- Companies
- Plumbers and heating engineers
- Alnwick
- M.Marshall and Sons Limited
M.Marshall and Sons Limited
- Company number
- 04600531
- Incorporated
- 26 Nov 200223 years trading
- Registered office
- 9 West Acres, Alnwick, Northumberland, NE66 2PU
- Nature of business
- Plumbing, heat and air-conditioning installation
M.Marshall and Sons Limited is a 23-year-old private limited company registered in Alnwick, company number 04600531, one of 10 plumbing and heating companies in Alnwick. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £3,407 (-1.1%) on the year before, to £302K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £264K against £112K owed within a year: 2.4 times cover.
- 5 employees on average, down from 7 the year before.
- 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 Oct 2025 | £302K | £198K | £264K | £112K | 5 |
| 31 Oct 2024 | £305K | £351K | £430K | £129K | 7 |
| 30 Apr 2023 | £218K | £141K | £347K | £126K | 7 |
| 30 Apr 2022 | £208K | £218K | £300K | £77K | 7 |
| 30 Apr 2021 | £206K | £326K | £141K | 9 | |
| 30 Apr 2020 | £154K | £192K | £63K | 9 | |
| 30 Apr 2019 | £184K | £250K | £89K | ||
| 30 Apr 2018 | £180K | £249K | £97K | ||
| 30 Apr 2017 | £183K | £285K | £132K | ||
| 30 Apr 2016 | £86K | £23K | £200K | £144K |
Where M.Marshall and Sons Limited is registered
The registered office is in Alnwick (NE66), in the Northumberland local authority area, North East. Show NE66 2PU on a map.
Other trade companies in NE66
- KFW Heating Northumberland LtdPlumbers and heating engineers
- P38Ne LimitedMotor traders
- Wyatt Worx LimitedMachinery repair and installation
- Armtech Services LtdMachinery repair and installation
- Farm, Estates & Property Services LimitedInstallers
- Blue Gables Laundry LtdCleaning companies
- Washd Valeting LtdMechanics and garages
- M.J. Douglas Joiner& Builder LtdSpecialist contractors
What happens if M.Marshall and Sons 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 04600531
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 November 2002 (23 years ago)
- Registered office
- 9 West Acres, Alnwick, Northumberland, NE66 2PU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 30 April 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 Alnwick
Other active plumbing and heating companies registered in Alnwick.
- N&P Plumbing and Heating Services Limited2008
- South End Plumbing and Heating Ltd2002
- The Chimney Doctor Northumberland Ltd2019
- W R Veevers & Son Limited2021
- Weightman Plumbing & Heating Ltd2024
- Amalfi Invest Ltd2024
- Heatbase Ltd.2013
- JBT Plumbing & Heating (Alnwick) Ltd2023
All plumbing and heating companies in Alnwick · All trades in Alnwick · Plumbers and heating engineers across the UK
Frequently asked questions
When are M.Marshall and Sons Limited's accounts due?
M.Marshall and Sons Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is M.Marshall and Sons Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is M.Marshall and Sons Limited still trading?
M.Marshall and Sons 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 M.Marshall and Sons Limited do?
M.Marshall and Sons Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is M.Marshall and Sons Limited?
M.Marshall and Sons Limited was incorporated on 26 November 2002, 23 years ago.
What is the penalty if M.Marshall and Sons 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 M.Marshall and Sons 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.