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Question DetailsAsked on 8/9/2016

What does it typically cost to replace a radon exhaust fan in the Northern Virginia area?

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Depends on whether your problem is from crawlspace, basement, slab on grade, etc. Typically $500 minimum just for an extraction fan system in a crawlspace (though commonly vapor barrier and fan is better for that case) or drawing from under a slab, assuming the under-slab soil allows adequate airflow to exhaust from the entire slab area - is commonly tested with a smoke pencil at a hole drilled in the slab on opposite corner from where fan is to be installed. If perforated pipe has to be installed to collect the gas under a slab, can very quickly get into the $1000-1500 cost range. Overall average for retrofitting (as opposed to new construction) sub-slab depressurization systems is probably around the $1000 range. New construction probably about $500 range - generally just vapor barrier under the slab with maybe some perforated pipe, plus ventilation fan, installed prior to pouring the slab.


You need to get several bids (assuming the testing has been done to show you need this) - Radon Detection and Reduction is the Search the List category for this.


And no, this will be covered by almost no insurance policies, except maybe VERY old ones (pre-80's) that they forgot to update to exclude this.

Answered 2 years ago by LCD




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