- Companies
- Plumbers and heating engineers
- London
- Idm Plumbing and Heating Ltd
Idm Plumbing and Heating Ltd
- Company number
- 08609077
- Incorporated
- 15 Jul 201313 years trading
- Registered office
- 71-75 Shelton Street, London, WC2H 9JQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Idm Plumbing and Heating Ltd is a 13-year-old private limited company registered in London, company number 08609077, one of 2,972 plumbing and heating companies in London. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £133 (+214.5%) on the year before, to £195.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £6,022 against £23K owed within a year: 0.3 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £195 | £6,022 | £23K | 1 | |
| 31 Jul 2024 | £62 | £1,683 | £20K | 1 | |
| 31 Jul 2023 | -£227 | £1,025 | £2,061 | £3,482 | 1 |
| 31 Jul 2022 | £24 | £2,331 | £4,874 | £6,044 | 1 |
| 31 Jul 2021 | £8 | £4,909 | £5,227 | £7,009 | 1 |
| 31 Jul 2020 | £238 | £1,171 | £1,171 | £3,490 | 1 |
| 31 Jul 2019 | £338 | £605 | £3,261 | £5,069 | 1 |
| 31 Jul 2018 | -£2,510 | -£2,022 | £2,427 | ||
| 31 Jul 2017 | £1,769 | £1,984 | £4,065 | ||
| 31 Jul 2016 | -£2,866 | £1,992 | £9,991 |
Where Idm Plumbing and Heating Ltd is registered
The registered office is in London (WC2H), in the Camden local authority area, London. Show WC2H 9JQ on a map.
Other trade companies in WC2H
- Superclean Agency LtdCleaning companies
- Sal Cleaning LtdCleaning companies
- Cityshine Facilities Services LtdCleaning companies
- Pureoceanscleaning LtdCleaning companies
- Muca Property Group LimitedProperty developers
- E.L.G.G LtdJoiners and carpenters
- First Ascentia Integrated LtdCleaning companies
- Fixing London LtdSpecialist contractors
Shared registered office
4,529 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Idm Plumbing and 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 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
- 08609077
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 July 2013 (13 years ago)
- Registered office
- 71-75 Shelton Street, London, WC2H 9JQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 15 July 2026
- Previous names
- Idm Trading Ltd (until 16 Feb 2017)
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.
- Igass Limited2018
- Ignira Energy Limited2025
- Ignite Contractors Ltd2025
- Ignite Energy Services Ltd2025
- Ignite Facilities Management Limited2020
- Ignite Group Ltd2020
- Ik Sabs Ltd2017
- Ilm Installations Limited2026
All plumbing and heating companies in London · All trades in London · Plumbers and heating engineers across the UK
Frequently asked questions
When are Idm Plumbing and Heating Ltd's accounts due?
Idm Plumbing and Heating Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Idm Plumbing and Heating Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Idm Plumbing and Heating Ltd still trading?
Idm Plumbing and 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 Idm Plumbing and Heating Ltd do?
Idm Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Idm Plumbing and Heating Ltd?
Idm Plumbing and Heating Ltd was incorporated on 15 July 2013, 13 years ago.
What is the penalty if Idm Plumbing and 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 Idm Plumbing and 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.