# St. Charles County Radon > A radon resource by Air Sense Environmental Website: https://stcharlescountyradon.com Language: en (UTF-8) Charset: UTF-8 Generated: 2026-10-09T17:29:27+00:00 --- # St. Charles County Radon A radon information website operated by Air Sense Environmental, not a separate business or local office. Radon testing and mitigation for St. Charles County homes, new builds included. Business entity: https://airsenseenvironmental.com/#organization Owner and named radon professional: Jake Lusby (registry name Jacob Lusby), Illinois IEMA Mitigation Professional license RNM20232346. This profile does not assert that Jake personally reviewed every page. Headquarters: 5237 Old Alton Edwardsville Rd, Edwardsville, IL 62025. Phone: 314-664-9807. Focus area: St. Charles, St. Peters, O'Fallon, MO, Wentzville, Lake Saint Louis, Cottleville, Dardenne Prairie, St. Paul, Weldon Spring, Foristell. Service areas are not office locations. # Detailed Content ## Pages ### Schedule With St. Charles County Radon **Summary:** Skip to contentA radon resource by Air Sense EnvironmentalSt. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / Contact St. Charles County RadonSt. Charles County Radon / Air SenseSchedule With St. Charles... **Content:** Skip to contentA radon resource by Air Sense Environmental St. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / Contact St. Charles County Radon St. Charles County Radon / Air Sense Schedule With St. Charles County Radon Have a builder-installed pipe, an existing sump system or a radon report to review? Call 314-664-9807 for Air Sense Environmental. For a St. Charles County property, explain what prompted the request and whether you are arranging testing or discussing mitigation. Request a visitTalk through your next step → Real Air Sense installation photography. 01 Understand the result02 Discuss the property03 Plan the next step What should you include in your request? Give the street address and community, such as St. Peters, Wentzville, Cottleville or Lake Saint Louis. If the inquiry is about new construction, say whether the builder left radon documents or labeled piping. Include a callback number and any approaching inspection date. Address of the St. Charles County property Existing report with every page included Builder notes or photos of labeled vent piping Sump location and basement access details Date by which you need the next step confirmed What needs to be confirmed before the visit? Ask which parts of the house must be accessible and whether the appointment is for a measurement or an installation assessment. Sending a request starts the scheduling discussion; wait for direct confirmation of the visit and its scope. For an occupied home or a purchase, arrange entry with the owner or responsible representative. Follow the testing professional’s preparation instructions rather than making changes around the equipment on your own. Have a report already? A report is most useful when it includes the measurement dates and room location. Keep those pages together. If an existing system is involved, provide its available installation records too; a photo of the gauge alone cannot establish the indoor radon concentration. Request your radon visit Your request goes to Air Sense Environmental. The team will confirm availability and the scope of work. Prefer to speak with someone? Call 314-664-9807. Air Sense Environmental on Google Maps Air Sense Environmental serves properties across the Greater St. Louis bi-state metro from Edwardsville, Illinois. This map shows the business behind this website, not a separate local office. 5237 Old Alton Edwardsville Rd, Edwardsville, IL 62025. Call 314-664-9807 to arrange service at your property. View Air Sense Environmental on Google Maps (opens in a new tab) Sources and further reading Air Sense Environmental: service information In this guide Keep reading Radon Mitigation in St. Charles CountyRadon Testing in St. Charles CountyPassive Radon Systems and New Construction in St. Charles CountyRadon Mitigation Through a Sump PitA real property. A specific plan. Bring your test report and property questions to Air Sense Environmental. Discuss your property → Your next step Make a plan for your property. Ask Air Sense Environmental about testing, system options or an existing radon concern. Request a visit → St. Charles County RadonThis site is operated by Air Sense Environmental, which provides the radon services described here. It is a service information site, not a separate local office. 5237 Old Alton Edwardsville Rd, Edwardsville, IL 62025 314-664-9807 Start here HomeAboutContact Radon decisions depend on a property-specific test and the applicable guidance. --- ### About St. Charles County Radon **Summary:** Skip to contentA radon resource by Air Sense EnvironmentalSt. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / About St. Charles County RadonSt. Charles County Radon / Air SenseAbout St. Charles County... **Content:** Skip to contentA radon resource by Air Sense Environmental St. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / About St. Charles County Radon St. Charles County Radon / Air Sense About St. Charles County Radon St. Charles County Radon brings together Air Sense Environmental’s guidance on testing, builder-installed radon pipes and sump-based mitigation. The pages are written for homeowners sorting out what is already in the house and what still needs to be measured. For service inquiries, reach Air Sense at 314-664-9807. Request a visitTalk through your next step → Real Air Sense installation photography. 01 Understand the result02 Discuss the property03 Plan the next step Who is behind this website? Air Sense Environmental operates this site and provides the services described. St. Charles County Radon names the geographic focus of the information, not a second contractor or a county office. Installation photographs come from the provider’s image collection. A pictured pipe or utility room illustrates a component; its inclusion does not establish a St. Charles County job location or a measured outcome. How should you use this information? Start with the page that matches your immediate question. A new-home owner can review passive piping, while a homeowner considering sump suction can prepare questions about drainage access. Neither guide replaces an assessment of the actual foundation. Save any builder documents about existing vent piping. Have the complete test results ready to discuss. Identify the sump, basement rooms and accessible equipment. How do you request a visit? Use the contact page or dial 314-664-9807 to describe the property. Mention whether the question concerns initial testing, activation of an existing pipe or a new mitigation proposal. Air Sense will need to confirm the appointment details. Sources and further reading Air Sense Environmental: service information In this guide Keep reading Radon Mitigation in St. Charles CountyRadon Testing in St. Charles CountyPassive Radon Systems and New Construction in St. Charles CountyRadon Mitigation Through a Sump PitA real property. A specific plan. Bring your test report and property questions to Air Sense Environmental. Discuss your property → Your next step Make a plan for your property. Ask Air Sense Environmental about testing, system options or an existing radon concern. Request a visit → St. Charles County RadonThis site is operated by Air Sense Environmental, which provides the radon services described here. It is a service information site, not a separate local office. 5237 Old Alton Edwardsville Rd, Edwardsville, IL 62025 314-664-9807 Start here HomeAboutContact Radon decisions depend on a property-specific test and the applicable guidance. --- ### Radon Mitigation Through a Sump Pit **Summary:** Skip to contentA radon resource by Air Sense EnvironmentalSt. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / Radon Mitigation With a Sump Pump: St. Charles CountySt. Charles County Radon / Air... **Content:** Skip to contentA radon resource by Air Sense Environmental St. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / Radon Mitigation With a Sump Pump: St. Charles County St. Charles County Radon / Air Sense Radon Mitigation Through a Sump Pit For radon mitigation, sump pump pits may serve as suction points for removing radon gas from beneath a basement. The radon mitigation system needs an airtight sump cover, a vent pipe and a fan, while the sump pump remains accessible for drainage maintenance. A contractor must inspect the pit and foundation before recommending this arrangement for a St. Charles County home. Request a visitTalk through your next step → Real Air Sense installation photography. 01 Understand the result02 Discuss the property03 Plan the next step Can a sump pit be used for radon mitigation? A sump can be part of a radon reduction design. EPA’s consumer guide identifies sump suction as an approach for some basement homes. Suitability depends on the actual pit and connected drainage arrangement; a pump in the basement does not automatically make it the best suction location. For a St. Peters or Cottleville home with a finished lower level, take clear photos of the pit and surrounding space before the visit. Show the discharge piping, electrical cords and any backup equipment. Do not disconnect or modify those items to prepare for an estimate. Identify the main and backup pumps. Show the lid and pipe penetrations. Describe any history of water entry. Ask whether another suction location is preferable. What does a sealed sump lid do? A sealed sump lid separates the pit opening from the room while allowing the designed penetrations. The lid is part of the system detail, not a replacement for a radon fan or a radon test. The connection needs to accommodate the equipment that actually occupies the pit. Ask how the lid can be opened when a pump needs service. A useful proposal explains both the seal and the access method. A homeowner should not be left guessing which fasteners or sealants are intended to be removed during routine maintenance. If an existing cover is loose or damaged, photograph it and request a review. Avoid treating tape around a lid as proof that the radon system is complete. Document the repair and arrange whatever verification the professional recommends. Confirm a service access method. Identify how penetrations are sealed. Keep the installer’s instructions near the equipment. Will radon mitigation affect my sump pump? A suitable design must keep the pump available for its drainage function. Discuss pump replacement access, float movement, power supply and any backup equipment before accepting a proposed lid or pipe arrangement. These are inspection questions, not details to leave until the pump needs repair. Tell the contractor if another company maintains the sump. Both sets of service instructions should remain understandable to the next person working there. When maintenance requires opening a sealed lid, ask who will restore the seal and check the radon installation afterward. Call Air Sense Environmental at 314-664-9807 with your test result and photographs. The visit can establish whether sump suction is an appropriate proposal or whether another route should be evaluated. No particular sump conversion is promised without reviewing the house. Preserve pump maintenance records. Explain backup battery or alarm equipment. Record who restores seals after servicing. Keep the follow-up radon report with the installation documents. Questions before you book Does a sealed sump lid alone fix radon?A lid alone does not establish that radon has been reduced. Evaluate the complete system and use a radon test to verify the indoor concentration. Should I remove the cover before an estimate?Ask the provider what access is needed. Photos are a useful starting point, and the existing pump equipment should remain intact. Is the liquid gauge a radon reading?No. A system pressure indicator is different from a radon measurement. A separate test establishes the radon concentration in the air. Sources and further reading EPA: consumer guide to radon reduction In this guide Keep reading Radon Mitigation in St. Charles CountyRadon Testing in St. Charles CountyPassive Radon Systems and New Construction in St. Charles CountyA real property. A specific plan. Bring your test report and property questions to Air Sense Environmental. Discuss your property → Your next step Make a plan for your property. Ask Air Sense Environmental about testing, system options or an existing radon concern. Request a visit → St. Charles County RadonThis site is operated by Air Sense Environmental, which provides the radon services described here. It is a service information site, not a separate local office. 5237 Old Alton Edwardsville Rd, Edwardsville, IL 62025 314-664-9807 Start here HomeAboutContact Radon decisions depend on a property-specific test and the applicable guidance. --- ### Passive Radon Systems and New Construction in St. Charles County **Summary:** Skip to contentA radon resource by Air Sense EnvironmentalSt. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / Passive Radon Systems in New St. Charles County HomesSt. Charles County Radon / Air... **Content:** Skip to contentA radon resource by Air Sense Environmental St. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / Passive Radon Systems in New St. Charles County Homes St. Charles County Radon / Air Sense Passive Radon Systems and New Construction in St. Charles County A passive radon system is a radon vent pipe installed without an operating radon fan. In a new St. Charles County home, inspect the system and test indoor radon before assuming that passive ventilation is sufficient. If activation is needed, the contractor evaluates the existing piping, suction connection and fan location, then confirms the result with a post-mitigation radon test. Request a visitTalk through your next step → Real Air Sense installation photography. 01 Understand the result02 Discuss the property03 Plan the next step Does a passive radon system work? A passive system can reduce radon, but its performance must be checked with a test. EPA’s radon-resistant construction guidance describes a vent pipe and other foundation features, with provision for adding a fan when needed. Ask the builder for the as-built route, foundation details and any test report. A pipe label alone leaves important questions unanswered. Determine where the pipe begins, where it discharges and whether it passes through an accessible area. Keep those details with the house records. Request the radon construction documents. Find any pre-occupancy test report. Identify whether a fan has already been added. How do you convert a passive radon system to active? Conversion requires an assessment of the existing installation before a fan is specified. The professional needs to evaluate the complete route and its condition rather than treating the visible attic pipe as the whole system. Ask whether the quote includes inspection of the existing piping, electrical arrangements, labeling and a verification test. A missing component or inaccessible section may affect scope. Air Sense can discuss your existing pipe and the work appropriate to the address; a conversion price is quoted after review, not inferred from a photograph. Photograph accessible pipe sections. Show the proposed fan access location. Ask who handles electrical work. Confirm how the completed system will be tested. Is radon common in new construction homes? New construction does not remove the need for radon testing. The fact that a house is new tells you when it was built, not its measured indoor concentration. Avoid using a neighborhood’s building age as a shortcut for deciding whether to test. In a developing Wentzville or Lake Saint Louis neighborhood, ask about your own lot and construction records. The same floor plan may be built with different foundation arrangements. There is no sound basis here to claim newer St. Charles County homes are always worse than older ones. How do you prevent radon in new construction? Plan radon-resistant features before foundation and finish work make access difficult. EPA’s construction guidance includes a gas-permeable layer, soil-gas barrier, sealed openings, vent pipe and electrical provision for a future fan. Have the builder identify the applicable design and inspection requirements for the project. For an owner, the practical task is to keep the radon plan visible through construction. Request drawings before the slab is poured and photographs before walls close. Agree on who arranges testing once the building is ready. A later basement finish should preserve access to equipment and identification labels. Keep pre-slab photographs. Preserve access to the fan location. Ask for clear pipe identification. Record the final test and operating instructions. Questions before you book Is activating a passive system always a simple fan installation?No. The existing route and foundation connection need inspection. Missing or unsuitable components can change the work required. Should I finish the basement before reviewing the pipe?Review the pipe and testing plan before closing walls or ceilings. That gives the contractor a chance to identify access conflicts while changes are easier. Sources and further reading EPA: radon-resistant constructionEPA: home buyer and seller radon guide In this guide Keep reading Radon Mitigation in St. Charles CountyRadon Testing in St. Charles CountyRadon Mitigation Through a Sump PitA real property. A specific plan. Bring your test report and property questions to Air Sense Environmental. Discuss your property → Your next step Make a plan for your property. Ask Air Sense Environmental about testing, system options or an existing radon concern. Request a visit → St. Charles County RadonThis site is operated by Air Sense Environmental, which provides the radon services described here. It is a service information site, not a separate local office. 5237 Old Alton Edwardsville Rd, Edwardsville, IL 62025 314-664-9807 Start here HomeAboutContact Radon decisions depend on a property-specific test and the applicable guidance. --- ### Radon Testing in St. Charles County **Summary:** Skip to contentA radon resource by Air Sense EnvironmentalSt. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / Radon Testing in St. Charles County, MOSt. Charles County Radon / Air SenseRadon Testing... **Content:** Skip to contentA radon resource by Air Sense Environmental St. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807Home / Radon Testing in St. Charles County, MO St. Charles County Radon / Air Sense Radon Testing in St. Charles County For radon testing, St. Charles County homeowners need a measurement of their own indoor air. A nearby result, new construction or a covered sump cannot supply that answer. Discuss the purpose of the radon test, the lower-level rooms and any transaction deadline with Air Sense Environmental so the measurement plan fits the property and the report you need. Request a visitTalk through your next step → Real Air Sense installation photography. 01 Understand the result02 Discuss the property03 Plan the next step How do you test a St. Charles County home for radon? Arrange the test around the house layout and its purpose. An owner planning a basement bedroom has a different decision to make from a buyer working against an inspection deadline. Tell the measurement professional about both before equipment is placed. For a St. Charles County home with a builder-installed pipe, include the builder paperwork. Record whether there is a fan and whether it is operating. A baseline test and a test of an operating system answer different questions, so the report should make the conditions clear. Provide the floor plan or a simple sketch. Identify rooms above a slab or crawl space. Mention an upcoming sale or renovation. Keep the device location undisturbed. Is radon testing really necessary? Testing is how you establish a result for the actual home. Missouri DHSS provides county-level residential results through its dashboard, including St. Charles County. A county average cannot substitute for a measurement in your basement. A low result from a nearby O’Fallon property says little about the operating conditions in yours. Even similar-looking houses can have different foundation details. When reviewing a past report, check the address, date, test location and duration before deciding whether it answers the current question. Check that the report names the correct property. Find the measurement start and end dates. Confirm the room and level measured. What is a good radon test result? Lower radon concentrations are preferable. EPA recommends fixing homes at 4.0 pCi/L or above and considering reduction between 2 and 4 pCi/L. These are decision guides, not a declaration that every result below 4 is risk-free. Ask what follow-up is appropriate for the result and test method. Keep the complete report rather than a text message containing only the number. If mitigation is proposed, the original report gives the installer a documented starting point and helps organize the later verification. Can you live in the house during a radon test? Ordinary occupancy can generally continue while the test instructions are followed. Everyone using the property should receive the same directions about windows, doors, equipment and the device. Ask the tester to explain any activity that could interfere with the measurement. For a busy household, select a location where children, pets and cleaning routines will not move the equipment. If a contractor is working in the basement, disclose that before the test begins. Record disruptions promptly rather than trying to correct a questionable result afterward. Share instructions with all occupants. Keep visitors from handling the device. Report ventilation changes to the tester. Questions before you book Can I use a result from the builder?Keep the builder’s report and check its date, location and conditions. Ask whether it represents the home as it is now occupied and whether more testing is appropriate. Can I book around a home inspection?Provide the inspection deadline when requesting a visit. Confirm both the equipment schedule and the report delivery time before relying on a date. Sources and further reading Missouri residential radon dashboardEPA: radon action levelEPA: home buyer and seller radon guide In this guide Keep reading Radon Mitigation in St. Charles CountyPassive Radon Systems and New Construction in St. Charles CountyRadon Mitigation Through a Sump PitA real property. A specific plan. Bring your test report and property questions to Air Sense Environmental. Discuss your property → Your next step Make a plan for your property. Ask Air Sense Environmental about testing, system options or an existing radon concern. Request a visit → St. Charles County RadonThis site is operated by Air Sense Environmental, which provides the radon services described here. It is a service information site, not a separate local office. 5237 Old Alton Edwardsville Rd, Edwardsville, IL 62025 314-664-9807 Start here HomeAboutContact Radon decisions depend on a property-specific test and the applicable guidance. --- ### Radon Mitigation in St. Charles County **Summary:** Skip to contentA radon resource by Air Sense EnvironmentalSt. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807St. Charles County Radon / Air SenseRadon Mitigation in St. Charles CountyFor radon mitigation, St. Charles,... **Content:** Skip to contentA radon resource by Air Sense Environmental St. Charles County RadonRadon guidesAboutSchedule a visit314-664-9807St. Charles County Radon / Air Sense Radon Mitigation in St. Charles County For radon mitigation, St. Charles, MO homeowners need a plan based on the test result and the foundation beneath the house. Air Sense Environmental can discuss radon reduction for an existing home or a builder-installed passive system. Review which foundation areas the proposed suction system will reach, where the fan and vent will go, and how a follow-up radon test will verify performance. Request a visitTalk through your next step → Real Air Sense installation photography. 01 Understand the result02 Discuss the property03 Plan the next step Why do St. Charles County homes test high for radon? Radon can enter where a house meets the ground. Missouri DHSS reports radon in every county; its county dashboard includes St. Charles County testing data. Those measurements describe tested homes, not a guarantee about the house beside them. For a homeowner in St. Peters or Wentzville, a newer construction date is no substitute for a result. Bring the report and any builder documents to the assessment. A visible radon pipe is useful information, but it does not tell you whether a fan is present or whether the system has been tested. Locate the current test report. Photograph any pipe labeled for radon. Note basement additions and finished rooms. How is radon mitigated in a newer St. Charles County home? A mitigation plan connects the foundation assessment to a proposed suction point and discharge route. Existing drain tile, a sump and passive piping are details to inspect, not reasons to promise a particular installation before visiting. Ask for the proposed route to be marked out before agreeing to the work. A garage route, utility-room route and exterior route can involve different access and finish work. For an older St. Charles property with irregular foundation walls, bring photographs rather than assuming a new-subdivision layout applies. Identify each slab and crawl space. Discuss access to the sump and electrical supply. Record who arranges the post-installation test. What does radon mitigation cost in St. Charles County? Air Sense publishes a standard active sub-slab system range of $1,100 to $3,200. That is a planning range, not a St. Charles County fixed price. Ask for a written scope identifying the route, suction points, electrical work and testing arrangements. A passive-system assessment or unusual foundation needs its own quote. Comparing only a bottom-line number can hide differences in included finish repairs, access work or follow-up responsibilities. How do you check a radon contractor in St. Charles County? Check the individual doing the work and ask how the result will be verified. Request current credentials directly and verify them with the issuing organization. An attractive pipe installation and a running fan do not replace a radon measurement. Ask who will perform the installation. Request a clear description of testing responsibility. Keep equipment and warranty documents together. Communities we serve in St. Charles County Air Sense Environmental is the provider behind this website. Discuss your address, project type and timing when requesting a visit. City names help organize an inquiry; they are not separate offices or promises of immediate availability. St. Charles and St. Peters O’Fallon, Missouri and Wentzville Lake Saint Louis and Cottleville Questions before you book Does a passive pipe mean my house has been mitigated?A passive pipe is a radon-resistant feature. Its presence does not demonstrate the current radon concentration. Find the test report and ask whether the pipe has an active fan. What should I send with an estimate request?Send the property address, radon report, foundation description and photos of existing piping or the sump. Mention any inspection deadline. Sources and further reading Missouri DHSS: radon and county testing dataAir Sense Environmental: service information In this guide Keep reading Radon Testing in St. Charles CountyPassive Radon Systems and New Construction in St. Charles CountyRadon Mitigation Through a Sump PitA real property. A specific plan. Bring your test report and property questions to Air Sense Environmental. Discuss your property → Your next step Make a plan for your property. Ask Air Sense Environmental about testing, system options or an existing radon concern. Request a visit → St. Charles County RadonThis site is operated by Air Sense Environmental, which provides the radon services described here. It is a service information site, not a separate local office. 5237 Old Alton Edwardsville Rd, Edwardsville, IL 62025 314-664-9807 Start here HomeAboutContact Radon decisions depend on a property-specific test and the applicable guidance. --- --- # Navigation - [Documentation Overview](https://stcharlescountyradon.com/llms.txt): Return to the main documentation index ## Identity and source records - [Air Sense Environmental](https://airsenseenvironmental.com/) - [Jake Lusby profile](https://airsenseenvironmental.com/author/jakelusby/) - [IEMA issuer record](https://public.iema.state.il.us/Radon/Home/LicenseIndex?Employer=Air%20Sense%20Environmental&LicenseTypeID=0&CountyID=0&SearchString=&PageSize=20) - [Website entity map](https://stcharlescountyradon.com/entitymap.json) - [About this website](https://stcharlescountyradon.com/about/) - [Contact](https://stcharlescountyradon.com/contact/) Follow-up radon testing is recommended after mitigation. Confirm the provider, price, timing and scope in the written estimate; it is not automatically included. No blanket free-adjustment or performance guarantee is stated here.