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Verified Reviews for Radon Detection And Reduction pros in Wofford Heights, CA

*The Angi rating for Radon Detection And Reduction companies in Wofford Heights, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Wofford Heights, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on January 10, 2026

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Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

Avatar for Legion Property Inspections LLC

Legion Property Inspections LLC

5.00(
5
)

Legion Property Inspections LLC

5.00(
5
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Buying or selling a home is a stressful event, so we are committed to providing you with the best possible inspection and explanation of results so that you can make a fully informed decision. We are trained and equipped to evaluate a wide variety of property issues, including full home inspections, mold/radon/water testing, and Energy Score evaluations. All of our inspections are thorough and complete, and utilize the most advanced tools and techniques. Every full home inspection includes a FREE thermal inspection to help identify hidden moisture, missing insulation, or burrowed insects ($150-200 value). Finally, we are so certain of your satisfaction that all of our inspections are backed by our legendary 200% Guarantee.

"We needed a last minute roof inspection for an escrow and he came out quickly and did the job. We had the results the next day and although we ended up needing yet another inspection by a roofer, it helped us close an exhaustive escrow."

Daryle H on September 2018

Buying or selling a home is a stressful event, so we are committed to providing you with the best possible inspection and explanation of results so that you can make a fully informed decision. We are trained and equipped to evaluate a wide variety of property issues, including full home inspections, mold/radon/water testing, and Energy Score evaluations. All of our inspections are thorough and complete, and utilize the most advanced tools and techniques. Every full home inspection includes a FREE thermal inspection to help identify hidden moisture, missing insulation, or burrowed insects ($150-200 value). Finally, we are so certain of your satisfaction that all of our inspections are backed by our legendary 200% Guarantee.

"We needed a last minute roof inspection for an escrow and he came out quickly and did the job. We had the results the next day and although we ended up needing yet another inspection by a roofer, it helped us close an exhaustive escrow."

Daryle H on September 2018

Avatar for Heartland Environmental Services

Heartland Environmental Services

No reviews yet

Heartland Environmental Services

No reviews yet
Free onsite estimate

Heartland Environmental Services serves the entire Tulare area with the best environmental services available. We are a multi-functional inspection, remediation and restoration company that offers the best service at competitive prices. Any form of environmental damage you have experienced on your property, whether residential or commercial, is our specialty; from mold damage to stagnant water, fire and smoke, or any other harmful substances or environmental factors. Our website offers more information on the services we offer, as well as information on the negative affects of mold and other environmental hazards. You can also contact a customer service representative Monday through Friday, 8am to 5pm, who can answer any specific questions you may have, as well as schedule an appointment with one of our technicians.

Heartland Environmental Services serves the entire Tulare area with the best environmental services available. We are a multi-functional inspection, remediation and restoration company that offers the best service at competitive prices. Any form of environmental damage you have experienced on your property, whether residential or commercial, is our specialty; from mold damage to stagnant water, fire and smoke, or any other harmful substances or environmental factors. Our website offers more information on the services we offer, as well as information on the negative affects of mold and other environmental hazards. You can also contact a customer service representative Monday through Friday, 8am to 5pm, who can answer any specific questions you may have, as well as schedule an appointment with one of our technicians.

Radon Detection and Reduction questions, answered by experts

Results from radon testing usually take a week to process after the test period ends, with expedited services sometimes available for urgent cases.

Costs for radon detection services typically range from $150 to $250, depending on the testing method and whether a professional assessment is required.

You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional. 

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The Wofford Heights, CA homeowners’ guide to radon detection and reduction services

From average costs to expert advice, get all the answers you need to get your job done.

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