- Company number
- 04681127
- Incorporated
- 27 Feb 200323 years trading
- Registered office
- Windmill Builders Limited Kensington Works, Off Nottingham Road, Ilkeston, Derbyshire, DE7 5NY
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Construction of other civil engineering projects n.e.c.
Windmill Builders Limited is a 23-year-old private limited company registered in Ilkeston, company number 04681127, one of 54 building contractors in Ilkeston. 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.
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 Windmill Builders LimitedOr 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 £22K (-4.8%) on the year before, to £448K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £169K against £104K owed within a year: 1.6 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £448K | £43K | £169K | £104K | 4 |
| 31 Mar 2025 | £471K | £69K | £166K | £86K | 4 |
| 31 Mar 2024 | £497K | £112K | £188K | £95K | 3 |
| 31 Mar 2023 | £489K | £122K | £216K | £80K | 4 |
| 31 Mar 2022 | £435K | £118K | £487K | £398K | 7 |
| 31 Mar 2021 | £426K | £140K | £498K | £401K | 8 |
| 31 Mar 2020 | £376K | £142K | £471K | £394K | 7 |
| 31 Mar 2019 | £444K | £73K | £571K | £412K | 8 |
| 31 Mar 2018 | £435K | £51K | £531K | £366K | 10 |
| 31 Mar 2017 | £389K | £10K | £526K | £382K |
Where Windmill Builders Limited is registered
The registered office is in Ilkeston (DE7), in the Erewash local authority area, East Midlands. Show DE7 5NY on a map.
Other trade companies in DE7
- E.T Montaggi LtdBuilders
- Drive Tech-England LtdSpecialist contractors
- D.M Scaffolding Services LtdScaffolders
- Peak Volt Renewables LtdInstallers
- GT Auto ND Traders LtdMotor traders
- E.R. Surveying LtdBuilders
- P.Burch Maintenance LtdFinishing trades
- Bird Muck & Moss LtdRoofers
What happens if Windmill Builders 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
- 04681127
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 February 2003 (23 years ago)
- Registered office
- Windmill Builders Limited Kensington Works, Off Nottingham Road, Ilkeston, Derbyshire, DE7 5NY
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Construction of other civil engineering projects n.e.c. (SIC 42990) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 13 March 2026
- Charges (mortgages)
- 4 outstanding of 4 registered
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Ilkeston
Other active building contractors registered in Ilkeston.
- Z Z C Building Ltd2023
- A&B Design & Build Ltd2023
- Advanced Build (Midlands) Limited2019
- Afk Hospitality Ltd2026
- Alvic Projects Ltd2026
- As Building and Groundworks Limited2024
- Ash G Construction Ltd2021
- Bennett Construction 00 Limited2018
All building contractors in Ilkeston · All trades in Ilkeston · Builders across the UK
Frequently asked questions
When are Windmill Builders Limited's accounts due?
Windmill Builders Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Windmill Builders 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 Windmill Builders Limited still trading?
Windmill Builders 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 Builders Limited do?
Windmill Builders Limited is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Windmill Builders Limited?
Windmill Builders Limited was incorporated on 27 February 2003, 23 years ago.
What is the penalty if Windmill Builders 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 Builders 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.