For an easy clog, your plumber may get the job done in mere minutes. For a more stubborn or deep-seated clog, the process may take multiple hours.

Hydro jetting is a powerful method professional plumbers use to clean tough drain clogs. It involves using high-pressure water jets to break up and flush away debris and blockages. Hydro jetting effectively removes grease buildup, tree roots, and stubborn clogs deep within the plumbing system.

If your plumber hasn't had success after attempting to clear a drain or sewer line with a motorized snake, it could indicate a complete blockage further down your sewer line.

Dyno-Rod, the company best-known for carrying out this type of work, says it would have charged £145 plus VAT to unblock his drain, with each job typically taking two hours. Had his house required more extensive drain repairs, its typical bill is around £1,800.