- Companies
- Repair services
- Southall
- Mah Diamonds Jewellery Workshop Ltd
Mah Diamonds Jewellery Workshop Ltd
- Company number
- 10239314
- Incorporated
- 20 Jun 201610 years trading
- Registered office
- Unit A & B Mason House, 2D Northcote Avenue, Southall, UB1 2AX
- Nature of business
- Repair of watches, clocks and jewellery
Mah Diamonds Jewellery Workshop Ltd is a 10-year-old private limited company registered in Southall, company number 10239314, one of 9 repair companies (computers, appliances, furniture and similar) in Southall. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £638 (-3.9%) on the year before, to £16K.
- Net assets rose in 6 of 8 year-on-year comparisons on record.
- Current assets of £106K against £82K owed within a year: 1.3 times cover.
- 7 employees on average, up from 6 the year before.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £16K | £106K | £82K | 7 | |
| 30 Jun 2024 | £16K | £88K | £52K | 6 | |
| 30 Jun 2023 | £15K | £70K | £35K | 2 | |
| 30 Jun 2022 | £12K | £24K | £5,799 | 1 | |
| 30 Jun 2021 | £8,689 | £2,202 | £2,335 | 1 | |
| 30 Jun 2020 | £2,786 | £4,270 | £7,056 | 1 | |
| 30 Jun 2019 | £403 | ||||
| 30 Jun 2018 | £10 | ||||
| 30 Jun 2017 | £2,723 |
Where Mah Diamonds Jewellery Workshop Ltd is registered
The registered office is in Southall (UB1), in the Ealing local authority area, London. Show UB1 2AX on a map.
Other trade companies in UB1
- Kingsbury Roofing & Construction LtdRoofers
- T2Y LtdBuilders
- Driveworx LimitedMotor traders
- Raunak Design and Build LtdBuilders
- Phlo Plumbing & Heating LtdPlumbers and heating engineers
- Airpro Conditioning LimitedPlumbers and heating engineers
- Springfields Property LimitedProperty developers
- Sanndhu Construction UK LtdBuilders
What happens if Mah Diamonds Jewellery Workshop 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 10239314
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 June 2016 (10 years ago)
- Registered office
- Unit A & B Mason House, 2D Northcote Avenue, Southall, UB1 2AX
- Nature of business
- Repair of watches, clocks and jewellery (SIC 95250)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 21 December 2025
Filing notes for repair companies (computers, appliances, furniture and similar)
Repair companies are mostly small micro-entities with simple accounts: parts, tools and a workshop or van.
Similar companies in Southall
Other active repair companies (computers, appliances, furniture and similar) registered in Southall.
- Phone Repair & Vape Corner Ltd2025
- Raaz Traders Ltd2018
- Rathore&Sons Ltd2022
- SM Ifix Mobiles & Accessories Limited2020
- Techeye World Limited2018
- Withtek Ltd2022
- Black Diamond Furniture Ltd2026
- Ifixhub Ltd2025
All repair companies (computers, appliances, furniture and similar) in Southall · All trades in Southall · Repair services across the UK
Frequently asked questions
When are Mah Diamonds Jewellery Workshop Ltd's accounts due?
Mah Diamonds Jewellery Workshop Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Mah Diamonds Jewellery Workshop Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Mah Diamonds Jewellery Workshop Ltd still trading?
Mah Diamonds Jewellery Workshop 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 Mah Diamonds Jewellery Workshop Ltd do?
Mah Diamonds Jewellery Workshop Ltd is registered under Repair of watches, clocks and jewellery (SIC 95250).
How old is Mah Diamonds Jewellery Workshop Ltd?
Mah Diamonds Jewellery Workshop Ltd was incorporated on 20 June 2016, 10 years ago.
What is the penalty if Mah Diamonds Jewellery Workshop 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 Mah Diamonds Jewellery Workshop 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.