Guelph radon mitigation, for a city where 1 in 5 tested homes were over the limit.

More than in most of Ontario. Health Canada residential survey results cited by the City of Guelph found that 1 in 5 of the 131 randomly tested buildings within the City of Guelph exceeded Canada's 200 Bq/m3 guideline. Wellington-Dufferin-Guelph Public Health reports 15% across the wider region, compared with roughly 7% of homes nationally. That is more than double the national rate.

Because it is a real assessment by a C-NRPP certified professional rather than a sales visit. You get a paid, educational walkthrough of your home, an explanation of your options, and a firm written price for the work. If you go ahead with the mitigation, the inspection fee is credited back in full against the job, so it ends up costing you nothing.

No. Most people come to us with a result already in hand and that is the most direct route, but you do not have to wait for one. Plenty of homeowners mitigate because a neighbour tested high, or simply because they want the protection in place. Because our guarantee is an absolute number rather than a percentage reduction, it still means something without a "before" reading: the post-install test shows exactly where your home has landed.

Almost none, and that is deliberate. The system is designed so you can forget about it: there is nothing to service, nothing to empty and nothing to schedule. The fan is the only component with a service life, which is why we specify a good quality one rather than the cheapest that meets spec. If one ever does fail it is a straightforward replacement. We suggest retesting every couple of years or after major renovations, simply because that is good practice.

Yes. The City of Guelph has operated a Radon Gas Mitigation Program since September 1, 2015. For building permits issued after December 31, 2024, new Part 9 residential buildings require a full active sub-slab depressurization system and a soil gas barrier, and the requirement extends to additions over 20 square metres. New ICI and Part 3 multi-residential buildings must also complete long term testing of at least 91 days during winter.

It means none of the current requirements were applied when your house was built. There is no soil gas barrier, no depressurization rough-in, no fan and no test result on file. Most Guelph housing falls into this category, and it is the housing in which the 1 in 5 figure was measured. A test is the only way to know your level.

Most residential radon mitigation systems in the Guelph area run about $3,200 to $4,000. Larger, commercial or complex homes can be higher. You always get a firm written quote before any work begins.

Health Canada recommends taking action to reduce radon when the level is above 200 Bq/m3, and the World Health Organization suggests a stricter reference level of 100 Bq/m3. We design every system to bring your home below 75 Bq/m3, well under both, so you have real margin.

A typical residential system is installed in a single day. We then run a post-install radon test, a minimum of three days, to verify your home is below the 75 Bq/m3 guarantee before we call the job done.

Yes. We guarantee your home will measure below 75 Bq/m3 after mitigation, or as low as reasonably achievable (ALARA) in the rare case that a building restriction physically prevents reaching that number. Either way it is confirmed by a post-install verification test, and if the result is not where it should be, we make it right.