- Companies
- Plumbers and heating engineers
- London
- The Underfloor Heating Repair Company London Limited
The Underfloor Heating Repair Company London Limited
- Company number
- 15510970
- Incorporated
- 21 Feb 20242 years trading
- Registered office
- 215 - 221 Borough High Street, London, SE1 1JA
- Nature of business
- Plumbing, heat and air-conditioning installation
The Underfloor Heating Repair Company London Limited is a 2-year-old private limited company registered in London, company number 15510970, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for The Underfloor Heating Repair Company London LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Financial snapshot, 2025
From the balance sheet at 28 February 2025, as filed at Companies House.
Where The Underfloor Heating Repair Company London Limited is registered
The registered office is in London (SE1), in the Southwark local authority area, London. Show SE1 1JA on a map.
Other trade companies in SE1
- Complete Bathroom Renovations LtdPlumbers and heating engineers
- Vision Studio Property LimitedProperty developers
- Chaplin Centre 2 LimitedProperty developers
- Mahir Building Services LtdSpecialist contractors
- Southwarklambethservices LtdSpecialist contractors
- Green Lane Cobham LtdProperty developers
- Ig Renewables SPV 10 LtdProperty developers
- Tapenjointers LimitedPlasterers
What happens if The Underfloor Heating Repair Company London 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 15510970
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 February 2024 (2 years ago)
- Registered office
- 215 - 221 Borough High Street, London, SE1 1JA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 29 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 20 February 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 London
Other active plumbing and heating companies registered in London.
- Thehappyplumber Limited2025
- Theo Plumbing Ltd2024
- Therm-Fix Ltd2020
- Thermacool Facilities Services Ltd2014
- Thermacore Renewables Ltd2026
- Thermaflo Ltd2026
- Thermal Efficient Ltd2020
- Thermal Solutions Ltd2024
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are The Underfloor Heating Repair Company London Limited's accounts due?
The Underfloor Heating Repair Company London Limited's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is The Underfloor Heating Repair Company London Limited's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is The Underfloor Heating Repair Company London Limited still trading?
The Underfloor Heating Repair Company London 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 The Underfloor Heating Repair Company London Limited do?
The Underfloor Heating Repair Company London Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is The Underfloor Heating Repair Company London Limited?
The Underfloor Heating Repair Company London Limited was incorporated on 21 February 2024, 2 years ago.
What is the penalty if The Underfloor Heating Repair Company London 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 The Underfloor Heating Repair Company London 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.