- Companies
- Plumbers and heating engineers
- Manchester
- Summit Au Mechanical Ltd
Summit Au Mechanical Ltd
- Company number
- 16765009
- Incorporated
- 6 Oct 20251 year trading
- Registered office
- 16 Fairbourne Road, Denton, Manchester, Lancashire, M34 2FD
- Nature of business
- Plumbing, heat and air-conditioning installation
Summit Au Mechanical Ltd is a 1-year-old private limited company registered in Manchester, company number 16765009, one of 361 plumbing and heating companies in Manchester. Its next accounts are due at Companies House on 6 July 2027, and its first CT600 is due at HMRC on 5 October 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.
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Where Summit Au Mechanical Ltd is registered
The registered office is in Manchester (M34), in the Tameside local authority area, North West. Show M34 2FD on a map.
Other trade companies in M34
- Nicad Ac LimitedPlumbers and heating engineers
- Whippylicious LtdMotor traders
- Apexcabling LtdSpecialist contractors
- MCR Building Group LtdBuilders
- M60 Auto Parts LtdMotor traders
- Pat's Rendering LtdBuilders
- Gingertache LtdMachinery repair and installation
- Remapiq LtdMechanics and garages
What happens if Summit Au Mechanical 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 Jul 2027 to 6 Aug 2027 | £150 |
| 1 to 3 months late | 7 Aug 2027 to 6 Oct 2027 | £375 |
| 3 to 6 months late | 7 Oct 2027 to 6 Jan 2028 | £750 |
| More than 6 months late | From 7 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 16765009
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 October 2025 (1 year ago)
- Registered office
- 16 Fairbourne Road, Denton, Manchester, Lancashire, M34 2FD
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 15 October 2025
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 Manchester
Other active plumbing and heating companies registered in Manchester.
- Sundeo Contracting Limited2025
- Superior Air Solutions Ltd2012
- Sure Heat Plumbing & Heating Engineers Limited2009
- Swa Plumbing and Heating Limited2019
- Swaley Building Services Ltd2022
- Swiftheat Gas Services Ltd2010
- T&B Air Conditioning Services Ltd2024
- Tamesideheating Limited2023
All plumbing and heating companies in Manchester · All trades in Manchester · Plumbers and heating engineers across the UK
Frequently asked questions
When are Summit Au Mechanical Ltd's accounts due?
Summit Au Mechanical Ltd's next accounts are due at Companies House by 6 July 2027 (in 267 days), covering the period to 31 October 2026.
When is Summit Au Mechanical 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 October 2026, due by 5 October 2027, and one for the period to 31 October 2026, due by 31 October 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Summit Au Mechanical Ltd still trading?
Summit Au Mechanical 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 Summit Au Mechanical Ltd do?
Summit Au Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Summit Au Mechanical Ltd?
Summit Au Mechanical Ltd was incorporated on 6 October 2025, 1 year ago.
What is the penalty if Summit Au Mechanical 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 Summit Au Mechanical 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.