- Companies
- Machinery repair and installation
- Northwood
- MDH Investments Limited
MDH Investments Limited
- Company number
- 04136913
- Incorporated
- 8 Jan 200125 years trading
- Registered office
- C/O Gittins Mulderrig, 6 High Street, Northwood, Middlesex, HA6 1BN
- Nature of business
- Repair of other equipment; Buying and selling of own real estate
MDH Investments Limited is a 25-year-old private limited company registered in Northwood, company number 04136913, one of 9 machinery repair and installation companies in Northwood. Its next accounts are due at Companies House on 31 December 2026, and its first CT600 is due at HMRC on 31 December 2026.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where MDH Investments Limited is registered
The registered office is in Northwood (HA6), in the Hillingdon local authority area, London. Show HA6 1BN on a map.
Other trade companies in HA6
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- Brill (Rural Property) LimitedProperty developers
- Roblar LimitedBuilders
- Compare My Cleaning Quotes LtdCleaning companies
- Cheshire Developments Group LtdProperty developers
- Elite London Cleaning LtdCleaning companies
- Melylar Render LtdBuilders
- Avidity Air Conditioning LtdPlumbers and heating engineers
What happens if MDH Investments 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 04136913
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 January 2001 (25 years ago)
- Registered office
- C/O Gittins Mulderrig, 6 High Street, Northwood, Middlesex, HA6 1BN
- Nature of business
- Repair of other equipment (SIC 33190)
Buying and selling of own real estate (SIC 68100) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 13 August 2026
- Charges (mortgages)
- 2 outstanding of 14 registered
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Northwood
Other active machinery repair and installation companies registered in Northwood.
- Silvio's Construction Ltd2024
- 21ST Century Electrical Ltd2014
- A A Electrical Services Limited2017
- Aquaswim Services Limited2007
- Elite Property Services and Security Ltd2026
- Gamaway Limited1992
- Kingfisher White Services Limited2008
- Luckey Services Ltd2020
All machinery repair and installation companies in Northwood · All trades in Northwood · Machinery repair and installation across the UK
Frequently asked questions
When are MDH Investments Limited's accounts due?
MDH Investments Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is MDH Investments 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 December 2025, due by 31 December 2026, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is MDH Investments Limited still trading?
MDH Investments 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 MDH Investments Limited do?
MDH Investments Limited is registered under Repair of other equipment (SIC 33190); Buying and selling of own real estate (SIC 68100).
How old is MDH Investments Limited?
MDH Investments Limited was incorporated on 8 January 2001, 25 years ago.
What is the penalty if MDH Investments 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 MDH Investments 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.