What should I tell the office about my crawl space?
Describe known access, damp areas, odors and any existing ground covering. It is fine to leave details unknown rather than guessing.
Is encapsulation the same service as mold remediation?
They are different services. Explain the encapsulation question and any separate mold concern to the office so you can discuss the relevant needs.
Can you promise an air quality or energy savings result through this page?
No. This page does not promise health, air quality, energy savings or other performance results. Discuss the specific property and any written scope with the office.