A person who is professionally trained and licensed to examine the eyes for visual defects, diagnose problems or impairments, and prescribe corrective lenses or provide other types of treatment.
1 Adding a basement to an existing house can cost $30,000-$70,000 or more, depending on the size of the existing crawlspace or half-basement or if the house is on a slab foundation, and how much of the work is do-it-yourself and how much is done by contractors. Having a prefabricated safe room (a welded steel box, a steel skeleton with steel planks or a prefabricated unit that is bolted together on site) installed in a basement can cost $3,000-$20,000 or more, depending on materials and size.
Find out how you can get this project done for only per month (est.*). The average national cost of building a foundation is $7,850, with most homeowners spending between $4,159 and $11,891. This data is based on actual project costs as reported by HomeAdvisor members. Any structure, whether a house, a garage, or workshop, is only as strong as its foundation.