HarborLight's Mission
At HarborLight Property Inspections, LLC, we believe that every family, business owner, investor, school administrator, and property owner deserves to know exactly what environmental conditions exist within the buildings they own, occupy, or are considering purchasing.
Our mission is to provide trusted environmental consulting services that help our clients make informed decisions, reduce risk, and create healthier indoor environments throughout Southern Maine.
We specialize in identifying environmental hazards commonly found in Maine's residential, commercial, educational, and multifamily buildings, including:
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Lead-based paint inspections and XRF testing
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Asbestos inspections and bulk sampling
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Radon testing and measurement services
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Lead dust wipe clearance testing
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Lead soil testing and risk assessments
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Indoor Environmental Quality (IEQ) consulting
Whether assisting a homebuyer during due diligence, a landlord preparing a rental property, a school planning renovations, a daycare operator seeking compliance, or a business owner managing environmental risk, our goal is simple:
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Protect occupant health
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Preserve property value
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Deliver clear, science-based answers
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Serve as a trusted environmental resource for our clients and communities
Protecting People. Preserving Properties. Building Healthier Communities.
Michael was exceptional. I hired him to conduct a lead inspection, and his work was incredibly thorough and professional. Once the report was completed, he remained readily available to answer any questions I had, always responding promptly and thoughtfully. Not only did he provide a comprehensive and detailed report, but he also connected me with qualified professionals who could assist with remediation efforts beyond his scope of practice. His expertise, responsiveness, and willingness to help throughout the entire process were greatly appreciated. I highly recommend Michael's services without hesitation.
Yael H.
We had Mike come and inspect our house for lead. He came over at my first availability and went through my house very thoroughly! I highly recommend HarborLight for all of your inspection needs! They are incredibly knowledgeable, professional and helpful.
Jonathan C.
I highly recommend Mike and HarborLight Property Inspections. I have high standards and seek quality service. This means that I have high expectations for a company being responsive, providing timely and effective communication, understanding and placing the client's needs first. Mike exceeded my expectations on all fronts. It feels that there are fewer and fewer companies and business owners today that hold themselves to a high standard. I'm glad to say that Mike and HarborLight Property Inspections is bucking that trend.
Robert L.
Michael was very friendly and professional. It was evident that he invests in modern solutions to meet the times and make quick work of his inspections. Without a doubt, I'll be calling on Michael and his team in the future.
Jared S.
Maine's Trusted Lead, Asbestos & Radon Specialist
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Maine DEP Certified Lead Inspector (#LI-0526)
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Maine DEP Certified Asbestos Inspector (#AI-1021)
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EPA RRP Certified Renovator (#R-I-T22351326-00012)
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IAC2 Certified Indoor Air Consultant (IAC2-94725)
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InterNACHI Certified Professional Inspector (#24080105)
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CCPIA - Certified Commercial Property Inspector (#003296)
Service Locations
Cumberland County
York County
Androscoggin County
Socials
Radon Testing Services
HarborLight Property Inspections provides professional radon measurement services throughout Southern Maine using calibrated Continuous Radon Monitors (CRMs) for real estate transactions, due diligence, and routine indoor air quality testing, helping clients make informed decisions.
Lead Hazards in Maine Homes What You Need to Know
Many homes built before 1978 in Maine may contain lead-based paint, especially properties with original windows, doors, trim, stairs, siding, or other historic building components.
A lead inspection should be considered if your home was built before 1978, contains deteriorating paint, has high-friction surfaces such as windows, doors, and stairways, or if children under the age of six live in or regularly visit the property. When lead-based paint deteriorates or is disturbed during renovation, invisible lead dust can be released into the home environment.
The good news is that several testing methods can identify potential lead hazards, including XRF Lead Paint Inspections, Lead Dust Wipe Testing, Lead-in-Soil Testing, and Lead-in-Water Testing. A comprehensive evaluation often combines multiple testing methods to provide a complete picture of lead risks and help protect your family, tenants, employees, or future occupants.
HarborLight Property Inspections provides certified lead inspections across Southern Maine, specializing in pre-1978 homes where lead-based paint hazards are most common.
We are Maine DEP Licensed Lead Inspectors (License #LO-0020), providing XRF lead paint testing, limited lead-safe certificates (LLSC), and compliance inspections for real estate transactions, insurance requirements, and property owners.
Our inspections go beyond basic testing—we apply building science and real-world experience to identify lead hazards, interpret results, and provide clear next steps.
From Portland to Biddeford and across Southern Maine, we help homeowners, landlords, and investors make informed, confident decisions.
About Maine’s Lead Inspection Experts
XRF Lead Paint Testing using a calibrated, non-destructive analyzer (Viken Pb200e)
Component-Specific Results documented by location and substrate
Clear Interpretation of Findings in accordance with Maine DEP and EPA standards
EPA-Compliant Dust Wipe Sampling (floors, window sills, and troughs)
Accredited Laboratory Analysis for defensible, court-ready results
Limited Lead-Safe Certificates (LLSC) issued for qualifying components
Full Compliance with Maine DEP Chapter 424
👉 Results delivered within 24–48 hours to support real estate transactions, insurance requirements, and property decisions.
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Michael Marquis is a Maine DEP Licensed Lead Inspector specializing in XRF lead paint inspections for pre-1978 homes across Southern Maine.
With a background in real estate, property management, and environmental inspections, Michael brings a unique, building science–driven approach to identifying lead hazards and helping clients navigate compliance, insurance, and real estate requirements.
Certifications & Licenses:
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Maine DEP Licensed Lead Inspector
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Maine DEP Licensed Asbestos Inspector
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EPA Certified Renovator (RRP)
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InterNACHI Certified Professional Inspector (CPI)
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CCPIA Certified Commercial Property Inspector
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IAC2 Certified Indoor Air Consultant
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Maine-Licensed Associate Broker
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Accredited Residential Manager (ARM)
Michael’s inspections go beyond basic testing combining environmental expertise with real-world property experience to deliver clear, actionable results that stand up to Maine DEP standards, real estate transactions, and insurance requirements.
Serving Portland, South Portland, Scarborough, Biddeford, and Southern Maine communities with older pre-1978 housing.
EPA's new lead dust rule lowers thresholds, strengthening hazard protection. Click here for the latest EPA standards.
Learn how asbestos exposure occurs, potential health risks, and steps to protect your family. Click here.
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Citizen's Guide to Radon
Understand radon risks, testing methods, mitigation options, and how to protect your home. Click here.