Radon Mitigation in Montrose
Elevated radon potential. Glaciated Northern Tier uplands carry Pleistocene till over Devonian shale, driving the widespread indoor radon exceedances that place Susquehanna County in EPA Zone 1 — the highest-risk tier.
High Radon Risk Area
Montrose sits in EPA Zone 1 — testing is recommended for every home regardless of age or foundation type.
Local Geology & Risk Factors
Montrose is located in an area with Allegheny Plateau / Northern Tier Glaciated Uplands geology, which contributes to elevated radon levels. The Pennsylvania DEP identifies this region as having significant radon potential due to uranium-bearing rock formations.
Testing is essential because radon levels can vary significantly between neighboring homes based on construction, soil permeability, and ventilation.
See Pennsylvania radon levels and EPA radon zone classifications →
Quick Facts
- Median home value: $160,000 · Median year built: 1938
- Population: 1,427
- Foundation types: Basement (most common); Crawlspace (moderate); Slab-on-grade (varies)
Susquehanna County Context
Montrose is a municipality of Susquehanna County, EPA Zone 1. Zone designation is assigned at the county level, so Montrose inherits its classification; countywide aggregate figures live on the county page.
See Susquehanna County radon aggregate data →Measured Radon Data for Montrose
Source: PA DEP RadonZip Tool, January 1990 – December 2025 · Updated 2026-05-20
Radon Mitigation Cost in Montrose
Active sub-slab depressurization (ASD) systems in Montrose typically cost $950–$2,050. Standard basement installs on modern poured concrete fall at the lower end; historic foundations, block-wall depressurization, multi-point suction, and crawlspace encapsulation push costs higher.
Foundations covered locally
- Basement (most common)
- Crawlspace (moderate)
- Slab-on-grade (varies)
Systems used in the region
- Active sub-slab depressurization
- Sump pit depressurization
- Passive soil depressurization
Certification & Compliance
All Pennsylvania radon testing and mitigation professionals must hold active PA DEP certification. Ask any contractor for their certification number and verify it before signing.
Pennsylvania's Real Estate Seller Disclosure Law (68 Pa.C.S. §§ 7301–7315) requires sellers to disclose known material defects to buyers under § 7303; the mandated disclosure form records radon under § 7304(b)(14). Sellers who have never tested are not compelled to test — § 7308 imposes no affirmative duty to investigate — but pre-listing testing is standard practice across most PA markets.
Under 25 Pa. Code § 240 — the Pennsylvania chapter governing radon certification — every radon service provider working in the Commonwealth must hold current DEP certification. Verify the contractor's status via the DEP Radon Services Directory before hiring.
Verify Contractor Certification — PA DEP Official Directory for Montrose, Susquehanna County
View PA DEP Certified Contractor DirectoryThe PA Department of Environmental Protection maintains the official list of certified radon testers and mitigators, sorted by county and updated monthly. Always verify certification before hiring any contractor.
Directory resource provided by PA DEP Bureau of Radiation Protection, Radon Division.
Frequently Asked Questions
Why is radon a concern in Montrose, PA?
Montrose sits in the glaciated Northern Tier uplands, where Pleistocene till caps Devonian shale formations including the Marcellus. EPA classifies Susquehanna County as Zone 1 — the highest radon potential tier — and approximately 28% of tested homes exceed 4.0 pCi/L. Elevated readings concentrate in older basement homes and along creek-valley corridors.
What does radon mitigation cost in Susquehanna County?
Most Susquehanna County mitigation systems run $950–$2,050 installed. Active sub-slab depressurization is the standard approach. The glaciated terrain means most homes have basement foundations, which work well with conventional mitigation systems.
Does Marcellus gas development affect indoor radon in Susquehanna County?
Surface gas operations do not directly elevate indoor radon. But Susquehanna County hosts intensive Marcellus development, and the underlying shale produces baseline soil-gas radon. Test every home regardless of drilling activity — individual results vary widely based on foundation and ventilation conditions.
What's the average radon level in Montrose?
Montrose's DEP-recorded basement average is 5.99 pCi/L across 449 tests. The EPA action level for mitigation is 4.0 pCi/L, so a sizable share of Montrose homes exceed the threshold. The highest single result in the local dataset is 85.6 pCi/L.
Do homes in Montrose need to be tested for radon?
Susquehanna County is EPA Zone 1 — the highest radon-potential classification — so every home in Montrose should be tested regardless of age, foundation type, or neighborhood. Short-term charcoal or continuous monitor tests take 48–96 hours and cost $15–$50; long-term alpha-track tests run 90 days and better represent annual averages. If the result meets or exceeds 4.0 pCi/L, mitigation by a DEP-certified professional is recommended.
How much does radon mitigation cost in Montrose?
Active sub-slab depressurization (ASD) systems in the Montrose area typically cost $950–$2,050. Standard basement installations on modern poured-concrete foundations fall at the lower end; historic foundations, block-wall depressurization, multi-point suction, and crawlspace encapsulation push costs toward the upper end. All work must be performed by a DEP-certified mitigation professional under 25 Pa. Code § 240.
Is radon disclosure required when selling a home in Montrose?
Pennsylvania's Real Estate Seller Disclosure Law (68 Pa.C.S. §§ 7301–7315) requires residential sellers to disclose known material defects to buyers (§ 7303). The state-mandated disclosure form covers 'presence of hazardous substances' at § 7304(b)(14) — where any known elevated radon test result or existing mitigation system is recorded. Sellers who have never tested are not required to test: § 7308 imposes no affirmative duty to investigate. In Montrose, the practical reality is that most buyers request radon testing during the inspection contingency period. Sellers who test and mitigate before listing eliminate the most common contract contingency and preserve negotiating position.
Which ZIP codes does the Montrose radon data cover?
The Montrose radon dataset on this page covers ZIP code 18801. These are the ZCTAs assigned to Montrose in the Census 2020 ZCTA-to-Place relationship file and used for the PA DEP RadonZip Tool aggregation. Neighboring ZIP codes belong to adjacent municipalities and appear on their own PA Radon Hub pages.
Are Montrose Area School District buildings subject to SB 760?
Susquehanna County is in EPA Zone 1 and is served by 6 school districts, including Montrose Area School District. Pennsylvania Senate Bill 760, if enacted as drafted, would apply to all public school buildings in Susquehanna County regardless of which district operates them. The bill remains in committee. Buildings in Zone 1 counties like Susquehanna County would be highest priority under the proposed framework. If SB 760 is enacted, mitigation timelines, thresholds, and qualifying buildings would be set by the final bill text and any subsequent DEP implementing regulations. PA Radon Hub tracks this legislation; specific deadlines remain pending.
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