- Companies
- Plumbers and heating engineers
- Alresford
- JNM Plumbing Limited
JNM Plumbing Limited
- Company number
- 12851837
- Incorporated
- 2 Sep 20206 years trading
- Registered office
- The Clock House Western Court, Bishop's Sutton, Alresford, SO24 0AA
- Nature of business
- Plumbing, heat and air-conditioning installation
JNM Plumbing Limited is a 6-year-old private limited company registered in Alresford, company number 12851837, one of the UK's plumbing and heating companies. 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 down £5,224 (-26.1%) on the year before, to £15K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £22K against £17K owed within a year: 1.3 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £15K | £22K | £17K | 2 | |
| 30 Sep 2024 | £20K | £12K | £4,802 | 2 | |
| 30 Sep 2023 | £8,699 | £15K | £21K | 2 | |
| 30 Sep 2022 | £6,554 | £9,469 | £16K | 1 | |
| 30 Sep 2021 | £3,265 | £6,973 | £20K | 1 |
Where JNM Plumbing Limited is registered
The registered office is in Alresford (SO24), in the Winchester local authority area, South East. Show SO24 0AA on a map.
Other trade companies in SO24
- Landlec Electrical Services LimitedElectricians
- DP Hampshire Groundworks LtdGroundworks and demolition
- Evergreen Hampshire LtdLandscapers and gardeners
- Meadow View Developments LtdProperty developers
- Aps Paint Holdings LimitedMotor traders
- DJS Auto Services LtdMechanics and garages
- WL Enterprises LtdCleaning companies
- Pureair Climate Control LimitedPlumbers and heating engineers
Also registered at this address
11 other companies use the same registered office as JNM Plumbing Limited.
- Acc (UK) LimitedMechanics and garages
- Bennett's Home Shine LtdCleaning companies
- Charlton Construction LimitedBuilders
- GP (Hants) LimitedCleaning companies
- GRF Builders LimitedBuilders
- Hilley Developments LimitedProperty developers
- Landlec Electrical Services LimitedElectricians
- Landscape Associates LimitedSpecialist contractors
- Mark & Hill LimitedProperty developers
- Master Jet LimitedSpecialist contractors
- Multiskill Communications Ltd.Electricians
What happens if JNM Plumbing 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
- 12851837
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 September 2020 (6 years ago)
- Registered office
- The Clock House Western Court, Bishop's Sutton, Alresford, SO24 0AA
- 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
- 2 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 Alresford
Other active plumbing and heating companies registered in Alresford.
- Pureair Climate Control Limited2026
- SRS Plumbing and Heating Limited2012
- Clockwork Plumbing & Heating Limited2024
All plumbing and heating companies in Alresford · All trades in Alresford · Plumbers and heating engineers across the UK
Frequently asked questions
When are JNM Plumbing Limited's accounts due?
JNM Plumbing Limited's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is JNM Plumbing 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 JNM Plumbing Limited still trading?
JNM Plumbing 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 JNM Plumbing Limited do?
JNM Plumbing Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is JNM Plumbing Limited?
JNM Plumbing Limited was incorporated on 2 September 2020, 6 years ago.
What is the penalty if JNM Plumbing 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 JNM Plumbing 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.