Homeowners
Professional 48-hour radon testing for homeowners who want peace of mind and a clear electronic report.
NRPP #115300-RMP
Montgomery County Based
Independent Radon Testing
About Radon & Co
Ali-Reza Rizwani founded Radon & Co with a simple mission: to build the most trusted radon company in Maryland. Combining his background in computer science with a technology-driven approach, he has grown the company from the ground up by focusing on customer feedback, innovation, and exceptional service. Today, Radon & Co serves homeowners, real estate professionals, property managers, and commercial clients across Maryland and the East Coast, earning a reputation for trust, transparency, responsiveness, and high-quality radon testing services.
Ali-Reza Rizwani
Owner-Operator | NRPP #115300-RMP
A local company focused on fast, professional radon testing
RADON & CO was created to solve a simple problem: radon testing should not feel confusing, slow, or overly complicated. Whether someone is buying a home, selling a property, managing rentals, coordinating a commercial project, or trying to meet a financing or documentation requirement, the testing process should be clear from start to finish.
We provide NRPP-certified radon testing with a modern, responsive workflow: schedule the test, place the monitor, follow proper testing conditions, retrieve the device, and deliver a clear electronic report.
Our core service area is Montgomery County, Maryland, where we provide residential radon testing starting at $125. We also serve select projects in Washington DC, Northern Virginia, Howard County, and nearby areas, with pricing based on distance, access, urgency, and project scope.
Led by a certified radon measurement professional
RADON & CO is led by an NRPP-certified radon measurement professional, certification number #115300-RMP. That certification matters because radon testing is not just placing a device in a room. Professional testing requires proper placement, timing, closed-building condition awareness, documentation, and clear reporting.
Our goal is to give customers a result they can actually understand and use, whether the report is for peace of mind, a real estate transaction, rental property records, a commercial project file, or a facility team.
Independent testing only
RADON & CO specializes in independent radon testing. We do not sell mitigation systems as part of the testing process. That helps keep the role clear: we measure and report radon levels so the property owner, buyer, agent, landlord, or facility team can make an informed decision.
If elevated radon levels are found, we can explain the report and recommend that you speak with a qualified radon mitigation professional about next steps.
Residential simplicity. Commercial seriousness.
Many radon companies focus only on single-family homes. RADON & CO is built for both residential and commercial work.
For homeowners and real estate agents, we keep the process simple: fast scheduling, professional placement, 48-hour testing, and electronic reporting.
For commercial and institutional clients, we take a more project-based approach. Nursing homes, assisted living facilities, multifamily buildings, HUD-related projects, schools, childcare centers, rental portfolios, and property management groups may need multiple test locations, floor plan review, access coordination, and documentation for several stakeholders.
Who we serve
Buyers, sellers and agents
Real estate radon testing designed for contract timelines, agent communication, and transaction documentation.
Landlords and property managers
Testing support for rental properties, basement units, ground-contact units, and property portfolios.
Commercial project teams
Radon testing coordination for offices, multifamily properties, healthcare facilities, schools, and institutional buildings.
Nursing homes and assisted living facilities
Project-based testing for senior living, nursing home, rehabilitation, assisted living, and healthcare-related properties.
HUD and multifamily projects
Testing support for multifamily properties, affordable housing, refinancing, environmental review, and documentation needs.
Why customers choose RADON & CO
- NRPP-certified radon measurement professional: #115300-RMP
- Montgomery County-based local company
- Residential radon testing starting at $125 in Montgomery County
- Fast 48-hour testing process
- Digital continuous radon monitor workflow
- Electronic reports for homeowners, agents, landlords, and project teams
- Real estate transaction friendly
- Sentrilock access available when authorized
- Commercial, HUD, nursing home, multifamily, school, and rental portfolio testing support
- Responsive communication from a real person
A modern, tech-minded testing workflow
RADON & CO brings a modern, data-minded approach to a traditional environmental testing service. The goal is not to make the process complicated. The goal is to make it smoother.
From online booking to electronic reports, we focus on reducing friction for the customer. For real estate agents, that means faster coordination. For homeowners, that means less confusion. For property managers and commercial teams, that means clearer documentation and better organization.
What customers say
D'Ann Melnick, Property Manager
“As a property manager in Montgomery County, these guys are my go-to when it comes to required radon testing for the properties I manage! They make it super easy to schedule and are always very responsive and fairly priced. They make my job so much easier!”
Jennifer H
“If you are looking for a radon test, don’t hesitate to call Ali. He was very efficient, professional, and helpful. I called many places, and Ali was the only one who actually answered the phone. Nothing beats speaking to a real person. Highly recommended!”
Ashley Drive
“Ali with Radon & Co answered all my questions, had flexible scheduling and was quick to set up and remove equipment. Got results quickly in electronic format. Pricing was better than other options. Will use again next time I need a test.”
Our mission
Our mission is to make professional radon testing easy to schedule, easy to understand, and easy to trust. Whether the project is a single home, a real estate transaction, a rental property, a nursing home, a school, or a multifamily building, RADON & CO is built to provide clear testing, clear communication, and clear reporting.
Official radon resources
RADON & CO uses official radon guidance and recognized industry resources to help customers understand why testing matters. Helpful resources include:
Need a fast radon test or commercial quote?
Book a residential radon test online or contact RADON & CO for commercial, multifamily, nursing home, school, rental portfolio, or HUD-related testing.