Corey's quote came in equal to others for sealing my conditioned, dirt crawl space, but with superior materials. His use of the 20mil CleanSpace liner is impressive. On time, responded to emails promptly even after the job was completed and fully paid, left excess material and had to think on the fly as I left him and his employee at my house alone for long stretches of the job.
Respectful, friendly, prompt, and my crawl space is now the cleanest room in the house. Great job all around. Highly recommended.