Since your windows and doors are the access points, make sure that you system moniters all of your windows and doors. Adding timers and motion detectiors to your indoor and outdoor lighting is also a deterant.
You should buy a commercial security system to alert you of a break in. The alarm could also prevent robbery or dissuade the thief to continue through the house.
The most reliable home security system is considered to be ADT. This company has a long history of security and safety.
To set up a home door security system, you will most likely want to consult an electrician. If you want it to cover your entire house, it will take more work than you can handle. You should probably sign up for an ADT security system.
You should buy a security system even though you believe you have nothing of value because they could help save you in an event someone breaks into your house and you by chance are there by your self.
The best way to mount an outside camera security system on a brick house is to use a metal or plastic mounting system. These easily get attached to the house with nails or screws.
Maybe 2,000 or just but a safe for the important stuff for a couple hundred.
If you forget your password to your alarm security system the police will be contacted and you will have to give other information to prove that you are the owner of the house or alarm system.
A good price to pay for security cameras to protect either your house or your business is around the couple of hundreds of dollars. You should expect to be paying around $300-$500 if you are looking for a good quality security system.
Just two for a minimum. One for the front area of the house and one for the back area. That should be a good start.
If you are certain that you are not imagining it -- the odds heavily favor the fact that it is someone to whom you've given, or who knows, your security code. Change the security code, or invest in some mini-surveillance cameras and have them placed at strategic locations within your residence.Once you determine WHO is doing it, then you may be able to find out WHY.
If by enter in house you mean breach the security system, through the internet, then, that would depend on if the system is connected to the internet, if it is, then probably.
To maintain a house, it is necessary to have a gardener to keep up the garden, a watering system, an electric system, and possibly a security system. It is important to have professionals scheduled to keep your house up to date.