3HEAT LIMITED
🏛️Establishedactive
12907838 · ltd · incorporated 2020-09-28
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
—
not disclosed
Net worth
—
book net assets
Opportunity
72/100
Strong
What this business does
Primary activity: Plumbing, heat and air-conditioning installation
Sector: Construction
Investor take
PursueStrong opportunity: active trading company with strong profile and bankable structure.
Opportunity 72/100 (strong), bankability 75/100. High owner-dependency — earn-out structure likely required for clean transition. Share purchase looks the cleaner deal structure. Most likely exit: strategic trade sale (63/100).
Data confidence
Overall: medium (56/100)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
No iXBRL financials extracted
0
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
2 connected companies via shared directors
51
Filing history
18 filings on record
85
Gazette notices
No matching gazette notices (standard for active companies)
60
Opportunity Score
72/100Strong
PassWatchWorth a lookStrongExceptional
Solid opportunity signal. Worth a dedicated memo and management meeting.
Business quality
65
Adequate — check latest filings for context.
Acquirability
55
Some acquirability indicators.
Risk profile
85
Few red flags.
Signal strength
90
Good data coverage for analysis.
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 (19 events)Click to expand
- 2025-10-02📄change-to-a-person-with-significant-controlpersons-with-significant-control · PSC04
- 2025-10-01📄change-person-director-company-with-change-dateofficers · CH01
- 2025-10-01📄change-to-a-person-with-significant-controlpersons-with-significant-control · PSC04
- 2025-09-29📄change-to-a-person-with-significant-controlpersons-with-significant-control · PSC04
- 2025-02-20📄accounts-with-accounts-type-micro-entityaccounts · AA
- 2023-11-23📄accounts-with-accounts-type-micro-entityaccounts · AA
- 2023-05-22📄accounts-with-accounts-type-micro-entityaccounts · AA
- 2022-06-16📄accounts-with-accounts-type-micro-entityaccounts · AA
- 2021-10-14📄appoint-person-director-company-with-name-dateofficers · AP01
- 2021-10-01➕MONAGHAN, Lisa appointeddirector
- 2021-09-27📄appoint-corporate-secretary-company-with-name-dateofficers · AP04
- 2021-09-27📄termination-secretary-company-with-name-termination-dateofficers · TM02
- 2021-09-14➕HARMONEA LTD appointedcorporate-secretary
- 2021-09-14➖MONAGHAN, Lisa resignedsecretary
- 2021-07-06📍change-registered-office-address-company-with-date-old-address-new-addressaddress · AD01
- 2020-09-28🏢Company incorporatedAs 3HEAT LIMITED
- 2020-09-28➕MONAGHAN, John Joseph appointeddirector
- 2020-09-28➕MONAGHAN, Lisa appointedsecretary
- 2020-09-28📄incorporation-companyincorporation · NEWINC
Owner dependency
66/100
High — earn-out structure requiredMaterial founder dependency. Consider a 2-3 year earn-out and build in a handover plan before completion.
FACTORS
- +Two-director setup: Only two active directors — typical of owner-managed SMEs but limits succession.
- +Family involvement: Multiple officers share a surname — likely family business, which concentrates governance.
Succession & seller-readiness
36/100
Weak signalLimited succession signal. Not a near-term off-market candidate.
SIGNALS
- secondaryTwo-director governance: Small-team governance. Succession depth is thin but not absent.
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
2 active beneficial owners| Name | Shares | Voting rights | Nature of control | Notified |
|---|---|---|---|---|
Mr John Joseph Monaghan Individual · British · DOB 04/1974 · age 52 | — | — | board controlboard control | 28/09/2020 |
Mrs Lisa Monaghan Individual · British · DOB 01/1971 · age 55 | — | — | sig. influencesignificant influence | 28/09/2020 |
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 · HP postcode area| Company | Est. value | Turnover | Net worth | Staff | Age | Opp | Director |
|---|---|---|---|---|---|---|---|
| 123UPVC LIMITED→ 06088813 · est 2007 · no financials extracted | — | — | — | — | 19y | — | — |
| 15/09 POWER ENGINEERING LIMITED→ 05637956 · est 2005 · no financials extracted | — | — | — | — | 20y | — | — |
| 1ST CHOICE BUILDING LTD→ 16508368 · est 2025 · no financials extracted | — | — | — | — | — | — | — |
| 1ST GLAZE DIRECT LIMITED→ 06759317 · est 2008 · no financials extracted | — | — | — | — | 17y | — | — |
| 3 EDUCATION LIMITED→ 07004914 · est 2009 · no financials extracted | — | — | — | — | 16y | — | — |
| 349 BUILDING & MAINTENANCE LIMITED→ 10845948 · est 2017 · no financials extracted | — | — | — | — | 8y | — | — |
| 360 LIVING LTD→ 06815219 · est 2009 · no financials extracted | — | — | — | — | 17y | — | — |
| 369 ESTATES GROUP LTD→ 16674920 · est 2025 · no financials extracted | — | — | — | — | — | — | — |
| 3M'S ROOFING LTD→ 16718780 · est 2025 · no financials extracted | — | — | — | — | — | — | — |
| 4D HOME SOLUTIONS LTD→ 13981232 · est 2022 · no financials extracted | — | — | — | — | 4y | — | — |
| 4D PLANNING SERVICES LTD→ 15835093 · est 2024 · no financials extracted | — | — | — | — | 1y | — | — |
| 4ORTY4 LTD→ 07865998 · est 2011 · no financials extracted | — | — | — | — | 14y | — | — |
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
Incorporated2020-09-28
Jurisdictionengland-wales
Primary SIC43220 — Plumbing, heat and air-conditioning installation
Registered office
3 Forge House
Summerleys Road
Princes Risborough
Bucks
HP27 9DT
England
Filing status
Accounts
Next due: 2026-06-30
Last made up to: 2024-09-30
Confirmation statement
Next due: 2026-10-11
Last: 2025-09-27
Officers (3 active · 1 resigned)
HARMONEA LTD→
Activecorporate-secretary · appointed 2021-09-14
View their other companies + combined net worth →
MONAGHAN, John Joseph→
Activedirector · ~52y · appointed 2020-09-28
View their other companies + combined net worth →
MONAGHAN, Lisa→
Activedirector · ~55y · appointed 2021-10-01
View their other companies + combined net worth →
MONAGHAN, Lisa→
Resignedsecretary · appointed 2020-09-28 · resigned 2021-09-14
Click a director name to see their full track record across all companies.
Recent filings (18 total)
change-to-a-person-with-significant-control
persons-with-significant-control · PSC04
2025-10-02
confirmation-statement-with-updates
confirmation-statement · CS01
2025-10-02
change-person-director-company-with-change-date
officers · CH01
2025-10-01
change-to-a-person-with-significant-control
persons-with-significant-control · PSC04
2025-10-01
change-to-a-person-with-significant-control
persons-with-significant-control · PSC04
2025-09-29
accounts-with-accounts-type-micro-entity
accounts · AA
2025-02-20
confirmation-statement-with-no-updates
confirmation-statement · CS01
2024-10-01
accounts-with-accounts-type-micro-entity
accounts · AA
2023-11-23
confirmation-statement-with-no-updates
confirmation-statement · CS01
2023-10-04
accounts-with-accounts-type-micro-entity
accounts · AA
2023-05-22
confirmation-statement-with-no-updates
confirmation-statement · CS01
2022-10-03
accounts-with-accounts-type-micro-entity
accounts · AA
2022-06-16
appoint-person-director-company-with-name-date
officers · AP01
2021-10-14
confirmation-statement-with-no-updates
confirmation-statement · CS01
2021-09-28
appoint-corporate-secretary-company-with-name-date
officers · AP04
2021-09-27