Environmental testing
Professional Radon Testing
Smart Home Inspects provides professional radon measurement for property decisions across Montgomery, Prince George's, Howard, and Frederick Counties, Maryland. We are testing and inspection focused—we do not present measurement as mitigation installation.
Radon Resources
Practical guidance for testing, local requirements, and follow-up.
Clear testing, separate services
A radon test measures indoor-air conditions under documented test conditions. It is different from a mitigation-system inspection and from mitigation installation, so you can understand exactly what your result addresses.
Professional qualifications
Deise (Daisy) Rezende is an NRPP Radon Measurement Professional and an NRPP Soil Gas Mitigation Compliance Inspector. Her credentials support professional measurement and specialized compliance-inspection context without implying that Smart Home Inspects installs mitigation systems.
Multifamily and commercial measurement planning
Multifamily and commercial properties often need a measurement plan that accounts for multiple foundation areas, occupied units, shared systems, and how the building is used. The right scope depends on the property and the reason for testing.
We coordinate access and timing with property managers and occupants so testing can proceed with as little disruption as practical. That may include planning for entry, device protection, normal building operations, and communication with tenants or staff.
Placement and documentation follow the applicable professional measurement protocol and project conditions. We do not use one fixed device count or testing layout for every building.
Testing for the way a property is used
The right testing plan depends on the property, audience, timing, and reason for the measurement.
Residential testing
Professional measurement for homeowners who want clear information about a property’s indoor-air conditions.
Real-estate testing
Testing support for buyers, sellers, and agents who need documented results during a transaction.
Rental and property management
Testing context for landlords, tenants, and property managers, including locally regulated situations.
Multifamily and commercial
Measurement planning for properties with multiple units, foundation areas, or operational considerations.
Professional testing process
Plan the measurement
Discuss the property, purpose, timing, and any preparation instructions before placement.
Place and protect devices
Use appropriate placement and document conditions while avoiding device interference.
Receive clear results
Review a written result and next-step context for the property and testing purpose.
Choose the testing path that fits
Explore the purpose and limits of each measurement option before scheduling.
Short-term testing
A practical option when a timely documented measurement is needed, including many real-estate situations.
Long-term testing
A longer measurement period that can help owners understand conditions over time when timing allows.
Post-mitigation testing
Follow-up measurement after a mitigation change, distinct from inspecting the mitigation system itself.
Radon in water
A related water-quality question for appropriate private-well and water-supply testing situations.
Local requirements are jurisdiction-specific
Some rental and real-estate situations have local radon requirements. Montgomery County, Rockville, and Gaithersburg should not be treated as having one shared statewide rule. Start with the applicable local resource and the controlling government source.
Buying a home? Read our guide to radon testing when buying a home in Maryland.
Explore Local Radon Requirements
About the Author – Daisy Rezende
Daisy Rezende is the co-owner of Smart Home Inspects and Smart Home Radon, where she specializes in radon, mold-related, and water quality inspection work. Her verified credentials include NRPP Radon Measurement Professional, NRPP Soil Gas Mitigation Compliance Inspector, and Maryland water-sampler certification.
Her work focuses on clear measurement, careful documentation, and helping property owners and professionals understand the environmental information relevant to a property.
With a background that combines technical expertise and community leadership, Daisy brings clarity and professionalism to every inspection. Her mission is simple: to help clients understand their environment, protect their health, and make confident decisions about their properties.
Ready to schedule radon testing?
Tell us about the property and why you need the measurement. We will help you start with the right testing path.