Downspout cleaning & unclogging in Markham

Markham's downspout calls have a signature: the willows. The mature willows near the Rouge tributaries around Unionville and Old Markham Village shed fine, whippy material that wraps into elbows and builds a plug leaves alone never would — it has to be worked loose, not just flushed. Out in Cornell and Wismer the problem is geometry instead: laneway-style lots discharge spouts into tight side yards a metre from the neighbour's wall, so a blocked or badly aimed elbow puts water where two foundations can find it.

Every cleaning we do ends with a downspout flush and an end-to-end flow test, included, because clearing the trough without proving the spout is half a job. We clear blockages from the top or the elbow on the same visit and check the discharge actually leads away from the house — on tight Cornell lots that check matters as much as the flow. For 2026, a two-storey townhouse cleaning with the full flush is $349 and a two-storey detached is $399.