Keith Kristiansen
VerifiedOperating out of Stratford, Connecticut, this dedicated radon contractor offers radon mitigation, radon testing, radon-resistant new construction (RRNC), commercial radon services. Carries NRPP Radon Mitigation Specialist and NRPP Radon Measurement Professional certification from NRPP. Handles basement, slab-on-grade foundations, and uses sub-slab depressurization and passive radon systems.