Any substantial remodel will likely require the services of an architect, a designer, and/or a contractor. The determining factor is largely whether or not you will be removing or building load-bearing walls. If you are, you are best off hiring an architect.

Usually the priciest of the three, architects command a premium because they are able to create blueprints according to building department specifications, help you find a contractor, and manage the construction so your project is done correctly and on time. Architects must be licensed by the state. Occasionally, an architect will also function as a contractor.

The main difference between an architect and a designer is the architect's ability to perform building load calculations. If a project requires them, a designer must have an engineer do the design and drawings. Though designers are not as expensive as architects (and do not need to be state-licensed) if the services of a structural engineer are added in, the ultimate cost could be a wash.

If a remodel is not complex, a contractor may have the skills to produce plans acceptable to building officials. But, like designers, contractors are not approved to perform stress calculations.

All building disciplines have their own associations--the American Institute of Architects for architects, the American Institute of Building Designers for designers, and the National Association of Home Builders for contractors. Within these categories are specialized associations, such as the National Kitchen & Bath Association. Each association has a code of ethics to which members are expected to adhere, and most sponsor trade shows and seminars to educate and inform members about recent product developments and best building practices.

Architects, designers, and contractors may charge in any of several ways. Some may charge a flat fee, on an hourly basis, as a percentage of the project's final cost, or a combination of the three for different phases of the project. These phases may include the exploratory interview, drawing up the plans, supervising construction, and the like. Before any work commences, the payment structure should be clearly understood by both parties and put in writing along with a detailed description of the work to be performed.

See our state-by-state list of contractor licensing boards.