£187k
+382%vs Jan 2024Active12426402Private limited companyLondon
S.L.J MECHANICAL SERVICES LTD
Significant control: Lee Grimshaw-Jones (25–50%), John Bricknell (25–50%) and 1 more
From public filings as at 31 Aug 2026; may contain errors or be out of date.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.L.J Mechanical Services 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.L.J MECHANICAL SERVICES LTD is an active private limited company (company number 12426402) incorporated on 27 January 2020, 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 £187k and cash of £0, with 0 employees on average. Net assets rose 382% on the prior period (£39k).
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
- Mr Lee Grimshaw-Jones
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mr John Bricknell
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mr Stewart Antony Begg
- 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
- 27 January 20206 yrs ago
- Next accounts due
- 31 October 2026in 4 days
- Confirmation statement due
- 10 February 2027in 106 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
£0
−100%vs Jan 2024Not reported
0
vs Jan 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 January 2025 | £187k | £0 | £710k | £569k | — | — | 0 |
| 31 January 2024 | £39k | £49k | £525k | £469k | — | — | 0 |
Current ratio1.44Current assets ÷ creditors within one year
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 £186,655 at 31 January 2025
- Net assets up 10% or more on the prior period+382.2% vs prior period
- Incorporated five or more years agoIncorporated 27 January 2020
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 106 days
- Next accounts duein 4 days
- Accounts period endNet assets £187k · small accounts
- Accounts period endNet assets £39k · small accounts
- Incorporated
08
Similar companies in London
- C2H2 LTDLondon · inc. Jan 2020
- FIORENTINI PLUMBING & HEATING LTDLondon · inc. Jan 2020
- QUICK MOUNTING LTDLondon · inc. Jan 2020
- BERNCOOL LTDLondon · inc. Jan 2020
- PROPERTY FIXERS AN CO LTDLondon · inc. Jan 2020
- THERMAL EFFICIENT LTDLondon · inc. Jan 2020
All companies incorporated on 27 January 2020 · in Jan 2020.
09
Reminders for S.L.J MECHANICAL SERVICES LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.