MCCALLUM WATER HEATING LIMITED
💤Zombieactive
SC237954 · ltd · incorporated 2002-10-10
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 Dec 2025
Net worth
—
book net assets
Opportunity
80/100
Exceptional
What this business does
Primary activity: SIC 99999
Sector: Extraterritorial bodies
Investor take
PursueStrong opportunity: active trading company with exceptional profile and bankable structure.
Opportunity 80/100 (exceptional), bankability 75/100. Strong seller-intent signal (70/100, director aged 58). 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 (73/100).
Data confidence
Overall: medium (79/100)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 (2 active, 4 linked, 1 with DOB)
75
Ownership & PSC
1 active PSC(s) of 1 total, 1 with control declared
90
Director network
7 connected companies via shared directors
66
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.
Key financials
2 years extracted from filed iXBRL accountsCash
—
Net Worth
—
Current Assets
—
Current Liabilities
—
Hover to see exact values · click legend to toggle series
Financials
Extracted from Companies House accounts · FRS 102| Metric | 2025-12-31 | 2024-12-31 |
|---|
Amounts extracted automatically from iXBRL. Fields left blank were not reported or not mapped. Values in GBP unless stated.
Recent activity
Last 30 days
0
filings
Last 90 days
1
filing
- • 1 accounts
Last 180 days
1
filing
- • 1 accounts
Counts from Companies House filing history.
Corporate timeline (22 events)Click to expand
- 2026-01-30📄accounts-with-accounts-type-dormantaccounts · AA
- 2025-06-30📄accounts-with-accounts-type-dormantaccounts · AA
- 2024-04-17📄accounts-with-accounts-type-dormantaccounts · AA
- 2023-09-27📄change-person-director-company-with-change-dateofficers · CH01
- 2023-09-27📄change-person-secretary-company-with-change-dateofficers · CH03
- 2023-05-25📄accounts-with-accounts-type-dormantaccounts · AA
- 2022-01-24📄accounts-with-accounts-type-dormantaccounts · AA
- 2021-09-13📄accounts-with-accounts-type-dormantaccounts · AA
- 2020-08-05📄accounts-with-accounts-type-dormantaccounts · AA
- 2019-04-12📄accounts-with-accounts-type-dormantaccounts · AA
- 2018-05-03📄accounts-with-accounts-type-dormantaccounts · AA
- 2017-05-16📄accounts-with-accounts-type-dormantaccounts · AA
- 2016-06-13📄accounts-with-accounts-type-dormantaccounts · AA
- 2015-10-15📄annual-return-company-with-made-up-date-full-list-shareholdersannual-return · AR01
- 2015-02-04📄accounts-with-accounts-type-dormantaccounts · AA
- 2002-11-21➕MATHIESON, Ruth Elizabeth appointedsecretary
- 2002-11-21➕MATHIESON, Gordon Robert appointeddirector
- 2002-11-21➖HBJ SECRETARIAL LIMITED resignedcorporate-nominee-secretary
- 2002-11-21➖HENDERSON BOYD JACKSON LIMITED resignedcorporate-nominee-director
- 2002-10-10🏢Company incorporatedAs MCCALLUM WATER HEATING LIMITED
- 2002-10-10➕HBJ SECRETARIAL LIMITED appointedcorporate-nominee-secretary
- 2002-10-10➕HENDERSON BOYD JACKSON LIMITED appointedcorporate-nominee-director
Owner dependency
93/100
Critical — business is the founderThe business appears inseparable from the founder. Acquisition without a serious earn-out or meaningful transition period would likely destroy value.
FACTORS
- +Sole director: Only one active director — all governance concentrated on one person.
- +Long-tenure founder: Senior director has been in place 23 years — deep operational knowledge concentrated in one person.
- +Senior director age: Director aged approximately 58 — approaching natural succession window.
Succession & seller-readiness
85/100
Likely off-market candidateStrong acquirability signals converging. Worth approaching directly — this is how off-market deals start.
SIGNALS
- secondaryFounder aged 58+: Senior director is approximately 58. Early succession window.
- primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
- primary20+ year tenure: Director in role 23 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
cleanNo red flags detected from available public data. (This is not a clean bill of health — detailed accounts review still recommended.)
Shareholders & ownership
1 active beneficial owner · dominant holder ≥75%| Name | Shares | Voting rights | Nature of control | Notified |
|---|---|---|---|---|
Mr Gordon Robert Mathieson Individual · British · DOB 07/1968 · age 58 | 75–100% | 75–100% | 75-100% shares · 75-100% voting | 06/04/2016 |
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 →Similar companies
Active · Other · G postcode area| Company | Est. value | Turnover | Net worth | Staff | Age | Opp | Director |
|---|---|---|---|---|---|---|---|
| A. P. ANALYTICAL LLP→ SO303910 · est 2012 · no financials extracted | — | — | — | — | 13y | — | — |
| AGF DAVIES LIMITED→ SC747437 · est 2022 · no financials extracted | — | — | — | — | 3y | — | — |
| ALPHARD ENTERPRISE LP→ SL031099 · est 2017 · no financials extracted | — | — | — | — | 8y | — | — |
| AMOS THREE LLP→ SO301661 · est 2007 · no financials extracted | — | — | — | — | 18y | — | — |
| AMS INVESTMENTS (SCOTLAND) LLP→ SO301931 · est 2008 · no financials extracted | — | — | — | — | 17y | — | — |
| AMX FIRE PROTECTION LTD→ SC879766 · est 2026 · no financials extracted | — | — | — | — | — | — | — |
| ANCROFT ALLIANCE L.P.→ SL013111 · est 2013 · no financials extracted | — | — | — | — | 12y | — | — |
| ANDREW MCLENNAN LIMITED→ SC030398 · est 1954 · no financials extracted | — | — | — | — | 71y | — | — |
| ANKOR ENGINEERING INTERNATIONAL LP→ SL025125 · est 2016 · no financials extracted | — | — | — | — | 10y | — | — |
| ANNDORA MULTI CONCEPT LIMITED→ SC783899 · est 2023 · no financials extracted | — | — | — | — | 2y | — | — |
| ANTEX AERIALS LIMITED→ SC414171 · est 2012 · no financials extracted | — | — | — | — | 14y | — | — |
| ANTHEMIS 2022 II SPV FOUNDER LP→ SL035630 · est 2022 · no financials extracted | — | — | — | — | 4y | — | — |
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
Incorporated2002-10-10
Jurisdictionscotland
Primary SIC99999 — SIC 99999
Registered office
Glen Works
Paisley Road
Barrhead
G78 1ND
Filing status
Accounts
Next due: 2027-09-30
Last made up to: 2025-12-31
Confirmation statement
Next due: 2026-10-17
Last: 2025-10-03
Officers (2 active · 2 resigned)
MATHIESON, Ruth Elizabeth→
Activesecretary · appointed 2002-11-21
View their other companies + combined net worth →
MATHIESON, Gordon Robert→
Activedirector · ~58y · appointed 2002-11-21
View their other companies + combined net worth →
HBJ SECRETARIAL LIMITED→
Resignedcorporate-nominee-secretary · appointed 2002-10-10 · resigned 2002-11-21
HENDERSON BOYD JACKSON LIMITED→
Resignedcorporate-nominee-director · appointed 2002-10-10 · resigned 2002-11-21
Click a director name to see their full track record across all companies.
Recent filings (57 total)
accounts-with-accounts-type-dormant
accounts · AA
2026-01-30
confirmation-statement-with-updates
confirmation-statement · CS01
2025-10-07
accounts-with-accounts-type-dormant
accounts · AA
2025-06-30
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-10-10
accounts-with-accounts-type-dormant
accounts · AA
2024-04-17
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-10-10
change-person-director-company-with-change-date
officers · CH01
2023-09-27
change-person-secretary-company-with-change-date
officers · CH03
2023-09-27
accounts-with-accounts-type-dormant
accounts · AA
2023-05-25
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-10-10
accounts-with-accounts-type-dormant
accounts · AA
2022-01-24
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-10-12
accounts-with-accounts-type-dormant
accounts · AA
2021-09-13
confirmation-statement-with-no-updates
confirmation-statement · CS01
2020-10-13
accounts-with-accounts-type-dormant
accounts · AA
2020-08-05