How to Wire and Install a Dimmer Switch

  1. Remove the screws holding the old switch in place and pull the device out of the box.
  2. Cut the existing wires as close to the switch as possible. …
  3. Strip about 3/4 inch of insulation back from the freshly cut wire ends and attach them to the leads on the dimmer.

Can I install a dimmer switch on any light?

A dimmer switch can be installed anywhere that an existing on or off switch is in place. Replacing the current toggle switch with a dimmer switch will allow you to change the lights’ brightness, so long as you are using a light bulb that is compatible with the dimmer you have chosen.

Do you need an electrician to install a dimmer?

You may be able to install a dimmer switch yourself if you have worked with electricity before, but if you’re uncomfortable with the process, you should hire a licensed electrician.

Do you need special wiring for a dimmer switch?

New dimmers have either a green grounding wire or a green ground screw that you’ll have to connect to a grounding source if one is available. Houses wired with plastic-sheathed cable almost always have bare copper ground wires that you’ll connect to the toggle dimmer switch.

How do you install a light switch in an old house?


  1. Remove the Cover Plate and Test for Power. Remove the wall switch’s cover plate by removing the mounting screws. …
  2. Extract the Switch. …
  3. Examine the Wires. …
  4. Disconnect and Remove the Switch. …
  5. Attach a Grounding Pigtail (If Needed) …
  6. Connect the New Switch. …
  7. Install the Switch and Cover Plate.

Do you need an electrician to change light switch?

Do I need an electrician to replace a light switch? No. If you’re replacing a broken light switch or a like-for-like one, it’s a simple task that only requires you to know how to safely isolate the circuit and some basic tools.

How much does it cost to install a dimmer switch?

Dimmers average $10 to $25 each, though there are styles that cost up to $50. Installing new or upgrading to this type will range from $100 to $200.

How easy is it to add dimmers?

Quote from the video:
Quote from Youtube video: The way of doing that is simply to take a photo with your smartphone. This make sure that when you're putting the cables back in they go into the right place.

How do you change a regular switch to a dimmer switch?

Quote from the video:
Quote from Youtube video: First turn off the power to the switch at the circuit or fuse panel unscrew and remove the switch. Plate. Then use a voltage tester to make sure that the circuit is dead it should read zero.

Where should dimmers be placed in a house?

5 Best Rooms for a Dimmer Switch

  1. Living Room. The living room is a great place to start if you want to give dimmer switches a try, because it’s the room where you spend most of your time. …
  2. Dining Room. …
  3. Kitchen. …
  4. Bedroom. …
  5. Master Bathroom.

How do you wire a switch in an old house?

Quote from the video:
Quote from Youtube video: First like you typically have we have our neutral coming up going over the receptacle. Then our hot wire comes over and instead of going right to the receptacle.

Do dimmers need to be grounded?

Tip. In an older home, you may encounter a switch box that has no ground wire. In that case, an exception in article 404.9(B) of the current National Electric Code (NEC) allows a dimmer without a connecting ground wire to still be installed if it is a replacement.

How do you wire a dimmer switch?

Quote from the video:
Quote from Youtube video: A single-pole dimmer like this one has two wires that you're going to connect to the wires coming out of the box and a separate ground wire. Go ahead and take the stripped wires twist.

What will happen if you wire a light switch wrong?

But here’s the catch: If you connect the circuit wires to the wrong terminals on an outlet, the outlet will still work, but the polarity will be backward. When this happens, a lamp, for example, will have its bulb socket sleeve energized rather than the little tab inside the socket.

Can a light switch catch fire?

Question: How does a light switch cause fire? Answer: The terminals can very slowly loosen, causing resistance at the point of connection. This causes heat, which can start a fire.

Do you need an electrical certificate to sell a house?

You do not need to provide an Electrical Installation Condition Report (EICR) in order to sell a property, although it will give your buyer peace of mind that the property they are buying is electrically safe.

What happens if an electrician does not provide a certificate?

If they weren’t registered, they will be unable to supply you with a certificate so you will need to contact your local authority building control who will advise you the next steps. If you do not have the correct certificate for major electrical work, you may find it difficult to sell your property.

Do I need to rewire my house before I sell it?

In many cases, a complete rewiring is not necessary unless the entire electrical system is outdated or parts of it are damaged. Despite their age, many electrical systems can still be used safely. But it’s crucial to confirm this with an electrician before you sell your home online.

Can a property be transferred without an electrical compliance certificate?

Who needs to obtain an Electrical Compliance Certificate when transferring property? It is the general practice that an owner before transferring property, obtains the necessary electrical compliance certificate or has one in his possession which is capable of being transferred.

Do I need a CoC when I do alterations to the electrical system on my property?

Do I need a CoC when I do alterations to the electrical system on my property? Yes. A CoC must be issued when any alterations are done to an electrical installation.

How much does a certificate of Compliance cost?

The Coc certificate costing all depends on the type as well as the size of the premises this may be anywhere from R850. 00. This cost will only cover the cost of the certificate and any changes that may need to be made to the electrical components of the premises will need to be paid for over and above this price.