Building services are the exclusive systems fixed in buildings so as to make them more comfortable and functional. The services have a pivotal central role in contributing to thebuildingsÃ¢â¬â¢ design. These run into all strategies and standards and contribute to the faÃÂ§ade engineering. Building services include the distribution of drainage, energy sources, horizontal services, sustainability etc. The services may include Lighting (natural and artificial), Lightning protection, Refrigeration, Security and alarm systems, Water, drainage and plumbing, Building control systems etc.