UK · Updated 2026 · How-to
Reclaimed Yellow Stock Bricks for Energy Retrofit in London: 2026 Sourcing Guide
London retrofits — from PAS 2035 refurbs to EnerPHit self-builds — rely on high-spec materials at cost. Surplus and clearance stock delivers the same certified spec at 40–60% less. Here's the 2026 sourcing map for Greater London.
Retrofit-relevant yellow stocks sources
- Merchant clearance on certified stock
- Manufacturer over-orders (PIR, mineral wool, plasterboard)
- Cancelled project surplus in your postcode
- Regional trade Facebook groups
Certification you must preserve
- BBA certificate on insulation and boards
- Batch/lot number for U-value calculations
- Fire rating on partition materials
- Datasheets for PAS 2035 evidence packs
2026 London pricing
| Grade | Typical price | Notes |
|---|---|---|
| Job-lot / bulk | £780 per 1,000 | Merchant clearance, palletised |
| Standard graded | £1,590 per 1,000 | Sorted, ready-to-fit stock |
| Heritage / premium | £2,400 per 1,000 | Character grade, hand-picked |
Collection and delivery inside London
Most London sellers hold stock inside N, E, SE and SW postcodes and offer same-day van hire from £120; hiab drops £180–£280. For loads over a tonne of yellow stocks, a hiab drop is usually more economical than multiple van runs.
Frequently asked questions
+Does surplus yellow stocks count for PAS 2035?
Yes when spec and certification are preserved. Keep batch numbers and BBA certificates with your evidence pack.
+How do I clean lime-mortar off?
Brick acid diluted 1:10, brushed on and rinsed. Never sandblast.
+Can I use surplus on ECO4-funded work?
Yes — ECO4 assessors care about spec and installation quality, not new-vs-surplus provenance.