# DH MECHANICAL & VENTILATION LTD (NI671144)

> DH MECHANICAL & VENTILATION LTD is an active private limited company (company number NI671144) incorporated on 20 July 2020, registered in Trillick. Its registered activity is plumbing, heat and air-conditioning installation (SIC 43220). Latest small accounts cover the period ending 31 July 2025, showing net assets of £152k and cash of £223k, with 8 employees on average. Net assets rose 2905% on the prior period (£5,052).

- Status: Active
- Incorporated: 2020-07-20
- Registered office: Trillick, BT78 3PJ
- SIC 43220: Plumbing, heat and air-conditioning installation
- SIC 43999: Other specialised construction activities n.e.c.
- Next accounts due: 2027-04-30
- Confirmation statement due: 2027-08-03
- Accounts type: TOTAL EXEMPTION FULL

By net assets it sits in the top quarter of 429 comparable companies in Belfast (median £18k, upper quartile £81k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-07-31 | £152k | £223k | £205k | £345k | — | — | 8 |
| 2024-07-31 | £5,052 | £17k | £142k | £154k | — | — | 8 |

current ratio 1.24; size band micro.

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

- Net assets above zero: Net assets £151,796 at 31 July 2025
- Net assets up 10% or more on the prior period: +2904.7% vs prior period
- Cash at bank of £50,000 or more: Cash £222,533
- Incorporated five or more years ago: Incorporated 20 July 2020

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

## Persons with significant control

- Mr Damien Hannigan — owns 75–100% of shares, since 2020-07-20

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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/NI671144
HTML: https://firmoscan.com/company/NI671144-dh-mechanical-ventilation-ltd