- Companies
- Finishing trades
- Barnet
- MDM Maintenance Ltd
MDM Maintenance Ltd
- Company number
- 12148727
- Incorporated
- 9 Aug 20197 years trading
- Registered office
- 4 Denewood, New Barnet, Barnet, EN5 1LX
- Nature of business
- Other building completion and finishing
MDM Maintenance Ltd is a 7-year-old private limited company registered in Barnet, company number 12148727, one of 69 building finishing companies in Barnet. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £42K (+958.4%) on the year before, to £37K.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £112K against £56K owed within a year: 2.0 times cover.
- 1 employee on average, up from 0 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £37K | £112K | £56K | 1 | |
| 31 Aug 2024 | -£4,359 | £9,383 | £89 | 0 | |
| 31 Aug 2023 | £3,942 | £11K | £0 | 0 | |
| 31 Aug 2022 | -£3,500 | £33 | £11K | £192 | 0 |
| 31 Aug 2021 | -£2,893 | £184 | £13K | £449 | 0 |
| 31 Aug 2020 | £394 | £44K | £47K | £31K | 1 |
Where MDM Maintenance Ltd is registered
The registered office is in Barnet (EN5), in the Barnet local authority area, London. Show EN5 1LX on a map.
Other trade companies in EN5
- Paysa Gas LtdPlumbers and heating engineers
- Greatway Business LtdInstallers
- Je Mobile Tyres LtdMechanics and garages
- Barnet Air LtdPlumbers and heating engineers
- Hutch Electrical LtdElectricians
- Nexflow Mechanical LtdSpecialist contractors
- A J Plant LtdMotor traders
- Plumbing365 LtdPlumbers and heating engineers
Also registered at this address
1 other company uses the same registered office as MDM Maintenance Ltd.
- MDM Heating & Plumbing LtdPlumbers and heating engineers
What happens if MDM Maintenance 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 12148727
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 August 2019 (7 years ago)
- Registered office
- 4 Denewood, New Barnet, Barnet, EN5 1LX
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 8 August 2026
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 Barnet
Other active building finishing companies registered in Barnet.
- Mega Building Services UK. Ltd2008
- Metropol London UK Ltd2020
- N-Build Limited2009
- NB Carpentry 2022 Ltd2022
- NVC Construction Ltd2017
- Omega Building Solutions Ltd2010
- Optima Builders Ltd2012
- Pa Building Solutions Ltd2025
All building finishing companies in Barnet · All trades in Barnet · Finishing trades across the UK
Frequently asked questions
When are MDM Maintenance Ltd's accounts due?
MDM Maintenance Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is MDM Maintenance Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is MDM Maintenance Ltd still trading?
MDM Maintenance 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 MDM Maintenance Ltd do?
MDM Maintenance Ltd is registered under Other building completion and finishing (SIC 43390).
How old is MDM Maintenance Ltd?
MDM Maintenance Ltd was incorporated on 9 August 2019, 7 years ago.
What is the penalty if MDM Maintenance 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 MDM Maintenance 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.