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CORNERSTONE (EAST ANGLIA) LTD

Construction work · Harleston
SME

Cornerstone (East Anglia) Limited is a main contractor specializing in the installation of energy efficiency measures and façade solutions. They work predominantly on domestic properties, providing services such as insulation and renewable energy solutions.

cornerstonelimited.co.uk ↗

Summary from the supplier’s website — unverified

Compare peers
Awarded
£66.3m
Live
13
Buyers
16
12m
£20.0m
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts13 / 26
  • Top buyers16
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — CORNERSTONE (EAST ANGLIA) LTDUpdated 06 Jul 2026

At a glance · for buyers and watchdogs

CORNERSTONE (EAST ANGLIA) LTD has won £66.3m across 16 public-sector buyers, with 13 live contracts. No active Companies House risk flags.

Why: top buyer PROSPER at 44% · 100% in Construction work · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
ActiveCompany status
13 of 26Live contracts
44%Top-buyer concentration
100%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 · 6
External Wall InsulationHigh Rise FacadesPark Home InsulationCavity Wall InsulationLoft InsulationRenewables

Extracted automatically from cornerstonelimited.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

Independently issued. Verification dates cross-checked against issuer registers.

↔ Cross-checked
—

No accreditations recorded

B-Corp, ISO, Cyber Essentials, Living Wage and similar credentials appear here once added by a claimed supplier and cross-checked against the issuing register.

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 · 13 live · 13 historic

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

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
EEM0046 Retrofit, Insulation and Associated Works Framework
EFFICIENCY EAST MIDLANDS LIMITED—06 Apr 2026—4 yrspending
Warm Homes Suffolk Energy Efficiency and Renewables Retrofit Framework
Suffolk County Council—12 Jan 2026—4 yrspending
Energy Efficiency Retrofit Installation Contractors and Consultants and associated services
Flagship Housing Limited4500000018 Feb 2030£20.0m1 moLive
*Decarbonisation & Investment Works Framework [DN762948]
PROSPER0930000023 Jun 2025£29.4m4 yrsLive
Park Homes for HUG2.
Cambridgeshire and Peterborough Combined Authority4500000013 Sept 2023£4.4m1.6 yrsClosed
GB-Norwich: External Wall Insulation
Flagship Housing Group4532000001 Jun 2023£4.4m2 yrsClosed
GSENZH - Park Homes for Sustainable Warmth
Cambridgeshire and Peterborough Combined Authority7100000001 Sept 2022£511k7 moClosed
LAD 2 External Wall Insulation (Hinkley & Bosworth) DPS5033
Hinckley and Bosworth Borough Council4521100031 Jan 2022£540k6 moClosed
Contract for the installation of external wall insulation (EWI) on park homes at Shepherds Grove Park Stanton, Bury St. Edmunds
West Suffolk Council4400000015 Mar 2021£912k7 moClosed
Energy Action Suffolk - Energy Efficiency Works Framework - AWARD
Suffolk Sourcing4531500001 Jan 2021—4 yrsClosed
Total live value £49.4m · mean award £2.6m1–10 of 26

Top buyers · 16 buyers · top 3 = 82%

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

✓ From notices
1
PROSPER
2 contracts
44%
since 2025
2
Flagship Housing Limited
2 contracts
30%
since 2025
3
Cambridgeshire and Peterborough Combined Authority
2 contracts
7%
since 2022
4
Flagship Housing Group
3 contracts
7%
since 2020
5
South Cambridgeshire District Council
1 contract
7%
since 2016
6
West Suffolk Council
1 contract
1%
since 2021
7
Central Bedfordshire Council
1 contract
1%
8
Hinckley and Bosworth Borough Council
2 contracts
1%
since 2022
9
EEM Limited
1 contract
1%
since 2017
10
SE Shared Services
1 contract
0%
since 2017

Category mix

CPV-division share of last-12m awarded value. Single-category exposure: 100%.

✓ From notices
Construction work45
100%
⚠ Concentration: 100% 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
Eastern14 contracts
55%
North East2 contracts
45%
East Midlands6 contracts
1%
South East1 contract
0%

Peers

Suppliers with overlapping CPVs & buyers (last 24m). CORNERSTONE (EAST ANGLIA) LTD highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
LP
LOVELL PARTNERSHIPS LIMITED
No£140.0m1
JS
John Sisk and Son Ltd
No£67.8m1
KC
Kier Construction
Yes£35.4m2
WD
Willmott Dixon Construction Limited
No£28.1m2
C(
CORNERSTONE (EAST ANGLIA) LTD
Yes£20.0m—
CC
Clegg Construction Limited
No£18.8m2
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 31 Jan 2025
Confirmation statement
Due in -57d
Next due 14 May 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.
05117129
Status
Active
Type
Private limited
Incorporated
30 Apr 2004
Reg. office
Unit 2 - 4 Fuller Road, Harleston, IP20 9EA
SIC codes
43999
Last accounts
31 Jan 2025
Next accounts due
31 Oct 2026

Directors & PSC

  • EDEN, Thomas John William — secretary
    Appointed 30 Apr 2004
  • EDEN, Thomas John William — director
    Appointed 30 Apr 2004
  • MULLIN, Adam Laurence — director
    Appointed 30 Apr 2004
  • Mr Thomas John William Eden — person with significant control
    ownership of shares 25 to 50 percent
  • Mr Adam Laurence Mullin — person with significant control
    ownership of shares 25 to 50 percent

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
CORNERSTONE (EAST ANGLIA) LTD
05117129 · this company

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