£434k
+42%vs Jan 2024Active10553909Private limited companyLondon
S I MECHANICAL-INSTALLATION LTD
Significant control: Angela Sirghi (25–50%), Ion Sirghi (50–75%)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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 S I Mechanical-Installation Ltd sell?
Registered activity: Plumbing, heat and air-conditioning installation (SIC 43220). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
S I MECHANICAL-INSTALLATION LTD is an active private limited company (company number 10553909) incorporated on 9 January 2017, registered in London. Its registered activity is plumbing, heat and air-conditioning installation (SIC 43220). Latest small accounts cover the period ending 31 January 2025, showing net assets of £434k and cash of £263k, with 4 employees on average. Net assets rose 42% on the prior period (£306k).
Peer position · net assets
By net assets it sits in the top quarter of 2,146 comparable companies in London (median £2,932, upper quartile £20k).
02
Ownership and control
- Mrs Angela Sirghi
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mr Ion Sirghi
- owns 50–75% of shares
- holds 50–75% 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
- 9 January 20179 yrs ago
- Next accounts due
- 31 October 2026in 6 days
- Confirmation statement due
- 23 January 2027in 90 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 43220
- Plumbing, heat and air-conditioning installation
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£263k
+90%vs Jan 2024Not reported
4
+33%vs Jan 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 January 2025 | £434k | £263k | £215k | £74k | — | — | 4 |
| 31 January 2024 | £306k | £139k | £180k | £30k | — | — | 3 |
Current ratio6.45Current assets ÷ creditors within one year
Cash per employee£66kCash ÷ 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 £433,660 at 31 January 2025
- Net assets up 10% or more on the prior period+41.7% vs prior period
- Current assets at least 1.5× creditors within one yearCurrent ratio 6.45
- Cash at bank of £50,000 or moreCash £263,363
- Incorporated five or more years agoIncorporated 9 January 2017
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
- Confirmation statement duein 90 days
- Next accounts duein 6 days
- Accounts period endNet assets £434k · small accounts
- Accounts period endNet assets £306k · small accounts
- Incorporated
08
Similar companies in London
- GAS WRIGHT SERVICES LTDLondon · inc. Jan 2017
- TRUSTED BOILERS LTDLondon · inc. Jan 2017
- PLUMBING WISE LTD.London · inc. Jan 2017
- CSL HEATING & MECHANICAL SERVICES LIMITEDLondon · inc. Jan 2017
- GALPLUMB LTDLondon · inc. Jan 2017
- PURA PLUMBING AND HEATING COMPANY LIMITEDLondon · inc. Jan 2017
All companies incorporated on 9 January 2017 · in Jan 2017.
09
Reminders for S I MECHANICAL-INSTALLATION LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.