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About us

The certified professionals behind South West Radon

We know radon gas. South West Radon is a C-NRPP certified radon mitigation and measurement contractor serving Kitchener, Waterloo, Cambridge, Guelph and the surrounding region, and the person who quotes your job is the person who installs it.

C-NRPP Certified Professionals Substantial Liability & Pollution Insurance Guaranteed Below 75 Bq/m3 or ALARA Post-Install Verification Test
Who you are dealing with

Who is South West Radon?

South West Radon Pros Inc. is a locally owned radon contractor led by Phil Mendes, a C-NRPP certified radon professional. C-NRPP is the Canadian National Radon Proficiency Program, the certification Health Canada points homeowners to when choosing someone to measure or mitigate radon.

Phil Mendes, C-NRPP Certified

Phil does the diagnostics, designs the system and installs it. That is deliberate rather than a scaling problem: the measurements that decide where a suction point goes are the same measurements that tell you whether the install worked, and handing that off between two people is where systems end up treating one corner of a basement. Customers consistently describe the same thing in their reviews, which is a walkthrough with no upselling and an installation done carefully.

How we work

What you can expect from us

Measure first, then design

Pressure field extension measurements before anything gets cut. It is the step that separates a system from a pipe, and it is the one most often skipped.

Guarantee a number, not an effort

Below 75 Bq/m3, or as low as reasonably achievable where a building restriction prevents it. Not a percentage reduction, which only means something if you trust the before reading.

Prove it afterwards

A post-install verification test, and the reading handed to you. If it did not land where we said, that is our problem to solve rather than yours to discover.

Say when you do not need us

If your level is low, or a cheaper measure is genuinely the right call, that is what you will hear. Radon is a one-time purchase for most households, so a bad recommendation buys us nothing.

Explain rather than sell

The site inspection is a paid, educational walkthrough, and the fee is credited back in full if you proceed. You are paying for the assessment, not sitting through a pitch.

Be here afterwards

We are local. If something needs looking at in three years you are calling the same number and reaching the same person.

Credentials and coverage

Certification, insurance and service area

CERTIFICATION

C-NRPP certified, the Canadian National Radon Proficiency Program, for both radon measurement and radon mitigation.

INSURANCE

Substantial liability and pollution insurance carried on every job.

LEGAL ENTITY

South West Radon Pros Inc., operating as South West Radon.

SERVICE AREA

Kitchener, Waterloo, Cambridge, Guelph, and the surrounding Waterloo Region and Wellington County townships.

What homeowners say

What our customers say about working with us

These are unedited Google reviews from homeowners we have worked with. Nothing here is written by us.

Professional from start to finish. The team clearly knows their business, communicated consistently, and provided transparent, detailed quoting with no surprises. The installation was completed with clean, precise workmanship, and the entire experience reflected a high level of expertise and integrity. Have already referred to others and highly recommend.

Glen BergenGoogle review

We recently moved to a new place, and decided to do radon mitigation after a few months of testing. We've had several other contractors through in the past few months, and South West Radon was by far the best experience overall. The entire process with South West Radon was outstanding. Phil took the time to do a thorough visit and consultation, explaining the options, steps, showed us examples of different units, noise level, etc., without any feeling of upselling or pushing. During the install, we discovered an issue with the layout of our home that required a modified plan, and they offered us several alternatives. Installation was quick, professional, and competitively priced. We've done continued testing and our radon levels have absolutely plummeted, and are comparable with outdoor ambient levels, with virtually no negatives like noise.

HillsideGoogle review

Phil and his team are the definition of class act! When I contacted him initially, he was patiently explaining of how we shouldn't rush our decision in mitigating and get proper testing for our finished basement. I am very impressed of his professionalism. When we finally decided to mitigate, he showed up early, explained everything that him and his team were going to do. Throughout the day he made sure we were properly informed of all the procedure, and he also cleaned up the house afterward as well. Our radon level now is like barely around 5 bq/m3. If you need someone to take care of your basement radon, contact Phil!

Michael SuryaGoogle review
Areas served

Where do you install radon systems?

We cover the Waterloo Region and Wellington County: Kitchener, Waterloo, Cambridge and Guelph, plus the surrounding townships. Each city page covers what we actually run into there, because a 1960s Kitchener bungalow, a Cambridge stone basement and a new Waterloo build are three different jobs.

Get started

Talk to us about your home

Tell us your radon result if you have one, or just tell us what prompted you to look. We will tell you honestly whether you need us. Prefer to talk now? Call (519) 807-1995.

C-NRPP certified walkthrough Firm written price No sales pressure

Book my site inspection

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Protecting homes. Protecting health.

That is the whole business, and it is why the post-install test matters as much as the install.

Book My Site Inspection (519) 807-1995