A1 BUILDING SERVICES (UK) LIMITED

🌳Matureactive
04429861 · ltd · incorporated 2002-05-02
Investment thesis
Established operating company — standard diligence applies, no dominant angle.
Why interesting: Live, filing, normal profile.
Why risky: No standout signals in either direction.
🔒Estimated value
—
Upgrade to see
Turnover
—
year to Apr 2025
Net worth
£55.0k
book net assets
Opportunity
80/100
Exceptional
🔔
Follow this company (free)
Email alerts on filings, charges, director changes, gazette notices. No account needed.

Unsubscribe any time from any email. GDPR-respectful.

🔒Generate AI memo →🔒Outreach pack →🔒Corporate story →📑 Reports →Sign in to watch
What this business does
Primary activity: Other specialised construction activities n.e.c.
Sector: Construction
Investor take
Pursue
Strong opportunity: asset-holding vehicle with exceptional profile and bankable structure.

Opportunity 80/100 (exceptional), bankability 75/100. Strong seller-intent signal (70/100, director aged 59). Share purchase looks the cleaner deal structure. Most likely exit: share sale to pe / searcher (65/100).

Data confidence

Overall: medium (78/100)

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

Company profile
address, 1 SIC codes, incorporation date
100
Financials
2 years of iXBRL accounts extracted (YoY deltas available) + narrative notes parsed
75
Lenders & charges
Confirmed no charges registered
85
Directors & officers
4 officers (3 active, 4 linked, 2 with DOB)
80
Ownership & PSC
2 active PSC(s) of 2 total, 2 with control declared
90
Director network
3 connected companies via shared directors
54
Filing history
57 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
80/100Exceptional
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
90
Good data coverage for analysis.

Signals from accounts

Derived from iXBRL accounts · accounting standard not declared
Positive net assets
Net assets £55,031
Cash YoY
+185%
Year on year

Key financials

2 years extracted from filed iXBRL accounts
Cash
£231k
↑ 185% YoY
Net Worth
£55k
↑ 35% YoY
Current Assets
£260k
↑ 63% YoY
Current Liabilities
—
£0£52k£104k£156k£208k£260kApr 2024Apr 2025

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · accounting standard unknown
Metric2025-04-302024-04-30
Total assets£68.4k£69.4k
Current assets£260.2k£159.6k
Cash£231.5k£81.3k
Debtors£27.9k£77.5k
Net assets£55.0k£40.8k

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

🔒Filing-note intelligence

2 signals 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 (22 events)Click to expand
  1. 2026-01-27
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2025-01-21
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  3. 2023-12-13
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  4. 2022-12-14
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  5. 2022-01-25
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2021-04-26
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  7. 2021-04-08
    📄
    change-to-a-person-with-significant-control
    persons-with-significant-control · PSC04
  8. 2020-01-27
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  9. 2019-01-28
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  10. 2017-07-25
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  11. 2017-01-16
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  12. 2016-05-09
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  13. 2015-12-16
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  14. 2015-05-13
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  15. 2015-05-13
    📄
    change-person-director-company-with-change-date
    officers · CH01
  16. 2015-05-13
    📄
    change-person-director-company-with-change-date
    officers · CH01
  17. 2005-06-01
    ➕
    MULLEN, Tracy Jane appointed
    director
  18. 2002-05-02
    🏢
    Company incorporated
    As A1 BUILDING SERVICES (UK) LIMITED
  19. 2002-05-02
    ➕
    MULLEN, Tracy Jane appointed
    secretary
  20. 2002-05-02
    ➕
    MULLEN, Ian Stuart appointed
    director
  21. 2002-05-02
    ➕
    SECRETARIAL APPOINTMENTS LIMITED appointed
    corporate-nominee-secretary
  22. 2002-05-02
    ➖
    SECRETARIAL APPOINTMENTS LIMITED resigned
    corporate-nominee-secretary

Owner dependency

84/100
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 24 years — deep operational knowledge concentrated in one person.
  • +Senior director age: Director aged approximately 59 — approaching natural succession window.
  • +Family involvement: Multiple officers share a surname — likely family business, which concentrates governance.

Succession & seller-readiness

76/100
Likely off-market candidate

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

SIGNALS
  • secondaryFounder aged 58+: Senior director is approximately 59. Early succession window.
  • secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.
  • primary20+ year tenure: Director in role 24 years. Very long tenure is a classic succession signal.
  • secondaryStable-but-static management: Company is 24 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
Mrs Tracy Jane Mullen
Individual · British · DOB 10/1972 · age 54
50–75%
25–50%50-75% shares · 50-75% voting03/05/2016
Mr Ian Stuart Mullen
Individual · British · DOB 07/1967 · age 59
25–50%
25–50%25-50% shares · 25-50% voting03/05/2016

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 →

Similar companies

Active · Construction · DT postcode area
CompanyEst. valueTurnoverNet worthStaffAgeOppDirector
28 ST JAMES’S ST LTD→
06664967 · est 2008 · no financials extracted
————17y——
3D STEEL SERVICES LTD→
10042655 · est 2016 · no financials extracted
————10y——
3SC GROUP SCAFFOLDING LIMITED→
16922453 · est 2025 · no financials extracted
———————
A & B HOME IMPROVEMENTS LIMITED→
04509387 · est 2002 · no financials extracted
————23y——
A AND R PROPERTY WESSEX LTD→
16821841 · est 2025 · no financials extracted
———————
A CLYNE LIMITED→
06595411 · est 2008 · no financials extracted
————17y——
A D K SCAFFOLDING LTD→
10649639 · est 2017 · no financials extracted
————9y——
A.COPP BUILDING SERVICES LTD→
08015847 · est 2012 · no financials extracted
————14y——
A1 PLUMBING & HEATING SERVICES (UK) LTD→
08329908 · est 2012 · no financials extracted
————13y——
A1 WINDOWS LIMITED→
06676904 · est 2008 · no financials extracted
————17y——
AB CONDUIT BUILDING LTD→
14490106 · est 2022 · no financials extracted
————3y——
ABBAS GAS SERVICES LIMITED→
04301209 · est 2001 · no financials extracted
————24y——
Peers ranked by estimated value, then turnover, then opportunity score.See all →
🔒Tailored diligence questions

6 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
Incorporated2002-05-02
Jurisdictionengland-wales
Primary SIC43999 — Other specialised construction activities n.e.c.

Registered office

18 High West Street
Dorchester
Dorset
DT1 1UW

Filing status

Accounts
Next due: 2027-01-31
Last made up to: 2025-04-30
Confirmation statement
Next due: 2026-05-16
Last: 2025-05-02

Officers (3 active · 1 resigned)

MULLEN, Tracy Jane→
secretary · appointed 2002-05-02
View their other companies + combined net worth →
Active
MULLEN, Ian Stuart→
director · ~59y · appointed 2002-05-02
View their other companies + combined net worth →
Active
MULLEN, Tracy Jane→
director · ~54y · appointed 2005-06-01
View their other companies + combined net worth →
Active
SECRETARIAL APPOINTMENTS LIMITED→
corporate-nominee-secretary · appointed 2002-05-02 · resigned 2002-05-02
Resigned

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

Recent filings (57 total)

accounts-with-accounts-type-total-exemption-full
accounts · AA
2026-01-27
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-05-07
accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-01-21
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-05-07
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-12-13
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-05-04
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-12-14
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-05-03
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-01-25
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-05-04
accounts-with-accounts-type-total-exemption-full
accounts · AA
2021-04-26
change-to-a-person-with-significant-control
persons-with-significant-control · PSC04
2021-04-08
confirmation-statement-with-no-updates
confirmation-statement · CS01
2020-05-04
accounts-with-accounts-type-total-exemption-full
accounts · AA
2020-01-27
confirmation-statement-with-updates
confirmation-statement · CS01
2019-05-03