Licensed and insured, Four Walls, Inc. is a trusted energy consulting firm in the Portland, Oregon metro region. Led by Ron Nardozza, Four Walls has more than 45 years of combined experience. Experienced and professional, we predict how buildings use energy, helping clients understand the energy and cost savings of their buildings. We are long-time residents of the Pacific Northwest and enjoy working with builders, architects, engineers and real estate professionals to create high-quality buildings that deliver high value.
Ron Nardozza, Founder and President
An Oregon native, Ron Nardozza attended the University of Oregon where he received a bachelor of arts in construction management. Since 1974, he has been a licensed general contractor (OR CCB). Ron has worked as a custom home builder, home remodeler, commercial tenant improvement manager and a certified home inspector.
As Founder and President of Four Walls, Inc, Ron is committed to advancing energy efficiency in the residential and commercial sectors in Oregon and Washington. Having completed thousands of home energy audits, he is dedicated to improving testing and verification techniques.