opendata.bot
Company number
03435101

AIR COOL ENGINEERING (N.I.) LTD.

Officer · MULLAN, Daniel Martin and 4 others
Active
✓ Active company on the official register. Next accounts due 28 February 2027.

Company details

Registered name
AIR COOL ENGINEERING (N.I.) LTD.
Company number
03435101
Registered office
Unit K, Astonbury Farm, Aston, Hertfordshire, SG2 7EG
Company type
Private limited company
Incorporated on
17 September 1997
Status
Active
Age
28 years
Nature of business (SIC)
43220 — Plumbing, heat and air-conditioning installation · 96090 — Other service activities n.e.c.
Accounts — next due
28 Feb 2027
Accounts — last made up to
31 May 2025
Confirmation statement — next due
01 Oct 2026
Confirmation statement — last
17 Sept 2025

Officers

3 active · 2 resigned

secretary
Appointed 29/09/2000
Active
director
Appointed 17/09/1997
Active
director
Appointed 29/09/2000
Active

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Mr Martin Mullan
ownership-of-shares-50-to-75-percent
Notified 06/04/2016
Mr Kevin Mcleod
ownership-of-shares-25-to-50-percent
Notified 06/04/2016

Corporate structure

Who controls this company, and who they control in turn

Connections

Serving officers

secretary Appointed 29/09/2000
director Appointed 17/09/1997
director Appointed 29/09/2000

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
06/04/2016 Person with significant control added Mr Kevin Mcleod
06/04/2016 Person with significant control added Mr Martin Mullan
30/06/2006 Charge registered Legal mortgage presented for registration in northern ireland on 4 july 2006 and
29/09/2000 Secretary resigned DOORY, Jaqueline
29/09/2000 Director appointed MULLAN, Daniel Martin
29/09/2000 Secretary appointed MULLAN, Daniel Martin
17/09/1997 Corporate-nominee-secretary resigned CHETTLEBURGH INTERNATIONAL LIMITED
17/09/1997 Corporate-nominee-secretary appointed CHETTLEBURGH INTERNATIONAL LIMITED
17/09/1997 Secretary appointed DOORY, Jaqueline
17/09/1997 Director appointed MCLEOD, Kevin Warwick

Financial highlights

No figures could be read from the accounts filed on 19 Feb 2026. Companies House holds some filings only as a document image, which carries no tagged figures; the filing itself is on the register either way.

Documents for AIR COOL ENGINEERING (N.I.) LTD.

Need this one company on file? Buy the document on its own — no plan required.

Company extract£1.99

The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.

PDF Order
Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

PDF + CSV Order
Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

PDF Order

Filing history

Most recent filings

AA — accounts-with-accounts-type-total-exemption-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-full
accounts
MR04 — mortgage-satisfy-charge-full
mortgage
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-full
accounts
CS01 — confirmation-statement-with-no-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-small
accounts
CS01 — confirmation-statement-with-updates
confirmation-statement
AA — accounts-with-accounts-type-total-exemption-small
accounts
AR01 — annual-return-company-with-made-up-date-full-list-shareholders
annual-return
AA — accounts-with-accounts-type-total-exemption-small
accounts
AR01 — annual-return-company-with-made-up-date-full-list-shareholders
annual-return

Charges

0 outstanding · 1 satisfied

Legal mortgage presented for registration in northern ireland on 4 july 2006 and — persons entitled: Clydesdale Bank Public Limited Company
fully-satisfied

Data protection register

No entry found on the ICO register of fee payers under this name.

Not every organisation has to register — some are exempt. An absent entry is a question to ask, not a finding.

Get this company via API

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Read the API docs

Frequently asked questions

What is the company number of AIR COOL ENGINEERING (N.I.) LTD.?
According to the official registry, the company number of AIR COOL ENGINEERING (N.I.) LTD. is 03435101.
Where is AIR COOL ENGINEERING (N.I.) LTD. registered?
The registered office is Unit K, Astonbury Farm, Aston, Hertfordshire, SG2 7EG.
Who runs AIR COOL ENGINEERING (N.I.) LTD.?
MULLAN, Daniel Martin is listed among the officers of AIR COOL ENGINEERING (N.I.) LTD..
What is the SIC code of AIR COOL ENGINEERING (N.I.) LTD.?
The nature of business is recorded under SIC code 43220 — Plumbing, heat and air-conditioning installation, 96090 — Other service activities n.e.c..
Who controls AIR COOL ENGINEERING (N.I.) LTD.?
Mr Martin Mullan is recorded as a person with significant control, with ownership of shares 50 to 75 percent.
When are the next accounts of AIR COOL ENGINEERING (N.I.) LTD. due?
The next annual accounts are due by 28 February 2027, and the last accounts were made up to 31 May 2025.

About AIR COOL ENGINEERING (N.I.) LTD. (03435101)

AIR COOL ENGINEERING (N.I.) LTD. is a private limited company incorporated on 17 September 1997 and registered in the United Kingdom under company number 03435101. Its registered office is at Unit K, Astonbury Farm, Aston, Hertfordshire, SG2 7EG. The recorded nature of business is plumbing, heat and air-conditioning installation (SIC 43220). The company is currently active , with statutory accounts last made up to 31 May 2025. 5 active officers are on record , and the person with significant control is Mr Martin Mullan. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House , last refreshed 6 September 2026.

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