DUNCAN RIDDOCH PLUMBING & HEATING LTD.

💤Zombieactive
SC406206 · ltd · incorporated 2011-08-26
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 Aug 2024
Net worth
£761
book net assets
Opportunity
73/100
Strong
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What this business does
Primary activity: Plumbing, heat and air-conditioning installation
Sector: Construction
Investor take
Pursue
Strong opportunity: asset-holding vehicle with strong profile and bankable structure.

Opportunity 73/100 (strong), bankability 75/100. High owner-dependency — earn-out structure likely required for clean transition. Share purchase looks the cleaner deal structure. Biggest value-creation lever: Cash flow review and working-capital discipline. Cash down -69% YoY — forensic review of receivables, stock turns, and creditor days. Most likely exit: share sale to pe / searcher (58/100).

Data confidence

Overall: medium (76/100)

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, 2 with DOB)
80
Ownership & PSC
1 active PSC(s) of 1 total, 1 with control declared
90
Director network
Network not yet resolved
30
Filing history
33 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
73/100Strong
PassWatchWorth a lookStrongExceptional 

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

Business quality
70
Active, clean filings, stable charge profile.
Acquirability
50
Some acquirability indicators.
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 £761
Net assets shrinking
Down £386 YoY
Cash draining
Cash down 69% YoY
Cash YoY
-69%
Year on year

Key financials

2 years extracted from filed iXBRL accounts
Cash
£2k
↓ 69% YoY
Net Worth
£761
↓ 34% YoY
Current Assets
£50k
↓ 23% YoY
Current Liabilities
—
£0£13k£26k£39k£52k£65kAug 2023Aug 2024

Hover to see exact values · click legend to toggle series

Financials

Extracted from Companies House accounts · accounting standard unknown
Metric2024-08-312023-08-31
Total assets£4.7k£8.7k
Current assets£50.2k£65.5k
Cash£1.6k£5.0k
Debtors£44.6k£56.5k
Net assets£761£1.1k

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
0
filings
Counts from Companies House filing history.
Corporate timeline (22 events)Click to expand
  1. 2025-08-30
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  2. 2024-08-30
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  3. 2023-08-31
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  4. 2022-08-31
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  5. 2021-08-31
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  6. 2020-05-31
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  7. 2019-05-03
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  8. 2018-05-31
    📄
    accounts-with-accounts-type-total-exemption-full
    accounts · AA
  9. 2017-10-05
    📄
    change-to-a-person-with-significant-control
    persons-with-significant-control · PSC04
  10. 2017-05-25
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  11. 2016-05-31
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  12. 2015-10-30
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  13. 2015-05-25
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  14. 2014-10-09
    📄
    annual-return-company-with-made-up-date-full-list-shareholders
    annual-return · AR01
  15. 2014-05-29
    📄
    accounts-with-accounts-type-total-exemption-small
    accounts · AA
  16. 2011-08-26
    🏢
    Company incorporated
    As DUNCAN RIDDOCH PLUMBING & HEATING LTD.
  17. 2011-08-26
    ➕
    DUTHIE, Jacqueline appointed
    secretary
  18. 2011-08-26
    ➕
    RIDDOCH, Duncan appointed
    director
  19. 2011-08-26
    ➕
    BRIAN REID LTD. appointed
    corporate-secretary
  20. 2011-08-26
    ➖
    BRIAN REID LTD. resigned
    corporate-secretary
  21. 2011-08-26
    ➕
    MABBOTT, Stephen George appointed
    director
  22. 2011-08-26
    ➖
    MABBOTT, Stephen George resigned
    director

Owner dependency

90/100
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
  • +Sole director: Only one active director — all governance concentrated on one person.
  • +Founder name in company name: Company name contains director surname "RIDDOCH" — strong identity link between founder and business.

Succession & seller-readiness

58/100
Strong succession signal

Multiple signals suggest succession is on the horizon. Candidate for proactive outreach.

SIGNALS
  • primarySole active director: Only one director in control. No visible successor — buyers solve the succession problem.
  • secondary12+ year tenure: Director in role 15 years.
  • 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

1 active beneficial owner · dominant holder ≥75%
NameSharesVoting rightsNature of controlNotified
Mr Duncan Riddoch
Individual · British · DOB 04/1976 · age 50
75–100%
75–100%75-100% shares · 75-100% voting06/04/2016

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

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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
Incorporated2011-08-26
Jurisdictionscotland
Primary SIC43220 — Plumbing, heat and air-conditioning installation

Registered office

2 Charleston
St. Combs
Fraserburgh
AB43 8YT

Filing status

Accounts
Next due: 2026-05-31
Last made up to: 2024-08-31
Confirmation statement
Next due: 2026-09-07
Last: 2025-08-24

Officers (2 active · 2 resigned)

DUTHIE, Jacqueline→
secretary · appointed 2011-08-26
View their other companies + combined net worth →
Active
RIDDOCH, Duncan→
director · ~50y · appointed 2011-08-26
View their other companies + combined net worth →
Active
BRIAN REID LTD.→
corporate-secretary · appointed 2011-08-26 · resigned 2011-08-26
Resigned
MABBOTT, Stephen George→
director · ~76y · appointed 2011-08-26 · resigned 2011-08-26
Resigned

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

Recent filings (33 total)

accounts-with-accounts-type-total-exemption-full
accounts · AA
2025-08-30
confirmation-statement-with-no-updates
confirmation-statement · CS01
2025-08-28
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-09-03
accounts-with-accounts-type-total-exemption-full
accounts · AA
2024-08-30
accounts-with-accounts-type-total-exemption-full
accounts · AA
2023-08-31
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-08-30
accounts-with-accounts-type-total-exemption-full
accounts · AA
2022-08-31
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-08-24
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-08-31
accounts-with-accounts-type-total-exemption-full
accounts · AA
2021-08-31
confirmation-statement-with-no-updates
confirmation-statement · CS01
2020-08-24
accounts-with-accounts-type-total-exemption-full
accounts · AA
2020-05-31
confirmation-statement-with-no-updates
confirmation-statement · CS01
2019-08-28
accounts-with-accounts-type-total-exemption-full
accounts · AA
2019-05-03
confirmation-statement-with-no-updates
confirmation-statement · CS01
2018-09-03