# STH MECHANICAL LTD (11781822)

> STH MECHANICAL LTD is an active private limited company (company number 11781822) incorporated on 22 January 2019, registered in Derby. Its registered activity is plumbing, heat and air-conditioning installation (SIC 43220). Latest small accounts cover the period ending 31 March 2026, showing net assets of £41k and cash of £57k, with 2 employees on average. Net assets rose 25% on the prior period (£33k).

- Status: Active
- Incorporated: 2019-01-22
- Registered office: Derby, DE72 3TN
- SIC 43220: Plumbing, heat and air-conditioning installation
- Next accounts due: 2027-12-31
- Confirmation statement due: 2027-02-05
- Accounts type: TOTAL EXEMPTION FULL

By net assets it sits in the top quarter of 324 comparable companies in Derby (median £3,891, upper quartile £27k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2026-03-31 | £41k | £57k | £3,631 | £85k | — | — | 2 |
| 2025-03-31 | £33k | £58k | £34k | £111k | — | — | 2 |

current ratio 0.86; size band micro.

## Filing and accounts signals (facts, not a rating)

- Net assets above zero: Net assets £40,820 at 31 March 2026
- Net assets up 10% or more on the prior period: +24.9% vs prior period
- Current assets below creditors within one year: Current ratio 0.86
- Cash at bank of £50,000 or more: Cash £57,113
- Incorporated five or more years ago: Incorporated 22 January 2019

How each signal is derived: https://firmoscan.com/methodology

## Persons with significant control

- Mr Stephen Thomas Hendley — owns 75–100% of shares; holds 75–100% of voting rights; can appoint or remove directors, since 2019-01-22
- Mrs Rebecca Kate Hendley — owns 25–50% of shares, since 2020-01-12

---
Source: Companies House register snapshot 2026-08-31, Open Government Licence v3.0. Information may have changed since that date and is not advice or a credit reference; check the official record before relying on it. Official record: https://find-and-update.company-information.service.gov.uk/company/11781822
HTML: https://firmoscan.com/company/11781822-sth-mechanical-ltd