Having some basic electrical or home repair knowledge about how things work will ensure you are able to tackle a project such as this without professional assistance. If you don't even have a basic idea about home repairs and how things generally work, you might consider having your security system professionally installed. Especially if wiring is involved. However, with that being said, there are some wireless DIY home security systems that are simple plug-in and use installations. So if you choose to do the installation yourself and you are not technically inclined, you might specifically look for a security system that is wireless and known for being easy to install.