- Companies
- Plumbers and heating engineers
- Enfield
- Windmill Brothers Limited
Windmill Brothers Limited
- Company number
- 04240567
- Incorporated
- 25 Jun 200125 years trading
- Registered office
- Silver Rose Unit 21 East Lodge Village, East Lodge Lane, Enfield, EN2 8AS
- Nature of business
- Plumbing, heat and air-conditioning installation
Windmill Brothers Limited is a 25-year-old private limited company registered in Enfield, company number 04240567, one of 94 plumbing and heating companies in Enfield. Its next accounts are due at Companies House on 2 January 2027, and its first CT600 is due at HMRC on 31 March 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 £439K (+138.4%) on the year before, to £756K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £815K against £34K owed within a year: more than 10 times cover.
- 4 employees on average, down from 5 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 Mar 2025 | £756K | £815K | £34K | 4 | |
| 31 Mar 2024 | £317K | £388K | £397K | £22K | 5 |
| 31 Mar 2023 | £225K | £338K | £343K | £75K | 5 |
| 31 Mar 2022 | £329K | £396K | £400K | £35K | 4 |
| 31 Mar 2021 | £332K | £593K | £596K | £236K | 5 |
| 31 Mar 2020 | £358K | £592K | £596K | £208K | 5 |
| 31 Mar 2019 | £347K | £339K | £372K | £47K | 4 |
| 31 Mar 2018 | £340K | £265K | £377K | £65K | 2 |
| 31 Mar 2017 | £256K | £238K | £335K | £97K | 2 |
| 31 Mar 2016 | £78K | £103K | £176K | £115K | 2 |
Where Windmill Brothers Limited is registered
The registered office is in Enfield (EN2), in the Enfield local authority area, London. Show EN2 8AS on a map.
Other trade companies in EN2
- N.O.J Recovery Services LtdMechanics and garages
- 1901 Bespoke LimitedRepair services
- Allfloors London LtdFloor and wall tilers
- Global Plant and Construction LtdProperty developers
- Bmap LtdFinishing trades
- MK Decorator (London) LtdPainters and decorators
- Cityrise Scaffolding LimitedScaffolders
- Alc Maintenance LtdMachinery repair and installation
Shared registered office
27 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 Windmill Brothers 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 2 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 3 Jan 2027 to 2 Feb 2027 | £150 |
| 1 to 3 months late | 3 Feb 2027 to 2 Apr 2027 | £375 |
| 3 to 6 months late | 3 Apr 2027 to 2 Jul 2027 | £750 |
| More than 6 months late | From 3 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 3 Apr 2027 | £200 |
| 3 months late | 2 Jul 2027 | another £200 |
| 6 months late | 2 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 2 Apr 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
- 04240567
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 June 2001 (25 years ago)
- Registered office
- Silver Rose Unit 21 East Lodge Village, East Lodge Lane, Enfield, EN2 8AS
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 2 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 25 June 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 Enfield
Other active plumbing and heating companies registered in Enfield.
- Wise Heating Ltd2025
- 2Ma Plumbing and Heating Ltd2024
- Aac Aircon Limited2013
- Abz Connect Ltd2026
- Airfix Heating Cooling Ltd2025
- Akbulut Pumbing Ltd2020
- Aligas Plumbing & Heating Ltd2019
- Altuntas Plumbing & Heating Ltd2024
All plumbing and heating companies in Enfield · All trades in Enfield · Plumbers and heating engineers across the UK
Frequently asked questions
When are Windmill Brothers Limited's accounts due?
Windmill Brothers Limited's next accounts are due at Companies House by 2 January 2027 (in 81 days), covering the period to 2 April 2026.
When is Windmill Brothers Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 31 March 2026, due by 31 March 2027, and one for the period to 2 April 2026, due by 2 April 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Windmill Brothers Limited still trading?
Windmill Brothers 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 Windmill Brothers Limited do?
Windmill Brothers Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Windmill Brothers Limited?
Windmill Brothers Limited was incorporated on 25 June 2001, 25 years ago.
What is the penalty if Windmill Brothers 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 Windmill Brothers 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.