Services and facilities at JNB Airport include official taxi and shuttle operators, airport helpdesk, several ATMs and banks, bars and restaurants, a duty-free shopping mall, business centre, disabled lifts and parking facilities. Free shuttles serve outlying parking areas.
1 Installing a water radon mitigation system runs from $1,000-$4,500, and maintenance runs $0 to $150 annually. 2  To find out about radon content in a city water system, call the local water provider. 3  It's wise to retest a home's radon level every year or two after a mitigation system is installed. It's wise to retest a home's radon level every year or two after a mitigation system is installed. 2  Most radon mitigation systems include a fan, which will need to be replaced about every 5 years. 3  Expect to pay $250-$300 to have this necessary maintenance done.
1 Fix the home if the radon level is 4 picoCuries per liter (pCi/L) or higher. 2  Radon levels less than 4 pCi/L still pose a risk, and in many cases, may be reduced. 3  Take steps to prevent device interference when conducting a radon test.n a new home, the cost to install passive radon-resistant features during construction is usually between $350 to $500. In some areas, the cost may be as low as $100. A qualified mitigator will charge about $300 to add a vent fan to a passive system, making it an active system and further reducing radon levels.