This paper presents a development of a Dynamic Home Automation Security (DyHAS) Alert System with Laser that interfaces on Webpages and Windows 10 Mobile Application. Home security has been identified as one of an important issue in today's life. Cases of home burglary continue to arise daily. Existing home security systems faces drawback to home users where certain flaws occurred in the system such as not web-supported, lack of dynamic features and difficult to handle. Thus, enhancing to dynamic home automation security alert is the objective of this research. DyHAS is developed which comprised of lasers, lights, alarm and python programmed that interfaces with webpage and Windows 10 mobile devices. Dynamics alert are triggered according to identified parameters and it is adaptively set with lights, alarm and alert messages to home owner's mobile devices and webpage. Triggers messages are updated and data are logged. Adaptive bypass security can be configured if needed. Windows 10 mobile application and Raspberry Pi 2 are used in the designed system. Wireless connectivity is used as the communication medium between the hardware and software components of the system. Successful system is tested on small circuit board with alerts data sent to home users on Windows 10 mobile application and webpages platform. Selected outdoor are tested at the security levels that includes installation of laser beam module. This research is significant and benefits for recent technology on home security system which suitable for small or large covered areas.