Radon-in-water aeration system
Point-of-entry aeration for private wells carrying radon into the house through the plumbing. The half of the problem an air system can't reach.
$3,800 – $6,500
typical range, not a quote
Granular activated carbon water treatment
A carbon bed that adsorbs radon out of well water. Cheaper than aeration, less effective at high concentrations, and it needs siting with care.
$1,200 – $2,200
typical range, not a quote
Radon-resistant new construction and passive stack activation
The rough-in the Radon Hazard Subcode requires on new builds in Tier 1 towns, and switching an already-installed passive stack over to an active one.
$500 – $2,500
typical range, not a quote
Commercial, school and multi-family mitigation
Room-by-room measurement and phased design for schools, child-care, multi-family and commercial slabs, usually starting at the HVAC rather than the floor.
$6,000 – $45,000
typical range, not a quote
Soil vapour intrusion mitigation
Sub-slab systems for chlorinated solvent and petroleum vapours. Same hardware as radon, an entirely different regulatory route.
$5,000 – $30,000
typical range, not a quote
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