- Companies
- Plumbers and heating engineers
- Leighton Buzzard
- Coretherm Services Ltd
Coretherm Services Ltd
- Company number
- 17323252
- Incorporated
- 6 Jul 2026
- Registered office
- 9 Sandpiper Way, Leighton Buzzard, LU7 4SS
- Nature of business
- Plumbing, heat and air-conditioning installation
Coretherm Services Ltd is a newly incorporated private limited company registered in Leighton Buzzard, company number 17323252, one of 43 plumbing and heating companies in Leighton Buzzard. Its next accounts are due at Companies House on 6 April 2028, and its first CT600 is due at HMRC on 5 July 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 Coretherm Services Ltd is registered
The registered office is in Leighton Buzzard (LU7), in the Central Bedfordshire local authority area, East of England. Show LU7 4SS on a map.
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- S.E.C. Cladding LtdInstallers
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- Prime Seal Roofing & Guttering LtdRoofers
- Pristine Cleaning Solutions 83 LtdCleaning companies
- Marquez Aviation LimitedMachinery repair and installation
- Shazglobal LtdMechanics and garages
- L.T. Advanced Scaffolding LtdBuilders
What happens if Coretherm Services 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 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 7 Apr 2028 to 6 May 2028 | £150 |
| 1 to 3 months late | 7 May 2028 to 6 Jul 2028 | £375 |
| 3 to 6 months late | 7 Jul 2028 to 6 Oct 2028 | £750 |
| More than 6 months late | From 7 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 17323252
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 July 2026
- Registered office
- 9 Sandpiper Way, Leighton Buzzard, LU7 4SS
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (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 Leighton Buzzard
Other active plumbing and heating companies registered in Leighton Buzzard.
- D R Ventilation Limited2003
- D-Mec Services Limited2000
- Edj Industrial Services Ltd2020
- G.R. Heating & Plumbing Ltd2011
- Green Heat Renewable Solutions Limited2012
- GS Plumbing & Heating (Leighton Buzzard) Ltd2021
- GZB Mechanical Services Ltd2025
- Heatfix21 Ltd2015
All plumbing and heating companies in Leighton Buzzard · All trades in Leighton Buzzard · Plumbers and heating engineers across the UK
Frequently asked questions
When are Coretherm Services Ltd's accounts due?
Coretherm Services Ltd's next accounts are due at Companies House by 6 April 2028 (in 542 days), covering the period to 31 July 2027.
When is Coretherm Services 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 July 2027, due by 5 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Coretherm Services Ltd still trading?
Coretherm Services 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 Coretherm Services Ltd do?
Coretherm Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Coretherm Services Ltd?
Coretherm Services Ltd was incorporated on 6 July 2026, less than a year ago.
What is the penalty if Coretherm Services 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 Coretherm Services 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.