- Companies
- Electricians
- Upminster
- McDonald Brown Limited
McDonald Brown Limited
- Company number
- 01253816
- Incorporated
- 6 Apr 197650 years trading
- Registered office
- Units 11 & 12 Upminster Trading Park, Warley Street, Upminster, RM14 3PJ
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Other construction installation; Other specialised construction activities n.e.c.
McDonald Brown Limited is a 50-year-old private limited company registered in Upminster, company number 01253816, one of 42 electrical contractors in Upminster. 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.
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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 £128K (+19.9%) on the year before, to £769K.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £2.1M against £1.4M owed within a year: 1.5 times cover.
- 17 employees on average, down from 18 the year before.
- Balance sheets on record for 5 years, 2019 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £769K | £483K | £2.1M | £1.4M | 17 |
| 31 Mar 2025 | £641K | £119K | £1.6M | £1.1M | 18 |
| 31 Mar 2024 | £524K | £51K | £920K | £613K | 17 |
| 31 Mar 2020 | £823K | £767K | £1.8M | £977K | 20 |
| 31 Mar 2019 | £742K | £234K | £1.9M | £1.2M | 23 |
Who runs and owns McDonald Brown Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| G*** M*** | Director | Sep 2006 |
| L*** M*** | Director | Sep 2006 |
9 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| J*** B*** | Secretary | Feb 2022 | |
| J*** B*** | Director | Apr 1998 | May 2010 |
| W*** B*** | Director | Oct 2006 | Nov 2021 |
| W*** H*** | Director | Mar 2002 | Apr 2003 |
| D*** M*** | Director | Nov 2008 | |
| D*** M*** | Director | May 2010 | |
| J*** M*** | Director | Jan 1993 | |
| J*** M*** | Director | Jul 2008 | |
| M*** M*** | Director | Jan 1993 |
Person with significant control
Charges (secured borrowing)
1 of 4 registered charges are outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| HSBC Bank PLC | Outstanding | Aug 2010 |
| Barclays Bank PLC | Satisfied Jul 2011 | Jan 2008 |
| Barclays Bank PLC | Satisfied Jul 2011 | Apr 1994 |
| Barclays Bank PLC | Satisfied Jul 2011 | Mar 1994 |
Public contracts won
McDonald Brown Limited has one public sector contract award on record; the ones with their own published value total £75K (2026). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| National Maritime Museum | LEV Replacement | £75K | 13 Jan 2026 |
Where McDonald Brown Limited is registered
The registered office is in Upminster (RM14), in the Brentwood local authority area, East of England. Show RM14 3PJ on a map.
Other trade companies in RM14
- Bobofresh LtdCleaning companies
- HTS Construction LtdBuilders
- We Fix Energy LtdCivil engineering
- ZH Services LtdBuilders
- Ragasan LimitedBuilders
- Your Serve LtdCleaning companies
- LC Engineering LtdMachinery repair and installation
- Caat Interiors LtdInstallers
Also registered at this address
1 other company uses the same registered office as McDonald Brown Limited.
- M.B.F.M. LimitedInstallers
What happens if McDonald Brown 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
- 01253816
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 April 1976 (50 years ago)
- Registered office
- Units 11 & 12 Upminster Trading Park, Warley Street, Upminster, RM14 3PJ
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 28 June 2026
- Charges (mortgages)
- 1 outstanding of 4 registered
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Upminster
Other active electrical contractors registered in Upminster.
- Mounthill Engineers Limited1998
- Nomico Electrical Company Limited1973
- Plumel Ltd2018
- PV Electrical Services Limited2018
- Reed Electrical Services Limited2005
- Rna Electrical Ltd2025
- RS Control Solutions Limited2018
- RWT Electrical Limited2003
All electrical contractors in Upminster · All trades in Upminster · Electricians across the UK
Frequently asked questions
When are McDonald Brown Limited's accounts due?
McDonald Brown 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 McDonald Brown 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 McDonald Brown Limited still trading?
McDonald Brown 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 McDonald Brown Limited do?
McDonald Brown Limited is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290); Other specialised construction activities n.e.c. (SIC 43999).
How old is McDonald Brown Limited?
McDonald Brown Limited was incorporated on 6 April 1976, 50 years ago.
Who runs McDonald Brown Limited?
McDonald Brown Limited has 2 active directors, the longest-serving appointed in Sep 2006. Their names and service addresses are on the Companies House register.
Who owns McDonald Brown Limited?
One person or company has significant control of McDonald Brown Limited: Mcdonald Insulation & Maintenance Ltd (owns 75% or more of the shares).
Has McDonald Brown Limited won public sector contracts?
Yes. McDonald Brown Limited has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £75K), most recently from National Maritime Museum.
What is the penalty if McDonald Brown 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 McDonald Brown 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.