- Companies
- Plumbers and heating engineers
- High Wycombe
- JMC Heating and Plumbing Ltd
JMC Heating and Plumbing Ltd
- Company number
- 12427351
- Incorporated
- 27 Jan 20206 years trading
- Registered office
- 18 Manor Courtyard First Floor, Hughenden Avenue, High Wycombe, Buckinghamshire, HP13 5RE
- Nature of business
- Plumbing, heat and air-conditioning installation
JMC Heating and Plumbing Ltd is a 6-year-old private limited company registered in High Wycombe, company number 12427351, one of 120 plumbing and heating companies in High Wycombe. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 £125 (+11.9%) on the year before, to £1,177.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £18K against £23K owed within a year: 0.8 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 6 years, 2021 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £1,177 | £18K | £23K | 0 | |
| 31 Jan 2025 | £1,052 | £26K | £31K | 0 | |
| 31 Jan 2024 | £11K | £41K | £28K | 1 | |
| 31 Jan 2023 | £1,680 | £29K | £23K | 2 | |
| 31 Jan 2022 | £477 | £23K | £15K | 1 | |
| 31 Jan 2021 | £1,358 | £47K | £34K | 1 |
Where JMC Heating and Plumbing Ltd is registered
The registered office is in High Wycombe (HP13), in the Buckinghamshire local authority area, South East. Show HP13 5RE on a map.
Other trade companies in HP13
- HP13 6Ad LimitedProperty developers
- Rath’S Auto Care LtdMechanics and garages
- Danny Cleaning Solutions LtdCleaning companies
- Spec Plumbing and Heating LtdPlumbers and heating engineers
- S W Classics LtdMotor traders
- Groundedcarpetco LtdFinishing trades
- Ape's Gutters LtdRoofers
- Britannia Property Management LtdProperty developers
Also registered at this address
10 other companies use the same registered office as JMC Heating and Plumbing Ltd.
- BL Prime Scaffolding LimitedScaffolders
- Mfa Electrical LtdElectricians
- O'Connor Mechanical Services LtdPlumbers and heating engineers
- Ocs Heating and Gas LimitedBuilders
- Palmers Design & Build LtdBuilders
- S.W. Building and Carpentry LimitedInstallers
- SNG Plastering LimitedInstallers
- TMDB Investment 1 LimitedProperty developers
- TRGV Glass Glazing Windows & Doors LimitedGlaziers
- Upcycle Interiors LimitedProperty developers
What happens if JMC Heating and Plumbing 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 31 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 12427351
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 January 2020 (6 years ago)
- Registered office
- 18 Manor Courtyard First Floor, Hughenden Avenue, High Wycombe, Buckinghamshire, HP13 5RE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 26 January 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 High Wycombe
Other active plumbing and heating companies registered in High Wycombe.
- K O'Donoghue Gas Services Limited2020
- K. Ridgway Plumbing & Heating Limited2019
- KB Ventilation Limited2025
- Kingdom Heating Services Ltd2021
- KLT Plumbing & Heating Limited2025
- KPW Ltd2007
- Layton Air Conditioning Limited2025
- London Improvements Ltd2022
All plumbing and heating companies in High Wycombe · All trades in High Wycombe · Plumbers and heating engineers across the UK
Frequently asked questions
When are JMC Heating and Plumbing Ltd's accounts due?
JMC Heating and Plumbing Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is JMC Heating and Plumbing Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is JMC Heating and Plumbing Ltd still trading?
JMC Heating and Plumbing 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 JMC Heating and Plumbing Ltd do?
JMC Heating and Plumbing Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is JMC Heating and Plumbing Ltd?
JMC Heating and Plumbing Ltd was incorporated on 27 January 2020, 6 years ago.
What is the penalty if JMC Heating and Plumbing 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 JMC Heating and Plumbing 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.