Reclaim Timber's trustees Adrienne and Robert Scott say timber does not belong in landfill and want the demolition industry to be regulated to prevent good timber and treated timber being dumped.
The couple, who have been in business for 10 years reclaiming timber destined for the city dump, are making a submission on the council's waste minimisation bill, which closes March 1.
Native timbers are becoming a timber of the past, but at Reclaim Timber they are very much in the present.
Premium native timbers are in state houses that are under the wrecking ball, and treated timbers from demolition or building sites are also bound for the dump.
"It's a mass onslaught and it's got to stop," the couple say.