http://www.doh.state.fl.us/environment/community/radon/radonFAQ.htm

You need to find out several things in addition to the total cost of mitigation including taxes and permit fees if applicable:

·         Do I need to pay a deposit?, when is the final payment due?

·         How much time is needed to complete the work

·         Contractor agreement to obtain necessary permit and follow building codes

·         Statement that contractor carries liability insurance and is bonded and insured

·         A guarantee that the contractor will be responsible for damages and clean-up after the job

·         Details of warranties, guarantees, optional features, including acceptable resulting radon levels

·         Are warranties transferable if you sell your home

·         Description of what is expected of the homeowner before the work begins