Contact Us You never have to go without proper heating or cooling again, because we do professional HVAC work for a great price here at H.V. Holland, Inc. Call us for the most advanced HVAC work in Jamestown, RI today! Business Address: 2 Hammett Ct Jamestown, RI 02835 Call Now ! 4014230614 Business Hours Mon-Fri 8:00am-4:00pmEmergency Service Available Find Us On: Your Name (required) Your Email (required) Subject Your Message Please leave this field empty.