A custom installation involves physically integrating the equipment with your home. That could be simply a plasma screen and speakers fitted to a wall with hidden cabling. Or it could be multiple components around the whole house for a completely integrated home entertainment, lighting and automation system. Its a bespoke solution just for you. Usually the installer will specify and supply the equipment, but the customer may have preferences which are, of course, part of the equation. Who should have a custom install? Everyone who would rather not specify and/or install the home cinema themselves. Choosing which equipment is best for your circumstances can be a time consuming process. An installer has the experience to make that decision for you. Performing even the simplest installation of a wall-mounted plasma screen and speakers may require tricky routing of cables in the wall. If the installation is to be seamless and family-friendly then maybe its best to let the professionals take charge. What benefits are there? Aside from the obvious benefit of having a hassle-free installation, your installer can also optimise the system for you. Since no display is correctly calibrated out of the box and every sound system needs adjusting to your room, why not ensure that you are getting every last drop of performance from your equipment by having a professional set it up for you? What are the costs? Of course it varies with the amount of work involved. But what you have to ask yourself is whether the outlay is worth the peace of mind of knowing that you have got the very best solution for your money. If you have already decided to invest in a home cinema system, then investing further to ensure you get the right equipment installed and calibrated properly is just a logical extension of the process.