Radon Testing & Mitigation, Construction Renovation & Remodel, Handyman, Consulting Services, Home Inspections, Expert Consultant / Witness

From Radon Testing to Inspections and Construction Support, We Identify Problems and Provide Verified Solutions.

Explore a complete set of environmental services designed to protect indoor air quality, meet local codes, and reduce long-term risk. We support homeowners, builders, and real estate professionals with accurate testing, compliant construction, practical consulting, and thorough inspections. Each service is delivered with clear documentation, realistic timelines, and results you can verify.

Whether you need a single test or coordinated support across a project, our services are built to fit your property, goals, and schedule.

Four blue electronic radon monitors labeled "FAMILY TECH" on a countertop against a tiled wall.

What We Do Best:

Our services cover testing, construction, consulting, and inspections, giving you a clear path from assessment to verified results.

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Radon Services

Certified radon testing, mitigation, and inspections delivering accurate results, compliant systems, and safer indoor air.

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Inspections

Whether you’re planning a full renovation or a simple upgrade, our experienced team delivers quality craftsmanship you can trust at a price you can afford.

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Construction

We provide professional construction & radon consulting services for clients who need experienced insight and reliable guidance.

Proven Work. Documented Outcomes.

Every project follows a clear process. We assess conditions, explain options, complete the work, and verify results. Reports are written in plain language and delivered promptly, supporting real estate transactions. Our team coordinates with homeowners, builders, and agents to keep projects moving without surprises.

Testimonials

Customers, Realtors, Builders.

A contractor advised that they were not able to put in a window bar countertop in my kitchen without an architect and drawings. I knew that was not the case. Quin company came in and in a few short weeks, Ralph made my vision come to life with limited direction and under budget. Highly recommend for any home improvement. Honesty & Integrity still alive in the Upstate!

Lisa B.

The home inspection of my future home revealed a high level of radon present. I contacted Ralph Quin, a certified mitigation contractor who had performed the same service for my neighbors. Mr. Quin provided a free estimate of the work, performed the work without delay and will be following up with yearly testing. My realtor was so impressed with his service and work that she will be referring her future clients to him.

Mary Beth S.

My realtor recommended Ralph Quin after I bought my house and found out that the radon mitigation the previous owner had installed wasn't actually doing the job. Ralph quickly identified the real source of the problem — something the original installer had missed entirely — and designed a custom solution that properly addressed it.
He was incredibly knowledgeable, patient in explaining exactly what he was doing and why, and a genuine pleasure to work with. As a bonus, the basement looks noticeably better than it did before. I'd recommend the Quin Company without hesitation to anyone dealing with a radon issue.

Max P.

Start Your Service Journey

Schedule a brief consultation to review your property, timeline, and goals. We’ll recommend the right service, outline next steps, and deliver clear, compliant results you can rely on.

Contact Us