Radon Mitigation in York, PA

Active Radon Reduction Systems

Sub-Slab Depressurization

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Controlling Radon Beneath the Slab

Sub-slab depressurization is a common radon mitigation approach for homes with concrete slab areas. The basic goal is to create lower pressure beneath the slab so radon-bearing soil gas is drawn into a controlled piping system rather than entering occupied areas of the house.

The details matter. Slab layout, foundation walls, additions, soil conditions, existing openings, and possible pipe and fan locations can affect system planning. We evaluate the York County property before determining the appropriate configuration.

York County Radon Mitigation Is Proud to Serve York County

Sub-Slab Depressurization

How Sub-Slab Depressurization Works

A properly planned system establishes suction beneath the concrete slab and uses a continuously operating fan to move collected soil gas through dedicated piping to an appropriate exterior discharge point. System design depends on the home's actual foundation.

Suction Point Planning

Suction locations are selected according to the slab and foundation configuration so pressure can be established beneath the appropriate area.

Radon Piping

Dedicated piping carries soil gas from beneath the slab through the mitigation system.

Radon Fan

The fan provides continuous suction for an active system and is selected as part of the overall system design.

System Discharge

The piping route and discharge location are considered as part of a complete installation.

Verification

Post-mitigation testing measures radon after the system is operating and provides the information needed to evaluate performance.

Sub-Slab Depressurization Cost Factors

ServiceEstimated CostAverage
Single-foundation systemVaries by propertySite estimate required
Multiple slab zonesVaries by complexitySite estimate required
System modificationVaries by existing setupInspection required

System cost depends on foundation size and configuration, suction requirements, routing, access, electrical needs, finished areas, and other property-specific conditions.

Sub-Slab Depressurization

Why Choose Us for Sub-Slab Depressurization?

Foundation-first planning

We start with the actual slab and foundation configuration before determining the system approach.

Complete-system focus

Suction points, piping, fan operation, routing, and verification are considered as parts of one system.

York County service

We work with homeowners throughout York County and surrounding local communities.

Contact Us Today for a Free Estimate

Have an elevated radon result in a basement or slab-on-grade home? Request a mitigation estimate.

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Sub-Slab Depressurization

Sub-Slab Depressurization Process

Review radon testing

We begin with the radon concern and available test results.

Evaluate the slab

Foundation zones, access, finished spaces, additions, and possible routing are considered.

Plan suction and piping

The system configuration is developed around the foundation conditions.

Install the active system

Suction components, piping, fan, and related system elements are installed and placed into operation.

Complete verification testing

Post-mitigation testing measures radon after the system is running.

Our Services in York, PA