- Companies
- Electricians
- Dorchester
- CMB Electrical Services Dorset Limited
CMB Electrical Services Dorset Limited
- Company number
- 12622346
- Incorporated
- 26 May 20206 years trading
- Registered office
- 41 Ackerman Road, Dorchester, DT1 1NZ
- Nature of business
- Electrical installation
CMB Electrical Services Dorset Limited is a 6-year-old private limited company registered in Dorchester, company number 12622346, one of 33 electrical contractors in Dorchester. 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.
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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 £5,164 (-906%) on the year before, to -£4,594.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £17K against £20K owed within a year: 0.9 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | -£4,594 | £12 | £17K | £20K | 2 |
| 31 May 2024 | £570 | £1,664 | £23K | £13K | 2 |
| 31 May 2023 | -£2,624 | £1,909 | £18K | £9,828 | 3 |
| 31 May 2022 | -£4,959 | £1,922 | £9,034 | £25K | 2 |
| 31 May 2021 | £1 | £1 |
Where CMB Electrical Services Dorset Limited is registered
The registered office is in Dorchester (DT1), in the Dorset local authority area, South West. Show DT1 1NZ on a map.
Other trade companies in DT1
- Wareham MOT LimitedMechanics and garages
- Coastal Crest Dorset Cleaning Company LimitedCleaning companies
- Hybrid Superstructures LtdBuilders
- Solo Construction & Development LimitedBuilders
- Guardian Home Improvements LimitedFinishing trades
- Dorset Cars LtdMotor traders
- Rebecca Scaffolding LtdScaffolders
- Fox Roofing & Leadworks LtdRoofers
What happens if CMB Electrical Services Dorset 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
- 12622346
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 May 2020 (6 years ago)
- Registered office
- 41 Ackerman Road, Dorchester, DT1 1NZ
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 25 May 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 Dorchester
Other active electrical contractors registered in Dorchester.
- Cooper & Cooper Electrical South Limited2019
- Dorset Renewables Ltd2023
- Eco Electrix Ltd2013
- G K D Controls Limited2003
- G R Edwardes Limited2002
- Gary Cheesman Limited2009
- Goodfellow Electrical Solutions Ltd2018
- Hambrook Electrical Ltd.2011
All electrical contractors in Dorchester · All trades in Dorchester · Electricians across the UK
Frequently asked questions
When are CMB Electrical Services Dorset Limited's accounts due?
CMB Electrical Services Dorset Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is CMB Electrical Services Dorset 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 CMB Electrical Services Dorset Limited still trading?
CMB Electrical Services Dorset 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 CMB Electrical Services Dorset Limited do?
CMB Electrical Services Dorset Limited is registered under Electrical installation (SIC 43210).
How old is CMB Electrical Services Dorset Limited?
CMB Electrical Services Dorset Limited was incorporated on 26 May 2020, 6 years ago.
What is the penalty if CMB Electrical Services Dorset 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 CMB Electrical Services Dorset 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.