Building services engineers specialising in design and build mechanical and electrical services to new and refurbishment projects in the South of England; with a guide to their services and recent projects, and contacts.

An independent certification body for the building services industry; includes a guide to registration and accreditation for the industry, and a consumer directory of approved heating and ventilation contractors.

Professional body that accredits courses of study in further and higher education, approving workbased training, and providing routes to professional registration; with contacts and details of services.

A consulting engineering practice specialising in the design, specification and costing of mechanical and electrical building services; includes details of their services, project portfolio, and contacts.

A team of building services, mechanical, and electrical consulting engineers; offers a guide to their services for residential and commercial clients, and their design consultancy.

Nationwide heating and ventilation company capable of handling a wide variety of projects; provides a guide to their services and capabilities, with a library of recent projects.