- Companies
- Plumbers and heating engineers
- Rickmansworth
- Smoothflow Commissioning Ltd
Smoothflow Commissioning Ltd
- Company number
- 03259832
- Incorporated
- 7 Oct 199630 years trading
- Registered office
- 35 High Street, Rickmansworth, Hertfordshire, WD3 1ET
- Nature of business
- Plumbing, heat and air-conditioning installation
Smoothflow Commissioning Ltd is a 30-year-old private limited company registered in Rickmansworth, company number 03259832, one of 22 plumbing and heating companies in Rickmansworth. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 down £159K (-29.1%) on the year before, to £386K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £848K against £562K owed within a year: 1.5 times cover.
- 27 employees on average, up from 26 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 |
|---|---|---|---|---|---|
| 30 Apr 2025 | £386K | £282K | £848K | £562K | 27 |
| 30 Apr 2024 | £545K | £463K | £1M | £617K | 26 |
| 30 Apr 2023 | £541K | £337K | £930K | £449K | 23 |
| 30 Apr 2022 | £398K | £581K | £976K | £648K | 26 |
| 30 Apr 2021 | £613K | £906K | £1.4M | £879K | 27 |
| 30 Apr 2020 | £1.2M | £1.1M | £2.2M | £1.1M | 26 |
| 30 Apr 2019 | £1M | £1.4M | £2.2M | £1.2M | |
| 30 Apr 2018 | £876K | £797K | £1.6M | £795K | 26 |
| 30 Apr 2017 | £806K | £791K | £1.7M | £951K | |
| 30 Apr 2016 | £900K | £837K | £1.9M | £1M |
Where Smoothflow Commissioning Ltd is registered
The registered office is in Rickmansworth (WD3), in the Three Rivers local authority area, East of England. Show WD3 1ET on a map.
Other trade companies in WD3
- DB Roofing Services LtdRoofers
- Ijesha Real Estate LtdProperty developers
- Aa Estate Developers LtdProperty developers
- DW17 LimitedProperty developers
- Twelve Construct LtdProperty developers
- Mill End Motor Company LtdMotor traders
- Daf Construction Services LtdBuilders
- J&V Customs LtdMechanics and garages
Also registered at this address
1 other company uses the same registered office as Smoothflow Commissioning Ltd.
- Smoothflow Water Treatment LimitedSpecialist contractors
What happens if Smoothflow Commissioning 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 03259832
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 October 1996 (30 years ago)
- Registered office
- 35 High Street, Rickmansworth, Hertfordshire, WD3 1ET
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 7 October 2025
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 Rickmansworth
Other active plumbing and heating companies registered in Rickmansworth.
- TWS Plumbing Solutions Ltd2026
- Water Master Watford Ltd2025
- All Seasons Heating & Cooling Limited2024
- Chess Valley Plumbing Limited2014
- Cool Breeze Air Ltd2017
- D Nagle Mechanical Limited2017
- Foley Plumbing Services Ltd2025
- G Rowe Plumbing & Heating Limited2010
All plumbing and heating companies in Rickmansworth · All trades in Rickmansworth · Plumbers and heating engineers across the UK
Frequently asked questions
When are Smoothflow Commissioning Ltd's accounts due?
Smoothflow Commissioning Ltd's next accounts are due at Companies House by 31 January 2027 (in 111 days), covering the period to 30 April 2026.
When is Smoothflow Commissioning Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Smoothflow Commissioning Ltd still trading?
Smoothflow Commissioning 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 Smoothflow Commissioning Ltd do?
Smoothflow Commissioning Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Smoothflow Commissioning Ltd?
Smoothflow Commissioning Ltd was incorporated on 7 October 1996, 30 years ago.
What is the penalty if Smoothflow Commissioning 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 Smoothflow Commissioning 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.