- Companies
- Plumbers and heating engineers
- St Albans
- Idv Plumbing and Heating Ltd
Idv Plumbing and Heating Ltd
- Company number
- 11720030
- Incorporated
- 10 Dec 20187 years trading
- Registered office
- Watling Cottage London Road, Flamstead, St Albans, AL3 8HQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Idv Plumbing and Heating Ltd is a 7-year-old private limited company registered in St Albans, company number 11720030, one of 67 plumbing and heating companies in St Albans. Companies House shows its accounts as overdue: they were due on 30 September 2026.
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 down £12K (-13.9%) on the year before, to £76K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £80K against £117K owed within a year: 0.7 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 6 years, 2019 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2024 | £76K | £80K | £117K | 2 | |
| 31 Dec 2023 | £88K | £65K | £95K | 1 | |
| 31 Dec 2022 | £44K | £18K | £35K | 3 | |
| 31 Dec 2021 | £4,127 | £24K | £24K | 3 | |
| 31 Dec 2020 | £512 | £17K | £24K | 2 | |
| 31 Dec 2019 | £3,854 | £6,390 | £2,536 | 2 |
Where Idv Plumbing and Heating Ltd is registered
The registered office is in St Albans (AL3), in the Dacorum local authority area, East of England. Show AL3 8HQ on a map.
Other trade companies in AL3
- KS Facilities LtdCleaning companies
- Cob Flooring and Building LtdFloor and wall tilers
- Loban Joinery Solutions LimitedJoiners and carpenters
- Kee and Drew Construction LimitedBuilders
- Yavir Greenworks LimitedLandscapers and gardeners
- Iop Services LimitedCivil engineering
- Plumridge FM LtdProperty developers
- Ag Roofing Homes LimitedFinishing trades
What happens if Idv Plumbing and Heating Ltd files late
If the accounts reach Companies House today, the late filing penalty is £150 (£300 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2026 to 31 Oct 2026 | £150 |
| 1 to 3 months late | 1 Nov 2026 to 31 Dec 2026 | £375 |
| 3 to 6 months late | 1 Jan 2027 to 31 Mar 2027 | £750 |
| More than 6 months late | From 1 Apr 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2027 | £200 |
| 3 months late | 31 Mar 2027 | another £200 |
| 6 months late | 30 Jun 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2027 | 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
- 11720030
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 December 2018 (7 years ago)
- Registered office
- Watling Cottage London Road, Flamstead, St Albans, AL3 8HQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2024
- Last confirmation statement
- 9 December 2025
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 St Albans
Other active plumbing and heating companies registered in St Albans.
- J M Potts Ltd2018
- JM Plumbing Services Limited2015
- K.D.P Services Ltd2024
- L G Heating & Gas Limited2021
- Lake Plumbing & Heating Ltd2013
- Liquidair Ltd2009
- London Gas Certs Ltd2018
- M & M Gas Services Limited2008
All plumbing and heating companies in St Albans · All trades in St Albans · Plumbers and heating engineers across the UK
Frequently asked questions
When are Idv Plumbing and Heating Ltd's accounts due?
Idv Plumbing and Heating Ltd's accounts were due at Companies House on 30 September 2026 and the register shows them as overdue.
When is Idv Plumbing and Heating Ltd's CT600 due?
The CT600 for the period to 31 December 2025 is due at HMRC by 31 December 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2026.
Is Idv Plumbing and Heating Ltd still trading?
Idv Plumbing and Heating Ltd is listed as active on the Companies House register (checked 13 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 Idv Plumbing and Heating Ltd do?
Idv Plumbing and Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Idv Plumbing and Heating Ltd?
Idv Plumbing and Heating Ltd was incorporated on 10 December 2018, 7 years ago.
What is the penalty if Idv 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 Idv 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, rechecked 13 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.