What does this site do?
- separates soil vapor, outside air, liquid water and indoor humidity;
- explains a ground barrier versus full encapsulation;
- compares published Columbus prices without calling them quotes;
- provides one scope and coverage checklist; and
- collects project details for basic scope and service-area review.
What does this site not do?
An article or photo cannot diagnose a house. This site does not claim that a liner removes mold, repairs wood, controls radon or fixes a pipe. Those problems need the right trade and their own written scope.
How is evidence handled?
We link rule and system claims to public sources where we can. Cost pages show an update date. They also keep the sources apart. We do not turn a provider’s claims into facts about this service. Claims about a licence, insurance, coverage or a past job need fresh proof from the provider.
Which sources support the guide?
- City of Columbus contractor licensing information;
- Ohio’s current residential-code rule for foundations and crawl spaces;
- Franklin Soil and Water Conservation District drainage guidance;
- current published Columbus cost guides; and
- live provider specifications used to define quote fields.
Questions about one house belong in an assessment. They do not belong in a broad promise. Use the contact page to describe the crawl space.