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  4. J.C. Watson Mechanical Limited
JW

J.C. Watson Mechanical Limited

Construction work · Barnet
Large

J.C. Watson Mechanical Limited specializes in commercial air conditioning, mechanical services, refrigeration, and ventilation solutions. They offer tailored services for various industries, including healthcare.

jcwatson.co.uk ↗

Summary from the supplier’s website — unverified

Compare peers
Awarded
£7.0m
Live
4
Buyers
7
12m
£1.2m
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts4 / 42
  • Top buyers7
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — J.C. Watson Mechanical LimitedUpdated 20 Jul 2026

At a glance · for buyers and watchdogs

J.C. Watson Mechanical Limited has won £7.0m across 7 public-sector buyers, with 4 live contracts. No active Companies House risk flags.

Why: top buyer The East and North Hertfordshire NHS Trust ("ENHT") at 80% · 72% in Construction work · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
ActiveCompany status
4 of 42Live contracts
80%Top-buyer concentration
72%Category exposure
0Contract modifications
If you're a buyer:CapabilitiesReferencesKPIComplianceWatchdog?FlagsModificationsConcentrationNews

Social value

Commitments mapped to the Government Social Value Model themes.

⚑ Self-reported
—

No social-value commitments yet

Jobs, skills, environmental, inequality and community commitments appear here once a claimed supplier attributes them to awarded contracts, or once we detect them on the supplier’s website.

ESG & policies vault · 0/5

Key governance & sustainability policies. Published documents link out; missing ones are greyed.

↔ Cross-checked
Net-zero planNot provided✓
Modern slavery statementNot provided✓
EDI policyNot provided✓
Anti-briberyNot provided✓
Data protectionNot provided✓

Capabilities

What this supplier does, where they sit, who they sell to.

◐ From website & notices
Sectors served · 1/8
Central government✓
Local government✓
NHS & health✓
Housing✓
Utilities & energy✓
Financial services✓
Education✓
Defence✓
Services · 7
Commercial Air Conditioning ServicesExpert cooling solutions for businesses, tailored to your commercial needs. ↗VRF & VRV Air Conditioning SystemEfficient climate control with Variable Refrigerant Flow & Volume systems. ↗Fire Stopping ServicesCommercial Water ChillersPipework InstallationPipework & Valves installation services. ↗Refrigeration InstallationCommercial refrigeration installation services. ↗Ventilation ServicesCommercial ventilation services including air handling unit refurbishment. ↗

Extracted automatically from jcwatson.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

Case studies

Delivery stories the supplier has published, with sector and outcome.

⚑ Self-reported
—

No case studies yet

Once a claimed supplier publishes delivery stories — the buyer, the sector, what was delivered and the outcome — they appear here.

Buyer references

Named public-sector contacts who have agreed to act as a reference.

✓ Confirmed by buyer
—

No buyer references yet

Public-sector buyers can confirm they'll act as a reference for this supplier. Confirmed references — with the contract they relate to — show here.

Accreditations & memberships · 3

Credentials listed on the supplier’s website. Not yet checked against issuer registers.

◐ From supplier website
Core credentials · 3/6
Cyber EssentialsNot evidenced✓
Cyber Essentials PlusNot evidenced✓
ISO 27001 — Information securityNot evidenced✓
ISO 9001 — QualityISO✓
ISO 14001 — EnvironmentalISO✓
ISO 45001 — Health & safetyISO✓

Extracted automatically from jcwatson.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

KPI performance

Delivery, budget and satisfaction scores reported quarterly by buyers.

✓ Verified
84

No verified KPI scores yet

Once buyers report contract KPIs — delivery on time, on budget, satisfaction, adoption and accessibility — a weighted grade and breakdown appear here.

Contracts · 4 live · 38 historic

Pulled from Contracts Finder & Find a Tender. Most recent first.

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
ENHT - Brachytherapy AHU Installation
The East and North Hertfordshire NHS Trust ("ENHT")4533100005 Feb 2026£215k2 moClosed
ENHT - Replacement BlueBox Chiller; Lister A&E
The East and North Hertfordshire NHS Trust ("ENHT")4533100029 Jan 2026£175k2 moClosed
ENHT - Brachytherapy Ventilations works
The East and North Hertfordshire NHS Trust ("ENHT")4533120027 Jan 2026£55k2 moClosed
ENHT - MRI Chiller Cooling Support Capacity Installation
The East and North Hertfordshire NHS Trust ("ENHT")4251230013 Nov 2025£89k5 moClosed
ENHT - AHU Service & Maintenance
The East and North Hertfordshire NHS Trust ("ENHT")4533100001 Nov 2025£50k12 moLive
ENHT - BMS/Control Works For Fan Upgrade Project At Lister Hospital
The East and North Hertfordshire NHS Trust ("ENHT")4521000026 Sept 2025£150k6 moClosed
ENHT - MVCC Refrigeration & Air Conditioning Maintenance Contract
The East and North Hertfordshire NHS Trust ("ENHT")4533100001 Sept 2025£45k12 moLive
ENHT - Decontamination Works for Renal Modular Unit
The East and North Hertfordshire NHS Trust ("ENHT")9072220013 Aug 2025£240k8 moClosed
ENHT - Ventilation Works - Renal Modular
The East and North Hertfordshire NHS Trust ("ENHT")4533100029 Jul 2025£49k8 moClosed
ENHT - Fire Remediation Works - Renal Modular
The East and North Hertfordshire NHS Trust ("ENHT")4545310029 Jul 2025£49k8 moClosed
Total live value £95k · mean award £167k1–10 of 42

Top buyers · 7 buyers · top 3 = 91%

Share of awarded value. Concentration fires above 40% for any single buyer.

✓ From notices
1
The East and North Hertfordshire NHS Trust ("ENHT")
27 contracts
80%
since 2023
2
The Princess Alexandra Hospital NHS Trust
3 contracts
6%
since 2022
3
UK Research & Innovation
2 contracts
5%
since 2022
4
Board of Trustees of the Royal Botanic Gardens Kew
2 contracts
5%
since 2020
5
West Hertfordshire Teaching Hospitals NHS Trust
6 contracts
4%
since 2023
6
Kent Community Health NHS Foundation Trust
1 contract
0%
since 2022
7
NHS SHARED BUSINESS SERVICES LIMITED
1 contract
0%

Category mix

CPV-division share of last-12m awarded value. Single-category exposure: 72%.

✓ From notices
Construction work45
72%
Sewage & refuse90
20%
Industrial machinery42
8%
⚠ Concentration: 72% of recent awarded value sits in a single CPV division. A category-specific downturn would materially affect revenue.

Geography

Distribution of awarded value by buyer region.

✓ From notices
UK · schematic only
Eastern9 contracts
50%
South West2 contracts
25%
South East3 contracts
25%
London1 contract
0%
Region resolved for 20% of awarded value (by buyer postcode); the remainder lacks a usable address.

Peers

Suppliers with overlapping CPVs & buyers (last 24m). J.C. Watson Mechanical Limited highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
JS
John Sisk and Son Ltd
No£67.8m1
LF
LIVGREEN FUTURES LIMITED
No£25.0m1
MA
Mulalley and Company Ltd
No£13.9m1
BC
Barnes Construction
No£3.9m1
AM
Ameresco Limited
No£3.4m7
JW
J.C. Watson Mechanical Limited
No£1.2m—
Compare peers →

Red flags · 0 active

Automated scan of Companies House status, charges and insolvency records.

✓ Verified
✓ Clean. No active risk signals from Companies House status, charges or insolvency records.

Compliance scorecard

Derived from Companies House filings — not a full supplier-assurance check.

↔ Cross-checked
Trading status
Active
Live at Companies House
Annual accounts
Up to date
Last made up to 30 Nov 2025
Confirmation statement
Up to date
Next due 29 Oct 2026
Outstanding charges
0
No charges registered
Insolvency history
None
No insolvency cases registered
Certifications (ISO, Cyber Essentials, Living Wage, B-Corp, modern-slavery) are supplier self-reported and appear once a claimed profile adds them.

Modifications

Variations to awarded contracts logged under Procurement Act 2023 s.74.

✓ From notices
±

No modifications recorded

No published contract variations for this supplier. Modification notices appear here as they are issued under the Procurement Act 2023.

News mentions

UK trade press & nationals, matched to this supplier.

◰

No news mentions found

We haven't matched any recent UK press coverage to this supplier. Mentions appear here automatically as they're published.

Companies House

Live sync — registered details, directors, PSC and SIC codes.

✓ Live sync

Registered details

Company no.
09828997
Status
Active
Type
Private limited
Incorporated
16 Oct 2015
Reg. office
42 Lytton Road, Barnet, EN5 5BY
SIC codes
96090
Last accounts
30 Nov 2025
Next accounts due
31 Aug 2027

Directors & PSC

  • LYMAN, John — director
    Appointed 16 Oct 2015
  • J.C. Watson Holdings Limited — person with significant control
    ownership of shares 75 to 100 percent · voting rights 75 to 100 percent · right to appoint and remove directors

Financial

Filed accounts from Companies House.

↔ From Cos House
£

No financial filings on record

Turnover, profit and headcount appear here once audited or micro-entity accounts are filed at Companies House.

Org tree

Group structure and ownership.

↔ From Cos House
J.C. WATSON MECHANICAL LIMITED
09828997 · this company

Independent. No parent company or subsidiaries recorded at Companies House for this entity.