- Companies
- Plumbers and heating engineers
- Harleston
- Thermotech Plumbing & Heating Ltd
Thermotech Plumbing & Heating Ltd
- Company number
- 17193927
- Incorporated
- 1 May 2026
- Registered office
- 4A Church Street, Harleston, IP20 9BB
- Nature of business
- Plumbing, heat and air-conditioning installation
Thermotech Plumbing & Heating Ltd is a newly incorporated private limited company registered in Harleston, company number 17193927, one of 5 plumbing and heating companies in Harleston. Its next accounts are due at Companies House on 1 February 2028, and its first CT600 is due at HMRC on 30 April 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 Thermotech Plumbing & Heating Ltd is registered
The registered office is in Harleston (IP20), in the South Norfolk local authority area, East of England. Show IP20 9BB on a map.
Other trade companies in IP20
- Andrew P Read LtdGroundworks and demolition
- Adapt & Construction LtdSpecialist contractors
- Prem E Air LtdPlumbers and heating engineers
- Sash Radiant Shine LtdCleaning companies
- DGSH Developments LtdFinishing trades
- GRB Energy LtdElectricians
- Vincent's Motor Works LtdMechanics and garages
- Hockham & Jones Garden Services LtdLandscapers and gardeners
Also registered at this address
8 other companies use the same registered office as Thermotech Plumbing & Heating Ltd.
- Cooke's Maintenance LtdLandscapers and gardeners
- DGSH Developments LtdFinishing trades
- GRB Energy LtdElectricians
- Hockham & Jones Garden Services LtdLandscapers and gardeners
- Hunt Heating and Plumbing LtdPlumbers and heating engineers
- Pochin Electrical Services LtdElectricians
- Thegroundworksco. LtdBuilders
- Waveney Construction Landscapes Civils LtdSpecialist contractors
What happens if Thermotech Plumbing & 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 1 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 2 Feb 2028 to 1 Mar 2028 | £150 |
| 1 to 3 months late | 2 Mar 2028 to 1 May 2028 | £375 |
| 3 to 6 months late | 2 May 2028 to 1 Aug 2028 | £750 |
| More than 6 months late | From 2 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
- 17193927
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 May 2026
- Registered office
- 4A Church Street, Harleston, IP20 9BB
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (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 Harleston
Other active plumbing and heating companies registered in Harleston.
- Hunt Heating and Plumbing Ltd2024
- Paul Shelley Plumbing & Heating Ltd2012
- Prem E Air Ltd2025
- Stockwell Plumbing & Heating Limited2023
All plumbing and heating companies in Harleston · All trades in Harleston · Plumbers and heating engineers across the UK
Frequently asked questions
When are Thermotech Plumbing & Heating Ltd's accounts due?
Thermotech Plumbing & Heating Ltd's next accounts are due at Companies House by 1 February 2028 (in 476 days), covering the period to 31 May 2027.
When is Thermotech Plumbing & 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 30 April 2027, due by 30 April 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 Thermotech Plumbing & Heating Ltd still trading?
Thermotech Plumbing & 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 Thermotech Plumbing & Heating Ltd do?
Thermotech Plumbing & Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Thermotech Plumbing & Heating Ltd?
Thermotech Plumbing & Heating Ltd was incorporated on 1 May 2026, less than a year ago.
What is the penalty if Thermotech Plumbing & 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 Thermotech Plumbing & 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.