AOS AIR CONDITIONING AND MECHANICAL SERVICES LIMITED

💤Zombieactive
13888304 · ltd · incorporated 2022-02-02
Investment thesis
Zombie company — trading but stalled; unlikely mover.
Why interesting: Quiet, steady; could be a succession or carve-out candidate with the right conversation.
Why risky: No growth signal; thin margin for error on price.
🔒Estimated value
Upgrade to see
Turnover
year to Sept 2024
Net worth
£100
book net assets
Opportunity
67/100
Strong
🔔
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What this business does
Primary activity: Other construction installation
Sector: Construction
ALSO REGISTERED FOR
  • 71129Other engineering activities
Investor take
Pursue
Asset-holding vehicle. Reasonable fundamentals — worth a memo before deciding.

Opportunity 67/100 (strong), bankability 70/100. High owner-dependency — earn-out structure likely required for clean transition. Share purchase looks the cleaner deal structure. Biggest value-creation lever: Broaden director team. Sole director creates succession risk and reduces buyer comfort. Appoint a second director or strong #2. Most likely exit: share sale to pe / searcher (58/100).

Data confidence

Overall: medium (72/100)

Adequate coverage. AI outputs are reliable for the sections scored high; verify the rest in diligence.

Company profile
address, 2 SIC codes, incorporation date
100
Financials
1 year of iXBRL accounts extracted (no YoY comparison) + narrative notes parsed
50
Lenders & charges
Confirmed no charges registered
85
Directors & officers
2 officers (1 active, 2 linked, 2 with DOB)
90
Ownership & PSC
1 active PSC(s) of 2 total, 2 with control declared
90
Director network
2 connected companies via shared directors
51
Filing history
21 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
67/100Strong
PassWatchWorth a lookStrongExceptional 

Solid opportunity signal. Worth a dedicated memo and management meeting.

Business quality
60
Adequate — check latest filings for context.
Acquirability
55
Some acquirability indicators.
Risk profile
74
Few red flags.
Signal strength
90
Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · FRS 102
Positive net assets
Net assets £100

Key financials

1 year extracted from filed iXBRL accounts
Cash
£100
Net Worth
£100
Current Assets
£100
Current Liabilities

Financials

Extracted from Companies House accounts · FRS 102
Metric2024-09-30
Total assets£100
Current assets£100
Cash£100
Net assets£100

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
4
filings
  • 1 accounts
  • 1 officers
  • 1 persons-with-significant-control
Last 180 days
4
filings
  • 1 accounts
  • 1 officers
  • 1 persons-with-significant-control
Counts from Companies House filing history.
Corporate timeline (21 events)Click to expand
  1. 2026-06-30
    📄
    change-account-reference-date-company-previous-shortened
    accounts · AA01
  2. 2026-05-28
    📄
    change-person-director-company-with-change-date
    officers · CH01
  3. 2026-05-27
    📄
    change-to-a-person-with-significant-control
    persons-with-significant-control · PSC04
  4. 2026-05-27
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  5. 2025-07-14
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  6. 2025-06-02
    📍
    change-registered-office-address-company-with-date-old-address-new-address
    address · AD01
  7. 2025-05-21
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  8. 2024-10-21
    ✏️
    certificate-change-of-name-company
    change-of-name · CERTNM
  9. 2024-10-20
    O'SULLIVAN, Thomas Anthony appointed
    director
  10. 2024-10-20
    HORAN, Timothy Peter resigned
    director
  11. 2024-10-20
    📄
    notification-of-a-person-with-significant-control
    persons-with-significant-control · PSC01
  12. 2024-10-20
    📄
    appoint-person-director-company-with-name-date
    officers · AP01
  13. 2024-10-20
    📄
    termination-director-company-with-name-termination-date
    officers · TM01
  14. 2024-10-20
    📄
    cessation-of-a-person-with-significant-control
    persons-with-significant-control · PSC07
  15. 2024-10-17
    ✏️
    certificate-change-of-name-company
    change-of-name · CERTNM
  16. 2024-10-16
    📄
    change-account-reference-date-company-previous-shortened
    accounts · AA01
  17. 2024-05-02
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  18. 2023-08-04
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  19. 2022-02-02
    🏢
    Company incorporated
    As AOS AIR CONDITIONING AND MECHANICAL SERVICES LIMITED
  20. 2022-02-02
    HORAN, Timothy Peter appointed
    director
  21. 2022-02-02
    📄
    incorporation-company
    incorporation · NEWINC

Owner dependency

75/100
High — earn-out structure required

Material founder dependency. Consider a 2-3 year earn-out and build in a handover plan before completion.

FACTORS
  • +Sole director: Only one active director — all governance concentrated on one person.

Succession & seller-readiness

45/100
Moderate signal

Some succession indicators present. Worth watching; approach if sector/strategy fits.

SIGNALS
  • primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.

Red flags

1 med · 1 low
Name changed 2 times
medium

Name changes can be benign (rebrand) but can also precede distress, phoenix activity, or buyer concealment.

Evidence: 2024-10-21: certificate-change-of-name-company; 2024-10-17: certificate-change-of-name-company

Multiple registered office changes
low

Multiple address changes in a short period can indicate operational instability or admin disorder.

Shareholders & ownership

1 active beneficial owner · dominant holder ≥75%
NameSharesVoting rightsNature of controlNotified
Mr Thomas Anthony O'Sullivan
Individual · British · DOB 05/1981 · age 45
75100%
75-100% shares20/10/2024
1 historic (ceased) PSC
  • Mr Timothy Peter Horanceased 20/10/2024· 75-100% shares · 75-100% voting · board control

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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Peers ranked by estimated value, then turnover, then opportunity score.See all →
🔒Tailored diligence questions

8 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
Incorporated2022-02-02
Jurisdictionengland-wales
Primary SIC43290 — Other construction installation

Registered office

16 The Courtyard Gorsey Lane
Birmingham
Warwickshire
B46 1JA
England

Filing status

Accounts
Next due: 2026-09-30
Last made up to: 2024-09-30
Confirmation statement
Next due: 2026-11-04
Last: 2025-10-21

Officers (1 active · 1 resigned)

O'SULLIVAN, Thomas Anthony
director · ~45y · appointed 2024-10-20
View their other companies + combined net worth →
Active
HORAN, Timothy Peter
director · ~51y · appointed 2022-02-02 · resigned 2024-10-20
Resigned

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

Recent filings (21 total)

change-account-reference-date-company-previous-shortened
accounts · AA01
2026-06-30
change-person-director-company-with-change-date
officers · CH01
2026-05-28
change-to-a-person-with-significant-control
persons-with-significant-control · PSC04
2026-05-27
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2026-05-27
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-11-14
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2025-07-14
change-registered-office-address-company-with-date-old-address-new-address
address · AD01
2025-06-02
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-05-21
certificate-change-of-name-company
change-of-name · CERTNM
2024-10-21
confirmation-statement-with-updates
confirmation-statement · CS01
2024-10-21
notification-of-a-person-with-significant-control
persons-with-significant-control · PSC01
2024-10-20
appoint-person-director-company-with-name-date
officers · AP01
2024-10-20
termination-director-company-with-name-termination-date
officers · TM01
2024-10-20
cessation-of-a-person-with-significant-control
persons-with-significant-control · PSC07
2024-10-20
certificate-change-of-name-company
change-of-name · CERTNM
2024-10-17