- Companies
- Plumbers and heating engineers
- Leigh-on-Sea
- DMK Mechanical Engineering Limited
DMK Mechanical Engineering Limited
- Company number
- 14890928
- Incorporated
- 24 May 20233 years trading
- Registered office
- Kingsley House, 22-24 Elm Road, Leigh-on-Sea, Essex, SS9 1SN
- Nature of business
- Plumbing, heat and air-conditioning installation
DMK Mechanical Engineering Limited is a 3-year-old private limited company registered in Leigh-on-Sea, company number 14890928, one of 60 plumbing and heating companies in Leigh-on-Sea. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for DMK Mechanical Engineering LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £12K (+34.7%) on the year before, to £48K.
- Current assets of £55K against £25K owed within a year: 2.2 times cover.
- 1 employee on average, up from -1 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £48K | £55K | £25K | 1 | |
| 31 May 2024 | £36K | £23K | £10K | -1 |
Where DMK Mechanical Engineering Limited is registered
The registered office is in Leigh-on-Sea (SS9), in the Southend-on-Sea local authority area, East of England. Show SS9 1SN on a map.
Other trade companies in SS9
- Cheap Locksmith Essex LtdRepair services
- Alexander Hall Real Estate LtdProperty developers
- Britannia Roofing & Dampproofing LtdRoofers
- Elite Build & Co (Essex) LtdBuilders
- High Lift Scaffold LimitedScaffolders
- Hill's Plumbing, Heating & Gas LtdPlumbers and heating engineers
- MTS Piling LimitedSpecialist contractors
- Install & Transport LimitedMachinery repair and installation
Shared registered office
37 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 DMK Mechanical Engineering 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 14890928
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 May 2023 (3 years ago)
- Registered office
- Kingsley House, 22-24 Elm Road, Leigh-on-Sea, Essex, SS9 1SN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 13 May 2026
- Previous names
- DMK Air Conditioning Ltd (until 14 Apr 2024)
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 Leigh-on-Sea
Other active plumbing and heating companies registered in Leigh-on-Sea.
- E.P.D. Mechanical Services Limited2006
- Earth Sparks Plumbing Ltd2025
- Eastwood Gas Ltd2026
- Essex County Plumbing Limited2018
- Estuary Plumbing and Heating Ltd2018
- Evolve Heating - Essex Limited2026
- First Fix Gas Services Limited2018
- Fluent Services Limited2026
All plumbing and heating companies in Leigh-on-Sea · All trades in Leigh-on-Sea · Plumbers and heating engineers across the UK
Frequently asked questions
When are DMK Mechanical Engineering Limited's accounts due?
DMK Mechanical Engineering Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is DMK Mechanical Engineering Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is DMK Mechanical Engineering Limited still trading?
DMK Mechanical Engineering 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 DMK Mechanical Engineering Limited do?
DMK Mechanical Engineering Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is DMK Mechanical Engineering Limited?
DMK Mechanical Engineering Limited was incorporated on 24 May 2023, 3 years ago.
What is the penalty if DMK Mechanical Engineering 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 DMK Mechanical Engineering 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.