- Companies
- Plumbers and heating engineers
- Oxford
- Aza Plumbing and Heating Ltd
Aza Plumbing and Heating Ltd
- Company number
- 16693685
- Incorporated
- 4 Sep 20251 year trading
- Registered office
- 31 Crowell Road, Oxford, OX4 3LL
- Nature of business
- Plumbing, heat and air-conditioning installation
Aza Plumbing and Heating Ltd is a 1-year-old private limited company registered in Oxford, company number 16693685, one of 62 plumbing and heating companies in Oxford. Its next accounts are due at Companies House on 4 June 2027, and its first CT600 is due at HMRC on 3 September 2027.
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 Aza Plumbing and Heating Ltd is registered
The registered office is in Oxford (OX4), in the Oxford local authority area, South East. Show OX4 3LL on a map.
Other trade companies in OX4
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- Madilee Clean LimitedCleaning companies
- BPR Drone Tech LtdRepair services
- SB Heating and Plumbing LtdPlumbers and heating engineers
- Nevada Air Conditioning & Refrigeration LtdMachinery repair and installation
- Whitehouse Maintenance LtdBuilders
- Vivid Cleaning Service LtdCleaning companies
- Oxford Move Out Specialists LtdCleaning companies
What happens if Aza 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 4 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 5 Jun 2027 to 4 Jul 2027 | £150 |
| 1 to 3 months late | 5 Jul 2027 to 4 Sep 2027 | £375 |
| 3 to 6 months late | 5 Sep 2027 to 4 Dec 2027 | £750 |
| More than 6 months late | From 5 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 16693685
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 September 2025 (1 year ago)
- Registered office
- 31 Crowell Road, Oxford, OX4 3LL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 3 September 2026
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 Oxford
Other active plumbing and heating companies registered in Oxford.
- Beauchamp & Butler Plumbing & Heating Ltd2006
- BHW Refrigeration & Air Conditioning Limited2004
- Carternicholas Ltd2024
- Cornerstone Phe Ltd2018
- D K S & Son Services Ltd2007
- Daglish Plumbing Limited2018
- E.L.R Engineering Ltd2026
- Ecoheat Innovation Ltd2025
All plumbing and heating companies in Oxford · All trades in Oxford · Plumbers and heating engineers across the UK
Frequently asked questions
When are Aza Plumbing and Heating Ltd's accounts due?
Aza Plumbing and Heating Ltd's next accounts are due at Companies House by 4 June 2027 (in 234 days), covering the period to 30 September 2026.
When is Aza 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 3 September 2026, due by 3 September 2027, and one for the period to 30 September 2026, due by 30 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Aza Plumbing and Heating Ltd still trading?
Aza 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 Aza Plumbing and Heating Ltd do?
Aza Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Aza Plumbing and Heating Ltd?
Aza Plumbing and Heating Ltd was incorporated on 4 September 2025, 1 year ago.
What is the penalty if Aza 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 Aza 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.