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Mr Radon – Southern Ontario

Health Canada recommends that everyone test their homes for lung cancer causing radon gas. In London it is important to conduct a radon test of your home and have a radon mitigation system installed should your levels be high. There are three different guidance’s for a mitigation decision. Health Canada says we should stay below 200 Bq/m3. The EPA says 148 Bq/m3 or that U.S. citizens should be concerned when a home is between 74 and 148 Bq/m3. The World Health Organization’s reference level is below 100 Bq/m3. Health Canada’s cross Canada survey concluded that 7% of all homes are exposed to elevated levels of radon above 200 Bq/m3. You may be part of that percentage in London. All homes (old and new, large and small) have the possibility of being high in radon. A neighbour’s low test result does not mean that your home is at low levels. Reduce your risk level in London by conducting a radon test.

Have a question about radon testing for homes, businesses and public buildings in London or Southern Ontario?

Call Toll Free 1-888-472-3664


Mr. Radon® is the industry leader in providing radon mitigation systems and radon testing in Ontario and services London and its surrounding area.

All of Mr. Radon®’s mitigations are conducted by mitigators certified by C-NRPP. The Canadian National Radon Protection Program (C-NRPP) is recognized by Health Canada as the body confirming the qualification of radon testers and radon mitigators.

Mr. Radon® services London and would be pleased to answer any questions you may have regarding testing or radon mitigation in your area.

In addition to providing services to London Ontario, Mr. Radon® also speaks at functions across Canada, teaches a Radon Measurement Technologist Course and the owner, Bob Wood, is Past President of CARST – the Canadian Association of Radon Scientists and Technologists.

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The Impact of Radon Exposure

Virginia’s Story – The Impact of Radon Exposure

Mr. Radon®’s Bob Wood featured in Ontario Technologist

Mr. Radon®’s Bob Wood featured in an article in the July/August issue of Ontario Technologist.

Click here to read.

Radon linked to more lung cancer deaths than previously thought

Reducing gas levels in homes could save hundreds of lives annually, Health Canada says

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Radioactive substance causes 16% of lung cancer cases, Health Canada says

About 3,200 Canadians a year likely die because of exposure to radon, produced naturally when uranium in the soil degrades, say the study authors.

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Is your child breathing radon gas at school? MSNBC Reports.

MSNBC Reports on the health risks of Radon gas in schools.

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New Radon Legislation in the works for Ontario

New radon gas legislation was read in the Ontario legislature today.

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Kanata residents share radon gas concerns

Residents of west Ottawa gathered Thursday where a Health Canada official informed them of all concerns regarding radon gas levels in their homes.

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Cancer Survivors Against Radon

Cansar.org is working with communities to increase radon awareness.

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Radon, the Invisible Menace – CBC News

CBC News covers the menace of radon gas.

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Radon Awareness

U.S. Environmental Protection Agency Video: NFL Player Chester Pitts discusses the dangers of Radon. (

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