£1.92m
−2%vs Jul 2024Active01706967Private limited companySouthall
HYDRO PLANT LIMITED
Significant control: Teresa Marron (25–50%), Bernard Marron (25–50%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
Watch this company
Get an email when Companies House records a change for Hydro Plant Limited: status, filings, accounts, officers or owners. Free.
Not live yet: alerts start by 15 December 2026. We store your email and this company number only, for these alerts. If alerts don’t launch, we tell you and delete your address. Privacy
Coming soon · product and service lists
What does Hydro Plant Limited sell?
Registered activity: Other specialised construction activities n.e.c. (SIC 43999). We’re building product and service lists for UK companies. Get this one when it’s ready.
One email, only about this. If we don’t launch within 60 days we’ll tell you. Privacy
01
Summary
HYDRO PLANT LIMITED is an active private limited company (company number 01706967) incorporated on 16 March 1983, registered in Southall. Its registered activity is other specialised construction activities n.e.c. (SIC 43999). Latest small accounts cover the period ending 31 July 2025, showing net assets of £1.92m and cash of £1.03m, with 3 employees on average. Net assets fell 2% on the prior period (£1.96m).
Peer position · net assets
By net assets it sits in the top quarter of 4,726 comparable companies in Greater London (median £5,286, upper quartile £35k).
02
Ownership and control
- Mrs Teresa Marron
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mr Bernard Marron
- owns 25–50% of shares
- holds 25–50% of voting rights
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 16 March 198343 yrs ago
- Next accounts due
- 30 April 2027in 184 days
- Confirmation statement due
- 30 March 2027in 153 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 43999
- Other specialised construction activities n.e.c.
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£1.03m
+5%vs Jul 2024Not reported
3
No changevs Jul 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 July 2025 | £1.92m | £1.03m | — | £144k | — | — | 3 |
| 31 July 2024 | £1.96m | £989k | — | £165k | — | — | 3 |
Current ratio10.58Current assets ÷ creditors within one year
Cash per employee£344kCash ÷ average employees
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets above zeroNet assets £1,918,121 at 31 July 2025
- Current assets at least 1.5× creditors within one yearCurrent ratio 10.58
- Cash at bank of £50,000 or moreCash £1,033,015
- Incorporated five or more years agoIncorporated 16 March 1983
Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.
07
Timeline
- Next accounts duein 184 days
- Confirmation statement duein 153 days
- Accounts period endNet assets £1.92m · small accounts
- Accounts period endNet assets £1.96m · small accounts
- Incorporated
08
Similar companies in Greater London
- COLETS PILING LIMITEDEffingham · inc. Apr 1983
- KENWOOD DAMP-PROOFING LIMITEDWatford · inc. Dec 1982
- HOWARD'S HYDROCARE LIMITEDNazeing · inc. Sept 1983
- FOURWAYS PLANT LIMITEDWaltham Cross · inc. Sept 1983
- HAMMOND BUILDERS LIMITEDEdgware · inc. Sept 1982
- TRACEMODE LIMITEDBexleyheath · inc. Nov 1983
All companies incorporated on 16 March 1983 · in Mar 1983.
09
Reminders for HYDRO PLANT LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.