# DURHAM AIR CONDITIONING LTD. (03710765)

> DURHAM AIR CONDITIONING LTD. is an active private limited company (company number 03710765) incorporated on 10 February 1999, registered in Langley Moor. Its registered activity is plumbing, heat and air-conditioning installation (SIC 43220). Latest small accounts cover the period ending 31 August 2025, showing net assets of £819k and cash of £665k, with 38 employees on average. Net assets rose 23% on the prior period (£666k).

- Status: Active
- Incorporated: 1999-02-10
- Registered office: Langley Moor, DH7 8HJ
- SIC 43220: Plumbing, heat and air-conditioning installation
- Next accounts due: 2027-05-31
- Confirmation statement due: 2027-02-24
- Accounts type: TOTAL EXEMPTION FULL

By net assets it sits in the top quarter of 552 comparable companies in Newcastle (median £5,785, upper quartile £29k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-08-31 | £819k | £665k | £938k | £983k | — | — | 38 |
| 2024-08-31 | £666k | £337k | £1.50m | £1.34m | — | — | 30 |

current ratio 1.64; size band small.

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

- Net assets above zero: Net assets £818,947 at 31 August 2025
- Net assets up 10% or more on the prior period: +23.0% vs prior period
- Current assets at least 1.5× creditors within one year: Current ratio 1.64
- Cash at bank of £50,000 or more: Cash £665,198
- Incorporated five or more years ago: Incorporated 10 February 1999

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

## Persons with significant control

- Mr Keith Dunnill — owns 50–75% of shares, since 2016-04-06

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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/03710765
HTML: https://firmoscan.com/company/03710765-durham-air-conditioning-ltd