- Companies
- Plumbers and heating engineers
- Watford
- HSM Services Ltd
HSM Services Ltd
- Company number
- 14004580
- Incorporated
- 27 Mar 20224 years trading
- Registered office
- 29 the Courtway, Watford, WD19 5DP
- Nature of business
- Plumbing, heat and air-conditioning installation
HSM Services Ltd is a 4-year-old private limited company registered in Watford, company number 14004580, one of 124 plumbing and heating companies in Watford. Its next accounts are due at Companies House on 29 December 2026, and the CT600 for the period to 29 March 2026 is due at HMRC on 29 March 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 up £47K (+755.8%) on the year before, to £53K.
- Current assets of £112K against £66K owed within a year: 1.7 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £53K | £112K | £66K | 1 | |
| 31 Mar 2024 | £6,169 | £32K | £38K | 1 | |
| 31 Mar 2023 | £0 | £12K | £25K | 1 |
Where HSM Services Ltd is registered
The registered office is in Watford (WD19), in the Three Rivers local authority area, East of England. Show WD19 5DP on a map.
Other trade companies in WD19
- DTVM Security Solutions LtdElectricians
- Scenic Plasterwork’S LtdPlasterers
- Terranova Gardens LtdLandscapers and gardeners
- Synclyst LtdCleaning companies
- Hcdbl Group LtdProperty developers
- Primecore Contracts LimitedBuilders
- Kenworx Plumbing & Heating LtdPlumbers and heating engineers
- Adrclim LimitedBuilders
What happens if HSM Services 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 29 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 30 Dec 2026 to 29 Jan 2027 | £150 |
| 1 to 3 months late | 30 Jan 2027 to 29 Mar 2027 | £375 |
| 3 to 6 months late | 30 Mar 2027 to 29 Jun 2027 | £750 |
| More than 6 months late | From 30 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 30 Mar 2027 | £200 |
| 3 months late | 29 Jun 2027 | another £200 |
| 6 months late | 29 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 29 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
- 14004580
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 March 2022 (4 years ago)
- Registered office
- 29 the Courtway, Watford, WD19 5DP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 29 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 11 April 2026
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 Watford
Other active plumbing and heating companies registered in Watford.
- J C Harrow Limited2021
- J. Kendal Gas, Plumbing, and Heating Ltd2019
- Kempair Limited2003
- Kenworx Plumbing & Heating Ltd2026
- Kingswood Heating Limited2017
- Landyk Refri Ltd2026
- LDN Plumbing and Heating Services Ltd2023
- Leo Gas Inspection Limited2016
All plumbing and heating companies in Watford · All trades in Watford · Plumbers and heating engineers across the UK
Frequently asked questions
When are HSM Services Ltd's accounts due?
HSM Services Ltd's next accounts are due at Companies House by 29 December 2026 (in 77 days), covering the period to 29 March 2026.
When is HSM Services Ltd's CT600 due?
The CT600 for the period to 29 March 2026 is due at HMRC by 29 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 30 December 2026.
Is HSM Services Ltd still trading?
HSM Services 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 HSM Services Ltd do?
HSM Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is HSM Services Ltd?
HSM Services Ltd was incorporated on 27 March 2022, 4 years ago.
What is the penalty if HSM Services 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 HSM Services 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.