What is the cheapest way to get rid of old furniture in London?

For a single small item, council bulky waste collection (£25 to £50 for 3 to 5 items, 5 to 14 day wait) may be cheapest. For larger or urgent jobs, per-item waste removal is faster and often comparable in price. A 2-seater sofa collected same day by Waste Predators costs £70 with no waiting.