- Companies
- Plumbers and heating engineers
- St Austell
- Northshore Mechanical Ltd
Northshore Mechanical Ltd
- Company number
- 16605285
- Incorporated
- 24 Jul 20251 year trading
- Registered office
- 1 Corn Mill Apts, St Austell, PL25 5AH
- Nature of business
- Plumbing, heat and air-conditioning installation
Northshore Mechanical Ltd is a 1-year-old private limited company registered in St Austell, company number 16605285, one of 21 plumbing and heating companies in St Austell. Its next accounts are due at Companies House on 24 April 2027, and its first CT600 is due at HMRC on 23 July 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 Northshore Mechanical Ltd is registered
The registered office is in St Austell (PL25), in the Cornwall local authority area, South West. Show PL25 5AH on a map.
Other trade companies in PL25
- Platinum Window Care LimitedCleaning companies
- Aspire Land Property LimitedProperty developers
- Kernow Property Portfolio LtdProperty developers
- Bould Landscapes LimitedLandscapers and gardeners
- Rustic Homes LtdProperty developers
- Rustic Property LtdProperty developers
- Balustrade Solutions Cornwall LimitedInstallers
- R&L Developments Group LtdBuilders
What happens if Northshore 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 24 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Apr 2027 to 24 May 2027 | £150 |
| 1 to 3 months late | 25 May 2027 to 24 Jul 2027 | £375 |
| 3 to 6 months late | 25 Jul 2027 to 24 Oct 2027 | £750 |
| More than 6 months late | From 25 Oct 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
- 16605285
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 July 2025 (1 year ago)
- Registered office
- 1 Corn Mill Apts, St Austell, PL25 5AH
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 23 July 2026
- Previous names
- Oliver and Co Cornwall. Limited (until 15 Jan 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 St Austell
Other active plumbing and heating companies registered in St Austell.
- Proper Bathrooms Ltd2025
- R Kelly Plumbing and Heating Limited2014
- RLG Kitchens and Bathrooms Ltd2025
- Rob Button Plumbing & Heating Ltd2016
- Smith & Son Plumbing Ltd2025
- Sureflow Mechanical and Electrical Services Limited2008
- A.J.K. Gas Services Ltd2020
- Action Heating Cornwall Ltd2018
All plumbing and heating companies in St Austell · All trades in St Austell · Plumbers and heating engineers across the UK
Frequently asked questions
When are Northshore Mechanical Ltd's accounts due?
Northshore Mechanical Ltd's next accounts are due at Companies House by 24 April 2027 (in 193 days), covering the period to 31 July 2026.
When is Northshore 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 23 July 2026, due by 23 July 2027, and one for the period to 31 July 2026, due by 31 July 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Northshore Mechanical Ltd still trading?
Northshore 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 Northshore Mechanical Ltd do?
Northshore Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Northshore Mechanical Ltd?
Northshore Mechanical Ltd was incorporated on 24 July 2025, 1 year ago.
What is the penalty if Northshore 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 Northshore 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.