd is a 12-year-old private limited company registered in Ruislip, company number 08821853, one of 61 plumbing and heating companies in Ruislip. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 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 £11K (-48.3%) on the year before, to -£34K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £58K against £101K owed within a year: 0.6 times cover.
- 3 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 |
|---|---|---|---|---|---|
| 31 Dec 2025 | -£34K | £26 | £58K | £101K | 3 |
| 31 Dec 2024 | -£23K | £5,578 | £84K | £108K | 3 |
| 31 Dec 2023 | -£386 | £23K | £108K | £96K | 4 |
| 31 Dec 2022 | £2,530 | £64K | £110K | £85K | 4 |
| 31 Dec 2021 | £24K | £174K | £232K | £177K | 4 |
| 31 Dec 2020 | £13K | £81K | £148K | £96K | 4 |
| 31 Dec 2019 | £13K | £46K | £142K | £135K | 3 |
| 31 Dec 2018 | £31K | £68K | £150K | £127K | 3 |
| 31 Dec 2017 | £31K | £51K | £174K | £157K | 3 |
| 31 Dec 2016 | £63K | £150K | £220K | £176K | 3 |
Where HSL (London) Ltd is registered
The registered office is in Ruislip (HA4), in the Hillingdon local authority area, London. Show HA4 8HW on a map.
Other trade companies in HA4
- SSC London LtdGroundworks and demolition
- DCR Industriltdal LtdPainters and decorators
- Katardino Monten for General Contracting and Supplies LtdCivil engineering
- Apex Build & Move LtdBuilders
- Ridgeway Building Contracts LimitedProperty developers
- Azya Farah LtdBuilders
- Howdens Roofing & Guttering LimitedRoofers
- Vetro Glazing LimitedGlaziers
What happens if HSL (London) 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 08821853
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 19 December 2013 (12 years ago)
- Registered office
- 105 Manor Way, Ruislip, Middlesex, HA4 8HW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 19 December 2025
- Previous names
- HBMS (London) Ltd (until 20 Dec 2013)
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 Ruislip
Other active plumbing and heating companies registered in Ruislip.
- Igniteco Group Ltd2024
- Iwbs Plumbing & Heating Ltd2007
- J Mechanical Ltd2016
- J Morris & Sons Limited2011
- JC Plumbing Ltd2015
- JJM Plumbing Limited2023
- JS Mechanical Limited2018
- LCM Fires Limited2014
All plumbing and heating companies in Ruislip · All trades in Ruislip · Plumbers and heating engineers across the UK
Frequently asked questions
When are HSL (London) Ltd's accounts due?
HSL (London) Ltd's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is HSL (London) Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is HSL (London) Ltd still trading?
HSL (London) 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 HSL (London) Ltd do?
HSL (London) Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is HSL (London) Ltd?
HSL (London) Ltd was incorporated on 19 December 2013, 12 years ago.
What is the penalty if HSL (London) 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 HSL (London) 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.