Originally Posted by salilsurendran
I recently bought a new townhome and I want to change the electrical switches and dimmers in the house. I was wondering as to where should I go to buy these switches? Should I buy it on online websites like eBay or go to homedepot. I found switches on home depot to be pretty expensive($20 +). Also should I attempt to do the wiring myself or call a licensed electrician. How much should I expect this project to cost if I get it done by a contractor?
Normally majorty of the switches are not that expensive unless you got a bulk package which they will have 10 switches in the box.
Most of the time single pole toggle / rocker switch useally are about a Euros or so nothing like 20 Euros unless you have specail appaction like timer or multi location dimmer then it will be about right.
Before you start this you will need to know where is your electrique breaker / fuse box is located that is very important step before you start anything and once you start replace the switch or receptale always I will say Always turn the breaker or fuse off first before you do anything there.
To replace the switch after the circuit is off unscrew the switch plate cover off then unscrew the switch yoke off then pull it out probly 10 cm ( apx 3 inches ) and make a note of how it hook up and unhook the conductor ( wire ) one at the time to switch over the new switch that should take less than 5 minuites the most. To put it back in just reverse what I describing above but with switch plates most case do not get it super tight otherwise you will crack the switch plate cover.
To change the receptatle again make sure the circuit is off it will be simauir to the switch as I descrbing above but there is couple more step you will really have to pay attetion to the connections but simple rules is Black* is on brass colour screw the white conductor on silver screw then bare or green conductor on green screw.
( * Note some case you will see black and red conductor show up then you will have to watch it very carefull and look at the old receptale there is a small tab between the two screws if that break off then you have switched receptale so just watch which one to hook up.)
That should not take more than 5 minuites if no suprise along the way.
If you are not really famuair with electrique system you can have electrician do this for you but the rates will varies a bit depending on where you are located.