- Companies
- Plumbers and heating engineers
- Dartford
- JJB Heating & Cooling Ltd
JJB Heating & Cooling Ltd
- Company number
- 07968748
- Incorporated
- 28 Feb 201214 years trading
- Registered office
- 28 Crayford Road, Dartford, Kent, DA1 4AY
- Nature of business
- Plumbing, heat and air-conditioning installation
JJB Heating & Cooling Ltd is a 14-year-old private limited company registered in Dartford, company number 07968748, one of 121 plumbing and heating companies in Dartford. 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.
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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 £2,057 (-9%) on the year before, to £21K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £42K against £15K owed within a year: 2.8 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 |
|---|---|---|---|---|---|
| 28 Feb 2025 | £21K | £42K | £15K | 1 | |
| 29 Feb 2024 | £23K | £37K | £8,435 | 1 | |
| 28 Feb 2023 | £24K | £46K | £16K | 1 | |
| 28 Feb 2022 | £23K | £44K | £15K | 1 | |
| 28 Feb 2021 | £5,623 | £26K | £6,879 | 2 | |
| 29 Feb 2020 | £7,943 | £9,975 | £9,343 | 2 | |
| 28 Feb 2019 | £7,678 | £8,722 | £12K | £5,201 | |
| 28 Feb 2018 | £7,294 | £7,211 | £10K | £3,538 | |
| 28 Feb 2017 | £12K | £4,525 | £15K | £3,664 | |
| 29 Feb 2016 | £5,287 | £6,182 | £10K | £5,514 |
Where JJB Heating & Cooling Ltd is registered
The registered office is in Dartford (DA1), in the Bexley local authority area, London. Show DA1 4AY on a map.
Other trade companies in DA1
- Unit 6 Bespoke LtdSpecialist contractors
- Smartlifting LtdBuilders
- Degrees Bespoke Finishes LtdPlasterers
- A & A Electrical and Refrigeration LtdBuilders
- Elm Servicing LtdMachinery repair and installation
- WND Refrigeration LimitedPlumbers and heating engineers
- Moore Flooring and Sons LtdFloor and wall tilers
- Kinergy Systems LtdElectricians
What happens if JJB Heating & Cooling 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 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
- 07968748
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 February 2012 (14 years ago)
- Registered office
- 28 Crayford Road, Dartford, Kent, DA1 4AY
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 29 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 6 November 2025
- Previous names
- JJB Electrical & Heating Services Ltd (until 18 Sep 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 Dartford
Other active plumbing and heating companies registered in Dartford.
- JK Cooling Maintenance Ltd2026
- JNB Fire Limited2023
- KDPH Ltd2018
- Kent Boiler Repairs Ltd2022
- Kent Eco-Homes Limited2009
- Kepfam PH Ltd2026
- KJ Heating Ltd2026
- LCV Mechanical Solutions Ltd2025
All plumbing and heating companies in Dartford · All trades in Dartford · Plumbers and heating engineers across the UK
Frequently asked questions
When are JJB Heating & Cooling Ltd's accounts due?
JJB Heating & Cooling Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is JJB Heating & Cooling Ltd'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 JJB Heating & Cooling Ltd still trading?
JJB Heating & Cooling 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 JJB Heating & Cooling Ltd do?
JJB Heating & Cooling Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is JJB Heating & Cooling Ltd?
JJB Heating & Cooling Ltd was incorporated on 28 February 2012, 14 years ago.
What is the penalty if JJB Heating & Cooling 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 JJB Heating & Cooling 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.