Is there a one-size-fits-all installation procedure for waste disposal units?  Unfortunately not.  The method of installation can vary distinctly depending on the type of unit you buy.  This is why every model sold in the market comes with detailed instructions specific to the model.  If you are not quite sure on how to do it, your best bet is to have it professionally installed.

Why?  Waste disposal units are significant investments and you would want them to remain efficient and functional for as long as possible so you have to make sure that they are installed properly.  Here are some things you need to know.


careful planning

Careful Planning

Before starting with the installation process there should be ample time dedicated to planning the plumbing.  You cannot discount the possibility that some of the pipes when fitted may prevent access not only to the unit, but more importantly, its controls.

As much as possible, when doing the installation, try to avoid complicated configurations like too much tee junctions, bends, and kinks;  these can have a substantial effect on the efficiency of the waste disposal unit.  It is equally important to remember that the waste pipe must be a dedicated one so it cannot be shared by other plumbing appliances in your home.  Never make the mistake of placing the waste outlet above the gully grating.

food disposal

The Motor

Majority of waste disposal units in the market today come with a half-horsepower motor.  This type of motor does not have any commutator or carbon brushes, only a solid rotor.  This means that it is comparatively strong and durable.  Likewise, the seeming simplicity of the design limits the need for periodic maintenance and less possibility of failure.  In most cases the unit motor can give efficient service life of about 20 years on the average.

There are also units that have motors with lower power.  Of course, these consume less electricity, resulting in lower monthly bills.  But, before you jump out of your seat and get these, you have to consider if they have adequate power for your needs; otherwise, you may be spending more than you should.

Some motors have been designed to run in forward and reverse motion.  This is a feature to help you remove jammed particles in the unit.  Some can even do forward and reverse cutting action alternately for more efficiency.  Motors that provide dual direction action are known to last longer than those with single direction cutting.


The Actuator

The actuator that is responsible for controlling the mechanism of the unit is either surface-mounted or flush-fitted.  With no electrical connections, the actuator is operated using gas or pressurized air with a cover housing the light guide and a compressed embedded tubing for flush-fitted units.

It is important to understand that there should be a dedicated socket for the waste disposal unit.  This prevents the socket from lying around while the electric outlet is used for another appliance.  This will also limit potential damage to the unit through its socket.

Always make use of the socket nearest to the point of installation.  If you do not have one, get one installed together with the unit.  This prevents cable from running around too much in your work area and allows for easier access.

calculation cost

Cost of Installation

Now that you have an idea of how to plan the installation, how much will it cost you?  First off, the waste disposal unit itself would be priced around $150 to $175 depending on the brand, model, and features that come with it.

If you have it professionally installed, which is the best and suggested choice, it would take a little over 2 hours to complete the job including setup, cleanup, and verification of the operation cycle.  This amount of work would normally be charged about $130 to $220 by a licensed professional plumber.

Other related costs like supplies and materials to be used during the actual installation should be in the neighborhood of $25 to $28 only from your local hardware store.  All-in-all you would be spending anywhere from $311 to $428 for an up and running waste disposal unit in your home.

This should give you a pretty clear idea what it takes to have a waste disposal unit professionally installed in your home. Contact, a professional plumber that know what they do to help you install a waste disposal unit in your home with no worries.