- Companies
- Plumbers and heating engineers
- Royston
- JNB Plumbing & Heating Limited
JNB Plumbing & Heating Limited
- Company number
- 11877814
- Incorporated
- 12 Mar 20197 years trading
- Registered office
- 68C High Street, Bassingbourn, Royston, Herts, SG8 5LF
- Nature of business
- Plumbing, heat and air-conditioning installation
JNB Plumbing & Heating Limited is a 7-year-old private limited company registered in Royston, company number 11877814, one of 24 plumbing and heating companies in Royston. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 JNB Plumbing & Heating 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.
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 £1,290 (+2.6%) on the year before, to £51K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £60K against £11K owed within a year: 5.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £51K | £60K | £11K | 1 | |
| 31 Mar 2025 | £49K | £58K | £11K | 1 | |
| 31 Mar 2024 | £62K | £74K | £15K | 1 | |
| 31 Mar 2023 | £52K | £60K | £12K | 1 | |
| 31 Mar 2022 | £43K | £49K | £11K | 1 | |
| 31 Mar 2021 | £40K | £42K | £9,202 | 1 | |
| 31 Mar 2020 | £44K | £47K | £12K | 1 |
Where JNB Plumbing & Heating Limited is registered
The registered office is in Royston (SG8), in the South Cambridgeshire local authority area, East of England. Show SG8 5LF on a map.
Other trade companies in SG8
- MPC Cars LtdMechanics and garages
- CB Composite LtdMachinery repair and installation
- Energy 0 (Zero) LimitedProperty developers
- Common Lane LtdProperty developers
- Florina Claudia Motorsport LtdMechanics and garages
- Honeycomp LtdMachinery repair and installation
- All-Good Aviation LtdMachinery repair and installation
- Acb LtdBuilders
Also registered at this address
24 other companies use the same registered office as JNB Plumbing & Heating Limited.
- Bradrose Materials Procurement LtdProperty developers
- Brownie-Points.Biz LimitedLandscapers and gardeners
- C Paxton Building Services LimitedSpecialist contractors
- Cherry Wood Construction LimitedInstallers
- Christopher Digby Homes LtdProperty developers
- Crazy 8 Customs LtdMechanics and garages
- Endcliffe Building and Renovations LimitedFinishing trades
- GD Roofing Services LtdRoofers
- GS4 Interiors LimitedFinishing trades
- J & A Norbury LimitedProperty developers
- K O Carpentry LimitedJoiners and carpenters
- L & H Carpentry LtdBuilders
- Libra Mechanical Services LimitedPlumbers and heating engineers
- Marvall Services LimitedLandscapers and gardeners
- Matt P James Carpentry Services LimitedJoiners and carpenters
- Nu Homes (Cambridge) LimitedBuilders
- PD Groundworks & Construction LimitedInstallers
- Phoenix Partnership (Herts) LimitedPlumbers and heating engineers
- PJM Carpentry & Construction LimitedInstallers
- Quinn Roofing LimitedRoofers
- Reynolds Landscaping Services LimitedLandscapers and gardeners
- Root to Crown LimitedLandscapers and gardeners
- Thorn Builders LimitedJoiners and carpenters
- White Dragon Access LimitedSpecialist contractors
What happens if JNB Plumbing & 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 11877814
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 March 2019 (7 years ago)
- Registered office
- 68C High Street, Bassingbourn, Royston, Herts, SG8 5LF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 11 March 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 Royston
Other active plumbing and heating companies registered in Royston.
- Libra Mechanical Services Limited2014
- Lodge Plumbing & Heating Services Ltd2016
- MK Plumbing and Drainage Ltd2016
- Parrmolloy Mechanical Ltd2025
- Pear Plumbing and Heating Limited2024
- PMC Heating and Plumbing Ltd2017
- Prospect Heating Services Limited2024
- Quinlivan Plumbing & Property Services Ltd2023
All plumbing and heating companies in Royston · All trades in Royston · Plumbers and heating engineers across the UK
Frequently asked questions
When are JNB Plumbing & Heating Limited's accounts due?
JNB Plumbing & Heating Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is JNB Plumbing & Heating Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is JNB Plumbing & Heating Limited still trading?
JNB Plumbing & 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 JNB Plumbing & Heating Limited do?
JNB Plumbing & Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is JNB Plumbing & Heating Limited?
JNB Plumbing & Heating Limited was incorporated on 12 March 2019, 7 years ago.
What is the penalty if JNB Plumbing & 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 JNB Plumbing & 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.