- Companies
- Electricians
- Birkenhead
- Atherton and Partners Limited
Atherton and Partners Limited
- Company number
- 01579933
- Incorporated
- 13 Aug 198145 years trading
- Registered office
- Grange House 19-21 Grange Mount, Birkenhead, Wirral, CH43 4XN
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Other construction installation
Atherton and Partners Limited is a 45-year-old private limited company registered in Birkenhead, company number 01579933, one of 36 electrical contractors in Birkenhead. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £56K (+4.4%) on the year before, to £1.3M.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £6.7M against £5.7M owed within a year: 1.2 times cover.
- 50 employees on average, up from 46 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £1.3M | £564K | £6.7M | £5.7M | 50 |
| 30 Nov 2024 | £1.3M | £864K | £4.8M | £3.8M | 46 |
| 30 Nov 2023 | £1.2M | £1.3M | £4.9M | £3.8M | 37 |
| 30 Nov 2022 | £1.1M | £573K | £3.1M | £2M | 30 |
| 30 Nov 2021 | £850K | £243K | £2.3M | £1.5M | 23 |
| 30 Nov 2020 | £693K | £394K | £1.4M | £950K | 24 |
| 30 Nov 2019 | £689K | £256K | £1.3M | £812K | 27 |
| 30 Nov 2018 | £684K | £249K | £1.5M | £1M | 28 |
| 30 Nov 2017 | £730K | £97 | £1.7M | £1.1M | 31 |
| 30 Nov 2016 | £758K | £316K | £1.9M | £1.4M |
Where Atherton and Partners Limited is registered
The registered office is in Birkenhead (CH43), in the Wirral local authority area, North West. Show CH43 4XN on a map.
Other trade companies in CH43
- Peninsula Housekeeping LimitedCleaning companies
- Munro Services (NW) LtdSpecialist contractors
- Bathrooms by Iain & Co LimitedPlumbers and heating engineers
- On the Grab LtdInstallers
- RBD Solutions LtdMachinery repair and installation
- 16A Construction LimitedBuilders
- BPD Property Solutions LtdProperty developers
- Brooktherm UK LimitedMachinery repair and installation
What happens if Atherton and Partners 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 01579933
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 August 1981 (45 years ago)
- Registered office
- Grange House 19-21 Grange Mount, Birkenhead, Wirral, CH43 4XN
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290) - Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 14 March 2026
- Charges (mortgages)
- 2 outstanding of 11 registered
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 Birkenhead
Other active electrical contractors registered in Birkenhead.
- Atlas Ly Ltd2025
- Barry J Fogg Electrical Services Ltd2007
- Cross and Co Electrical NW Limited2024
- Current Care Electrical Services Limited2026
- Current2U Ltd2024
- Digital Black Security Limited2014
- Dowsett Electrical Limited2011
- DWT Electrical Limited2014
All electrical contractors in Birkenhead · All trades in Birkenhead · Electricians across the UK
Frequently asked questions
When are Atherton and Partners Limited's accounts due?
Atherton and Partners Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is Atherton and Partners Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Atherton and Partners Limited still trading?
Atherton and Partners 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 Atherton and Partners Limited do?
Atherton and Partners Limited is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290).
How old is Atherton and Partners Limited?
Atherton and Partners Limited was incorporated on 13 August 1981, 45 years ago.
What is the penalty if Atherton and Partners 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 Atherton and Partners 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.