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National Inspection Services


For more than 40 years, National Inspection Services has provided fast, thorough commercial property inspections and reports. We are known for our ability to handle all types of commercial real estate inspections. For example, we provide commercial property condition assessments, environmental site assessments, and all ancillary commercial inspections and reports, such as indoor air quality inspections, asbestos inspections, lead inspections, radon inspections, and mold inspections. Likewise, we provide environmental consulting and environmental contracting.

As our name implies, commercial real estate inspection services nationally as well as regionally and locally. Headquartered in Colorado, and we’re the leading Colorado commercial property inspection company. Above all, National Inspection Services serve commercial real estate buyers, owners, developers, investors, government agencies, and Fortune 500 companies.

If you are looking for someone to inspect your commercial property,  we are here to help. Contact us today.

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Environmental Specialists

Because so many of our clients have environmental services needs, National Inspection Services has developed expertise in a broad range of environmental due diligence, inspection, testing, monitoring, and mitigation services.

In addition to Phase I through III environmental site assessments, we offer many types of environmental consulting and contracting. National Inspection Services invite you to learn more about our environmental services and contact us about your unique needs. Further, we would be happy to give you a fast, customized quote.  And if we aren’t the right service provider for your particular situation, we’ll refer you to other trusted firms.

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Our Capabilities

We provide all levels and types of environmental inspections, property conditions assessments, and litigation support. Anywhere a commercial real estate transaction takes place, National Inspection Services is there. We provide peace of mind for those buying, selling, or holding commercial real estate by providing timely, comprehensive inspections and inspection reports.

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National Inspection Articles

Every (Working) Breath You Take

The risks of office air pollution Did you know that air within homes and other buildings can be more seriously polluted than outdoor air even in large, industrialized cities? Other research indicates that people spend about 90% of their time indoors. So, for most people, poor [...]

Radon Gas Testing

Via Continuous Monitoring Equipment Continuous Radon gas monitoring is an ideal means of determining Radon gas concentrations in any indoor environment. Placement of a small microcomputer instrument can produce accurate data in as little as 12 hours, providing a measurement of working level (WL) of Radon [...]

Contractors should know asbestos, lead-based paint, mold

General contractors and tradespeople have questions about the laws and their due diligence regarding asbestos, lead-based paint and mold. While this article is in no way a substitute for thoroughly educating yourself on state and federal environmental regulations dealing with these three hazards, we hope it [...]

Welcome To Our New Team Member, Noah D’Antonio

Mr. D’Antonio has more than 5 years of experience in the environmental consulting industry specializing in environmental due diligence and project management. Mr. D’Antonio has completed more than 200 Phase I Environmental Site Assessments (ESAs) for residential, commercial and industrial properties throughout the Western and Mid- [...]

Concrete Problems

Crumbling, Cracking, Settling, Heaving & Stains Concrete is quite literally the foundation of many of today's construction projects. It's also widely used for exterior surfaces--driveways, sidewalks, patios, stoops, steps, etc. No wonder: Concrete is strong, durable, relatively inexpensive and can be formed into many shapes and [...]

Water Pollution Down Under

The causes of groundwater contamination What is groundwater? Groundwater is simply water that has percolated down through the soil from melting snow and rain. Where it collects underground is the zone of saturation, the top of which is the water table. The collection formation is called [...]

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