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William Arnold

Illinois Licensed Home Inspector

  • Bill is a graduate of Drexel University in Philadelphia, PA with a degree in Mechanical Engineering. Bill worked in various engineering roles for Scott Paper Company and became a Registered Professional Engineer. Bill shifted his career to packaging engineering and later packaging procurement for Scott. Bill moved to the Chicago area and continued his career in various procurement roles for Quaker Oats and others before becoming an Illinois licensed home inspector. From working summer jobs in construction to maintaining and remodeling his own residences for over 35 years, Bill brings a wealth of practical and technical experience to Dunsing Inspections. 

Illinois Licensed Home Inspector | License #450012303 | Verify License 

InterNACHI® Member ID #NACHI21052829 | View Profile

 

William_Arnold_Headshot

William Arnold

Illinois Licensed Home Inspector

William_Arnold_Headshot
  • Bill is a graduate of Drexel University in Philadelphia, PA with a degree in Mechanical Engineering. Bill worked in various engineering roles for Scott Paper Company and became a Registered Professional Engineer. Bill shifted his career to packaging engineering and later packaging procurement for Scott. Bill moved to the Chicago area and continued his career in various procurement roles for Quaker Oats and others before becoming an Illinois licensed home inspector. From working summer jobs in construction to maintaining and remodeling his own residences for over 35 years, Bill brings a wealth of practical and technical experience to Dunsing Inspections. 

 

Illinois Licensed Home Inspector | License #450012303 | Verify License 

InterNACHI® Member ID #NACHI21052829 | View Profile

 

Certifications & Qualifications

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Illinois Licensed Radon Measurement Technician | #RNIT2020219 | Verify License

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InterNACHI® Certified Professional Inspector (CPI)® | ID #NACHI21052829  | View Profile

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InterNACHI® Certified Home Appliance Inspector 

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InterNACHI® Certified Deck Inspector 

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InterNACHI® Certified Mold Inspector 

 

 

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Certified Residential HomeInspectIR® Trained Thermographer 

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NFPA Level II Certified Chimney Inspector - ASHI® 

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ASHI® (American Society of Home Inspectors) Associate Member 

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Member of the International Association of Certified Home Inspectors 

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Pennsylvania Licensed Professional Engineer | License #PE032511E | Verify License

 

 

Certifications & Qualifications (MOBILE)

 

 

Orange icon representing home and commercial building inspections Illinois Licensed Radon Measurement Technician | #RNIT2020219 | Verify License
Orange icon representing home and commercial building inspections

InterNACHI® Certified Professional Inspector (CPI)® | ID #NACHI21052829 | View Profile

Orange icon representing home and commercial building inspections

InterNACHI® Certified Home Appliance Inspector 

Orange icon representing home and commercial building inspections

InterNACHI® Certified Deck Inspector 

Orange icon representing home and commercial building inspections

InterNACHI® Certified Mold Inspector 

Orange icon representing home and commercial building inspections

Certified Residential HomeInspectIR® Trained Thermographer 

Orange icon representing home and commercial building inspections

NFPA Level II Certified Chimney Inspector - ASHI® 

Orange icon representing home and commercial building inspections

ASHI® (American Society of Home Inspectors) Associate Member 

Orange icon representing home and commercial building inspections

Member of the International Association of Certified Home Inspectors 

Orange icon representing home and commercial building inspections

Pennsylvania Licensed Professional Engineer | License #PE032511E | Verify License

 

 

Explore Our Latest Blog Posts

Explore Our Latest Blog Posts

 

Stay informed with practical tips, expert guidance, and helpful insights designed to protect your home and make homeownership easier. Explore our latest articles covering home inspections, maintenance, common concerns, and what homeowners and buyers should know.

Home Inspections Homebuyers & Homeowners Real Estate Agents
Your Inspector Found Some Issues. Now What?

Your Inspector Found Some Issues. Now What?

An inspection report can feel overwhelming. Learn how to prioritize findings, compare repair proposals, verify contractor credentials, and choose the right next steps before committing to work on

Read More
Jamie Dunsing Oct 5, 2026
Home Inspections Commercial Inspections Homebuyers & Homeowners
Insurance Inspections

Insurance Inspections

Your insurer may request a property inspection even after you have purchased a home. Learn what insurance inspections can cover, why they are requested, and how to prepare for the process.

Read More
Jamie Dunsing Oct 5, 2026
Home Inspections Homebuyers & Homeowners Real Estate Agents
Does a home buyer really need a Mold Inspection?

Does a home buyer really need a Mold Inspection?

Mold concerns often start with moisture or visible warning signs. Explore how a home inspection, specialized mold evaluation, and third-party testing can help you understand what needs further

Read More
Jamie Dunsing Oct 5, 2026
Home Inspections Homebuyers & Homeowners Real Estate Agents
Realtor Reforms: What Home Buyers Can Expect After the NAR Settlement

Realtor Reforms: What Home Buyers Can Expect

Changes following the 2024 NAR settlement raised new questions for buyers and real estate professionals. Jamie shares his perspective on buyer representation, compensation, and the potential impact

Read More
Jamie Dunsing Oct 5, 2026
Home Inspections Homebuyers & Homeowners Real Estate Agents
Uh-Oh, Honey, I think we just bought a house!

Uh-Oh, Honey, I think we just bought a house!

The final walkthrough deserves as much attention as the earlier steps in your purchase. Use our pre-closing checklist to review repairs, test systems, and spot changes before taking ownership.

Read More
Jamie Dunsing Oct 5, 2026
Home Inspections Commercial Inspections Homebuyers & Homeowners Real Estate Agents
Does your house suck? (Water, that is!)

Does your house suck? (Water, that is!)

Split-faced block can allow water into a building when construction details and maintenance fall short. Learn what to look for and why moisture concerns may call for a specialized evaluation.

Read More
Jamie Dunsing Oct 5, 2026

Our Expert Inspection Services

Our Expert Inspection Services

Explore our comprehensive home and commercial inspection services, designed to give Chicagoland homebuyers, sellers, and property owners the expert insights needed to make confident, informed decisions. Whether you're purchasing, selling, or maintaining a property, our experienced team provides thorough inspections and specialized testing to uncover hidden concerns, protect your investment, and give you greater confidence in every decision.

Radon Testing

  • Radon is an invisible, odorless gas and the second leading cause of lung cancer. Our professional radon testing services deliver accurate results, giving you the information you need to protect your home and the people who matter most.

Sewer Surveys

  • Sewer line problems are often hidden from view and impossible to detect without a camera inspection. Our professional sewer camera inspections provide accurate results to help protect your home, your investment, and your peace of mind.

Mold Testing

  • Mold can grow unnoticed behind walls and in hidden areas, impacting your home's air quality and your family's health. Our professional mold testing services provide accurate results to help protect your home and the people who matter most.

Chimney Scan

  • Hidden damage inside your chimney can increase the risk of dangerous house fires if left undetected. Our professional chimney scan services provide detailed results to help protect your home, your family, and your peace of mind.

Thermal Imaging

  • Hidden moisture, electrical hot spots, and missing insulation can lead to costly damage if left undetected. Our professional thermal imaging inspections provide detailed insights to help protect your home and your investment.

EIFS/Dryvit®

  • EIFS (synthetic stucco) can allow hidden moisture intrusion if not properly installed or maintained. Our professional EIFS inspections provide accurate results to help protect your home and prevent costly damage.