- Companies
- Plumbers and heating engineers
- Chesham
- Mark Barnes Plumbing & Heating Ltd
Mark Barnes Plumbing & Heating Ltd
- Company number
- 06319534
- Incorporated
- 20 Jul 200719 years trading
- Registered office
- Unit 7A Waterside Business Park, Waterside, Chesham, Buckinghamshire, HP5 1PE
- Nature of business
- Plumbing, heat and air-conditioning installation
Mark Barnes Plumbing & Heating Ltd is a 19-year-old private limited company registered in Chesham, company number 06319534, one of 28 plumbing and heating companies in Chesham. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
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 Mark Barnes Plumbing & Heating LtdOr 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 down £19K (-84.1%) on the year before, to £3,676.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £17K against £13K owed within a year: 1.3 times cover.
- 2 employees 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 |
|---|---|---|---|---|---|
| 31 Jul 2025 | £3,676 | £9,533 | £17K | £13K | 2 |
| 31 Jul 2024 | £23K | £29K | £41K | £18K | 2 |
| 31 Jul 2023 | £29K | £40K | £50K | £21K | 2 |
| 31 Jul 2022 | £18K | £21K | £27K | £9,014 | 2 |
| 31 Jul 2021 | £24K | £35K | £38K | £15K | 1 |
| 31 Jul 2020 | £17K | £33K | £43K | £28K | 1 |
| 31 Jul 2019 | £6,018 | £34K | £39K | £34K | |
| 31 Jul 2018 | £1,602 | £21K | £25K | £33K | |
| 31 Jul 2017 | £1,629 | £22K | £25K | £20K | |
| 31 Jul 2016 | £14K | £35K | £36K | £22K |
Where Mark Barnes Plumbing & Heating Ltd is registered
The registered office is in Chesham (HP5), in the Buckinghamshire local authority area, South East. Show HP5 1PE on a map.
Other trade companies in HP5
- Whitley Electrical LtdElectricians
- Zpgarvies LtdInstallers
- T D Autos LtdMechanics and garages
- Hemel A1 Tyres LtdMotor traders
- Berkhamsted Motor Group LtdMotor traders
- Pleasure Hills LtdProperty developers
- Keo Driveways & Patios LtdLandscapers and gardeners
- R&D Property Partners LtdProperty developers
Shared registered office
44 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Mark Barnes Plumbing & Heating 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 06319534
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 July 2007 (19 years ago)
- Registered office
- Unit 7A Waterside Business Park, Waterside, Chesham, Buckinghamshire, HP5 1PE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 6 July 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 Chesham
Other active plumbing and heating companies registered in Chesham.
- Marotech Ltd2014
- Piping Hot (UK) Ltd2008
- Plumber Paul Limited2009
- Powerrod Limited1994
- Prime Plumbing Solutions (Bucks) Ltd2024
- RJL Heating & Plumbing Ltd2019
- SJK Boiler Solutions Ltd2017
- Steve Barnett Plumbing & Bathrooms Limited2004
All plumbing and heating companies in Chesham · All trades in Chesham · Plumbers and heating engineers across the UK
Frequently asked questions
When are Mark Barnes Plumbing & Heating Ltd's accounts due?
Mark Barnes Plumbing & Heating Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Mark Barnes Plumbing & Heating Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Mark Barnes Plumbing & Heating Ltd still trading?
Mark Barnes Plumbing & Heating 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 Mark Barnes Plumbing & Heating Ltd do?
Mark Barnes Plumbing & Heating Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Mark Barnes Plumbing & Heating Ltd?
Mark Barnes Plumbing & Heating Ltd was incorporated on 20 July 2007, 19 years ago.
What is the penalty if Mark Barnes Plumbing & Heating 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 Mark Barnes Plumbing & Heating 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.