- Companies
- Electricians
- London
- Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd
Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd
- Company number
- 12726441
- Incorporated
- 7 Jul 20206 years trading
- Registered office
- 40 Berkeley House, 14 Wellington Way, London, E3 4NG
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Retail sale via mail order houses or via Internet; Activities of other holding companies n.e.c.
Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd is a 6-year-old private limited company registered in London, company number 12726441, one of 3,448 electrical contractors in London. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £36K (+435.3%) on the year before, to £44K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £44K against £23K owed within a year: 1.9 times cover.
- 3 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 Jul 2025 | £44K | £44K | £23K | 3 | |
| 31 Jul 2024 | £8,249 | £11K | £14K | 3 | |
| 31 Jul 2023 | £90 | £2,589 | £2,499 | 3 | |
| 31 Jul 2022 | £5,958 | £7,972 | £2,014 | 1 | |
| 31 Jul 2021 | £3,799 | £4,888 | £1,089 | 1 |
Where Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd is registered
The registered office is in London (E3), in the Tower Hamlets local authority area, London. Show E3 4NG on a map.
Other trade companies in E3
- Spencer Solar Group LtdInstallers
- Mfa Cleaning Surfaces LtdCleaning companies
- Ha Plumbing LtdPlumbers and heating engineers
- East London Projects LtdFinishing trades
- Dockland Executive LtdMotor traders
- Roman London Refurbishment LtdSpecialist contractors
- Akin Traders LtdBuilders
- SHK08 LimitedCleaning companies
What happens if Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 12726441
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 July 2020 (6 years ago)
- Registered office
- 40 Berkeley House, 14 Wellington Way, London, E3 4NG
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Retail sale via mail order houses or via Internet (SIC 47910)
Activities of other holding companies n.e.c. (SIC 64209) - Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 4 March 2026
- Previous names
- Aza & Sons Services Ltd (until 16 Jan 2026)
London Syndicate Ltd (until 3 Oct 2022)
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 London
Other active electrical contractors registered in London.
- Azur Power Limited2022
- Azzurri Contractors Limited2026
- B & Y Electrical Limited2023
- B L L Associates Limited2003
- B Marshall Electrical Limited2015
- B.G Rigging Services Ltd2022
- B.I.L. Technical Services Limited2002
- B.L.K Electrical Services Ltd2023
All electrical contractors in London · All trades in London · Electricians across the UK
Frequently asked questions
When are Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd's accounts due?
Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd still trading?
Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London 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 Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd do?
Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Retail sale via mail order houses or via Internet (SIC 47910); Activities of other holding companies n.e.c. (SIC 64209).
How old is Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd?
Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London Ltd was incorporated on 7 July 2020, 6 years ago.
What is the penalty if Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London 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 Aza & Sons Services Domestic & Commercial Plumber, Gas Engineer & Ac Engineer in London 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.