- Companies
- Electricians
- Dover
- CMMH Limited
CMMH Limited
- Company number
- 14965761
- Incorporated
- 27 Jun 20233 years trading
- Registered office
- 47 Castle Street, Dover, CT16 1PT
- Nature of business
- Electrical installation
CMMH Limited is a 3-year-old private limited company registered in Dover, company number 14965761, one of 21 electrical contractors in Dover. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £4,570 on the year before, to £4,571.
- Current assets of £4,225 against £4,684 owed within a year: 0.9 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2024 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £4,571 | £4,225 | £4,684 | 1 | |
| 31 Mar 2025 | £1 | ||||
| 30 Jun 2024 | £1 |
Where CMMH Limited is registered
The registered office is in Dover (CT16), in the Dover local authority area, South East. Show CT16 1PT on a map.
Other trade companies in CT16
- Mobile Tyre Fitting Rescue LtdMechanics and garages
- L S Motors Vram LtdMechanics and garages
- DR Alter Fashion & Tailoring LtdRepair services
- K&W Dry Lining Solutions LtdSpecialist contractors
- Four Seasons Spaces LtdProperty developers
- My Window Fitter (Iow) LtdJoiners and carpenters
- S.Norley Holdings LtdBuilders
- Biobuild Systems LtdProperty developers
Shared registered office
26 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 CMMH 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 14965761
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 June 2023 (3 years ago)
- Registered office
- 47 Castle Street, Dover, CT16 1PT
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 26 June 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Dover
Other active electrical contractors registered in Dover.
- Coastal Energy Kent Limited2015
- David Kelly Property Services Ltd2020
- David.R.Adams Electrical Services Limited2006
- E J Ditton & Co Limited2008
- E.W. Gee Limited2003
- Hipperson Limited1995
- JC & KC Engineering Ltd2019
- JG Electrical Contractors (Kent) Ltd2021
All electrical contractors in Dover · All trades in Dover · Electricians across the UK
Frequently asked questions
When are CMMH Limited's accounts due?
CMMH Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is CMMH Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is CMMH Limited still trading?
CMMH 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 CMMH Limited do?
CMMH Limited is registered under Electrical installation (SIC 43210).
How old is CMMH Limited?
CMMH Limited was incorporated on 27 June 2023, 3 years ago.
What is the penalty if CMMH 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 CMMH 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.