Statewide Pennsylvania Realtor Resources
Pennsylvania Real Estate Radon Resources
Statewide radon testing and mitigation support for Pennsylvania realtors, brokers, and MLS members. Closing-timeline turnarounds, PA Real Estate Seller Disclosure Law (68 Pa. C.S. §§ 7301-7315) compliance, Title 25 Pa. Code Chapter 240 PA DEP-certified partner contractors, and Bright MLS + West Penn MLS coverage across 22 Pennsylvania metros.
Pennsylvania Radon Disclosure Law for Real Estate Transactions
The Pennsylvania Real Estate Seller Disclosure Law (68 Pa. C.S. §§ 7301-7315), Section 4(b), governs Residential Real Estate Disclosure. Sellers are required to disclose known radon test results and the presence of any installed radon mitigation system to buyers as part of the standard PA Seller's Property Disclosure Statement. While Pennsylvania does not legally mandate pre-sale testing, the Pennsylvania Association of REALTORS (PAR), the Greater Philadelphia Association of REALTORS (GPAR), the Realtors Association of Metropolitan Pittsburgh (RAMP), and the Greater Lehigh Valley REALTORS all recommend radon testing as standard real estate transaction practice — particularly in Reading Prong counties where elevated readings are essentially expected.
Key disclosure requirements under Pennsylvania law:
- If radon testing has been performed at the property, the seller must disclose the date and result.
- If a radon mitigation system is installed, the seller must disclose the installation date, the certified installer, and any recent verification testing.
- Sellers cannot legally withhold radon information they possess about the property under 68 Pa. C.S. § 7304.
- The penalty for failing to disclose known radon issues includes potential rescission of the sale, actual damages, and attorney's fees under 68 Pa. C.S. § 7311.
- All radon mitigation work performed in PA must be executed by a contractor certified under Title 25 Pa. Code Chapter 240 by the PA DEP Bureau of Radiation Protection — installation by an uncertified party is a violation of the Pa. Radon Certification Act and may void the disclosure.
The Pennsylvania Association of REALTORS recommends including a radon contingency clause in every PAR Standard Agreement for the Sale of Real Estate, allowing buyers to: (1) conduct radon testing during the inspection period, (2) require seller mitigation if results exceed 4 pCi/L, (3) negotiate cost responsibility, and (4) terminate the agreement if mitigation cannot be completed within the closing timeline.
ALA Risk Framework · Use in disclosure conversations
Source: American Lung Association Healthcare Provider Decision Support Tool (2024) + EPA A Citizen's Guide to Radon (EPA 402/K-12/002). Smoker-radon risk is multiplicative (~9× non-smoker risk at each exposure level) due to synergistic effect between tobacco-related lung damage and alpha-particle radiation from radon decay products.
The American Lung Association Risk Framework — A Realtor's Disclosure Tool
Pennsylvania's Real Estate Seller Disclosure Law (68 Pa. C.S. §§ 7301-7315) requires disclosure of known radon results — but the legal floor is only half the story. The American Lung Association (ALA) maintains the most-cited residential radon risk framework in the United States, and Pennsylvania realtors who can speak to ALA's risk model in a disclosure conversation move buyers from "should I worry?" to "let's address it" faster than any other tool.
ALA Lifetime Lung Cancer Risk by Radon Exposure
The ALA Healthcare Provider Decision Support Tool (2024) models lifetime lung cancer risk from chronic radon exposure for both non-smokers and current smokers, by radon level. The data below — sourced from ALA + EPA — is the framework realtors can cite when a buyer asks "is 4 pCi/L really that bad?"
| Indoor radon (pCi/L) | Never-smoker lifetime risk | Smoker lifetime risk | ALA / EPA recommendation |
|---|---|---|---|
| 1.3 (US avg) | ~2 in 1,000 | ~20 in 1,000 | No action required |
| 2.0 | ~4 in 1,000 | ~32 in 1,000 | Consider mitigation (esp. smokers / children) |
| 4.0 (EPA action level) | ~7 in 1,000 | ~62 in 1,000 | Mitigate — install active radon system |
| 8.6 (Pennsylvania state avg) | ~15 in 1,000 | ~125 in 1,000 | Urgent mitigation |
| 10.0 | ~18 in 1,000 | ~150 in 1,000 | Urgent mitigation; consider interim ventilation |
| 20.0+ | ~36+ in 1,000 | ~260+ in 1,000 | Emergency mitigation; limit time in affected levels |
How to frame a radon disclosure conversation with a buyer or seller
The ALA framework gives realtors a defensible, third-party-authority script for radon-disclosure conversations. Three usage patterns:
- For sellers with elevated test results: "68 Pa. C.S. §§ 7301-7315 requires you to disclose this reading. The ALA risk model says a never-smoker at this level has [X in 1,000] lifetime lung cancer risk attributable to radon, and the EPA recommends mitigation. Pre-listing mitigation typically costs $800-$2,500 (Philadelphia Metro $1,200-$2,000) and converts the disclosure from a sale-killer to a sale-accelerator — verified-mitigated homes close faster and at full price."
- For buyers facing an elevated inspection result: "This is a routine Pennsylvania transaction issue. The ALA framework places a 4.0 pCi/L home at 7-in-1,000 lifetime risk for non-smokers, and the EPA recommends mitigation as soon as practical. We have NRPP + PA DEP-certified partner contractors (Title 25 Pa. Code Chapter 240) who can install + verify within the 7-14 day window most contingencies allow. Most Pennsylvania sellers cover this cost."
- For sellers considering whether to pre-test before listing: "Pennsylvania is #3 in the US for indoor radon (state average 8.6 pCi/L, behind only Alaska and South Dakota). The ALA framework predicts ~2 in 5 Pennsylvania homes will test elevated — and in Reading Prong counties (Berks, Lehigh, Northampton, Bucks, Montgomery, Chester) that ratio is significantly higher due to uranium-bearing gneiss geology. Pre-testing surfaces the issue under your control rather than under buyer-side closing pressure — a pre-mitigated home with verified post-test documentation typically closes faster and at higher price than a home with an elevated test result mid-transaction."
ALA radon resources: lung.org/radon · ALA Pennsylvania: lung.org/pa · EPA A Citizen's Guide to Radon: epa.gov/radon
Pennsylvania Real Estate Radon Transaction Timeline
Standard PA transaction timeline from initial test through verified post-mitigation result, designed to fit within most PAR Standard Agreement inspection contingency windows.
| Day | Step | Who | Duration |
|---|---|---|---|
| Day 0 | CRM deployed at property during home inspection | PA DEP-certified measurement provider | Instantaneous |
| Day 2-4 | Test retrieval + result reporting | PA DEP-certified measurement provider | 48-96 hr test period |
| Day 4 | Result review — elevated (>4 pCi/L) triggers mitigation | Realtor + buyer + seller | 1 day |
| Day 5-7 | On-site assessment by NRPP + PA DEP-certified mitigator | Partner contractor | 1-2 hr visit |
| Day 7-9 | Written quote provided + cost negotiation | Realtor + buyer + seller | 2-3 days |
| Day 9-12 | Mitigation system installed | Partner contractor | 4-8 hours on-site |
| Day 13-16 | Post-mitigation verification test (independent measurement provider) | Partner contractor | 48-96 hr test |
| Day 16 | Verification result + final documentation | Partner contractor | 1 day |
| Day 16+ | Closing proceeds with verified mitigation | Closing agent | Per contract |
Services We Provide to Pennsylvania Realtors
- Pre-listing radon testing — Recommend to sellers before MLS listing to surface and mitigate radon issues upfront. Especially valuable in Reading Prong counties (Berks, Lehigh, Northampton, Bucks, Montgomery, Chester) where elevated readings are essentially expected.
- Pre-purchase radon testing — Buyer-side testing during inspection contingency period. CRM-based for transaction-grade documentation.
- Closing-timeline mitigation — Expedited 7-14 day install + verification turnaround. Designed for active PAR Standard Agreement transactions.
- Existing system verification — Confirms a previously-installed radon mitigation system is still maintaining indoor radon below 4 pCi/L. Standard practice for transfers of homes with existing systems, particularly those installed pre-2018 (fan-replacement window).
- FHA / USDA / VA loan compliance documentation — Test reports and verification documentation in lender-acceptable formats.
- New construction RRNC consulting — PA builder coordination on Radon-Resistant New Construction features per ASTM E1465 and PA Uniform Construction Code (UCC) recommendations.
- Multi-property portfolio testing — PA property managers, REITs, and rental portfolio owners.
Pennsylvania MLS & Association Coverage Areas
Pennsylvania Radon Experts partner network serves the major PA MLS regions and member associations:
- Greater Philadelphia Association of REALTORS (GPAR) — Bright MLS — Philadelphia, Bucks, Chester, Delaware, Montgomery counties
- Realtors Association of Metropolitan Pittsburgh (RAMP) — West Penn MLS — Pittsburgh, Allegheny, Washington, Westmoreland, Beaver counties
- Greater Lehigh Valley REALTORS — Bright MLS — Allentown, Bethlehem, Easton, Lehigh + Northampton counties
- Berks-Schuylkill Realtors — Reading, Pottstown, Berks + Schuylkill counties (Reading Prong epicenter)
- Greater Scranton Board of REALTORS — Scranton, Lackawanna County
- Greater Wilkes-Barre Association of REALTORS — Wilkes-Barre, Luzerne + Wyoming counties
- Greater Harrisburg Association of REALTORS — Harrisburg, Dauphin + Cumberland + Perry counties
- Lancaster County Association of REALTORS — Lancaster, Lancaster County
- Realtors Association of York and Adams Counties (RAYAC) — York, Adams counties
- Lebanon County Association of REALTORS — Lebanon, Lebanon County
- Centre County Association of REALTORS — State College, Centre County
- Blair County Association of REALTORS — Altoona, Blair County
- Greater Erie Board of REALTORS — Erie, Erie County
Statewide partner contractor coverage available for properties outside the 22 directly-served metros. All partners certified under Title 25 Pa. Code Chapter 240.
Realtor FAQ
Pennsylvania Real Estate Radon Questions Realtors Ask
Frequently Asked Questions
Does Pennsylvania law require radon testing before a home sale?
Pennsylvania does not legally mandate pre-sale radon testing, BUT the Pennsylvania Real Estate Seller Disclosure Law (68 Pa. C.S. §§ 7301-7315) requires sellers to disclose any KNOWN radon test results and any installed radon mitigation systems to buyers. Section 4(b) of the disclosure law governs Residential Real Estate Disclosure. In practice, most Pennsylvania real estate transactions now include a radon contingency clause in the Standard Agreement for the Sale of Real Estate, and the Pennsylvania Association of REALTORS (PAR) recommends testing as standard practice given PA's #3-in-the-nation indoor radon levels and the Reading Prong geology that drives elevated readings across eastern PA.
What is the standard radon testing protocol for Pennsylvania real estate transactions?
For real estate transactions, EPA recommends a short-term test (48-96 hours) using either a charcoal canister or a continuous radon monitor (CRM) under closed-house conditions. The CRM method is preferred for PA transactions because it provides hour-by-hour readings that can detect tampering (windows opened during the test) and supplies a defensible time-stamped result for closing documentation. Pennsylvania Radon Experts partner contractors use AARST-NRPP-certified Femto-TECH and Sun Nuclear CRMs for all transaction testing, and every measurement provider on our network holds active PA DEP Bureau of Radiation Protection certification under Title 25 Pa. Code Chapter 240.
If a radon test comes back elevated, can mitigation be completed before closing?
Yes. Standard Pennsylvania real estate transaction radon mitigation timeline: Day 0 — test result received (elevated, >4 pCi/L); Day 1-3 — partner contractor on-site assessment; Day 3-5 — written quote provided; Day 5-7 — buyer/seller agreement on cost responsibility; Day 7-10 — mitigation system installed (typically 4-8 hours of on-site work by a PA DEP-certified mitigator); Day 11-14 — post-mitigation verification test conducted by an independent measurement provider; Day 14 — final report ready for closing documentation. The full cycle typically takes 7-14 days, fitting within most Pennsylvania Standard Agreement inspection contingency windows.
Who typically pays for radon mitigation in a Pennsylvania real estate transaction?
Pennsylvania Association of REALTORS guidance and partner contractor data suggest roughly 60% of radon mitigations in PA transactions are seller-paid, 30% are negotiated cost-share or credit-at-closing arrangements, and 10% are buyer-paid. The PAR Standard Agreement for the Sale of Real Estate does not mandate which party pays — this is negotiated between buyer and seller after an elevated test result. Many PA listing agents in Reading Prong counties (Berks, Lehigh, Northampton, Bucks, Montgomery, Chester) now recommend pre-listing radon testing so sellers can either mitigate proactively or price-adjust before listing, avoiding mid-transaction disputes in the geology zones where elevated results are essentially expected.
Are FHA loans different on radon requirements in Pennsylvania?
HUD Handbook 4000.1 does not require radon testing for FHA-backed loans as of 2026, but HUD strongly encourages radon testing on all FHA-insured properties. Some FHA underwriters in high-radon states (PA ranks #3 nationally per recent data, with ~40% of homes elevated per PA DEP) request radon test results during underwriting, and many PA FHA lenders include radon testing as part of standard inspection requirements — particularly on properties in EPA Zone 1 counties. USDA Rural Development loans similarly encourage testing. VA loans do not require radon testing but VA appraisers may flag elevated radon as a property condition issue. New construction homes built under PA's Uniform Construction Code (UCC) commonly include radon-resistant construction (RRNC) features per ASTM E1465 standards.
Can radon testing be done at the same time as a home inspection?
Yes, and this is the standard PA practice. Most Pennsylvania home inspectors place a continuous radon monitor (CRM) during the inspection and retrieve it 48-96 hours later when they return for the final inspection report walkthrough. Some inspectors hold their own PA DEP measurement certification under Title 25 Pa. Code Chapter 240; others coordinate with PA DEP-certified measurement partners like the Pennsylvania Radon Experts network. Coordinating testing with inspection compresses the transaction timeline and is the default workflow for most Greater Philadelphia, Pittsburgh Metro, and Lehigh Valley transactions.
Does an existing radon mitigation system need to be tested before transfer of ownership?
Best practice — yes. Pennsylvania Association of REALTORS recommends post-mitigation verification testing whenever a home with an existing radon system changes ownership. This confirms the system is functional and currently maintaining indoor radon below the EPA action level of 4 pCi/L. Many Pennsylvania real estate transactions include verification testing of existing systems as a buyer-protection step — particularly important in PA because radon fan motors are rated for ~8 years of service and pre-2018 systems may be on their second or third fan. If the seller cannot produce documentation of the original mitigation install plus biannual verification testing, buyers commonly request a current verification test as a condition of closing.
Pennsylvania MLS — how should radon mitigation be disclosed in listing notes?
Pennsylvania MLS listings should disclose: (1) Whether radon testing has been performed and the date + result, (2) Whether a radon mitigation system is installed and the installation date + the PA DEP-certified mitigator who installed it, (3) Date of the most recent post-mitigation verification test and the result. Bright MLS (which covers the Philadelphia metro and most of eastern + central PA) and West Penn MLS (Pittsburgh metro + western PA) both include radon disclosure fields. The Pennsylvania Association of REALTORS has issued guidance encouraging full radon disclosure on all PA MLS listings. Sellers who have proactively tested and mitigated typically command faster offers and higher closing prices because radon uncertainty is removed from buyer negotiations.
How does Pennsylvania Radon Experts work with real estate agents?
Pennsylvania Radon Experts is a lead-routing service that connects realtors and their clients with NRPP-certified AND PA DEP-certified partner contractors statewide. Realtors can request testing or mitigation services directly through our contact form or by calling our routing line. Standard turnaround: response within 4 business hours, on-site visit within 2-7 days, post-mitigation verification testing included. We do not pay referral fees — Pennsylvania law and PA Real Estate Commission rules prohibit paying real estate licensees for unlicensed work referrals. We do provide expedited closing-timeline scheduling at no premium for licensed PA realtors working under PAR, GPAR, RAMP, Greater Lehigh Valley REALTORS, and other PA member boards.
PA Realtor? Set Up a Direct Partnership Line.
Realtors get expedited routing, transaction-grade documentation, and direct PA DEP-certified partner contractor access for every Pennsylvania listing. Call (717) 527-6206 or submit a quote request.