- Companies
- Plumbers and heating engineers
- South Ockendon
- Class1 Mechanical & Thermal Services Limited
Class1 Mechanical & Thermal Services Limited
- Company number
- 17214087
- Incorporated
- 12 May 2026
- Registered office
- 1 Torino Way, South Ockendon, RM15 5FT
- Nature of business
- Plumbing, heat and air-conditioning installation; Other specialised construction activities n.e.c.
Class1 Mechanical & Thermal Services Limited is a newly incorporated private limited company registered in South Ockendon, company number 17214087, one of 25 plumbing and heating companies in South Ockendon. Its next accounts are due at Companies House on 12 February 2028, and its first CT600 is due at HMRC on 11 May 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 Class1 Mechanical & Thermal Services Limited is registered
The registered office is in South Ockendon (RM15), in the Thurrock local authority area, East of England. Show RM15 5FT on a map.
Other trade companies in RM15
- Aee Development LtdBuilders
- PCS Construction Services LimitedInstallers
- Aashfa LimitedCleaning companies
- Carmel Ridge LimitedMachinery repair and installation
- Nova Workforce LimitedSpecialist contractors
- Rosevine Property Cleaning & Commercial Services LtdCleaning companies
- Ec Cladding LtdBuilders
- K'S Heritage International LtdSpecialist contractors
Also registered at this address
1 other company uses the same registered office as Class1 Mechanical & Thermal Services Limited.
- Acl Services LtdBuilders
What happens if Class1 Mechanical & Thermal Services Limited 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 12 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 13 Feb 2028 to 12 Mar 2028 | £150 |
| 1 to 3 months late | 13 Mar 2028 to 12 May 2028 | £375 |
| 3 to 6 months late | 13 May 2028 to 12 Aug 2028 | £750 |
| More than 6 months late | From 13 Aug 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 17214087
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 May 2026
- Registered office
- 1 Torino Way, South Ockendon, RM15 5FT
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 May (accounting reference date)
- Accounts type
- No accounts filed yet
- Previous names
- Class1 Mechanical&Terminal Service Limited (until 19 May 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 South Ockendon
Other active plumbing and heating companies registered in South Ockendon.
- Cooling Heat Pumps Limited2023
- Cornerstone Plumbing & Drainage Ltd2026
- DNC Gas Ltd2022
- Dsair Services Ltd2024
- Gas Fix Solutions Limited2019
- GNS Gas & Building Contractors Ltd2023
- Honest Clear Solutions Ltd2026
- James Plumbing and Heating Services Limited2019
All plumbing and heating companies in South Ockendon · All trades in South Ockendon · Plumbers and heating engineers across the UK
Frequently asked questions
When are Class1 Mechanical & Thermal Services Limited's accounts due?
Class1 Mechanical & Thermal Services Limited's next accounts are due at Companies House by 12 February 2028 (in 487 days), covering the period to 31 May 2027.
When is Class1 Mechanical & Thermal Services Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 11 May 2027, due by 11 May 2028, and one for the period to 31 May 2027, due by 31 May 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Class1 Mechanical & Thermal Services Limited still trading?
Class1 Mechanical & Thermal Services Limited 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 Class1 Mechanical & Thermal Services Limited do?
Class1 Mechanical & Thermal Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other specialised construction activities n.e.c. (SIC 43999).
How old is Class1 Mechanical & Thermal Services Limited?
Class1 Mechanical & Thermal Services Limited was incorporated on 12 May 2026, less than a year ago.
What is the penalty if Class1 Mechanical & Thermal Services Limited 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 Class1 Mechanical & Thermal Services Limited 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.