Callan's Pristine Services | House, Roof, & Deck W Callan’s Pristine Services® is locally owned and operated serving our neighbors in the community. At Pristine we specialize in deck washing & deck staining, house power washing, roof cleaning, concrete & brick cleaning, & more. Phone: +1 571-330-0512 Manassas, VA 20112 United States Map Other Categories: House & Home |