- Companies
- Plumbers and heating engineers
- London
- Mazi Plumbing and Heating Ltd
Mazi Plumbing and Heating Ltd
- Company number
- 17386604
- Incorporated
- 6 Aug 2026
- Registered office
- Unit 2, 493 Green Lanes, London, N13 4BS
- Nature of business
- Plumbing, heat and air-conditioning installation
Mazi Plumbing and Heating Ltd is a newly incorporated private limited company registered in London, company number 17386604, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 6 May 2028, and its first CT600 is due at HMRC on 5 August 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
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Where Mazi Plumbing and Heating Ltd is registered
The registered office is in London (N13), in the Enfield local authority area, London. Show N13 4BS on a map.
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- XP Plastering & Rendering LtdBuilders
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- Skilled Trades UK LtdPainters and decorators
- Danni Plumbing LtdPlumbers and heating engineers
Also registered at this address
1 other company uses the same registered office as Mazi Plumbing and Heating Ltd.
- Regent Construction & Investments LtdProperty developers
What happens if Mazi Plumbing and Heating 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 6 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 May 2028 to 6 Jun 2028 | £150 |
| 1 to 3 months late | 7 Jun 2028 to 6 Aug 2028 | £375 |
| 3 to 6 months late | 7 Aug 2028 to 6 Nov 2028 | £750 |
| More than 6 months late | From 7 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2028 | £200 |
| 3 months late | 30 Nov 2028 | another £200 |
| 6 months late | 28 Feb 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 17386604
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 August 2026
- Registered office
- Unit 2, 493 Green Lanes, London, N13 4BS
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in London
Other active plumbing and heating companies registered in London.
- MB Air Conditioning Service Ltd2025
- Mbi Plumbing and Heating Limited2018
- Mbi Plumbing Ltd2022
- MBN Plumbers Ltd2016
- MC Mechanical Cooling Ltd2025
- MC Plumbing & Heating Limited2013
- McAdams Gas and Heating Ltd2025
- McBeth Renewable Energy Solutions Ltd2026
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Mazi Plumbing and Heating Ltd's accounts due?
Mazi Plumbing and Heating Ltd's next accounts are due at Companies House by 6 May 2028 (in 571 days), covering the period to 31 August 2027.
When is Mazi Plumbing and Heating Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 5 August 2027, due by 5 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Mazi Plumbing and Heating Ltd still trading?
Mazi Plumbing and Heating 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 Mazi Plumbing and Heating Ltd do?
Mazi Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Mazi Plumbing and Heating Ltd?
Mazi Plumbing and Heating Ltd was incorporated on 6 August 2026, less than a year ago.
What is the penalty if Mazi Plumbing and Heating 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 Mazi Plumbing and Heating 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.