- Companies
- Plumbers and heating engineers
- Watford
- DJML Heating Limited
DJML Heating Limited
- Company number
- 10388230
- Incorporated
- 21 Sep 201610 years trading
- Registered office
- 39 the Metro Centre, Tolpits Lane, Watford, Hertfordshire, WD18 9SB
- Nature of business
- Plumbing, heat and air-conditioning installation
DJML Heating Limited is a 10-year-old private limited company registered in Watford, company number 10388230, one of 124 plumbing and heating companies in Watford. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £5,134 (+188.1%) on the year before, to £7,864.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- Current assets of £3,836 against £7,889 owed within a year: 0.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £7,864 | £3,836 | £7,889 | 2 | |
| 30 Sep 2024 | £2,730 | £9,758 | £7,028 | 2 | |
| 30 Sep 2023 | £1,861 | £12K | £11K | 2 | |
| 30 Sep 2022 | £2,164 | £12K | £10K | 2 | |
| 30 Sep 2021 | £12K | £27K | £16K | 2 | |
| 30 Sep 2020 | £14K | £24K | £11K | 2 | |
| 30 Sep 2019 | £1,251 | £8,268 | £9,017 | 2 | |
| 30 Sep 2018 | £2,058 | £14K | £12K | ||
| 30 Sep 2017 | £3,124 | £13K | £9,511 |
Where DJML Heating Limited is registered
The registered office is in Watford (WD18), in the Three Rivers local authority area, East of England. Show WD18 9SB on a map.
Other trade companies in WD18
- Aston Contractors LimitedInstallers
- Basky 613 LtdProperty developers
- M&E Motors LtdMotor traders
- Jeservicesgroup LtdBuilders
- RCK’S Car Wash Ltd LtdMechanics and garages
- S Buildx LtdBuilders
- CDP Mechanical Contracting LtdPlumbers and heating engineers
- Lane Commercial LtdCivil engineering
Also registered at this address
16 other companies use the same registered office as DJML Heating Limited.
- A.R.Beveridge & Sons LtdPlumbers and heating engineers
- Ads Independent Living Solutions LimitedFacilities management
- Ao'mahony LimitedGroundworks and demolition
- Atherstone Air Conditioning LimitedPlumbers and heating engineers
- Autonomy Workspace LtdFinishing trades
- Baker Plumbing and Heating LtdPlumbers and heating engineers
- Craig McGibbon LtdLandscapers and gardeners
- Darvell's Joinery LimitedJoiners and carpenters
- GN Heating LtdPlumbers and heating engineers
- Hulme Project Management LimitedBuilders
- M P Flooring LimitedFloor and wall tilers
- RB Building and Restoration LtdFinishing trades
- S.C.G. Construction LimitedInstallers
- Tower Gas LtdPlumbers and heating engineers
- UK Prop-Fix LimitedFinishing trades
- Uptown Interiors LtdPainters and decorators
What happens if DJML Heating 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 10388230
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 September 2016 (10 years ago)
- Registered office
- 39 the Metro Centre, Tolpits Lane, Watford, Hertfordshire, WD18 9SB
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 25 September 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 Watford
Other active plumbing and heating companies registered in Watford.
- DM Heating & Plumbing Limited2016
- DPH Mechanical Ltd2016
- E&E Heating and Plumbing Ltd2020
- Ek Hydro-Tech Pro Limited2022
- Em Plumbing and Heat Ltd2024
- Eva Plumbing Ltd2022
- Everstead Building Services Ltd2026
- Excel Maintenance Services Ltd2016
All plumbing and heating companies in Watford · All trades in Watford · Plumbers and heating engineers across the UK
Frequently asked questions
When are DJML Heating Limited's accounts due?
DJML Heating Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is DJML Heating Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is DJML Heating Limited still trading?
DJML Heating 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 DJML Heating Limited do?
DJML Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is DJML Heating Limited?
DJML Heating Limited was incorporated on 21 September 2016, 10 years ago.
What is the penalty if DJML Heating 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 DJML Heating 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.