- Companies
- Plumbers and heating engineers
- Windsor
- Flow Designs Ltd
Flow Designs Ltd
- Company number
- 15795392
- Incorporated
- 22 Jun 20242 years trading
- Registered office
- 8 Nelson Road, Windsor, SL4 3RQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Flow Designs Ltd is a 2-year-old private limited company registered in Windsor, company number 15795392, one of 24 plumbing and heating companies in Windsor. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 30 June 2025, as filed at Companies House.
Where Flow Designs Ltd is registered
The registered office is in Windsor (SL4), in the Windsor and Maidenhead local authority area, South East. Show SL4 3RQ on a map.
Other trade companies in SL4
- A3 Hand Car Wash and Valeting Center LimitedCleaning companies
- Time Watch Repair Watford LtdRepair services
- Mobile Tyre Services 24/7 LtdMechanics and garages
- Hullscrub Thames LtdCleaning companies
- Black Rose Automotive Group LtdMotor traders
- Maldec Hatchet Farm LimitedProperty developers
- Pinehill Homes Partnerships LtdProperty developers
- Heatsense Renewables LtdElectricians
What happens if Flow Designs Ltd 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 15795392
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 June 2024 (2 years ago)
- Registered office
- 8 Nelson Road, Windsor, SL4 3RQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 21 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 Windsor
Other active plumbing and heating companies registered in Windsor.
- Heatsense Services Limited2022
- I B Installations Limited2017
- KS Boilers Services Ltd2025
- LH Premier Property Services Limited2014
- Praetomen Limited2004
- Premium Plumbers Ltd2020
- Retro Plumbing & Heating Ltd2021
- RK Plumbing and Heating Services Limited2026
All plumbing and heating companies in Windsor · All trades in Windsor · Plumbers and heating engineers across the UK
Frequently asked questions
When are Flow Designs Ltd's accounts due?
Flow Designs Ltd's next accounts are due at Companies House by 31 March 2027 (in 170 days), covering the period to 30 June 2026.
When is Flow Designs Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Flow Designs Ltd still trading?
Flow Designs Ltd 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 Flow Designs Ltd do?
Flow Designs Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Flow Designs Ltd?
Flow Designs Ltd was incorporated on 22 June 2024, 2 years ago.
What is the penalty if Flow Designs Ltd 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 Flow Designs Ltd 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.