- Companies
- Plumbers and heating engineers
- Ascot
- Proflow Mechanical Ltd
Proflow Mechanical Ltd
- Company number
- 17044867
- Incorporated
- 20 Feb 2026
- Registered office
- Index House, ST. Georges Lane, Ascot, SL5 7ET
- Nature of business
- Plumbing, heat and air-conditioning installation
Proflow Mechanical Ltd is a newly incorporated private limited company registered in Ascot, company number 17044867, one of 11 plumbing and heating companies in Ascot. Its next accounts are due at Companies House on 20 November 2027, and its first CT600 is due at HMRC on 19 February 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Proflow Mechanical Ltd is registered
The registered office is in Ascot (SL5), in the Windsor and Maidenhead local authority area, South East. Show SL5 7ET on a map.
Other trade companies in SL5
- Autova UK LtdMotor traders
- Drive Care Hub LtdMotor traders
- Berkshire Eco Clean LimitedCleaning companies
- Sunfix Solar LtdInstallers
- SRD Recoveries LtdMechanics and garages
- The Marlow Roofermann and Sons LimitedRoofers
- Painting Precision LtdPainters and decorators
- Loyal to the Soil LtdLandscapers and gardeners
Also registered at this address
12 other companies use the same registered office as Proflow Mechanical Ltd.
- Autoport UK LimitedMotor traders
- Benjamin's Workshop LimitedJoiners and carpenters
- Berkshire Eco Clean LimitedCleaning companies
- Croft Homes Developments LimitedBuilders
- Houseline Construction LtdProperty developers
- Kitelands Property LimitedProperty developers
- O S R Construction & Groundworks LtdBuilders
- Rockhold Kew LimitedProperty developers
- Rockhold Walpole LimitedProperty developers
- Santa Maria Investments LimitedProperty developers
- The Revival Company (Southern) LtdFinishing trades
- Ylm Services LimitedFinishing trades
What happens if Proflow Mechanical 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 20 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 21 Nov 2027 to 20 Dec 2027 | £150 |
| 1 to 3 months late | 21 Dec 2027 to 20 Feb 2028 | £375 |
| 3 to 6 months late | 21 Feb 2028 to 20 May 2028 | £750 |
| More than 6 months late | From 21 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 17044867
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 February 2026
- Registered office
- Index House, ST. Georges Lane, Ascot, SL5 7ET
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
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 Ascot
Other active plumbing and heating companies registered in Ascot.
- Russell Plumbing Limited2006
- S Kings Interiors Ltd2022
- The Cooling Team Ltd2024
- Air Supply (Windsor) Limited2007
- Arb Plumbing and Heating Services Ltd2010
- Bath Brains Limited2023
- Coppersmith's Plumbing & Heating Ltd2026
- Future Plumbing Limited2003
All plumbing and heating companies in Ascot · All trades in Ascot · Plumbers and heating engineers across the UK
Frequently asked questions
When are Proflow Mechanical Ltd's accounts due?
Proflow Mechanical Ltd's next accounts are due at Companies House by 20 November 2027 (in 404 days), covering the period to 28 February 2027.
When is Proflow Mechanical Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 19 February 2027, due by 19 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Proflow Mechanical Ltd still trading?
Proflow Mechanical 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 Proflow Mechanical Ltd do?
Proflow Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Proflow Mechanical Ltd?
Proflow Mechanical Ltd was incorporated on 20 February 2026, less than a year ago.
What is the penalty if Proflow Mechanical 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 Proflow Mechanical 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.