Radon Detection & Control

What Radon Detection & Control does

Radon Detection and Control (RDC LLC, Inc.) is a family-owned radon testing and mitigation services firm founded in 1986 and headquartered in South Heights, Pennsylvania, serving western Pennsylvania and northern West Virginia. The company provides radon testing using Continuous Radon Monitors (48-hour tests), charcoal kits, 90-day long-term tests, and indoor water testing, alongside radon mitigation system installation and chemical vapor intrusion mitigation for properties near contaminated soil or groundwater. Its customer base spans individual homeowners and home buyers, real estate professionals (supported by a dedicated Realtor QuickQuote portal), commercial properties (schools, apartment complexes, churches, office buildings), and industrial sites requiring ASTM E2600-10-compliant vapor intrusion assessments.

The firm's core technology stack is service-oriented rather than software-oriented: it comprises Continuous Radon Monitor instrumentation, sub-slab ventilation and depressurization systems, and chemical vapor mitigation systems designed and installed by full-time (non-subcontracted) technicians. RDC's mitigation systems are backed by lifetime transferable warranties and supported by a continuous testing program to verify ongoing performance against EPA action levels (below 4 pCi/L). The company is the oldest and largest radon services firm in western Pennsylvania, with over 35,000 residential mitigation systems installed cumulatively plus thousands of systems in commercial properties.

Commercially, RDC operates a quote-based, free-estimate professional services model with optional delayed-to-closing payment terms for real estate transactions and interest-free payment plans. Revenue is generated from one-time testing fees, one-time mitigation installation fees, and recurring continuous testing program contracts. Acquisition channels include direct field service, real estate professional referrals, and inbound phone/website inquiries, with no public-facing pricing and no disclosed revenue figures. Leadership is concentrated in CEO John Mallon, who also serves as AARST National Vice President and chairs the ANSI Standard Committee on multifamily radon mitigation standards, reinforcing the firm's regulatory and reputational standing within a narrow regional niche.

Name

Radon Detection & Control

Legal name

RDC LLC, Inc.

Website

https://radondetectionandcontrol.com

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

1–10 employees

Short description

Radon Detection and Control is a family-owned radon testing, radon mitigation, and vapor intrusion services firm founded in 1986, serving homeowners, real estate professionals, and commercial properties across western Pennsylvania and northern West Virginia.

Ownership category

akta.pro rank

Product category

Radon Testing and Mitigation Services

NAICS

Remediation Services (562910), Testing Laboratories and Services (541380)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Radon Mitigation & Ventilation Services (HSAOAIAK)

akta.pro secondary industries

Radon Detection & Monitoring Systems (HSAHAGAF), Vapor Intrusion Mitigation & Soil Vapor Extraction (SVE, Sub-slab Depressurization) (EUAIALAH), Radon Risk Screening & Testing (Real Estate Transactions) (EUAHAEAG)

Keywords

• Radon testing services
• Radon mitigation systems
• Vapor intrusion mitigation
• Indoor air quality
• Sub-slab ventilation

Headquarters

HQ city

South Heights

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Supply Chain

Revenue model

1. Radon Testing Services: Professional radon testing using Continuous Radon Monitors (48-hour tests), charcoal testing, long-term 90-day testing, and indoor water testing. Testing determines if radon levels exceed EPA action level of 4 pCi/L
2. Radon Mitigation Installation: Installation of radon mitigation systems designed for each structure, considering health, aesthetic value and cost. Systems fully guaranteed with lifetime transferable warranty
3. Water Radon Testing: Testing of household water for radon contamination, recommended for homes with well water in high radon concentration areas
4. Vapor Intrusion Mitigation: Design and installation of Chemical Vapor Mitigation Systems for existing buildings and new construction near contaminated sites

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Radon Detection & Control provides on-site radon testing services (Continuous Radon Monitor, charcoal, long-term, and indoor water testing) and radon mitigation system installation for residential and commercial properties across western Pennsylvania and northern West Virginia. The company also designs and installs chemical vapor intrusion mitigation systems for buildings affected by contaminated soil/groundwater. Services are delivered directly by full-time, certified in-house installers and come with lifetime transferable warranties.

Product overview

Radon Detection and Control is a radon testing and mitigation services company offering a portfolio of testing methods (Continuous Radon Monitor, Charcoal, Long-Term, and Water testing) and mitigation solutions (residential and commercial radon mitigation systems, vapor intrusion mitigation). The core offerings include radon testing services, radon mitigation installation, and vapor intrusion mitigation. Additional services include commercial building radon testing, and a Realtor QuickQuote tool for real estate professionals. The company provides fully guaranteed, fully insured radon services with lifetime transferable warranties throughout western Pennsylvania and northern West Virginia.

Differentiator

Problem solved

Functional benefit

Products and services

• Radon Mitigation Services Design and installation of radon mitigation systems (including sub-slab depressurization units and energy-efficient ventilation fan systems) that reduce indoor radon levels below the EPA action level of 4 pCi/L. Available for homeowners and supported by a lifetime transferable warranty.
• Radon Testing Services Professional radon level measurement using Continuous Radon Monitors (48-hour tests), charcoal test kits, long-term 90-day testing, and indoor water testing to determine whether radon levels exceed the EPA action level of 4 pCi/L in residential and commercial properties.
• Vapor Intrusion Mitigation Services Design and installation of chemical vapor mitigation systems for existing buildings and new construction affected by vapor intrusion from contaminated soil or groundwater, including sub-slab ventilation/depressurization systems. Often paired with soil, groundwater, soil gas sampling, and Phase II/III site assessments per ASTM E2600-10.
• Commercial Building Radon Services Radon testing, mitigation design/build, and inspection services for office buildings, schools, apartment complexes, daycare centers, and other commercial properties, including specification preparation and comprehensive inspections for large building projects.
• Indoor Water Radon Testing Testing of household water for radon contamination, particularly recommended for homes with well water in high radon concentration areas, to determine whether radon is entering the home via the water supply.
• Realtor QuickQuote Portal Online portal enabling real estate professionals to request radon testing and mitigation quotes for client properties during real estate transactions, supporting referral partnerships with agents and brokers across western Pennsylvania and northern West Virginia.

Quantifiable outcome

• Over 35,000 residential mitigation systems installed plus thousands in schools, apartment complexes, churches, and commercial properties
• +2 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• PA DEP Bureau of Radiation ProtectioncoreOthersLicensed and certified by PA DEP Bureau of Radiation Protection for radon consulting, design, mitigation, retrofit, and testing services in Pennsylvania. PA DEP Certification #0492 and #0493.
• WV Department of HealthcoreOthersLicensed and certified by West Virginia Department of Health for radon consulting, design, mitigation, retrofit, and testing services in West Virginia.
• National Radon Proficiency Program (NRPP)coreOthersCertified by NRPP for radon testing and mitigation proficiency standards.
• National Radon Safety Board (NRSB)coreOthersNRSB certified - Certification #GSS291 for radon measurement professional.
• National Environmental Health Association (NEHA)coreOthersNEHA certified professionals. Owner John Mallon serves as NEHA Board Member and was Residential Mitigation Board Member for NEHA Technical Review Board.
• American Association of Radon Scientists and Technologists (AARST)coreOthersOwner John Mallon serves as AARST Vice President and National Board Member. Company is AARST Vice President organization.
• Vapor Intrusion Testing Service ProvidersminorStrategic or Co-development PartnerRDCLLC partners with top providers of vapor intrusion testing services including soil, groundwater, soil gas sampling, well installation, UST closure site assessments, groundwater monitoring, Phase II/III site assessments per ASTM E2600-10.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Pillar To Post Home Inspectors: National home inspection franchise that often partners with or subcontracts radon testing services. Comparable to RDC in real estate transaction-driven radon testing, but competes from a broader home inspection platform rather than dedicated radon expertise.
• Aire Serv (Neighborly): National HVAC and indoor air quality franchise under the Neighborly brand, which includes radon mitigation among its services. Comparable to RDC in residential radon mitigation and sub-slab depressurization, but bundles radon inside a much broader home services portfolio.
• AmeriSpec Inspection Services: National home inspection franchise whose services frequently include radon testing bundled with general home inspections. Comparable to RDC in offering radon testing to home buyers during real estate transactions, but operates as a broad home inspection brand rather than a radon specialist.
• Terminix (Rentokil): National pest and home services company that offers radon testing in some markets alongside its pest control operations. Comparable to RDC in selling radon testing into residential homes, but as a broad home services incumbent rather than a radon specialist.

Direct peers

• SWAT Environmental: National radon testing and mitigation company operating across multiple U.S. states. Comparable to RDC as a direct provider of residential and commercial radon mitigation, sub-slab depressurization, and vapor intrusion services with a multi-state field service model.
• Allied Radon Mitigation: Multi-state radon testing and mitigation provider focused on the Mid-Atlantic and Midwest. Comparable to RDC in sub-slab depressurization installations, CRM testing, and real estate-driven testing volume.
• First Choice Radon: Regional radon testing and mitigation services company. Comparable to RDC in residential mitigation systems, lifetime warranty-style offerings, and partnership with real estate professionals for transaction-driven testing.
• Aardvark Radon: Mid-Atlantic radon testing and mitigation company serving Pennsylvania, New Jersey, Delaware, and surrounding states. Closely comparable to RDC in regional service area, residential mitigation focus, and reliance on real estate transaction-driven demand.
• The Radon Guys: Regional radon mitigation franchise operating across multiple U.S. regions. Comparable to RDC in core radon mitigation service, residential install focus, and real estate channel partnerships, with broader geographic reach.
• AccuStar Environmental: Environmental testing firm offering radon measurement and indoor air quality services. Comparable to RDC in continuous radon monitor testing, water radon testing, and commercial indoor air quality work for schools and offices.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Radon Detection & Control