£258
vs Mar 2025Active07521710Private limited companyMiddlesbrough
A1 HYDRO-STOP LIMITED
Significant control: Mark Smith (75–100%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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What does A1 Hydro-Stop 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.
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01
Summary
A1 HYDRO-STOP LIMITED is an active private limited company (company number 07521710) incorporated on 8 February 2011, registered in Middlesbrough. Its registered activity is other specialised construction activities n.e.c. (SIC 43999). Latest micro accounts cover the period ending 31 March 2026, showing net assets of £258, with 0 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 103% on the prior period (−£8,820). Across the last 3 periods on record the net-asset trend is volatile.
Peer position · net assets
By net assets it sits in the lower half of 373 comparable companies in Teesside (median £4,162, upper quartile £39k).
02
Ownership and control
- Mr Mark Smith
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
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
- 8 February 201115 yrs ago
- Next accounts due
- 31 December 2027in 432 days
- Confirmation statement due
- 22 February 2027in 120 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
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
0
vs Mar 2025| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2026 | £258 | — | — | £319 | — | — | 0 |
| 31 March 2025 | −£8,820 | — | — | £9,551 | — | — | 0 |
| 31 March 2024 | −£3,191 | — | — | £5,529 | — | — | 1 |
Current ratio1.81Current assets ÷ creditors within one year
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
06
Filing and accounts signals
- Net assets above zeroNet assets £258 at 31 March 2026
- Net assets up 10% or more on the prior period+102.9% vs prior period
- Current assets at least 1.5× creditors within one yearCurrent ratio 1.81
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 8 February 2011
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 432 days
- Confirmation statement duein 120 days
- Accounts period endNet assets £258 · micro accounts
- Accounts period endNet liabilities £8,820 · micro accounts
- Accounts period endNet liabilities £3,191 · micro accounts
- Incorporated
08
Similar companies in Teesside
- LEINSTER PROPERTY SERVICES LIMITEDStockton-On-Tees · inc. Jan 2011
- PRESTIGE WORKTOPS LIMITEDStockton-On-Tees · inc. Feb 2011
- A M COMMISSIONING LIMITEDBillingham · inc. Mar 2011
- R.WALL WELDING AND FENCING LIMITEDStockton On Tees · inc. May 2011
- AWG CIVIL ENGINEERING LIMITEDMiddlesbrough · inc. Oct 2010
- LUKE FRENCH COATINGS LIMITEDHartlepool · inc. Oct 2010
All companies incorporated on 8 February 2011 · in Feb 2011.
09
Reminders for A1 HYDRO-STOP LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.