The problem
"We're already paying to get rid of debris. The metal in it feels like an afterthought"
"Metal comes off every teardown, but it usually just goes in the same skip as everything else because separating it feels like one more thing to manage on a job that's already tight on time."
That instinct is understandable, but it skips a real number. Separating metal doesn't just add a sale, it also removes a cost you were already paying.
The math behind a teardown
Two savings, not one
Tipping fees are commonly cited around $62 a tonne, with real regional variation pushing that considerably higher in some markets. Every tonne of structural steel or light iron separated and sold instead of landfilled is a tonne not costing that fee, on top of whatever the metal itself is worth. Industry estimates put the disposal-cost reduction from on-site metal separation at roughly 20 to 40 percent, depending on the job. Treat both figures as general benchmarks, not a quote for your specific site.
What actually comes off a typical teardown
Structural steel
Beams, girders, columns, and channels from the frame. Typically the single heaviest and most consistent material by weight on any structural teardown.
HMS 1 and 2
Heavy melting steel from general teardown work, thicker plate and mixed structural offcuts too substantial to classify as light iron.
Light iron and sheet metal
Thin-gauge sheet, panels, cladding, and roofing. Lower per-tonne value than structural grades, but genuine volume on most sites.
Copper and aluminium
Wiring, tubing, and window or door extrusions from fit-outs. Worth separating from ferrous material since it prices completely differently.
Before you estimate what a job will yield, check current rates for each material category.
Check live pricesDifferent job types, different material profiles
Residential
Leans toward lighter-gauge material, roofing, guttering, and light structural steel, plus copper and aluminium from wiring, plumbing, and window or door fittings.
Commercial
Generally carries more structural steel and a real HVAC and cabling component, ductwork, copper piping, and often genuine electrical cable volume throughout the building.
Industrial
The heaviest end of the spectrum: structural steel at real scale, sometimes with process equipment or machinery that itself needs breaking down into gradeable material.
Estimating roughly what a site will generate before the job starts helps with planning the separation work and setting realistic expectations for what the recovered metal is worth.
A real safety consideration, not just a listing preference
Asbestos clearance comes before metal recovery
In Australia, buildings constructed or renovated before 1990 may contain asbestos in cladding, roof sheeting, pipe lagging, and other materials, and it was fully banned nationally from 2003. Before demolition begins, asbestos generally has to be identified, assessed, and removed first, with metal recovery happening after that clearance, not alongside it. Removing more than 10 square metres of non-friable, bonded, asbestos requires a licensed Class A or B asbestos removal business, and any amount of friable asbestos requires a Class A licence specifically.
This is Australian regulation, used here as a concrete, real example rather than a universal rule. Asbestos handling requirements differ by country, so check local regulations for the specific jurisdiction a job sits in before treating any of the above as applicable outside Australia.
The honest objection
"What about material that's contaminated or mixed with non-metal debris?"
It will grade and price lower, that's true everywhere
Mixed or contaminated material always grades and prices lower than clean, separated material, on any job, not just a demolition site. Where practical, separating on-site before listing is usually worth the labour cost in what it adds to the final price, though the labour-versus-value trade-off does depend on how mixed the debris actually is.
Frequently asked questions
Does selling the metal actually make a meaningful difference to a demolition budget?
It can be substantial. Tipping fees commonly cited around $62 a ton mean separating metal out before it goes to landfill avoids that cost entirely, on top of whatever the scrap itself is worth. On a structural teardown, avoided disposal cost plus recovered value is often bigger than expected.
Is it worth separating metal on-site instead of hauling mixed debris?
Generally yes. Industry estimates put the disposal-cost reduction from on-site metal separation at roughly 20 to 40 percent, depending on project size and what is actually in the debris. Clean-separated material also grades higher than metal pulled out of mixed loads later.
Does asbestos clearance need to be finished before metal can be listed?
For material near or mixed with asbestos-containing debris, yes, clearance needs to happen first as a safety matter. Metal recovered from unaffected parts of a site is not held up by clearance happening elsewhere on the same job. Rules on this vary by country, so check local regulations for the specific jobsite.
Does a residential job generate enough metal to be worth listing separately?
Often yes. Even a single house strip-out generates real copper, aluminium, and light steel volume. It is smaller than a commercial or industrial job's yield, but rarely negligible once wiring, plumbing, and fittings are actually totalled up.
List your next teardown's metal
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Related reading: Scrap material categories · For auto wreckers · Live material prices