- Companies
- Specialist contractors
- Hayes
- Windermere Control Systems Limited
Windermere Control Systems Limited
- Company number
- 05311991
- Incorporated
- 13 Dec 200421 years trading
- Registered office
- c/o C/O S W Frankson & Co, 364 High Street, Harlington, Hayes, Middlesex, UB3 5LF
- Nature of business
- Other specialised construction activities n.e.c.
Windermere Control Systems Limited is a 21-year-old private limited company registered in Hayes, company number 05311991, one of 84 specialist construction companies in Hayes. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Public contracts won
Windermere Control Systems Limited has one public sector contract award on record; the ones with their own published value total £102K (2025). 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 |
|---|---|---|---|
| Royal Holloway and Bedford New College | STA-26008 BMS Maintenance and Reactive Works Contract | £102K | 23 Sep 2025 |
Where Windermere Control Systems Limited is registered
The registered office is in Hayes (UB3), in the Hillingdon local authority area, London. Show UB3 5LF on a map.
Other trade companies in UB3
- Rennove LimitedProperty developers
- KSJ Design & Build LtdBuilders
- KCRQ LimitedCleaning companies
- HKR Roofing LtdRoofers
- Syg Development Group LtdProperty developers
- Ironspan Industrial Services LtdMachinery repair and installation
- RK9 LimitedBuilders
- Elite Construction and Roofing LimitedBuilders
Also registered at this address
10 other companies use the same registered office as Windermere Control Systems Limited.
- Air Cargo Services LimitedMachinery repair and installation
- City Plant Displays LimitedLandscapers and gardeners
- Converting London LimitedFinishing trades
- Custom Metal Roofing LimitedRoofers
- Humes Avenue Garage LimitedMechanics and garages
- Imperial Plumbing and Heating LimitedPlumbers and heating engineers
- Maxglow (Hayes) LimitedPlumbers and heating engineers
- Mli Refurb LimitedSpecialist contractors
- Prime Auto Glazing LimitedMechanics and garages
- Tad Sargent Reupholstery LimitedRepair services
What happens if Windermere Control Systems 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 05311991
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 December 2004 (21 years ago)
- Registered office
- c/o C/O S W Frankson & Co, 364 High Street, Harlington, Hayes, Middlesex, UB3 5LF
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 13 December 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Hayes
Other active specialist construction companies registered in Hayes.
- A Sidhu Limited2026
- A&V Fire Protection Ltd2018
- A2Z Construction Consultancy Ltd2026
- Advanced Gas Utilities Ltd2021
- Ainz Consultants Ltd2021
- Akp Drill Limited2026
- Alex UK Construction Ltd2024
- Alfred Rigging Ltd2019
All specialist construction companies in Hayes · All trades in Hayes · Specialist contractors across the UK
Frequently asked questions
When are Windermere Control Systems Limited's accounts due?
Windermere Control Systems Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Windermere Control Systems Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Windermere Control Systems Limited still trading?
Windermere Control Systems 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 Windermere Control Systems Limited do?
Windermere Control Systems Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Windermere Control Systems Limited?
Windermere Control Systems Limited was incorporated on 13 December 2004, 21 years ago.
Has Windermere Control Systems Limited won public sector contracts?
Yes. Windermere Control Systems Limited has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £102K), most recently from Royal Holloway and Bedford New College.
What is the penalty if Windermere Control Systems 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 Windermere Control Systems 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.