AIR COOL ENGINEERING (N.I.) LTD.

🌳Matureactive
03435101 · ltd · incorporated 1997-09-17
Investment thesis
Well-run mature business — low negotiation leverage; premium likely.
Why interesting: Textbook target; clean filings, stable trading.
Why risky: No pressure on seller; any deal likely at full price.
Opportunity decay
approaching window · 12-months
Approaching a transaction window — refinance or sale event plausible in the next 12 months.
  • · Oldest live charge 20.0y old — refinance window within 12 months
🔒Estimated value
—
Upgrade to see
Turnover
—
year to May 2025
Net worth
—
book net assets
Opportunity
82/100
Exceptional
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What this business does
Primary activity: Plumbing, heat and air-conditioning installation
Sector: Construction
ALSO REGISTERED FOR
  • 96090Other service activities n.e.c.
Investor take
Pursue
Active trading company with a 71-year-old founder — textbook succession opportunity.

Opportunity 82/100 (exceptional), bankability 85/100. Strong seller-intent signal (83/100, director aged 71). Share purchase looks the cleaner deal structure. Most likely exit: share sale to pe / searcher (65/100).

🏦

Refinance opportunity

1 live charge · oldest 20.0y

85/100
ready

Refinance conversation should be productive — structure clean and timing right.

  • · Oldest live charge is 20.0 years old — likely at or near maturity.
  • · Single lender — cleanest path to refinance.
  • · Legal-friction score 15/100 — clean.

Data confidence

Overall: high (80/100)

Strong data coverage across all sections. AI outputs should be trusted with minimal caveats.

Company profile
address, 2 SIC codes, incorporation date
100
Financials
2 years of iXBRL accounts extracted (YoY deltas available) + narrative notes parsed
75
Lenders & charges
1 charges (1/1 with lender, 1/1 with type)
90
Directors & officers
5 officers (3 active, 5 linked, 2 with DOB)
78
Ownership & PSC
2 active PSC(s) of 2 total, 2 with control declared
90
Director network
7 connected companies via shared directors
66
Filing history
69 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
82/100Exceptional
PassWatchWorth a lookStrongExceptional 

Strong composite across quality, acquirability, and risk. High-priority target — progress to serious diligence.

Business quality
70
Active, clean filings, stable charge profile.
Acquirability
80
Strong succession / seller-readiness signals.
Risk profile
85
Few red flags.
Signal strength
100
Good data coverage for analysis.

Key financials

2 years extracted from filed iXBRL accounts
Cash
—
Net Worth
—
Current Assets
—
Current Liabilities
—
£0£0£0£0£0£0May 2024May 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · FRS 102
Metric2025-05-312024-05-31
Average employees28002500

Amounts extracted automatically from iXBRL. Fields left blank were not reported or not mapped. Values in GBP unless stated.

🔒Filing-note intelligence

1 signal detected in this company's narrative notes — going-concern language, audit opinion, contingent liabilities, related-party transactions.

Available from the Pro tier upwards.

See pricing →

Recent activity

Last 30 days
0
filings
Last 90 days
0
filings
Last 180 days
1
filing
  • • 1 accounts
Counts from Companies House filing history.
Corporate timeline (25 events)Click to expand
  1. 2026-02-19
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2025-02-27
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  3. 2024-02-29
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  4. 2023-03-31
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  5. 2022-03-02
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2021-05-28
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  7. 2020-02-28
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  8. 2020-01-07
    📄
    mortgage-satisfy-charge-full
    mortgage · MR04
  9. 2020-01-07
    🔓
    Charge satisfied #1
  10. 2019-02-27
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  11. 2018-03-08
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  12. 2017-02-24
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  13. 2016-02-29
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  14. 2015-09-25
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  15. 2015-02-26
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  16. 2014-09-29
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  17. 2006-06-30
    🔒
    Charge registered #1
    Lender: Clydesdale Bank Public Limited Company
  18. 2000-09-29
    ➕
    MULLAN, Daniel Martin appointed
    secretary
  19. 2000-09-29
    ➕
    MULLAN, Daniel Martin appointed
    director
  20. 2000-09-29
    ➖
    DOORY, Jaqueline resigned
    secretary
  21. 1997-09-17
    🏢
    Company incorporated
    As AIR COOL ENGINEERING (N.I.) LTD.
  22. 1997-09-17
    ➕
    MCLEOD, Kevin Warwick appointed
    director
  23. 1997-09-17
    ➕
    DOORY, Jaqueline appointed
    secretary
  24. 1997-09-17
    ➕
    CHETTLEBURGH INTERNATIONAL LIMITED appointed
    corporate-nominee-secretary
  25. 1997-09-17
    ➖
    CHETTLEBURGH INTERNATIONAL LIMITED resigned
    corporate-nominee-secretary

Owner dependency

83/100
Critical — business is the founder

The business appears inseparable from the founder. Acquisition without a serious earn-out or meaningful transition period would likely destroy value.

FACTORS
  • +Two-director setup: Only two active directors — typical of owner-managed SMEs but limits succession.
  • +Long-tenure founder: Senior director has been in place 29 years — deep operational knowledge concentrated in one person.
  • +Founder age: Director aged approximately 71 — succession pressure is live.

Succession & seller-readiness

96/100
Likely off-market candidate

Strong acquirability signals converging. Worth approaching directly — this is how off-market deals start.

SIGNALS
  • primaryFounder aged 70+: Senior director is approximately 71 years old. Natural succession window is now.
  • secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.
  • primary20+ year tenure: Director in role 29 years. Very long tenure is a classic succession signal.
  • secondaryStable-but-static management: Company is 29 years old and no new directors in the last 3 years — succession not yet being planned internally.
  • supportingClean filings + long tenure: Disciplined long-tenure operator — classic lifestyle-business pattern that often sells quietly.

Red flags

clean
No red flags detected from available public data. (This is not a clean bill of health — detailed accounts review still recommended.)

Shareholders & ownership

2 active beneficial owners
NameSharesVoting rightsNature of controlNotified
Mr Martin Mullan
Individual · United Kingdom · DOB 06/1966 · age 60
50–75%
—50-75% shares06/04/2016
Mr Kevin Mcleod
Individual · New Zealander · DOB 07/1955 · age 71
25–50%
—25-50% shares06/04/2016

From Companies House Persons with Significant Control filings. Share ranges are banded per the public PSC regime.

🔒Co-director network graph

Radial SVG graph showing every company connected via shared directors, colour-coded by status.

Available from the Pro tier upwards.

See pricing →

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AIDAN MCCLELLAND LIMITED→
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AIR COOL ENGINEERING SYSTEMS LTD→
05097084 · est 2004 · no financials extracted
————22y——
Peers ranked by estimated value, then turnover, then opportunity score.See all →
🔒Tailored diligence questions

7 specific questions generated from this company's actual signals — liquidity, leverage, director age, charge count, red flags, age-of-company.

Available from the Pro tier upwards.

See pricing →
🔒Advanced scoring suite

Exit-route ranking, improvement thesis, quiet-distress detector, covenant-pressure proxy, extraction monitor, approaching triggers, ownership drift, local cluster, value trap, debt capacity, archetype classification — 48+ scoring modules.

Available from the Pro tier upwards.

See pricing →

Company details

Statusactive
Typeltd
Incorporated1997-09-17
Jurisdictionengland-wales
Primary SIC43220 — Plumbing, heat and air-conditioning installation

Registered office

Unit K
Astonbury Farm
Aston
Hertfordshire
SG2 7EG

Filing status

Accounts
Next due: 2027-02-28
Last made up to: 2025-05-31
Confirmation statement
Next due: 2026-10-01
Last: 2025-09-17

Officers (3 active · 2 resigned)

MULLAN, Daniel Martin→
secretary · appointed 2000-09-29
View their other companies + combined net worth →
Active
MCLEOD, Kevin Warwick→
director · ~71y · appointed 1997-09-17
View their other companies + combined net worth →
Active
MULLAN, Daniel Martin→
director · ~60y · appointed 2000-09-29
View their other companies + combined net worth →
Active
DOORY, Jaqueline→
secretary · appointed 1997-09-17 · resigned 2000-09-29
Resigned
CHETTLEBURGH INTERNATIONAL LIMITED→
corporate-nominee-secretary · appointed 1997-09-17 · resigned 1997-09-17
Resigned

Click a director name to see their full track record across all companies.

Mortgages & charges

1
Total charges
0
Outstanding
0
Active lenders
Status:Lender:1 of 1 shown
TypeProperties
satisfied
Virgin Money
Clydesdale Bank Public Limited Company
Legal mortgage presented for registration in northern ireland on 4 july 2006 and1 property30/06/200607/01/2020

Recent filings (69 total)

accounts-with-accounts-type-total-exemption-full
accounts · AA
2026-02-19
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-09-29
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-02-27
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-09-18
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-02-29
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-09-28
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-03-31
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-09-27
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-03-02
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-09-23
accounts-with-accounts-type-total-exemption-full
accounts · AA
2021-05-28
confirmation-statement-with-no-updates
confirmation-statement · CS01
2020-10-12
accounts-with-accounts-type-total-exemption-full
accounts · AA
2020-02-28
mortgage-satisfy-charge-full
mortgage · MR04
2020-01-07
confirmation-statement-with-no-updates
confirmation-statement · CS01
2019-10-03