Howden Joinery sustainability score: 52/100

·Construction / Real Estate·Runcorn, United Kingdom·Founded 1995·Last verified 20 September 2026
52
out of 100
Making progressPending Review+1 since last reviewMixed evidence· 12 src

Howden Joinery scores 52/100 (Making progress) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified September 2026.

That places Howden Joinery joint 70th of 699 companies scored, and 3rd of 20 in Construction / Real Estate.

Howden Joinery has delivered material absolute emissions reductions and achieved its 2030 Scope 3 target ahead of schedule, backed by SBTi validation. Critical gaps remain: water consumption is entirely unreported despite manufacturing operations; nature impact disclosure lacks quantification and TNFD alignment; and long-term net-zero pathways beyond 2030 lack independent validation.

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The calculation

How is Howden Joinery's SINK score calculated?

Same ten questions for every company. No private weighting.

SINK = (0.3 × Base + 0.7 × Performance) × Scale
Industry base impact
Construction / Real Estate sector ceiling.
35 / 100
Performance score
Sum of the 10 rubric questions, scored 0–10 each.
63 / 100
Raw score
Weighted average before scale penalty.
(0.3 × 35) + (0.7 × 63) = 54.6
Scale penalty
Multiplier based on absolute emissions volume — physics-first.
× 0.95
Final score
Rounded. Making progress.
52 / 100
The ten questions

What is Howden Joinery doing well, and where does it fall short?

Strongest on Controversies & Red Flags and Carbon Footprint — Operations (8/10, 7/10). Weakest on Water Impact and Nature & Biodiversity Impact (3/10, 5/10).

Where the evidence comes from

What evidence is Howden Joinery's score based on?

12 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.

[1]Self-reported
Howden Joinery Group Annual Report & Accounts 2024 — Sustainability Report

Our carbon emissions reporting 67 … Howden Joinery Group Plc Annual Report & Accounts 2024

2024
Q1Q3Q6Q9
View →
[2]Public record
Howden Joinery 2024 Half-Year Results — RNS Announcement

Net Zero plan approved by SBTi in January 2024

2024
Q1Q3
View →
[3]Self-reported
Howden Joinery Group Annual Report & Accounts 2025 — Sustainability Report

95% of our baseline total emissions are Scope 3

2025
Q2Q4Q8
View →
[4]Self-reported
Howden Joinery Group 2025 Annual Report

more than 100 key suppliers now providing verified data and decarbonisation plans

2025
Q2Q8
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[5]Third-party verified
Sustainability Reports — Howden Joinery 2023 Annual Report & Accounts

committing to a 42% reduction in Scope 1 and 2 emissions and a 25% reduction in Scope 3 emissions by 2030

2023
Q2Q8
View →
[6]Public record
Howdens Depots Switch to Green Renewable Energy

switching 96% of its depot network over to clean, renewable energy

Unknown
Q4
View →
[7]Self-reported
Howden Joinery Annual Report 2022 — Sustainability Report

Renewable Energy Guarantees or Origin (REGO). Each year, this will avoid around 10,000 tonnes of indirect carbon emissions

2022
Q4
View →
[8]Public record
Howden Joinery 2024 Full-Year Results — RNS Announcement

All Howdens' timber products are Forestry Stewardship Council (FSC) or … PEFC certified

2024
Q5Q6Q7
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[9]Self-reported
Howden Joinery Deforestation Policy

Prohibit the sourcing of timber from any biodiversity sensitive areas or of any CITES listed species

2025
Q5
View →
[10]Self-reported
Howden Joinery Waste Management

We achieved zero to landfill through the Recycling of Plastics, Aggregates, Wood and Cardboard

Ongoing
Q6
View →
[11]Self-reported
Howden Joinery 2023 Sustainability Matters

Total 2021 baseline emissions: 1.2m TCO2e (estimated)

2023
Q3Q6
View →
[12]Self-reported
Howden Joinery Annual Report 2024 — Sustainability Committee

The Committee will work with the Audit Committee on a CSRD implementation plan during 2025

2024
Q9
View →

If you believe a source has been misread or a newer version exists, submit a challenge.

Howden Joinery in context

How does Howden Joinery compare with other construction / real estate companies?

Where Howden Joinery sits among construction / real estate peers.

Among the 20 major construction / real estate brands we've scored, Howden Joinery sits 3rd of 20.

3/20
Howden Joinery's rank
40
Industry average
27
Industry low
60
Industry high
How this score has moved

Has Howden Joinery's score changed?

today

Score history begins 11 April 2026.

As Howden Joinery's score updates, the trajectory will appear here.

We're backfilling historical scores for FTSE 100 and S&P 100 companies over the coming weeks.

What's being contested

Has Howden Joinery's score been challenged?

This score is not currently being contested.

Every challenge is published. We'd rather be corrected than wrong — that's the whole point.

No challenges submitted yet. If you have evidence that contradicts this score, you can challenge any question above — cite a public source and we'll review it.

About Howden Joinery

Howden Joinery is a UK-based kitchen cabinet, joinery, and trade merchant. Founded in 1995 and headquartered in Runcorn, it operates over 750 depots across the UK and manufactures bespoke cabinetry. The company supplies trade professionals and operates a significant manufacturing footprint alongside retail distribution.

Founded
1995
Headquarters
Runcorn, United Kingdom
Employees
~12,000
Annual revenue
~£2.3B
Company website ↗
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