- Companies
- Specialist contractors
- Portsmouth
- Flow and Maintenance Co Ltd
Flow and Maintenance Co Ltd
- Company number
- 17305174
- Incorporated
- 28 Jun 2026
- Registered office
- 22 Powerscourt Road, Portsmouth, PO2 7JN
- Nature of business
- Other specialised construction activities n.e.c.
Flow and Maintenance Co Ltd is a newly incorporated private limited company registered in Portsmouth, company number 17305174, one of 193 specialist construction companies in Portsmouth. Its next accounts are due at Companies House on 28 March 2028, and its first CT600 is due at HMRC on 27 June 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.
Is this your company?
File the first 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 Flow and Maintenance Co LtdOr 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.
Where Flow and Maintenance Co Ltd is registered
The registered office is in Portsmouth (PO2), in the Portsmouth local authority area, South East. Show PO2 7JN on a map.
Other trade companies in PO2
- South Coast Garden Rooms LtdBuilders
- Novira Automotive LtdMotor traders
- Tony Parrack Fire Protection LtdSpecialist contractors
- Bmgcarpentry LtdJoiners and carpenters
- LLPG Carpentry LtdBuilders
- Xyz Developments LtdProperty developers
- Eco Amend Maintenance Service LtdFinishing trades
- Manila Haulage LtdMechanics and garages
What happens if Flow and Maintenance Co 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 28 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 29 Mar 2028 to 28 Apr 2028 | £150 |
| 1 to 3 months late | 29 Apr 2028 to 28 Jun 2028 | £375 |
| 3 to 6 months late | 29 Jun 2028 to 28 Sep 2028 | £750 |
| More than 6 months late | From 29 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 17305174
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 June 2026
- Registered office
- 22 Powerscourt Road, Portsmouth, PO2 7JN
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
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 Portsmouth
Other active specialist construction companies registered in Portsmouth.
- Focus Groundworks (Southern) Limited2015
- Frontier Landscapes South Ltd2015
- G & S Developments (Southern) Ltd2015
- G&I Parsons Limited2005
- G.I Projects Ltd2024
- Garnead Limited1992
- Garnead Plant Limited2026
- Generation Building Projects Ltd2023
All specialist construction companies in Portsmouth · All trades in Portsmouth · Specialist contractors across the UK
Frequently asked questions
When are Flow and Maintenance Co Ltd's accounts due?
Flow and Maintenance Co Ltd's next accounts are due at Companies House by 28 March 2028 (in 532 days), covering the period to 30 June 2027.
When is Flow and Maintenance Co 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 27 June 2027, due by 27 June 2028, and one for the period to 30 June 2027, due by 30 June 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Flow and Maintenance Co Ltd still trading?
Flow and Maintenance Co 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 and Maintenance Co Ltd do?
Flow and Maintenance Co Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Flow and Maintenance Co Ltd?
Flow and Maintenance Co Ltd was incorporated on 28 June 2026, less than a year ago.
What is the penalty if Flow and Maintenance Co 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 and Maintenance Co 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.