- Companies
- Finishing trades
- London
- HM Mechanical Services Limited
HM Mechanical Services Limited
- Company number
- 12287620
- Incorporated
- 29 Oct 20196 years trading
- Registered office
- A3 Broomsleigh Business Park, Worsley Bridge Road, London, SE26 5BN
- Nature of business
- Other building completion and finishing
HM Mechanical Services Limited is a 6-year-old private limited company registered in London, company number 12287620, one of 3,947 building finishing companies in London. Its next accounts are due at Companies House on 31 October 2026, and its first CT600 is due at HMRC on 31 October 2026.
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 £498 (-0.6%) on the year before, to £77K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £431K against £361K owed within a year: 1.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2020 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2024 | £77K | £29K | £431K | £361K | 1 |
| 31 Oct 2023 | £77K | £135 | £303K | £231K | 1 |
| 31 Oct 2022 | £67K | £37K | £493K | £418K | 1 |
| 31 Oct 2021 | £58K | £9,518 | £375K | £308K | 1 |
| 31 Oct 2020 | £58K | £46K | £330K | £252K | 1 |
Where HM Mechanical Services Limited is registered
The registered office is in London (SE26), in the Lewisham local authority area, London. Show SE26 5BN on a map.
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- Liberty Pest Control LimitedCleaning companies
Shared registered office
38 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 HM Mechanical Services 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 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 12287620
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 October 2019 (6 years ago)
- Registered office
- A3 Broomsleigh Business Park, Worsley Bridge Road, London, SE26 5BN
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2024
- Last confirmation statement
- 28 October 2025
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in London
Other active building finishing companies registered in London.
- Hma Building Services Limited2026
- HMR Building Services Ltd2026
- Hoang Gia Construction Ltd2023
- Hof Management Services Ltd2026
- Hollie Bowden Interiors Ltd2017
- Holloway Renovation Limited2015
- Holly Renovation & Construction Ltd2021
- Holmes & Co Building Contractors Ltd2021
All building finishing companies in London · All trades in London · Finishing trades across the UK
Frequently asked questions
When are HM Mechanical Services Limited's accounts due?
HM Mechanical Services Limited's next accounts are due at Companies House by 31 October 2026 (in 19 days), covering the period to 31 January 2026.
When is HM Mechanical Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 October 2025, due by 31 October 2026, and one for the period to 31 January 2026, due by 31 January 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is HM Mechanical Services Limited still trading?
HM Mechanical Services 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 HM Mechanical Services Limited do?
HM Mechanical Services Limited is registered under Other building completion and finishing (SIC 43390).
How old is HM Mechanical Services Limited?
HM Mechanical Services Limited was incorporated on 29 October 2019, 6 years ago.
What is the penalty if HM Mechanical Services 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 HM Mechanical Services 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.