B&Q is a UK home improvement and DIY retailer founded in 1976, headquartered in Eastleigh.
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B&Q reports strong operational decarbonization (66% since 2016/17) and near-complete renewable electricity (99%), but Scope 3 emissions—99.5% of its footprint—rose 6% last year despite intensity gains. Water impact is entirely unreported. New absolute Scope 3 targets (46% by 2030) shift away from greenwashing metric frames, but delivery remains unproven.
B&Q scores 47/100 (Making progress) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified May 2026.
That places B&Q joint 217th of 847 companies scored, and joint 6th of 48 in Retail (non-fashion).
Where B&Q sits among retail (non-fashion) peers.
Among the 48 major retail (non-fashion) brands we've scored, B&Q is tied =6th of 48, with 1 other.
Its three lowest-scoring questions, and what the evidence didn't show.
No water consumption data, footprint assessment, or management strategy found for B&Q or Kingfisher.
Scope 3 intensity improved 38.7% per £m turnover but absolute emissions rose 6% most recent year and fell only 30.4% from baseline.
No waste tonnage, recycling rates, or circular economy outcomes quantified.
A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.
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Get in touch →Strongest on Energy Source and Controversies & Red Flags (8/10, 8/10). Weakest on Water Impact and Emissions Trajectory (2/10, 5/10).
The 3 companies in the sector scoring nearest above B&Q.
Pets at Home has credible operational carbon targets (SBTi-validated, 42% Scope 1+2 reduction by 2030) and has achieved a genuine 44% absolute reduction since 2016 while growing sales 87%.
See the breakdown →Co-op has delivered measurable absolute emissions cuts across Scope 1+2 (59%) and met climate targets early, backed by SBTi validation.
See the breakdown →John Lewis Partnership has credible near-term climate targets and comprehensive renewable energy procurement, but Scope 3 emissions accounting remains incomplete—the company admits supply chain carbon quantification is 'an emerging discipline'.
See the breakdown →The formula and all 16 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale16 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
8 of 16 sources are independent of the company.
If you believe a source has been misread or a newer version exists, submit a challenge.
B&Q is a UK home improvement and DIY retailer founded in 1976, headquartered in Eastleigh. Operating ~370 stores across the UK and Ireland, it sells building materials, tools, garden products, and home décor. The company is owned by Kingfisher plc and competes in the non-fashion retail sector alongside Wickes and Screwfix.
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