A building renovation is not a demolition: nothing is knocked down, things are removed. In an old apartment building, a hotel to renovate, a converted factory or an office to modernise, workers remove the installations before rebuilding: cast-iron radiators, copper pipework, electrical cables, aluminium window frames, boilers, metal staircases, zinc gutters. Every removal frees metal, and on a full renovation the volumes are considerable. Yet on many renovation sites in Morocco, these metals end up in the rubble skip, mixed with plaster and waste, then go to landfill. It is a dead loss: the copper, aluminium, brass and steel of a renovated building are recyclable, and recovering them reduces the cost of the site. This guide explains which metals a renovation produces, how to sort them and how to organise their collection.
The difference with demolition matters: in a renovation, the building stays standing and the work is done in phases, room by room, often on an occupied site. Removal is selective by nature: equipment and window frames come out first, then the networks are redone, then the finishes. Each metal comes out clean, at the moment it is removed, without being mixed with rubble. Our article on scrap metal from building demolition covers the case where the building is knocked down; this one covers renovation, where the metal is recovered as the work progresses.
Which metals does a renovation site produce?
A renovation site produces almost every family of metals. Copper first: water pipework, electrical cables, boilers and fittings. Cast iron next: radiators and heating elements. Aluminium: window frames, windows, doors, shutters, railings, verandas. Steel: staircases, ramps, grilles, metal doors, mezzanines. Brass: taps, locks and valves. Zinc: roofing, gutters and downpipes. Stainless steel, finally: sinks and professional kitchen equipment.
Ferrous metals — steel and cast iron, attracted by a magnet — are distinguished from non-ferrous metals — copper, aluminium, brass, zinc, stainless steel — which are not. Volumes add up fast: a full renovation of an apartment building frees radiators in every room, dozens of metres of pipework and window frames on every facade. Our article on construction site scrap describes scrap from new-build sites; this one focuses on renovation, where the metal has been in place for years.
Copper: plumbing, wiring and boilers
Copper is the most sought-after metal in a renovation, and it is everywhere in an old building. Copper plumbing pipework — hot and cold water pipes, risers, fittings — runs through the walls and ducts. Electrical cables connect the panels to the sockets and lights. Boilers and water heaters contain copper in their heat exchangers, and air-conditioning units in their circuits. Copper recycles infinitely without losing its conductivity: a pipe removed today will become a new cable or pipe.
To recover renovation copper well, preparation matters. Bare copper recovers better than sheathed cable: when the site allows it, cables are stripped and the copper separated from its plastic sheath. Brass fittings are separated from copper pipes, and pipe offcuts are cut into sections. Our article on recovering electrical cables details cable preparation, and our article on buying copper in Morocco explains the collection.
Cast-iron radiators and heating systems
Old cast-iron radiators are among the heaviest lots in a renovation. A cast-iron radiator is heavy — dozens of kilos, sometimes much more for the large models in old apartment buildings — and a whole building has one in every room. Handling must be planned: two people, a sack truck or trolley, and storage on the ground floor before collection. Before removal, the heating circuit is drained and the brass valves removed.
A cast-iron radiator in good condition can have a second life: old, decorated models are sought after for renovating character buildings and for decoration. When the radiator is intact, without cracks, it is worth offering for reuse before it goes to scrap. When it is cracked or too corroded, it goes to scrap: cast iron is remelted like steel. Boilers and hot-water tanks follow the same path, after draining and disconnection by a professional.
Aluminium window frames, staircases and steel fittings
Aluminium window frames are the other big lot in a renovation. Windows, French windows, bay windows, verandas, roller shutters: they are removed whole, then the glazing and seals are taken out to keep only the metal. Aluminium profiles are separated from the steel fittings — hinges, handles, locks — which go to the steel lot. Aluminium recycles infinitely without losing its properties, and window frames removed cleanly form homogeneous lots. Our article on sorting metals in a company explains the sorting method by metal.
Steel is everywhere: metal staircases, ramps and railings, protective grilles, armoured doors, mezzanines. Staircases and railings are cut into transportable sections, with a disc cutter, following the site's safety rules. Stainless steel from professional kitchens is sorted separately, and zinc from roofing and gutters goes in its own lot.
Sorting and preparing lots on a renovation site
Sorting metals on a renovation site starts with the magnet test: a magnet sticks to steel and cast iron, it does not stick to copper, aluminium, brass, zinc and stainless steel. This simple test, done on site in seconds, separates ferrous from non-ferrous metals. Then the non-ferrous metals are separated from each other: copper by its red colour, brass by its yellow colour, aluminium by its lightness and silver colour, zinc by its blue-grey surface.
Non-metal parts are removed: glazing, seals, wood, plastics, insulation. Pieces too long for transport are cut. A sorting area is set up away from machine movements, with skips labelled by metal. And lots are collected as the removal phases progress: a renovation site on an occupied building has no room to store weeks of scrap. Our article on scrap metal buyback step by step describes the full procedure.
Renovation scrap collection with MOUMETAL
MOUMETAL works on renovation sites throughout Morocco: apartment buildings, hotels, offices, factories, public buildings. The visit takes place at the start of the renovation, before or during the first removals, to inventory the metals: radiators, pipework, cables, window frames, boilers, staircases. Collections are then planned in phases, at the pace of the removals: the copper and radiators of one floor, then the window frames of the facade, then the boiler-room equipment. Each collection is weighed and documented, with full traceability of the flows.
After collection, the metals go to a sorting centre, then to the foundry: copper becomes new cables and pipework, aluminium becomes alloy ingots, steel and cast iron become new profiles. For the project owner, recovering renovation scrap means recovering value from an expensive site and handing over a clean building. To organise a visit, contact us: +212 660 690 806 — contact@moumetal.com. And to place renovation in the wider recycling picture, read our page scrap collection and removal and our article on metal sorting.
FAQ — Scrap metal from building renovation
What should be done with old cast-iron radiators during a renovation? Drain the heating circuit, remove the brass valves and fittings, then remove the radiators with suitable handling — they are very heavy. An intact radiator, without cracks, can be offered for reuse, especially old decorated models. A cracked or heavily corroded radiator goes to scrap: cast iron is remelted. MOUMETAL collects radiators on site, in phases, at the pace of the removals.
Where can copper recovered from a renovation site be sold? To metal collection and recycling companies, whose trade register entry mentions scrap dealing or ferrous and non-ferrous waste processing. MOUMETAL works on renovation sites throughout Morocco, with a visit at the start of the site, on-site sorting and full traceability. Prepare the copper before collection: cut pipes, stripped cables when possible, brass separated.
How do you sort metals from a renovation site? With the magnet test: a magnet sticks to steel and cast iron, not to copper, aluminium, brass, zinc and stainless steel. Then separate the non-ferrous metals by colour and weight: red copper, yellow brass, light silver aluminium. Remove the non-metal parts — glazing, seals, wood, plastics — and store each metal in its own labelled skip, away from the rubble.
Who collects scrap from a renovation site in Morocco? Metal collection companies, with trucks suited to the site's access. MOUMETAL organises collections in phases, at the pace of the removals, throughout Morocco: a visit at the start of the renovation, an inventory of the metals, weighing and documentation of the flows. Ownership of the scrap must be clarified in the renovation contract before the site starts.
What happens to aluminium window frames that are removed? The glazing and seals are removed, the aluminium profiles are separated from the steel fittings, and each metal goes to its lot. Window frames in good condition can be reused; the others go to a sorting centre, then to the foundry, where the aluminium is remelted into alloy ingots. Aluminium recycles infinitely without losing its properties.
Have your renovation scrap recovered by MOUMETAL
Copper, cast-iron radiators, aluminium window frames, boilers and metal staircases: MOUMETAL buys and collects scrap metal from renovation sites in Morocco, with a visit at the start of the site, on-site sorting and full traceability. To learn more, read our page scrap metal purchase and our article on construction site scrap. Contact us: +212 660 690 806 — contact@moumetal.com.