Garbage disposals can range from $70 on the low end to $380 on the high end -- and generally speaking, you get what you pay for. A less expensive unit is likely to produce more noise, require more water, and clog more easily than a higher-end model. Likewise, a more expensive unit will be faster, quieter and less likely to malfunction than a lower end model -- and it will be lighter-weight and offer greater capacity as well. The average cost of a garbage disposal installation with a one-year manufacturer’'s warranty is $185. The average amount of time taken to install a garbage disposal, including cleanup, is three hours. The hourly cost for labor will range from $20 to $40 -- $28 on average.
Another common cause for a leaking garbage disposal is the disposal flange. A leak at the very most upper area of the garbage disposal could be the garbage disposal flange which goes through the sink. A garbage disposal flange should be sealed with Plumber’s putty and then tightened from underneath the sink. If this is not tight enough or if it has managed to come loose (which can happen) then the garbage disposal will have to be taken down so the flange can be resealed and then the garbage disposal can be rehung.