Residential & Commercial Specialist
VIDEO - We Are The Industry Standard for Radon Removal and Risk Reduction
Boulder Edge can help settle your home sales quicker and improve the safety of your home. You can breathe easier knowing radon and other health threats have been minimized using EPA & NRSB approved methods.
Serving Northern Virginia, Loudoun, Fairfax, North Prince William Counties
- Serving Northern Virginia for over 20 years
- Fully Licensed, Insured & Certified in VA, MD, DC.
- Residential & Commercial Radon Specialist
- Results Below EPA Standards Guaranteed in Writing with Transferable Warranty
- Locally Owned and Operated
- BBB A+ Rated
We specialize in Radon Mitigation, radon testing options for homeowners and real estate transactions.
Technology in Reducing Radon
- Current radon mitigation technology has developed reliable, proven techniques for reducing radon levels in virtually any home and property, including new construction.
- Radon mitigation systems create a closed path (via PVC pipe) for radon gas to follow from entry at concrete slab to exit above roofline.
- A radon fan operates 24/7/365 to pull radon gas from below concrete slab through PVC piping to exit the top and outside where it dissipates outside and no longer in your home.
- Radon mitigation system installation should be installed in accordance with the state license/certification standards or guidance. EPA recommends hiring a radon abatement service certified by either the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB). See "About Us" for our certified credentials.
Key Approaches to Radon Mitigation Systems
Depends on home structure and property. Typical home radon mitigation techniques include: Active-slab depressurization system (ASD), and Sub-membrane depressurization (SMD) for dirt crawlspaces.
Active-Slab Depressurization (ASD)
- ASD is the most common method of radon remediation. About 95% of homes in the greater DC area use this type of system. An ASD system includes a radon fan that runs continuously to depressurize the area under a home's concrete slab to expel it outside via exhaust. Radon gas exhaust path is configured to meet all US EPA Radon Mitigation Standards (RMS). This is the most effective and reliable radon reduction approach that radon mitigation professionals use.
- ASD is meant for properties with or without basements. It is also the primary system for any home with an encapsulated crawlspace.
Exterior Radon Mitigation Systems
Interior - Drill in Basement to Access Radon Gas
Interior - Sump Lid Access to Radon Gas
About Sub-Membrane Depressurization (SMD)
- SMD is the preferred radon mitigation method for crawlspaces. It encapsulates and depressurizes the space using a high-density polyethylene vapor barrier that is placed over above-ground piping or an installed soil gas mat.
- During the encapsulation process, perforated and corrugated piping is installed on the floor of a crawlspace, and connected to a radon fan. The vapor barrier seams and edges are sealed to the foundation wall and beams. Then, the radon mitigation system can be connected to the crawlspace piping.
- Suction depressurizes the area beneath the vapor barrier, redirecting radon gas so it can move through the exhaust pipe and be expelled outside the home.
- This is best for properties that only have a crawlspace (i.e. no basement), or have a crawlspace in addition to a basement.
Specific Elements of Certified Radon Mitigation Systems:
- Cracks or openings in unfinished basement areas should be sealed, and sump cover lids should be sealed to prevent any loss of vacuum pressure.
- Depending on the property, radon fans may be located in the attic, or mounted outside on a property’s exterior, or, if available, a garage attic.
- The system should include a manometer gauge (visual vacuum "U"-tube indicator) located on pipe side in a prominent location near the building or home’s entry point. This enables an occupant to easily see if fan is functioning properly.
- The radon fan’s power must be set up in accordance with local electric codes.
- All portions of the radon mitigation system fan and above entry point on the pipe must be labeled.
- The system must include a simple instruction manual sheet, with warranties provided to the homeowner.
- New radon mitigation systems should be retested no sooner than 91 days after installation to verify reduction. The US EPA recommends testing every two years.
Safety and Work Environment
The Boulder Edge team takes your health and well-being seriously. We understand the significance of the role we play in minimizing risk for our customers through radon mitigation.
That awareness of risk extends to our on-site practices. We always want to ensure a safe work environment during the mitigation process, so Boulder Edge customarily implements US EPA Radon Mitigation Standards (RMS), Occupational Safety and Health Administration (OSHA) standards (equipped with air-quality, dust control, electrical, and chemical protection). That includes the use of Personal Protective Equipment (PPE) as an essential safety component of our services.
Our code-compliant procedure includes following all building codes regarding penetrating any firewall and re-supporting any structural bearing box joist.
All electrical work should meet or exceed local codes. The glues, solvents and materials that are used may be hazardous. You should not be in the work area during the installation. Material Safety Data Sheets (MSDS) will be supplied upon written request.
While work is in progress the windows will be opened and portable ventilation systems may be used. Workers should wear proper clothing suitable for this type of work, and wear eye, ear, and respiratory protection when necessary. Workers should be monitored for radon exposure during the work.
Boulder Edge’s priority is providing you with high-quality,
high-value solutions that put your health and safety first.
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